Topic:"Infrastructure Planning" in M11307

The 2020 Integrated Resource Plan (IRP) process identified both [Action Plan and Roadmap](https://irp.nspower.ca/files/key-documents/final-irp-report/E3_NS-Power-2020-IRP-Report_Summary_Nov-27-2020.pdf) items intended to advance NS Power's...

AI summary NS Power updated its Integrated Resource Plan (IRP) in 2023 to align with Nova Scotia's 2030 environmental targets and ongoing policy changes. The evergreen IRP process included updated assumptions, modeling scenarios, and stakeholder engagement to support a long-term electricity strategy focused on decarbonization.

MODELING APPROACH Capacity expansion and production cost optimization modeling developed least-cost portfolios for each scenario. The scenarios are compliant with current legislation, including the 2030 environmental policy targets of coal...

AI summary The modeling approach outlines least-cost portfolios for scenarios compliant with 2030 environmental targets (coal phase-out, 80% renewable electricity) and net-zero timelines (2035, 2050). It evaluates resource strategies (with/without Atlantic Loop), electrification pace, and sensitivities, producing results like NPVRR, emissions, reserve margins, and generation profiles.

Wind & Solar - There is a similar wind buildout for all scenarios between 2025 and 2030. For all scenarios modeled, a significant buildout of approximately 1500MW of new wind capacity (beyond the 600MW in service today) is added to the sys...

AI summary The analysis outlines a planned 1500MW wind and 200MW solar buildout by 2030 across scenarios. The bi-directional Atlantic Loop scenario explores renewable exports/importsWith Hydro Quebec, requiring additional wind capacity. Earlier wind expansion is observed in the No Atlantic Loop reference scenario compared to the With Atlantic Loop scenario.

Battery Storage - Battery storage is added to all scenarios with additions beginning as soon as 2025 in many scenarios. - At least 100MW of 4-hour battery storage is added by 2030 in the majority of scenarios. - Increased additions of batt...

AI summary Battery storage is projected to be deployed starting in 2025, reaching at least 100MW by 2030. No Atlantic Loop scenarios show higher adoption. Storage provides energy arbitrage, curtailment reduction, and wind integration, but voltage/frequency support is not modeled in the IRP framework.

Integration Assets - The reliability tie[1](#page-7-3) is required in all scenarios to support the integration of variable renewable generation (wind and solar) and to serve as the first leg of the Atlantic Loop (the latter in the with Atl...

AI summary The document discusses the necessity of the Reliability Tie transmission line for integrating variable renewable energy and supporting the Atlantic Loop. It outlines the addition of synchronous condensers by 2030 to support wind integration and references figures illustrating new resource capacity installations by 2030, 2035, and 2050.

GENERATION MIX The evergreen IRP modeling results demonstrate that annual generation profiles are increasingly decarbonized through the planning horizon in line with environmental policy changes in 2030 and 2035 (please refer toFigure 4)....

AI summary The document discusses the decarbonization of Nova Scotia's generation mix through 2030 and 2035, emphasizing wind energy's role, curtailment rates (10–45%), and emission reductions. Gas resources are used in peaking capacity, with lower emissions in all scenarios compared to 2005 levels.

IRP ACTION PLAN

AI summary The document introduces the Integrated Resource Plan (IRP) Action Plan, outlining key acronyms such as NPVRR, SMRs, HQ, HFO, C2G, and DSM. It serves as a regulatory proceeding document for Nova Scotia, focusing on energy planning and management.

ITEM 2: ELECTRIFICATION Electrification is a key variable in this IRP as increased electric vehicle (EV) adoption and heating electrification play a significant role in increasing load requirements through the planning horizon. The evergre...

AI summary Electrification is a critical factor in Nova Scotia's Integrated Resource Plan (IRP), driven by rising electric vehicle adoption and heating electrification. These trends are projected to increase load requirements by approximately 200MW by 2030, as reflected in the IRP's load forecast.

Item 2a: Electrification Strategy Publish Electrification Strategy report, developed as part of the IRP Action Plan, in 2023 with opportunity for stakeholder review and comment.

AI summary The Electrification Strategy report, developed as part of the Integrated Resource Plan (IRP) Action Plan, was published in 2023 with stakeholder review and comment opportunities.

Item 2c: Electrification Impacts – Transmission and Distribution System Address electrification impacts on the Transmission & Distribution system as additional experience and data become available. This will include an analysis of availabl...

AI summary The document outlines plans to analyze electrification impacts on Nova Scotia's transmission and distribution systems, including T&D capacity assessments, mitigation strategies, and cost estimates. It emphasizes leveraging data from NS Power's AMI implementation as it becomes available.

Item 3a: Thermal Plant Retirement Proceed with Trenton 5 retirement plan based on the updated evergreen IRP projections (2027/2028). NS Power will manage operating restrictions of the thermal fleet to meetfirm capacity requirements are met...

AI summary Proceed with retiring Trenton 5 based on updated IRP projections (2027/2028). NS Power will manage thermal fleet operations to meet capacity needs while minimizing utilization to reduce capital investment. Develop coal retirement plans for remaining units, considering cold reserve modes to integrate new resources and reduce utilization over time.

Item 3f: Battery Storage Capacity Develop 4-hour battery storage additions to the system targeting at least 100MW in-service by 2030, with battery storage additions beginning by 2025. Continue to explore the potential benefits of additiona...

AI summary The proceeding recommends developing 4-hour battery storage capacity targeting 100MW by 2030, with initial additions by 2025. It also suggests exploring benefits of exceeding this target as part of the 2030 energy transition.

Item 4b: Hybrid Peak Electrification Scenario Further assess the value of the hybrid peak building electrification scenario based on the outcomes of the evergreen IRP. This will include development of program cost estimates and validation...

AI summary The document outlines the assessment of a hybrid peak building electrification scenario using the evergreen IRP framework. It emphasizes developing cost estimates, validating savings potential, and leveraging insights from North American utilities that have implemented similar programs.

ITEM 5: AVOIDED COSTS OF DSM NS Power will update avoided costs of DSM based on the evergreen IRP in collaboration with the DSMAG, targeting completion before the end of 2023.

AI summary NS Power will update DSM avoided costs using the evergreen IRP in collaboration with DSMAG, aiming for completion by late 2023. This aligns with regulatory requirements for accurate cost recovery assessments in demand-side management programs.

IRP ROADMAP The following roadmap items were identified to monitor for changes in the planning environment and support progress on the path to 2030 and beyond. NS Power will monitor the roadmap items in parallel with execution of the Actio...

AI summary The IRP Roadmap outlines items NS Power will monitor to track changes in the planning environment and advance progress toward 2030 and beyond, executed in parallel with the Action Plan.

ITEM 1: WIND INTEGRATION STUDIES Publish the results ofthe ongoing wind integration studiesin 2023. Provide guidance on integration asset requirements as an outcome in alignment with the planned variable renewable capacity additions. Conti...

AI summary The proceeding requires publishing results of ongoing wind integration studies by 2023, aligning asset requirements with variable renewable capacity additions, and monitoring for divergence from the evergreen Integrated Resource Plan (IRP) model, with updates triggered as needed.

ITEM 2: SUSTAINING CAPITAL Pursue economic reinvestment in existing hydro and combustion turbines with individual capital applications as applicable; economic justification as part of a capital application will be required to confirm a dec...

AI summary The text outlines sustaining capital investment strategies for existing hydro and thermal units, requiring economic justification for Mersey hydro redevelopment. It emphasizes aligning investments with utilization projections and retirement dates, while monitoring IRP assumptions. Significant deviations may trigger ELCC/PRM analyses to assess reliability and capacity needs.

ITEM 4: INSTALLED COSTS OF WIND, SOLAR AND ENERGY STORAGE Continue to track the installed costs of wind, solar, and energy storage to look for significant variations from the trajectories analyzed in the evergreen IRP. If observed, update...

AI summary The document emphasizes the need to monitor installed costs of wind, solar, and energy storage to identify deviations from the Integrated Resource Plan (IRP) trajectories. If significant variations are found, adjustments to the capacity mix will be required to ensure alignment with the IRP.

ITEM 6: ELECTRIFICATION & LOAD GROWTH Continue to monitor electrification and load growth in Nova Scotia relative to the 2022 and 2023 Load Forecast reports which incorporate electrification impacts. Also, monitor for the addition of large...

AI summary The document emphasizes the need to continue monitoring electrification and load growth in Nova Scotia, referencing the 2022 and 2023 Load Forecast reports. It also highlights the importance of tracking the addition of large industrial customers that could influence resource requirements.

ITEM 7: EVERGREEN IRP Refine the Action Plan and Roadmap items via an evergreen IRP process. This process should facilitate annual updates as conditions change and technology or market options develop, and as Action Plan items are complete...

AI summary The document outlines the need to refine the Action Plan and Roadmap items through an evergreen Integrated Resource Plan (IRP) process, allowing for annual updates as conditions, technologies, and market options evolve. NS Power will include summaries of updates in IRP Action Plan reporting and seek stakeholder feedback during the update process.

ITEM 8: EMERGING TECHNOLOGIES Monitor developments in technology/enabling policy for emerging resources including, but not limited to, SMRs, geothermal, hydrogen combustion turbines, and long duration storage. Significant changes in cost o...

AI summary The document discusses the need to monitor emerging technologies and enabling policies for resources such as SMRs, geothermal, hydrogen combustion turbines, and long duration storage. It highlights that significant changes in cost or availability compared to IRP assumptions may require specific analysis.

ENABLING THE ACTION PLAN Although the evergreen IRP model provides a range of outcomes to 2050, the Action Plan reflects NS Power's near-termpath forwardand the progressionof these identified resources and programs will be critical to meet...

AI summary The document discusses NS Power's updated 2030 Resource Development Plan and the importance of the Integrated Resource Plan (IRP) in achieving decarbonization targets. It outlines the project life cycle and highlights the need for additional actions based on the Roadmap items to support the path to 2030 and beyond.

CONCLUSION The evergreen IRP Action Plan and Roadmap will play a key role in enabling NS Power to meet the challenges and opportunities of the ever-evolving electricity planning environment. This plan serves to enable the path to 2030 whil...

AI summary The evergreen Integrated Resource Plan (IRP) Action Plan and Roadmap are essential for NS Power to achieve its 2030 decarbonization targets. The plan provides flexibility to adapt to future changes, such as electrification, climate policies, and renewable technology advancements. NS Power will provide annual updates to stakeholders and continue to work with partners to support the energy transition.

GLOSSARY The modeling scenarios and their descriptions can be accesse[d here.](https://irp.nspower.ca/files/key-documents/annual-evergreen-materials/Evergreen-IRP-Updated-Modeling-Scenarios-Descriptions.pdf) For additional definitions, ple...

AI summary The glossary defines key terms related to energy infrastructure and planning, including the Reliability Tie, Atlantic Loop, Variable Renewable Energy, and Modified Mid DSM. These terms are important for understanding modeling scenarios and integrated resource planning.

Substantive Comments on Evergreen Update We provide our comments in this section, noting that the evergreen IRP process includes a vast number of assumptions, variables, and results. Silence on a particular aspect of the Evergreen Update s...

AI summary The comments acknowledge NSPI's Evergreen Update as thorough but emphasize the need to monitor uncertain factors like hydrogen industry development in Nova Scotia, which could impact electricity demand and low-carbon fuel supply. The document highlights key efforts required and cautions against interpreting silence as agreement.

A. NSPI should maximize use of best practices competitive procurement to mitigate costs, risks in needed resource investments We note that the Evergreen Update includes a substantial amount of identified investments in the near term that a...

AI summary NSPI must adopt competitive procurement practices to manage costs and risks associated with significant near-term investments outlined in the Evergreen Update, including 1,500 MW wind, 200 MW solar, transmission upgrades, battery storage, and synchronous condensers by 2030.

C. The Atlantic Loop is a large-scale, interregional megaproject that carries with it potentially unparalleled costs, benefits, and risks In its Final IRP Report issued in late 2020, the Atlantic Loop project was not specifically mentioned...

AI summary The Atlantic Loop project, modeled by NSPI in its IRP, involves transmission lines between New Brunswick and Nova Scotia with potential costs of $1.7 billion. It provides up to 550 MW of firm capacity, relying on ISO New England market price forecasts. The project is central to NSPI's Evergreen Update and IRP Action Plan.

Overall PLEXOS Modeling, NPVRR and Ranking Implications Attached to these comments are two tables, from NSPI's results posted in Excel format. Table 1 contains the modeling results for NSPI's twenty-four (24) scenario and sensitivity runs....

AI summary The document attaches two tables from NSPI's modeling results, including 24 scenarios and a Synapse-developed ranking based on net present value of revenue requirements (NPVRR). Load level variations across scenarios necessitate cautious interpretation of NPVRR comparisons. Additional tables detail capacity additions by scenario and year.

1. No Atlantic Loop as Preferred Plan The lowest cost 26-year NPVRR (including distributed solar PV costs and end effects) base model run under the "current policy and trends" electrification assumptions for Nova Scotia is the No Atlantic...

AI summary The No Atlantic Loop scenario (CE1-E1-R2) is identified as the lowest-cost 26-year NPVRR model under current electrification assumptions, costing $130 million less than the Atlantic Loop base model. A hybrid peak mitigation variant reduces costs further by $2.33 billion, while a bi-directional flow sensitivity model shows even lower costs but lacks contractual commitments with Quebec. Synapse supports reassessing these scenarios with clearer cost data.

2. Reliability Tie and Regional Integration NSPI continues to show need for the development of the Reliability Tie, and the IRP modeling results reflect the inclusion of the Tie, with an in-service date of 2028. Action Plan Item 1a is deve...

AI summary NSPI emphasizes the necessity of the Reliability Tie for wind resource integration by 2028, with IRP modeling supporting its inclusion. By 2030, 2,000 MW of wind capacity is required. Synapse recommends prioritizing the Tie's development. The Action Plan also includes exploring Atlantic Loop integration.

Wind Nameplate Capacity by Scenario Scenario 2025 2027 2029 2030 2035 2050 CE1-E1-R1 919 1,497 1,897 2,097 2,497 3,077 CE1-E1-R1 AAT 919 1,497 1,897 2,097 2,695 3,246 CE1-E1-R1 BD 919 1,497 1,897 2,847 3,586 4,011 CE1-E1-R1 BPDSM 919 1,497...

AI summary The table presents wind nameplate capacity projections across multiple scenarios (e.g., CE1-E1-R1, CE1-E1-R2) from 2025 to 2050, illustrating variations in capacity growth under different planning assumptions and regulatory conditions.

3. Solar and Wind Resource Selection 200 MW of utility-scale solar PV is chosen by the model in all scenarios and is in service by 2025. Including the planned 372 MW of rate base procurement wind, the No Atlantic Loop scenario includes rou...

AI summary The model selects 200 MW of utility-scale solar PV for deployment by 2025 across all scenarios. The No Atlantic Loop scenario includes approximately 1,500 MW of new utility-scale wind capacity by 2030, combining planned 372 MW rate base wind procurement with additional wind resources.

4. Battery Energy Storage Resource Selection and Capacity Accreditation for Portfolio of Renewables and Battery Energy Storage, with Associated Peak Mitigation Effects from Hybrid and Demand Response Resources The model selects 4-hour dura...

AI summary The model selects 4-hour duration battery energy storage resources based on the ELCC parameter's effect on capacity value. Matter 10905, which is ongoing, addresses interconnection study needs. The table outlines battery resource additions by year and scenario.

In our opinion, the pre-IRP capacity value study from 2019 (used in the 2020 IRP) does not fully capture the diversity effects that exist among battery energy storage, wind, solar, and demand response resources, and the capacity accreditat...

AI summary The pre-IRP capacity value study from 2019 is criticized for not fully capturing diversity effects among battery energy storage, wind, solar, and demand response resources. This affects the PLEXOS model optimization and the ELCC profile used in the IRP update. An updated study is recommended to better reflect the interactive effects of these resources on portfolio ELCC and capacity expansion modeling.

5. Fast Acting Capacity and Plant Retirement and Conversion The key new capacity resources seen across all of the model runs are 1) conversion of coal to heavy fuel oil (HFO) at relatively low annual capacity factor operation (459 MW, 3 pl...

AI summary The document discusses the key new capacity resources identified in model runs, including the conversion of coal to heavy fuel oil and gas steam, as well as new CT additions. The scenarios show significant variation in the need for these resources by 2030, 2035, and 2050, with the lowest CT capacity addition in hybrid peak and modified DSM scenarios under the No Atlantic Loop context.

New CTs and Reciprocating Plans Nameplate Capacity by Scenario Scenario 2025 2027 2029 2030 2033 2035 2050 CE1-E1-R1 0 0 150 150 150 300 1,550 CE1-E1-R1 AAT 0 150 450 600 750 750 1,650 CE1-E1-R1 BD 0 170 320 320 320 320 1,670 CE1-E1-R1 BPD...

AI summary The document presents capacity data for various scenarios related to new combined cycle (CT) and reciprocating engine capacity additions. Synapse acknowledges the value of converting coal units for low-cost capacity but raises concerns about the robustness of the capacity value attributed to new battery energy storage resources. It recommends further study and an updated Integrated Resource Plan (IRP) analysis before committing to significant CT additions.

7. Import / Export Parameters and Curtailment Synapse supports NSPI's plans to continue to review curtailment issues and identify opportunities to reduce curtailment, as seen in Action Plan Item 3d. Synapse recommends that NSPI explicitly...

AI summary Synapse supports NSPI's efforts to review curtailment and reduce it by analyzing import/export energy flow patterns. It recommends detailed data disclosure in the next IRP and inclusion of high-battery-capacity scenarios to mitigate curtailment, despite algorithmic limitations from ELCC effects.

8. Hydrogen as a Fuel or Hydrogen Production as Additional Load The model is allowed to select hydrogen as a zero emissions fuel in all runs. Notably, only 50 MW of hydrogen-fueled CTs are added, and very late in the planning horizon (2047...

AI summary Hydrogen as a fuel is only considered in a high-cost renewable energy scenario, adding 50 MW of CTs by 2047. Increased load from hydrogen production raises NPVRR but doesn't affect pre-2030 Action Items related to procurement and reliability.

Roadmap The roadmap items as currently identified are reasonable. Item 2, Sustaining Capital, notes the potential for a possible ELCC or planning reserve margin study, for different reasons than the ones we have identified above. Synapse e...

AI summary The roadmap items are deemed reasonable, with Item 2, Sustaining Capital, highlighting the potential for an ELCC or planning reserve margin study. Synapse strongly supports this roadmap direction.

Table 1. Modeling Scenario NPVRR Metrics Scenario Info, All Scenarios NZ 2035 Current Policy and TrendsAtlantic Loop Adjusted Atlantic Loop Timing CE1-E1-R1 AAT $ 18,700 $ 7,440 $ 26,140 $ 8,970 $ 8,970 NZ 2035 Current Policy and TrendsAtl...

AI summary The table presents various modeling scenarios with their corresponding Net Present Value of Revenue Requirements (NPVRR) metrics under different conditions, such as adjusted timing, wind integration constraints, and the inclusion of carbon capture or hydrogen. The scenarios explore the financial implications of different policy and infrastructure choices.

Review of Nova Scofia Power's Evergreen IRP, Updated Acfion Plan and Roadmap (August 8, 2023)

AI summary The document reviews Nova Scotia Power's Evergreen Integrated Resource Plan (IRP), updated Action Plan, and Roadmap as of August 8, 2023, focusing on regulatory compliance and strategic energy planning.

1. Background On August 8, Nova Scofia Power published its updated IRP acfion plan and roadmap, along with responses to stakeholder comments on the final IRP modeling results. On September 8, Bates White filed comments on that document.

AI summary Nova Scotia Power updated its Integrated Resource Plan (IRP) action plan and roadmap, responding to stakeholder feedback on final IRP modeling results. Bates White submitted comments on the document, indicating ongoing regulatory engagement with the IRP process.

tances and the policy opfions, there is no fime to waste in analyzing these issues and proposing solufions, including rate design, technical support, and incenfives from NS Power, E1, or the Province. Second, the quesfion of coordinafion w...

AI summary The text emphasizes urgency in addressing rate design, technical support, and incentives from NS Power, E1, or the Province. It highlights slow progress in coordinating with neighboring utilities via infrastructure (e.g., Atlantic Loop) and wholesale market reforms (e.g., regional joint dispatch), noting delays in implementation and infrastructure projects like the Labrador Island Link. The Board is urged to stress the urgency of improving regional coordination despite limited authority.

3. Issues Raised by the Evergreen IRP and NS Power's Response to Stakeholder Comments As noted above, the Evergreen IRP representssubstanfial progress and NS Power'sresponsesto comments on the final modeling results were often quite safisf...

AI summary The Evergreen IRP shows progress, but NS Power did not address stakeholder concerns on DSM program modeling accuracy, a provincial hybrid peak mitigation study, or hydrogen production tariff development. Further evaluation of NS Power's plan is requested, including addressing raised concerns.

B. Atlantic Loop NS Power confirmed that it has chosen a "No Atlantic Loop" reference scenario (CE1-E1-R2) for planning purposes. (Response to Comments, p. 11) It declined to comment on the likelihood of a contract (or other commitment) fo...

AI summary NS Power has selected a 'No Atlantic Loop' planning scenario, while Bates White highlights financial risks and recommends joint dispatch with New Brunswick. NS Power's valuation methods for bi-directional transactions are criticized as inadequate, with concerns over reliance on uncertain forecasts. The Atlantic Loop's potential benefits and costs are debated, including impacts on system costs and renewable integration.

D. Procurement Bates White offers constructive comments on the use of best practice competitive procurements. (Bates White, pp. 3-6) We endorse Bates White's comments and elaborate on some of them. Bates White's well-advised recommendation...

AI summary The text endorses Bates White's recommendations for best practice competitive procurements, emphasizing all-source RFPs, cautious handling of utility-affiliated projects, and stakeholder engagement. It highlights regulatory differences in procurement oversight and corrects a misstatement about joint dispatch agreements and IRPs.

October 17, 2023 Ms. Crystal Henwood Regulatory Affairs Officer/Clerk Nova Scotia Utility and Review Board 1601 Lower Water Street, 3rd Floor P.O. Box 1692, Unit "M" Halifax, NS B3J 3S3 Re: M11307 Evergreen IRP Reply Submission Dear Ms. He...

AI summary NS Power submitted an updated Evergreen IRP in August 2023, reflecting changes in environmental policy, load, and resource assumptions since the 2020 IRP. The update aligns with Nova Scotia's 2030 environmental targets and demonstrates the company's commitment to adapting its long-term electricity strategy in response to policy and market changes.

Reflections on the Evergreen IRP Analysis General Comments on the Update Process, Reasonability of Analysis and Key Findings Comments from Board Counsel's consultants and many participants were generally positive with respect to the qualit...

AI summary Board Counsel consultants Synapse and Bates White generally support the Evergreen IRP Update's analysis and key findings, though Synapse notes limitations. Both emphasize the need for ongoing monitoring of factors like hydrogen industry development impacting electricity demand and low-carbon fuel supply.

l to offset a portion of the requirement for other new firm capacity resources. NS Power acknowledges this request and will investigate avenues for completing this work prior to the next IRP analysis. NS Power notes that a firm capacity be...

AI summary NS Power acknowledges a request to offset firm capacity requirements and will investigate options before the next IRP. It emphasizes the value of 18MW-40MW firm capacity and plans to proceed with 300MW of new fast-acting generation by 2027, citing feedback from PHP and Eastward Energy that further study is unnecessary due to timelines and system needs.

Pace of 2030 Resource Development Plan Execution A frequently repeated concern was with respect to the pace at which NS Power is pursuing investments required to meet 2030 decarbonization targets: namely, reaching 80 percent renewable gene...

AI summary The document discusses concerns about NS Power's pace in meeting 2030 decarbonization targets, emphasizing the role of the Integrated Resource Plan (IRP) in guiding investments. NSUARB directed NS Power to submit a detailed plan by December 31, 2023, outlining steps to achieve 80% renewable generation and phase out coal. NS Power asserts the Evergreen IRP aligns with these goals and will comply with the directive.

Urgency of the Reliability Tie Project PHP, NRR and Synapse are in agreement on the urgency of progressing the Reliability Tie project given its noted importance to the long-term strategy based on the key findings of the Evergreen IRP Upda...

AI summary PHP, NRR, and Synapse agree on the urgency of the Reliability Tie project, citing the Evergreen IRP Update. NS Power acknowledges this urgency and will proceed with the project per the IRP Action Plan Item 1a.

Clean Electricity Regulation and Impacts on the Long-Term Strategy PHP and NRR commented on the importance of participating in the CER consultation process with the Federal Government and assessing the impacts of this pending regulation on...

AI summary PHP and NRR emphasized the importance of engaging with the Federal Government's Clean Electricity Regulation (CER) consultation process and evaluating its impact on Nova Scotia's long-term electricity strategy. NS Power will continue collaborating with Environment and Climate Change Canada (ECCC) as outlined in Road Map Item 5.

The Path Forward The Evergreen IRP Update was undertaken due to the continued pace of change in the planning environment, including significant shifts in environmental policy. In particular, since the 2020 IRP process, Nova Scotia has esta...

AI summary The Evergreen IRP Update addresses evolving environmental policies, including Nova Scotia's 2030 renewable electricity targets and coal phase-out. NS Power emphasizes alignment with the 2020 IRP's conclusions, balancing ongoing IRP Roadmap items with investments per the 2030 Resource Development Plan. The Terms of Reference clarify that operationalizing IRP strategies falls outside the planning exercise's scope.

Manager, Capital Filings Feedback Item # Stakeholder/ Feedback Document Reference Page Theme/Feedback NSPI Response 1 Bates White Pg. 3 RFP Process NSPI should maximize use of best prac�ces compe��ve procurement to mi�gate costs, risks in...

AI summary Bates White recommends that NSPI use competitive procurement practices with binding offers to manage costs and risks in resource investments. NSPI acknowledges the feedback but notes that procurement decisions are outside the scope of the IRP and will involve multiple processes, including those administered by the Province and subject to NSUARB review.

that correctly iden�fying the need for capacity is paramount for all subsequent IRP runs. The study should also ask whether energy to meet those peak demands should be stored in a batery, a tank, a lake or in a regionally linked, diversifi...

AI summary The text discusses the need for accurate identification of capacity in Integrated Resource Plan (IRP) runs and the importance of considering various energy storage options. It also highlights the potential for customer behavior changes due to decarbonization policies and increasing carbon prices. The Consumer Advocate supports exploring joint dispatch with New Brunswick and other provinces, including Newfoundland, for better coordination.

The ini�al analysis – failing to provide a clear ELCC for the three technologies together – was iden�fied to NSP the moment the ini�al report was presented, but, three years later, remains unaddressed. This error will make it difficult for...

AI summary The initial analysis failed to provide a clear ELCC for three technologies and remains unaddressed three years later, complicating the UARB's approval of new capacity construction. The ELCC diversity benefit of wind + storage was included in the Evergreen IRP model, but the diversity benefit of solar and storage was not included in the PLEXOS model due to limitations in earlier studies.

e renewable resource added in both the ini�al insights and dra� modeling results phases of the Evergreen IRP, with litle grid-connected solar seen in any resource plans at those stages of the process. NS Power notes that in the Final Model...

AI summary The document discusses the inclusion of renewable resources in the Evergreen Integrated Resource Plan (IRP), noting that grid-connected solar was not prominently featured in initial stages but became more significant in the Final Modeling Results. The inclusion of federal Investment Tax Credits is highlighted as a key driver for increased solar and storage deployment, with potential concerns about over-crediting diversity benefits.

batery energy storage, PHP is concerned with further study that could poten�ally delay firm inprovince resources which will be required to maintain the reliability of the system, especially with the addi�on of significantly greater amounts...

AI summary The document discusses concerns about delaying the development of firm in-province resources due to potential further studies, particularly in the context of integrating non-dispatchable renewables. It emphasizes the need for expeditious action to maintain system reliability, referencing the Evergreen IRP Update's requirement for 300 MW of new fast-acting generation by 2027. The document also addresses the planning reserve margin, noting the shift from a 20% ICAP to a 9% UCAP planning reserve margin after stakeholder feedback and the 2019 Planning Reserve Margin and Capacity Value Study.

will be released to stakeholders for their review and NS Power will request feedback on the findings. will be evaluated by further study work (Updated Ac�on Plan page 7), including generator site– specific system impact studies for new var...

AI summary The document discusses the need for further study on system impact studies for variable renewable generation and the potential use of synchronous condensers, emphasizing the importance of a system-wide approach. It also highlights the challenges of the 2030 Resource Schedule and the need for transparency and collaboration among stakeholders to achieve decarbonization goals.

(Response to Stakeholders, p. 4) We further pointed out that customers who maintain fossilfueled hea�ng systems for peak condi�ons use those systems beyond peak condi�ons, depending on energy pricing and equipment efficiency. We are concer...

AI summary The feedback highlights concerns about NS Power's analysis of dual-fueled heating systems and the Atlantic Loop project. Stakeholders recommend exploring alternative regional solutions, while NS Power states the Atlantic Loop is not anticipated to be available by 2030 and that planning is based on scenarios without it.

that correctly iden�fying the need for capacity is paramount for all subsequent IRP runs. The study should also ask whether energy to meet those peak demands should be stored in a batery, a tank, a lake or in a regionally linked, diversifi...

AI summary The text discusses the importance of accurately identifying capacity needs for Integrated Resource Plan (IRP) runs and explores options for storing energy to meet peak demands. It also highlights the need for clear standards in making trade-offs among energy resources and how customer behavior may evolve with changes in carbon pricing and technology.

The ini�al analysis – failing to provide a clear ELCC for the three technologies together – was iden�fied to NSP the moment the ini�al report was presented, but, three years later, remains unaddressed. This error will make it difficult for...

AI summary The initial analysis failed to provide a clear ELCC for three technologies, leading to unresolved issues that affect the UARB's ability to approve new capacity construction. The ELCC diversity benefit of wind + storage was included in the Evergreen IRP model, but the diversity benefit of solar and storage was not considered in the PLEXOS model due to limitations in earlier studies.

e renewable resource added in both the ini�al insights and dra� modeling results phases of the Evergreen IRP, with litle grid-connected solar seen in any resource plans at those stages of the process. NS Power notes that in the Final Model...

AI summary The document discusses the inclusion of renewable resources in the Evergreen Integrated Resource Plan (IRP), noting the addition of grid-connected solar in the Final Modeling Results phase. NS Power highlights the impact of federal Investment Tax Credits on resource plans and raises concerns about potential over-crediting of diversity benefits from solar and storage combinations.

batery energy storage, PHP is concerned with further study that could poten�ally delay firm inprovince resources which will be required to maintain the reliability of the system, especially with the addi�on of significantly greater amounts...

AI summary PHP is concerned about potential delays in building firm in-province resources due to further study on battery energy storage, which could affect system reliability with increased non-dispatchable renewables. The Evergreen IRP Update requires 300 MW of new fast-acting generation by 2027. Future modeling refinement will not eliminate the need for new firm capacity to maintain reliability.

will be released to stakeholders for their review and NS Power will request feedback on the findings. will be evaluated by further study work (Updated Ac�on Plan page 7), including generator site– specific system impact studies for new var...

AI summary The document discusses the need for further study on the impact of variable renewable generation and the potential use of synchronous condensers, as well as the importance of transparency and collaboration in achieving Nova Scotia's 2030 renewable energy goals. It highlights the role of the Public Utilities Board (PHP) in evaluating these issues and ensuring regulatory alignment with federal requirements.

Executive Summary Nova Scotia is on a path to build a cleaner, greener future for the province, phasing out coal and working towards 80% renewable energy by 2030. Inverter-based generation will displace conventional synchronous machine-bas...

AI summary Nova Scotia aims for 80% renewable energy by 2030, transitioning from coal and conventional generation to inverter-based systems. This shift requires addressing technical challenges through system studies, including EMT analyses. Initial findings were released due to delays in plant models, with an updated report pending. Mitigation measures are emphasized to ensure grid reliability.

Resource Planning for High IBR Penetration Update IBR and inertia constraints for resource planning based on the findings herein. At the present time, studies indicate that there is no hard limit on IBR penetration and dispatch if there is...

AI summary The document discusses updating resource planning for high IBR penetration, emphasizing the need for inertia and system strength metrics. It recommends a sliding scale for inertia/FFR, maintaining inertia requirements even with two tielines, and introducing SCMVA as a new metric for system strength in future grid planning.

Good Planning Practices to Integrate Renewables in Nova Scotia • Perform an annual assessment of NSPI System Inertia and Strength in the 10-year horizon to identify potential issues. See Section [2.2.](#page-18-0) Include FOR and planned m...

AI summary The document outlines planning practices for integrating renewables in Nova Scotia, emphasizing annual system inertia assessments, model requirements for grid connections, system studies for western Nova Scotia's load and hydro generation, and maintaining SCMVA levels to ensure grid reliability.

Acronyms Acronym Term 7.2.2 Resource Planning for High IBR Penetration 44 7.2.3 Good Planning Practice 45 7.2.4 System Operator Transition to High IBR Grid 45 7.2.5 Black Start Restoration Planning 46 8 Refere ences 47 Appendix A: SCMVA Be...

AI summary The text outlines sections related to resource planning for high IBR penetration, good planning practices, system operator transition to high IBR grid, black start restoration planning, and references. It also mentions an appendix with SCMVA benchmark values.

7.2.3 Good Planning Practice Recommendations to implement good planning practices to the integration of renewables in Nova Scotia: - MHI recommends performing an annual assessment of NSPI System Inertia and Strength requirements in the 10-...

AI summary The text outlines recommendations for good planning practices in integrating renewables into Nova Scotia's grid, including annual assessments of system inertia, updated model requirements for load and generation, system studies for load growth and hydro availability, and maintaining SCMVA levels.

Study Context To align with Nova Scotia's Environmental Goals and Climate Change Reduction Act, which sets greenhouse gas (GHG) emissions reduction targets of 53% below 2005 emissions by 2030 and net-zero by 2050, Nova Scotia Power is proa...

AI summary Nova Scotia Power is aligning with the province's Environmental Goals and Climate Change Reduction Act to reduce GHG emissions by 53% by 2030 and achieve net-zero by 2050. E3 conducted a deep decarbonization pathways analysis in 2019, and Nova Scotia Power's 2020 Integrated Resource Plan included electrification scenarios. The IRP identified electrification as a key action requiring further strategy development.

pumps and dual-fuel heat pumps will be essential to mitigate peak load impacts. Equally important will be coupling new heat pumps with continued building shell and other energy efficiency measures. Current performance heat pumps can genera...

AI summary High-performance heat pumps can reduce peak load impacts by 70%, lowering infrastructure costs, while current models may increase winter peak loads. Cost-benefit analyses show sensitivity to marginal electricity costs, emphasizing the need to incentivize advanced heat pumps to avoid costly generation and distribution upgrades reliant on natural gas or green hydrogen.

Recommendation 3. Support development of infrastructure "backbone" for electric vehicle charging to improve geographic coverage and fill gaps where third parties may have less incentive to invest. - Create infrastructure backbone: A robust...

AI summary The recommendation emphasizes the need for Nova Scotia Power to develop a backbone infrastructure for electric vehicle charging to improve geographic coverage and support adoption. The utility is encouraged to invest in make-ready infrastructure in high-traffic locations and partner with third-party providers to expand charger networks efficiently.

d devices to some customer types. Although not directly evaluated in this study, new construction is expected to have better economics than retrofits and should be prioritized in programs and policy. - High performance heat pumps : While t...

AI summary The document discusses the importance of prioritizing new construction over retrofits for better economic outcomes and highlights the benefits of high-performance heat pumps and heat pump water heaters in reducing emissions and energy bills. It recommends supporting infrastructure for electric vehicle charging to improve geographic coverage.

ric loads without major upgrade costs. For widespread Conclusions & Implications for Nova Scotia Power The Economics of Electrification in Nova Scotia: The Economics of Electrification in Nova Scotia electrification, these customers will r...

AI summary The text discusses the need for upgraded supply infrastructure to support electrification in certain communities in Nova Scotia, emphasizing the importance of evaluating the costs of these investments relative to the potential benefits and ensuring equitable access to electrification.

Stage 2 - Case Building - o Models - o IP concerns and NDAs - o Resourcing - Interconnection Studies - o Make it work! - o Timelines! - Max wind and 100% renewables - o Second tie - o New technologies

AI summary Stage 2 focuses on Case Building with subtopics including models, IP concerns, resourcing, and interconnection studies with emphasis on timelines. It also addresses maximizing wind energy and achieving 100% renewables through new technologies.

Next Steps - Stage 2 Studies Ongoing - o Current focus is Interconnection Requests - o Ongoing studies - o Control Integrations - Generation and Load Models - Protection and Control - Operating Philosophy - Equipment Specification - Harmon...

AI summary The document outlines ongoing Stage 2 studies focusing on interconnection requests, control integrations, and technical aspects including generation and load models, protection and control systems, operating philosophy, equipment specifications, and harmonics analysis. These activities are part of broader grid modernization and infrastructure planning efforts.

Key Findings Utility actions through time of use rates and programsto avoid "rebound peaks" at the beginning of off-peak hours to manage transportation loads will be crucial to minimizing costs and achieving ratepayerbenefits Encouraging a...

AI summary Key strategies include using time-of-use rates and programs to manage transportation load peaks, promoting advanced building technologies to reduce peak loads, and NS Power's electrification efforts via the E3 report and DSM initiatives. Collaboration with E1 and DSMAG on rebates and pilots is emphasized for cost-effective electrification.

Electrification Focus in 2024 NS Power will continue to engage customers and representatives through the IRP Action Plan process and DSMAG to explore the electrification options that are most economic in the short to medium term using the...

AI summary NS Power plans to advance electrification through the IRP Action Plan and DSMAG, leveraging the E3 model and cost-benefit analysis for 'no regrets' initiatives. The E3 tool supports evaluating electrification benefits, with pilot projects and new initiatives to be explored during the DSM Supply Agreement or under the IRP Action Plan.

August 8, 2023 Crystal Henwood Regulatory Affairs Officer/Clerk Nova Scotia Utility and Review Board 1601 Lower Water Street, 3rd Floor P.O. Box 1692, Unit "M" Halifax, NS B3J 3S3 Dear Ms. Henwood: Re: M10504 – Evergreen IRP Action Plan &...

AI summary Nova Scotia Power Inc. (NS Power) submitted an update to its Evergreen Integrated Resource Planning (IRP) Action Plan & Roadmap for the Nova Scotia Utility and Review Board. The document was also posted on NS Power's website, linking to the 2022 Evergreen IRP materials.

Atlantic Loop The 2023 update of the Integrated Resource Plan ("IRP") is centered on the Atlantic Loop (the "Loop"). While many parties involved were looking for clear answers regarding the usefulness, cost and appropriateness of the Loop,...

AI summary The 2023 Integrated Resource Plan (IRP) update for the Atlantic Loop lacks clarity on its cost, usefulness, and appropriateness. NSP failed to address concerns about capital costs, ignored sensitivity analyses, and did not provide evidence on Hydro Quebec's capacity constraints, undermining the planning process. NRR emphasizes the need for NSP to resolve these issues before proceeding with Loop scenarios.

Conclusion The use of out-dated cost assumptions, an unmanageable in-service date, and core questions around the product available from Quebec make model runs using the Loop unsuitable for ongoing comparison. The UARB may wish to consider,...

AI summary The Loop model is deemed unsuitable for ongoing comparison due to outdated cost assumptions and Quebec product issues. The UARB is advised to consider alternative modeling approaches. NRR agrees with some IRP findings but recommends continuing the avoided costs exercise with non-Loop scenarios to avoid inappropriate capacity numbers.

dditional study will not necessarily suggest the ability for significant enough long-duration battery storage capability to substantially limit the immediate need for new firm, fast-acting generation. While battery storage does assist with...

AI summary The text discusses limitations of battery storage in replacing fast-acting generation due to duration constraints, the need for synchronous condensers to support wind integration, and the cost implications of additional condensers. NSPI and PHP emphasize the importance of system-wide studies and holistic evaluations for renewable integration and grid reliability.

Melanie Gillis Direct +1 (902) 457 9041 [email protected] 1969 Upper Water Street Suite 1300 McInnes Cooper Tower - Purdy's Wharf Halifax NS Canada B3J 2V1 Tel +1 (902) 425 6500 Fax +1 (902) 425 6350 Our File: 119490 Septemb...

AI summary Eastward Energy Inc. submits comments on Nova Scotia Power Inc.'s 2023 Evergreen Integrated Resource Plan (IRP) Update, focusing on hybrid peak mitigation, fast-acting generation, coal-to-gas conversions, the Atlantic Loop, and hydrogen. The submission highlights revisions to assumptions in the IRP and Eastward's engagement throughout the process.

Other Eastward also supports NSPI IRP Action Plan Item 2c to address the electrification impacts on the transmission and distribution (T&D) assets, and suggests that the Board set a schedule for ongoing update reporting by NSPI in this reg...

AI summary Eastward supports NSPI's IRP Action Plan Item 2c to address electrification impacts on T&D assets, recommends ongoing reporting schedules, and anticipates challenges from federal Clean Electricity Regulations. They also note NSPI's commitment to providing technical support alongside the Electrification Strategy Roadmap.

September 26, 2023 VIA EMAIL Ms. Crystal Henwood Regulatory Affairs Officer/Clerk Nova Scotia Utility and Review Board 1601 Lower Water Street, 3rd Floor Halifax NS B3J 3S3 Dear Ms. Henwood: Re: M11307 - Nova Scotia Power Inc. - 2023 Everg...

AI summary The SBA supports Nova Scotia Power Inc.'s Evergreen IRP process, advocating for more frequent updates to improve resource planning and reduce customer costs. The SBA agrees with NSPI's priorities in the Action Plan but provides specific comments. The letter references the ongoing regulatory process for M11307.

NSPI should continue to pursue all infrastructure options with long development timelines The scenario analysis conducted by NSPI demonstrates that over the long-term, the NPVRR results are relatively close for resource plans with differen...

AI summary NSPI's scenario analysis shows similar long-term NPVRR results across resource plans, including those with and without the Atlantic Loop. Due to capital cost uncertainties and policy risks, the SBA recommends pursuing long-term infrastructure options. While the lowest-cost IRP excludes the Atlantic Loop, its economics could improve with federal support or export market opportunities. NSPI must prioritize reliable, low-cost service regardless of external factors.

Robust reliability analysis is required to confirm IRP conclusions The SBA has previously provided comments on the importance of continuing NSPI's analysis of system reliability with the growth in inverter-based resources. NSPI used some i...

AI summary The SBA emphasizes the need for continued analysis of system reliability as inverter-based resources grow, noting that NSPI's initial modeling requires further validation. The SBA highlights the value of collaboration in the Evergreen IRP process for transitioning to a no-coal/net-zero grid.

e Economic Consulting, Comments On Evergreen IRP Action Plan & Roadmap Update, pg. 7 of 9 7 Exhibit N-1, NSUARB M11307, NSPI 2023 Evergreen IRP Updated Action Plan and Roadmap, pg. 8 of 23

AI summary The text references Economic Consulting's comments on the NSPI 2023 Evergreen Integrated Resource Plan (IRP) Action Plan and Roadmap Update, citing Exhibit N-1 from NSUARB matter M11307.

Please refer to: David Roberts Email: [[email protected]](mailto:[email protected]) Assistant: Heidi Day Assistant's email: [[email protected]](mailto:[email protected]) September 26, 2023 VIA EMAIL Crystal Henwood Regulato...

AI summary The Consumer Advocate, represented by Pink Larkin, submits a report with comments and recommendations on Nova Scotia Power Inc.'s 2023 Evergreen Integrated Resource Plan. The submission is directed to the Nova Scotia Utility and Review Board as part of the regulatory proceeding M11307.

IN THE MATTER OF: NS Power 2023 Evergreen IRP Action Plan and Roadmap Update M11307

AI summary The document pertains to NS Power's 2023 update to its Evergreen Integrated Resource Plan (IRP) Action Plan and Roadmap, filed under matter number M11307. It outlines regulatory proceedings related to the company's strategic energy planning and resource allocation initiatives.

- On August 8, 2023 NS Power filed its 2023 Evergreen Integrated Resource Plan (IRP) Updated Action - Plan and Roadmap. [1](#page-2-2) The Updated Action Plan and Roadmap reflect the results of the 2022 IRP - evergreen process which was un...

AI summary NS Power submitted its 2023 Evergreen Integrated Resource Plan (IRP) Updated Action Plan and Roadmap on August 8, 2023, following significant changes in the planning landscape. The NSUARB invited comments, and EfficiencyOne has reviewed NS Power's filing along with comments from Synapse and Bates White.

2. IRP RESULTS - The key results of the IRP Evergreen Process are contained within the Evergreen IRP Updated Action - Plan and Roadmap. [2](#page-2-3) This Roadmap provides Key Findings associated with the 2022 Evergreen IRP - exercise, as...

AI summary The 2022 Evergreen IRP evaluated 24 scenarios without prescribing a preferred resource plan, unlike the 2014 process. NS Power used CE1-E1-R2 as the basis for its 10-year outlook, while E1 recommends re-examining 2020 evaluation criteria and clarifying CE1-E1-R2's selection. Key criteria included minimizing revenue requirements and ensuring reliability.

2.1 Notable Findings and Observations - NS Power provides several findings and observations throughout the Evergreen IRP in relation to - capacity addition and generation mix, as well as load and energy efficiency. E1 views many of these -...

AI summary NS Power outlines the Bi-Directional Atlantic Loop scenario in its Evergreen IRP, involving renewable energy exchange with Hydro Quebec. E1 critiques the project's $7.5B cost (up from $2.9B in 2020), citing unclear definition, evolving scope, and added construction risks from required wind capacity. Bates White's analysis and NB Power's views are also noted as risks.

- 3.3 Risk - The IRP scenarios include varying levels of risk depending on factors such as resource mix and - selection, in-service dates, retirement dates, and operating reserves. - Notable risks within the 2022 IRP include: - Atlantic Lo...

AI summary The 2022 IRP identifies risks related to resource mix, fuel costs, and peak mitigation effectiveness. Energy efficiency is highlighted as a low-risk, scalable resource, while emerging technologies and legislative changes pose uncertainties. E1 recommends a risk matrix to evaluate technical, legislative, and stakeholder risks in each scenario.

4. AVOIDED COSTS Avoided costs, in the context of the IRP, refer to the costs that a utility or system operator can avoid or mitigate by implementing specific resource options or DSM measures. These costs are fundamental considerations whe...

AI summary E1 requests updated avoided costs from NS Power for DSM resources (energy efficiency, solar PV, electrification) to inform the 2026-2030 DSM Plan. Stakeholder engagement with DSMAG is emphasized, with a timeline for modeling starting Q1 2024. E1 also seeks methodology for valuing demand response avoided costs and considers DER/electrification impacts on transmission/distribution.

4.1 High Distributed Energy Resources (HDER) Scenario - E1 noted that the HDER scenarios, which include significant investment in rooftop solar PV systems, - showed favorable utility NPVRR results. Notably, CE1-E1-R2 HDER stood out with th...

AI summary E1 highlights favorable utility NPVRR results in HDER scenarios, emphasizing customer-sited solar PV's value. NS Power's $3/W solar cost assumption is challenged by E1's lower $2.5/W experience. E1 argues against dismissing HDER scenarios based solely on customer costs, citing unaccounted electrification and hybrid mitigation costs, and recommends further analysis of DERs' full costs/benefits.

5. NEAR-TERM PROGRESS ON EMISSIONS REDUCTIONS - As part of the Evergreen IRP Final Modeling Results released on May 29th , 2023, NS Power provided - annual GHG emissions and energy production for each scenario. [14](#page-12-1) In Figure 1...

AI summary E1 highlights a 47% drop in emissions intensity from 2022 (557 g/kWh) to 2025 (293 g/kWh) in NS Power's IRP scenarios, stressing the urgency of meeting 2030/2035 climate targets. E1 requests NS Power to detail planned 2023-2025 activities driving this reduction and their current status, risks, and mitigation strategies.

6. ACTION PLAN AND ROADMAP

AI summary The document outlines the action plan and roadmap for implementing the Integrated Resource Plan (IRP), focusing on Demand Side Management (DSM) initiatives and regulatory processes under the Nova Scotia Utility and Review Board (NSUARB). Key stakeholders include EfficiencyOne (E1), Nova Scotia Power (NS Power), and the DSM Advisory Group (DSMAG).

into the estimation of avoided costs of T&D. E1 expects these avoided costs to grow - with increased level of system build-out anticipated as part of increased load growth in coming - years. - Action Plan Item 4b: Hybrid Peak Mitigation Sc...

AI summary NS Power and E1 collaborate on initiatives including hybrid peak mitigation, wind integration studies, renewable cost tracking, and electrification forecasts. E1 emphasizes non-technical factors, demand response, and updating load forecasts. Both parties agree on monitoring solar, storage costs, and IRP evolution.

7. CONCLUSION - E1 appreciates the opportunity to provide comments on, and recommendations related to NS - Power's updated Action Plan and Roadmap and appreciates the opportunity to participate - throughout the 2022 Evergreen IRP Process....

AI summary E1 provides seven recommendations to NS Power regarding the 2022 Evergreen IRP Process, emphasizing criteria evaluation, scenario risk analysis, hybrid peak solution clarity, DSM study limitations, NPVRR interpretation, and risk matrix development for IRP scenarios.

n of our coal fired generating units to heavy fuel oil (HFO). Peter Gregg asked that I respond to you as I, along with my team, manage the Integrated Resource Plan (IRP) that oversees this transition. The potential fuel conversion to HFO i...

AI summary NS Power discusses transitioning coal-fired units to HFO and natural gas as part of its Integrated Resource Plan (IRP) to meet 2030 decarbonization targets. The IRP emphasizes the need for diverse energy solutions, including renewables, storage, and firm generation to ensure grid reliability and support 80% renewable integration.

From: [Peachey, Mark](mailto:[email protected]) To: [Henwood, Crystal D](mailto:[email protected]) Cc: [Isnor, Jocelyn;](mailto:[email protected]) [Pronko, Steve](mailto:[email protected]); [Williams, B...

AI summary An email from Mark Peachey of Nova Scotia Power to Crystal Henwood and others, discussing the submission of an Integrated Resource Plan (IRP) update, including an Electrification Strategy Report and a Wind Integration Study, as part of Nova Scotia's energy planning process.

\ \ EXTERNAL EMAIL / COURRIEL EXTERNE \ \ Exercise caution when opening attachments or clicking on links / Faites preuve de prudence si vous ouvrez une pièce jointe ou cliquez sur un lien Hello Crystal, Please see attached copies of the Wi...

AI summary NS Power submits Wind Integration Study and Electrification Strategy Report under M11307, aligning with Evergreen IRP Action Plan Item 2a (electrification strategy) and Roadmap Item 1 (wind integration studies). Documents aim to support stakeholder review and guide renewable capacity integration.

March 7, 2024 Crystal Henwood Regulatory Affairs Officer/Clerk Nova Scotia Utility and Review Board 1601 Lower Water Street, 3rd Floor P.O. Box 1692, Unit "M" Halifax, NS B3J 3S3 Re: M11307 - Nova Scotia Power Inc. - 2023 Evergreen Integra...

AI summary Nova Scotia Power Inc. submits engagement session materials related to its 2023 Evergreen Integrated Resource Plan (IRP) Action Plan and Roadmap, following the Board's March 6, 2024 letter. Materials include Wind Integration Study and Electrification Strategy Report content, available on NS Power's IRP website.

IRP process included updates to the assumptions and new modeling scenarios to reflect significant changes since the 2020 IRP and corresponding modeling work to support the assessment of these changes. The twenty-four scenarios assessed as...

AI summary The Evergreen IRP 2023 update includes 24 scenarios reflecting changes since 2020, informing NS Power's long-term strategy and 2030 targets. Submissions from Synapse, Bates White, Grid Strategies, and others were filed, with NS Power submitting a reply and corrected appendix. Two studies were filed as part of the Action Plan and Roadmap.

ANALYSIS AND FINDINGS NS Power must meet important environmental targets by 2030, which include phase-out of coalfired generation and achieving 80% of its sales from renewable resources. The successful execution of the Evergreen IRP Update...

AI summary NS Power must meet 2030 environmental targets, including phasing out coal and achieving 80% renewable energy sales. The Evergreen IRP Update is deemed successful by intervenors and the Board, though evolving policies and technologies require ongoing adaptation. Recent developments include the Province's 2030 Clean Power Plan and federal Clean Electricity Regulations.

January 24, 2025 Ms. Crystal Henwood Regulatory Affairs Officer/Clerk Nova Scotia Utility and Review Board 1601 Lower Water Street, 3rd Floor P.O. Box 1692, Unit "M" Halifax, NS B3J 3S3 Re: M11307 - Evergreen IRP Updated Action Plan and Ro...

AI summary Nova Scotia Power Inc. (NS Power) submitted an updated Evergreen Integrated Resource Plan (IRP) to the Nova Scotia Utility and Review Board (NSUARB) following a May 2024 directive. The update included stakeholder engagement via a webinar on the Reliability Tie project and Demand Response programming, with additional updates later reflected in the Path to 2030 report submitted with the 2025 ACE Plan.

Plan on December 9, 2024. As directed by the Board in its Decision letter, and subsequently in its Decision regarding the 2024 10-Year System Outlook report of January 16, 2025 (M11764), NS Power has 1 NSUARB Letter, Re: M11307 - Evergreen...

AI summary NS Power intends to submit an updated 2025 Integrated Resource Plan (IRP) Action Plan by April 30, 2025, following the NSUARB's directive in Decision M11764 regarding the 2024 10-Year System Outlook report. The update aims to provide stakeholder transparency on progress since The Path to 2030 report.

Area of Focus 6.0 – Review of System Planning Related Values - (6.1) review of system planning related values as applicable to TVP (and the technologies that deliver the load shifting such as batteries) including avoided costs and Effectiv...

AI summary The document discusses the review of system planning values for TVP and load-shifting technologies like batteries, emphasizing avoided costs and ELCC. It highlights the importance of Summer-specific reliability assessments by NPCC and NERC for NS Power's contributions. NS Power seeks stakeholder feedback on its ELCC study scope by February 21, 2025.