N-9-(i)Appendices A-N
76 passages
Distributed Resources 3.2C Accelerated Net Zero 2045 High Electrification / Max DSM Regional Integration Table 7 – Preliminary Scenario and Resource Strategy Combinations Additionally, several potential sensitivities to be tested on key po...
AI summary The text discusses the impact of electrification, demand-side management (DSM), and distributed energy resources (DER) on customer rates through a model analyzing changes in cost and load. It suggests that higher electrification could lower unit costs to serve customers by increasing revenue from additional sales, despite higher load.
• Develop an opening bundled service rate for comparison purposes; and • Recognize the additional fixed cost contribution provided by additional sales from higher levels of electrification. • The Company has taken the following approach: •...
AI summary The Company is developing an opening bundled service rate by incorporating forward-looking supply-side and demand-side revenue requirements from the Integrated Resource Plan (IRP) and adding fixed costs from the 2014 Test Year. Additional fixed cost recovery from increased electrification sales is calculated using an FCR/MWh factor, and annual rate changes are determined based on the net revenue requirement and total sales.
Annual rate changes are calculated as the change in the rate year-over-year. A simple (i.e. non cumulative) average rate change is created by averaging rate changes over the analysis period. • The analysis employs a number of simplifying a...
AI summary The document discusses the methodology for calculating annual rate changes, including simplifying assumptions such as uniform FCR distribution and proportional load changes from electrification. It also mentions updates to model inputs and parameters, including the assumption of $0/MWh additional FCR and the use of a 'system average' rate estimate.
eves NSPI has not fully incorporated our request to study alternative, lower costs of capital and if the use of such enables Nova Scotia to decarbonize quicker than using NSPI’s ownership assumptions. Paul Chernick, President of Resource I...
AI summary The document discusses concerns regarding NSPI's approach to incorporating alternative, lower costs of capital and its impact on decarbonization. It also highlights issues with the inequitable treatment of renewable generation's ELCC and suggests financial benefits for ratepayers through the sale of surplus environmental attributes to other sectors.
NSPI system is measured by the marginal ELCC and is currently at 11%, meaning that each additional MW of wind contributes 0.11 MW of firm capacity to PRM requirements. In its recent 2020 Annually Adjusted Rates Application filed with the N...
AI summary The NSPI system's marginal ELCC is currently at 11%, indicating that each additional MW of wind contributes 0.11 MW of firm capacity to PRM requirements. NS Power proposed using a 32% capacity contribution factor for wind generation in 2020, based on past approvals, but has since revised its methodology to a 17% factor for existing wind resources. A pre-IRP study on ELCC calculations will influence future capacity contribution factors for billing purposes.
IRP process is completed, NS Power will revisit justification for the continued applicability of the 32 percent capacity contribution factor for BUTU billing purposes.” We wish to specifically note that the 2020 IRP process is not the appr...
AI summary The document discusses the inappropriateness of using the Integrated Resource Plan (IRP) process to determine the capacity contribution factor for the Back-Up/Top-Up (BUTU) Tariff. It emphasizes that the IRP is a generic planning tool and not a rate design process. The BUTU Tariff is tied to specific non-Nova Scotia Power generation facilities and should be addressed separately.
would like to better understand these assumptions or see them aligned with other sources. 8 National Renewable Energy Laboratory, Annual Technology Baseline: Electricity, Natural Gas Plants (2019). John D. Wilson and Paul Chernick • Resour...
AI summary The text discusses the inclusion of distributed energy resources (DERs) in modeling, emphasizing the need to account for both full costs and non-energy benefits such as reduced line losses and backup service, or alternatively, just the costs paid by NS Power reduced by T&D benefits if non-energy benefits cannot be estimated.
nvenience charging, because no provincial or utility first line of Table 2. policy exists to motivate any other behavior. 3. Analytical methods 3.2.2. Scenario: Time of day charging Nova Scotia has in place a ‘‘time of day” (TOD) residenti...
AI summary The text discusses the analysis of electricity consumption patterns related to electric vehicles (EVs) in Digby, Nova Scotia, and the impact of a 'time of day' (TOD) residential electricity tariff. It assumes a 10% adoption rate for EVs and examines how EV drivers may respond to the TOD tariff by delaying charging until after 23 h.
Nova Scotia Power TOD Rates in electricity markets. In Digby, the constraint of interest is power Workdays Dec 1 - Feb 28 export on transmission line L-5533 (see Fig. 1). When the WEC field is at maximum generating capacity (30 MW), and th...
AI summary The text discusses Nova Scotia Power's Time of Day (TOD) rates and how real-time monitoring and signaling on a transmission line could be used to manage EV charging, particularly during low load periods to avoid export limitations.
1 As of February 2019, NS Power has been aware of an error in the avoided T&D calculations it had 2 been providing to EfficiencyOne and the DSMAG since 2016, which appears to result in the 3 avoided costs being understated by a factor of 3...
AI summary NS Power has been aware of a significant error in avoided T&D cost calculations provided to EfficiencyOne and the DSMAG since 2016, which may have understated costs by a factor of 30 to 100. EfficiencyOne highlights the potential impact on the 2020 IRP process if this issue is not addressed, as it could lead to sub-optimal DSM selections.
e sensitivity 25 the DSM Potential Study has to predicted temporal conditions. For example, building stock 26 forecasts that drive participation (in part), are based on temporally sensitive Statistics Canada data 27 that varies by year. 28...
AI summary The DSM Potential Study relies on temporally sensitive Statistics Canada data for building stock forecasts, which influence participation rates. This data varies by year and impacts the accuracy of predictions in the 2019 Rate and Bill Impact Analysis and Model.
d consider the development of an approach 26 and alternate methodology than currently exists for the calculation. This process will occur in 27 parallel with the IRP and will conclude during the course of the IRP. EfficiencyOne appreciates...
AI summary EfficiencyOne comments on Nova Scotia Power's 2020 Integrated Resource Plan (IRP), emphasizing the need for an improved methodology to calculate avoided transmission and distribution costs. They note that these costs will not be included in the IRP model and stress the importance of accurate avoided cost assessments for planning decisions.
. There needs to be specificity as to how the revenue requirements will be determined for fillllual expenditures, ie multi-year amortiz.ation. A question that then arises is whether it is a variable. The SBA believes that the incorporation...
AI summary The SBA raises concerns about the revenue requirements for multi-year amortization and the exclusion of distributed generation in the IRP. They emphasize the need for further discussion on DSM and DER integration, as well as the modeling of customer economics and solar policies.
istributed Resources scenario will provide (Distributed because won’t be selected by model due to cost is a information as to the potential impacts of these Energy shortcoming. Needs to be recognition of existence of technologies will have...
AI summary The text discusses the integration of distributed energy resources (DER) in Nova Scotia Power's Integrated Resource Plan (IRP), including the need to evaluate BTM thermal energy storage, the economic signals influencing customer adoption of DER, and the impact of DER on peak energy requirements. It also highlights the cost competitiveness of energy thermal storage (ETS) and the importance of testing solar ratemaking and net metering policies.
Category Participant Comment NSP Response 1.2 Analysis Plan CA - Resource Insight Revise to bill effects metric (customers more NS Power will use the 10-year NPV Evaluation Criteria concerned about bills than rates): evaluation criteria as...
AI summary The document discusses revisions to evaluation criteria for resource planning, emphasizing the importance of billing effects over rate effects and ensuring that reliability requirements are met. NS Power agrees to use a 10-year NPV evaluation method and will not consider plans that fail to meet reliability standards.
SENSITIVITY ANALYSIS Increase in Low capital Renewable Energy cost of Standard policy wind Low capital Low pricing of import cost of energy storage High High pricing of pricing of natural gas import energy Carbon Fuel security tax/pricing...
AI summary The document outlines a sensitivity analysis focusing on renewable energy standards, capital costs, and pricing of imported energy, as well as carbon tax and fuel security. It also proposes evaluation criteria for an integrated resource plan, emphasizing the minimization of revenue requirements and rate impacts over a 25-year period.
would likely be very little on-peak generation during a winter peak event, especially if rate design is updated to utilize the smart meters NS Power is installing. Based on an email exchange with Chris Milligan following up on the April 8...
AI summary The text discusses NS Power's use of a 2015 NYSERDA report for EV load assumptions, questioning the accuracy of applying the study to NS Power's load forecast. Concerns are raised about the mismatch between NYSERDA data and NS Power's assumptions, particularly regarding on-peak and off-peak load figures, and the lack of clear explanation for how EV charging profiles are mapped to the baseline forecast.
tween options. If the variation in end effects among cases appears to be correct, but the magnitude is overstated, NS Power should consider shifting to a shorter end effect period (e.g., 10 or 15 years), or eliminating it altogether. Distr...
AI summary The text discusses concerns about the end effect period in NS Power's modeling and the exclusion of distributed energy resource (DER) costs in specific cases. It suggests shortening the end effect period or eliminating it and highlights the need to account for bottom-of-the-meter (BTM) costs associated with DERs, which are not captured in the NPVRR calculation.
incorporate some BTM costs into its reported cost metric, we suggest using a modest placeholder value. If Plexos produces marginal hourly energy costs, those could be used for the assumed DER load shape. Otherwise, NS Power might use some...
AI summary The text discusses the challenges of incorporating bottom-of-the-meter (BTM) costs, the limitations of using NPVRR and partial generation cost metrics for comparing energy plans, and the need for a more meaningful bill metric. It also highlights the importance of considering T&D cost sensitivities and the need for more detailed computation methods for capital investments in the long-term Plexos model.
Those BTM costs do not fit neatly into the NPVRR calculation, since they do not represent utility revenue requirements. Nor should the full cost of DERs comparable to the utility costs, since DERs (especially paired solar and storage) prov...
AI summary The text discusses challenges in comparing different energy plans due to divergent load forecasts and the limitations of the NPVRR metric in reflecting benefits from electrification and demand-side management. It also mentions the difficulty in incorporating BTM costs into NPVRR calculations and suggests using placeholder values or marginal energy costs for estimation.
July 2020 Category Comment # Comment NS Power Response T&D CA-05 NS Power staff explained that the projection of revenue The Avoided T&D cost estimates, being developed requirements excludes T&D costs, which would be affected in parallel t...
AI summary The document includes comments from the Consumer Advocate regarding the exclusion of T&D costs in revenue requirement projections and requests for more detail on how revenue requirements for supply-side options are computed in the long-term Plexos model. NS Power responds by noting that Avoided T&D cost estimates are being developed in parallel with the IRP.
Basic information has been provided relating to the Inclusion of DER scenarios was determined through envisioned costs for renewable DERs - described as consultation with stakeholders on the Analysis Plan "$1.6-2.5B" on an NPV basis. These...
AI summary The document discusses the inclusion of DER scenarios in the Integrated Resource Plan (IRP), noting that envisioned costs for renewable DERs are $1.6-2.5B on an NPV basis but have not been directly included in any modelling scenario. Current solar PV programs do not leverage ratepayer investment, and DER investment costs are outside the utility model for IRP analysis.
Demand E1-05 6. Allow the introduction of Demand Response (DR) in 2021, In the Final Portfolio Study NS Power offered the Response 2025, 2030, and 2035. This would provide a better balance DR resources in 2021/2025/2030. In all scenarios,...
AI summary The text discusses the introduction of Demand Response (DR) in Nova Scotia for 2021, 2025, 2030, and 2035, aiming to improve balance and consistency in model runs and better estimate DR value. It also requests clarification on how DR was modeled, including assumptions about capacity and the DR profile provided by Efficiency One.
Distributed Quest-01 DERs are considered a reduction in system demand without The NEM arrangement allows customers to offset Resources a cost to the system. How does this assumption fit within the their consumption with the production from...
AI summary The text discusses the consideration of distributed energy resources (DERs) as a reduction in system demand and questions how this assumption aligns with Enhanced Net-metering requirements. It also mentions NS Power's exploration of DERs through the NS Smart Grid project and the potential benefits of resiliency and reliability from DERs.
d going forward. The Company should provide metrics to help provide insight on affordability of each portfolio, perhaps showing annual cost of electricity impacts utilizing nominal capital cost carrying charges. Generally, the more capital...
AI summary The document discusses the need for NS Power to provide metrics on the affordability of its portfolio and the reliance on imported power. It emphasizes the importance of transparency regarding capital investment requirements and long-term electricity costs.
its 4 & 5 7. Complete sustaining capital profile review based on observed unit utilization 8. Input two sustaining capital cost profiles for coal units – aligned with 2030 and 2040 retirement dates I R P D R A F T F I N D I N G S , R O A D...
AI summary Nova Scotia Power has developed a simplified rate impact model based on the optimized Integrated Resource Plan (IRP) resource plans, considering inputs like partial revenue requirements, load forecasts, and assumptions about marginal contributions of load changes. The model is illustrative and approximate, with actual rates expected to differ due to various factors.
18 Nova Scotia Power IRP Final Report Appendix K Page 86 of 264 N PV PA RT I A L R E V E N U E R EQ U I R E M E N T CO M PA R I S O N Low Electrification Mid Electrification High Electrification Low Electrification Mid Electrification High...
AI summary The document compares revenue requirements and rate impacts across different electrification scenarios. Higher electrification with DSM investments reduces customer rates over time, while significant DER penetration increases rate pressure. Coal closures in 2030 and 2040 have similar long-term impacts, but the 2030 closure creates additional pressure in the 2030s without mitigation.
wing this issue in the IRP and using that as an input into its submission for capital investment at Mersey. It is appropriate that there be a thoughtful discussion of the findings so that it is clear what evidence may be drawn from the IRP...
AI summary The document discusses the Integrated Resource Plan (IRP) and its implications for capital investment at Mersey. It highlights the need for a thorough discussion of the hydro system value and the retirement analysis of Mersey, including post-2045 costs and risks. Additionally, it critiques the rate impact model for incorrectly removing incremental fixed cost recovery, which may exaggerate rate impacts.
Nova Scotia Power IRP Final Report Appendix K Page 182 of 264 Comments on latest IRP materials Page 9 of 13 These charts demonstrate that NSP’s rate impact model exaggerated the overall trend in rate increases and also exaggerated the diff...
AI summary The document critiques Nova Scotia Power's rate impact model, stating that it overestimates the overall trend in rate increases and the differences between model scenarios. The analysis is provided by John D. Wilson and Paul Chernick of Resource Insight, Inc.
higher levels of electrification studied in the IRP, but that such programs have not yet been studied or costs developed. RII recommends that NS Power include in its action plan an “order of magnitude” estimate for the level of cost that m...
AI summary RII recommends that NS Power include an estimate of the cost customers might bear to promote electrification in its action plan. While increased electricity sales from electrification can reduce upward pressure on rates and help with carbon reductions, determining the exact investment needed to avoid rate increases is uncertain. Benefits beyond rate impacts, such as cost savings and carbon reduction, should also be considered.
limits), or higher demand growth/electrification (potentially resulting in breaches of emissions limits). It is recommended that this type of analysis is considered further. [Refer section 4] • NSP’s continued adherence to allowing further...
AI summary The text criticizes NSP for its approach to integrating wind capacity with capital-intensive batteries and synch comps, suggesting it leads to higher costs for consumers. It recommends considering alternative analyses and adopting best practices used in other systems with high levels of intermittent renewable generation.
integration will require careful and strategic consideration and coordination with other jurisdictions in the region to ensure Nova Scotia stakeholders receive the intended benefits. 3. Rate Impacts In its Updated Modeling Results and Draf...
AI summary The document discusses the importance of rate impacts and electrification scenarios in Nova Scotia’s long-term planning. It highlights the need for stable and predictable electricity rates, especially for industrial customers. NS Power’s new demand response service and the continued need for firm capacity resources are emphasized as key factors in achieving an environmentally and economically sustainable electricity future.
ding for several years, it is possible that cost declines for wind capacity or other factors could advance the timeline for wind development, hastening the need for a solution to the reliability need. DAYMARK ENERGY ADVISORS 370 MAIN STREE...
AI summary The text discusses the need for coordination with New Brunswick for the Reliability Tie and Regional Integration as part of Nova Scotia Power's Integrated Resource Plan, and highlights the importance of a clear interpretation of rate impact analysis under high electrification scenarios.
particularly related to the rate impact under high electrification scenarios. This slide was accompanied with important discussion during the stakeholder session which provided context on rate trends. We recommend that NSP provide sufficie...
AI summary The text discusses the need for NSP to provide context in the Integrated Resource Plan (IRP) regarding the rate impact of electrification scenarios and the importance of a data collection program on electrification. It also highlights the need for a more thorough examination of the potential and cost of Demand Response resources beyond the 75 MW target.
Two sensitivities were added examining high and low sustaining capital costs for existing thermal units, and a third was completed which examined a high cost sensitivity on pricing for Natural Gas and Import prices, since those resources w...
AI summary The text discusses the addition of sensitivities examining capital costs for thermal units and natural gas pricing in the context of the Integrated Resource Plan (IRP). It also addresses a question regarding the difference between the 'relative rate impact comparison' slide and individual model run results, and mentions PLEXOS co-optimizing energy dispatch and ancillary services.
(18) RII recommends that the findings include an explicit discussion of the hydro system NS Power will consider the suggested potential changes to replacement energy cost calculations after the value and the retirement analysis of Mersey i...
AI summary RII recommends that the findings include a discussion of the hydro system's value and the retirement analysis of Mersey, particularly post-2045 costs and risks. NS Power will consider changes to replacement energy cost calculations after the IRP. There is a discussion on rate impact models and average rate calculations.
Rate effects E1 (7) The rate effect metrics (10-year NPVRR and estimated rates) will not contribute to Per the Terms of Reference, minimization of Net Present Value (NPV) is the primarily metric for achieving the general purpose of the IRP...
AI summary The document discusses the rate effect metrics used in the Integrated Resource Plan (IRP) process, emphasizing that the Net Present Value (NPV) of Resource Replacement (NPVRR) and estimated rates should not be the primary metric for evaluating future plans. Instead, the focus should be on minimizing NPV, with other metrics like the magnitude and timing of electricity rate effects being of increasing importance. The Rate Impact model is presented as a simplified tool to illustrate rate pressure when comparing plans.
Further, the IRP provides the only opportunity for analysis of the long-term revenue requirement associated with the NS electricity system. This long-term view is critical in determining the lowest cost electricity system into the future,...
AI summary The Integrated Resource Plan (IRP) is crucial for analyzing the long-term revenue requirements of Nova Scotia's electricity system and determining the lowest cost electricity system. The UARB emphasized the importance of the IRP in utilizing both supply-side and demand-side resources to reliably serve Nova Scotia's electrical needs at the lowest long-term cost to ratepayers.
Nova Scotia Power IRP Final Report Appendix K Page 251 of 264 According to the Rate impact Comparison (Select Scenarios), it is shown that High Electrification scenarios 2.2 C and 2.2 C S1 achieve lower rates as compared to select Low and...
AI summary The document discusses the rate impact of electrification scenarios, showing lower rates in high electrification scenarios. It also highlights the need for decommissioning Trenton 5 and preparing for the retirement of coal units, including regulatory approval processes.
Preserving such flexibility will also enable NS Power to consider any subsequent changes in technology and/or government policy, as well as the results of ongoing costing analysis of generation and transmission options. These items will im...
AI summary The text discusses the importance of flexibility in NS Power's long-term planning, considering technological and policy changes, as well as the impact of electrification on future rates. It highlights the use of IRP partial revenue requirements to model rate impacts and the value of comparing different electrification scenarios.
with a new demand response service that allows the utility to better operate its electricity NS Power also agrees that the IRP has shown that DR resources, as modeled in the IRP, have economic system for the benefit of all customers. The 2...
AI summary The text discusses the importance of demand response (DR) resources in Nova Scotia Power's Integrated Resource Plan (IRP), emphasizing their economic value and the need for continued collaboration. It also highlights the need for NS Power to better support findings in the IRP with specific modeling references. The text mentions the ongoing work related to system inertia and wind stability.
P’s plan for a reliable and economic supply portfolio, the Company should emissions intensity, and dispatch flexibility). prepare a specific timeline and plan for the steps required in Action Plan Item #1 to ensure that this is a feasible...
AI summary The document discusses the need for a specific timeline and plan to ensure the feasibility of delivering benefits assumed in the Integrated Resource Plan (IRP). It also highlights the value of the rate impact model developed by NSP to assess the implications of various supply portfolios for customers, particularly under high electrification scenarios.
ic implications NS Power Acknowledges these points. Wolfville associated with high levels of Distributed Energy Resource (DER) adoption. By 2040, the Policy models suggest that high DER uptake could increase electricity costs by 10%, or 2...
AI summary NS Power acknowledges concerns about the potential increase in electricity costs due to high DER adoption by 2040, which could rise by 10%. The current rate design creates a cross-subsidy between self-generating and non-self-generating customers, and revisions to rate structures may be necessary to address this and improve price signals for self-generation.
it to development of T&D cost forecasts for several of the different scenarios involving electrification and DSM at varying levels. This will be necessary to inform those program investment decisions. Status of Board Requirements Optimal p...
AI summary The document discusses the development of T&D cost forecasts for various electrification and DSM scenarios, and NS Power's position on the optimal planning reserve margin, referencing an audit recommendation and the E3 study from 2019.
pressure on rates that may be created by differing levels of electrification. The model presented in the Draft IRP Report may exaggerate the rate impacts overall, and the differences among the cases. John D. Wilson and Paul Chernick • Reso...
AI summary The comment highlights an issue with the rate impact model in NS Power's Draft IRP Report, specifically the incorrect deduction of incremental fixed cost recovery from the revenue requirement, leading to potentially misleading rate estimates. The commenter recommends correcting this in the model and throughout the report.
on of the model, and is illustrated below. RII recommends that NS Power revise the rate impact model and correct its application throughout the Draft IRP Report and in its modeling results slide deck. Treatment of existing non-fuel revenue...
AI summary RII recommends that NS Power revise its rate impact model and correct its application in the Draft IRP Report and modeling results. RII questions the assumption that non-modeled costs remain consistent during the planning horizon and argues that a more complex model is needed to distinguish rate impacts by customer class.
and documents. RII does not agree that this adjustment accomplishes the stated goal. A significantly more complex model would be required to appropriately distinguish rate impacts by customer class. John D. Wilson and Paul Chernick • Resou...
AI summary Resource Insight, Inc. disagrees with the adjustment proposed by NSP, arguing that a more complex model is needed to distinguish rate impacts by customer class. They also recommend including a sensitivity analysis to account for uncertainty in NSP’s rate impact forecast.
s remains an increasing revenue requirement under every scenario. The suggested, or some similar sensitivity analysis, will provide an indication of the uncertainty in NS Power’s rate impact forecast. Revised rate impact model findings Bel...
AI summary The analysis indicates that NS Power's rate impact model overstates the rate increase trends and differences between scenarios. It also highlights an error in the model's calculation of fixed cost recovery and system rate, which undermines the support for the Low DSM investment level in the Draft IRP Report.
2. Enables better grid management; and 3. Reduces negative environmental impacts. As well, RAP’s four key principles for maximizing electrification benefits should be followed. 3. EfficiencyOne is well-positioned to administer initiatives...
AI summary The document outlines the benefits of electrification, the role of EfficiencyOne in administering electrification initiatives, the importance of consistency in IRP secondary metrics, and the economic benefits of DSM energy efficiency programs. It also emphasizes the need for stakeholder-driven processes and the use of RAP principles.
Risk Analysis 12. Create and include a roadmap item to carefully monitor and estimate the expected capital costs, inclusive of transmission, distribution, energy and capacity, and reliability upgrades associated with a regional interconnec...
AI summary The text discusses risk analysis related to capital costs for a regional interconnection strategy, the inclusion of DSM in the IRP, and the need for an 'evergreen' IRP process with three-year updates. It also mentions the need for clarity in statements about emissions reductions and the use of the term 'cost-effective'.
Demand Response Strategy targeting 75 MW of capacity, for deployment by 2025. Available resource cost, flexibility, and reliability may inform pursuit of additional Demand Response capability.11 We agree with this recommendation in the Act...
AI summary The document outlines a Demand Response Strategy targeting 75 MW of capacity by 2025, emphasizing its cost-effectiveness and flexibility. EfficiencyOne is recommended to administer demand response programs, and the strategy development is to proceed through the DSMAG. The Integrated Resource Plan (IRP) uses a least-cost, least-risk portfolio approach as its primary evaluation criterion.
2. The inability to assess the weighting relationship between the primary objective of developing a plan that seeks to minimize the cumulative present value of the annual revenue requirements over the 25-year planning horizon (adjusted for...
AI summary The text discusses challenges in the Integrated Resource Plan (IRP) process, particularly the lack of clarity in evaluating secondary metrics such as GHG emissions and rates. It highlights concerns about the methodology used for rate analysis and suggests minimizing objective decision-making based on secondary metrics to ensure a focus on the lowest-cost path for the electricity system.
s analysis are presented on pages 112 and 113 of the draft IRP report, while the methodology is presented on pages 98 and 99. There are issues associated with the use of rate effects, which are specific examples of the general issues descr...
AI summary The document discusses concerns with the use of rate effects in the Integrated Resource Plan (IRP) context, highlighting issues such as the methodology being overly simplistic and applied unevenly. It also raises concerns about the potential prejudice to other rate-making exercises and the inappropriateness of discussing affordability in the IRP rather than in DSM planning.
en description of the methodology for its rate analysis as part of the final report was provided, as well as results and analysis. The methodology documented in the Draft Report has a number of flaws: - Its treatment of fixed costs differs...
AI summary The text critiques the methodology used in the Draft Report for rate analysis, pointing out several flaws, including inconsistent treatment of fixed costs, incorrect assumptions about cost recovery, and failure to consider transmission and distribution avoided costs. It also highlights that the Rate and Bill Impact Analysis (RBIA), developed through stakeholder consensus, has been used and refined since 2013.
ell considered by stakeholders. The Application of Rate Effects Despite rate effects forming a secondary evaluation metric in the whole of the IRP, the Draft Report has used of the metric to: 1. Demonstrate that increasing levels of electr...
AI summary The text critiques the use of rate effects as a secondary evaluation metric in the Integrated Resource Plan (IRP), arguing that it has been used inconsistently, particularly in relation to electrification and demand-side management (DSM). It highlights concerns about the lack of exploration of various factors affecting rate trajectories and calls for revisions to the Action Plan.
3 POTENTIAL CAUSES OF OVERFORECASTING To be clear, the pattern of overcasting is not unique to BC Hydro. Our research reveals that other utilities and system operators also persistently and substantially overestimate long-term requirements...
AI summary The text discusses the issue of overforecasting in long-term energy planning, noting that it is not unique to BC Hydro. It highlights risk asymmetry bias, where reliability has historically taken precedence over cost-effectiveness and environmental concerns. With changing market conditions, overforecasting now leads to unnecessary investments and rate increases, impacting the low-carbon electrification transition.
6. What would the impact on electricity demand be if the thermal and electrical energy demand of the existing building stock was reduced by 50% rather than by the levels assumed in the E3 scenario analysis? 7. If greater building efficienc...
AI summary The text presents a series of questions regarding the impact of energy efficiency and electrification on electricity demand, building energy expenditures, residential heating systems, and housing stock characteristics. It also inquires about scenarios involving accelerated efficiency and electrification, and the consistency of minimizing electricity rates with total energy service costs.
ower has committed to an evergreen process and Electricity), the scale, and implications for appreciates the feedback. integration of other renewables; • New assumptions on the cost and value of renewable energy resources, including onshor...
AI summary The document outlines various assumptions and findings related to renewable energy integration, including the cost and value of onshore and offshore wind, solar PV, and energy storage, as well as initial outcomes from the NS Power Smart Grid project and the value of Time Varying Pricing.
We suggest that this is a significant finding which should be included in the “Key Findings” of the study. Wind Capacity Natural Forces One can identify two broad “clusters” of scenarios, NS Power agrees that the size and pace of wind buil...
AI summary The text discusses two clusters of wind capacity build-out scenarios, with NS Power agreeing that the pace and scale of wind installations depend on capital costs, integration assumptions, and demand levels. NS Power has committed to further studies to determine the optimal cluster for minimizing costs for ratepayers.
RAP’s four key principles for maximizing electrification benefits should be followed Efficiency One E1 are positioned to administer electrification The development and administration of future Item 3 -6 initiatives electrification programs...
AI summary The document discusses Efficiency One's role in administering electrification initiatives and Demand Response programs. It highlights NS Power's agreement on the economic viability of Demand Response and the need for a stakeholder-driven electrification strategy. It also mentions the use of consistent metrics in the IRP process.
P a g e 42 45 Nova Scotia Power IRP Final Report Appendix L Page 123 of 125 Category Participant Comment NS Power Response stakeholder engagement has improved the overall process. NS Power agrees with the modifications to Action Plan Item...
AI summary Efficiency One comments that affordability discussions should remain within DSM planning and criticizes the rate impacts methodology as flawed. NS Power agrees with modifications to Action Plan Item 2e and updated the Final Report accordingly, stating that affordability is a criteria for evaluating DSM procurement.
Town of See comment on overall Finding 1. Wolfville 1b. Increased electricity sales due to electrification AREA No comment n/a can help to reduce upward pressure on electricity CA Supportive but with recommendations for 2 adjustments to 20...
AI summary The text discusses the impact of increased electricity sales due to electrification on electricity rates and carbon reduction. It highlights the importance of managing peak demand and energy requirements, and supports Nova Scotia Power's approach to rate impacts in the IRP while suggesting adjustments to the calculation of fixed cost recovery.
FINDING STAKEHOLDER STAKEHOLDER COMMENT REFERENCE impact forecasts in other venues. Nonetheless, RII inclusion with the Final recommends that NS Power make two changes to its rate Report. impact model. RII understands that the purpose of t...
AI summary RII recommends that NS Power make changes to its rate impact model, suggesting that the model may exaggerate rate impacts from electrification. Other stakeholders provided no comment on the finding.
JFS Hydrostor No comment n/a Natural See comments on overall Finding 1. Forces PHP Supportive of use of rate impact analysis: 2020-09-18; p.2/2 ‘In its Updated Modeling Results and Draft Findings, NS Power developed a rate impact calculati...
AI summary The document discusses feedback from various stakeholders on NS Power's rate impact analysis and long-term strategy. PHP and SBA support the use of rate impact models to assess the implications of different energy portfolios, emphasizing the importance of rate stability for industrial customers.
3/3 -‘We appreciate NSP developing the rate impact model to help assess the implications of various portfolios Page 7 of 43 Nova Scotia Power IRP Final Report Appendix M Page 8 of 43 Nova Scotia Power IRP Summary of Stakeholder Comments sp...
AI summary The text acknowledges the development of a rate impact model by NSP to assess the implications of various portfolios, as part of the IRP Final Report and stakeholder comments on findings, action plan, and roadmap.
FINDING STAKEHOLDER STAKEHOLDER COMMENT REFERENCE for customers (Slide 31). We believe this provides important information in the consideration of various strategies. The summary of results provided in the draft Findings presentation (Slid...
AI summary The stakeholder provides feedback on the draft Findings presentation, emphasizing the importance of communicating the implications of rate impact analysis on customers, particularly regarding Finding 1b, which discusses the effect of increased electricity sales due to electrification on electricity rates and carbon reductions.
FINDING STAKEHOLDER STAKEHOLDER COMMENT REFERENCE PHP No comments n/a SBA No comments n/a Town of No comments n/a Wolfville 3b Nova Scotia Power’s existing combustion AREA No comments n/a turbine resources provide economic benefit to CA Su...
AI summary Nova Scotia Power's combustion turbine resources are deemed economically beneficial and sustainable through the planning horizon with current levels of capital investment. The Electric Resource Assessment Model (RII) recommends further evidence in the FAM audit proceeding regarding the performance of these resources.
FINDING STAKEHOLDER STAKEHOLDER COMMENT REFERENCE Halifax No comments n/a Regional Municipality Hendricks No comments n/a Heritage Supportive with ongoing monitoring: 2020-11-13; p. 5/5 -‘With respect to the existing CTs, NSPI has stated t...
AI summary Heritage Gas supports ongoing monitoring of the existing LFO-fired CTs due to concerns about their reliability and the inconclusive data on the impact of sustaining capital investments. This is based on an audit report that highlighted potential issues with the units.
FINDING STAKEHOLDER STAKEHOLDER COMMENT REFERENCE resource cost, flexibility, and reliability may inform pursuit of additional Demand Response capability. We agree with this recommendation in the Action Plan in principle, in that near-term...
AI summary The stakeholder comments discuss the potential of Demand Response (DR) to provide cost savings compared to other short-term peaking resources. The Board's approval of NS Power's Extra Large Industrial Active Demand Control Tariff is highlighted as an innovative rate structure.
Control Tariff. This innovative rate structure, developed following extensive collaboration with the utility, provides NS Power with a new demand response service that allows the utility to better operate its electricity system for the ben...
AI summary The document discusses the Control Tariff, an innovative rate structure developed with NS Power to enhance demand response services. The 2020 Integrated Resource Plan (IRP) highlights the continued importance of firm capacity resources for NS Power's system, underscoring the value of demand response approaches.
cost that might be tolerable for its customers to bear to promote electrification. As noted in the draft findings, “Increased electricity sales due to electrification can help to reduce upward pressure on electricity rates while facilitati...
AI summary The text discusses the potential cost of promoting electrification and its impact on electricity rates, noting that increased electricity sales can help reduce upward pressure on rates while supporting carbon reductions. The design and costing of programs related to electrification are outside the scope of the Integrated Resource Plan (IRP).
ACTION PLAN ITEM STAKEHOLDER STAKEHOLDER COMMENT REFERENCE below) to identify the impacts on rates that might result from plausible levels of program investment in electrification. Given the diversity of the possible futures, RII recognize...
AI summary The stakeholder suggests that the Board should consider the impacts of program investment in electrification on rates and encourages the consideration of benefits such as cost savings and carbon reduction. An estimate of the annual investment causing upward pressure on rates is requested.
whole can be captured in a total resource cost test. While this is clearly beyond the scope of the IRP, we encourage NS Power to acknowledge – perhaps with an illustrative graph – that these benefits exist, to avoid creating the impression...
AI summary The text discusses the importance of acknowledging the benefits of electrification beyond rate considerations, suggesting the use of a definition and principles from the Regulatory Assistance Project (RAP). It also mentions the potential role of EfficiencyOne in administering electrification initiatives.
Recommends RPF to determine cost of new wind to system. 2020-11-13; p. 1/8 Work should fully consider alternative operational strategies 2020-11-13; p. 6/8 SBA SBA: Supports 2020-09-18; p. 2/3 4. Create a Demand Response Strategy targeting...
AI summary The text recommends developing a Demand Response Strategy targeting 75 MW of capacity by 2025, linked to the Electrification Strategy. It mentions leveraging existing initiatives like NS Power’s Smart Grid Project, Time Varying Pricing, and the ELIADC tariff. The SBA supports the strategy but suggests further examination of cost potential.
Request / Directive Originator Status NS Power Comments 2018 FAM Audit Recommendation IX-1 Bates White Complete PHP is no longer served on the Load Retention Tariff. Subsequent to this FAM Audit (f) Explicitly address the effect of PHP loa...
AI summary The 2018 FAM Audit Recommendation IX-1 discusses the effect of PHP load on resource planning and tariff structures. NS Power notes that PHP is no longer served under the Load Retention Tariff and is now served under the Extra-Large Industrial Active Demand Control Tariff. PHP is considered a priority interruptible customer and does not contribute to firm capacity requirements.
Request / Directive Originator Status NS Power Comments Recommendation XIV-5: NSPI should perform a standalone Bates White n/a Biomass as a component of the renewable analysis to determine the value of the Biomass Plant to FAM electricity...
AI summary Bates White recommended that NSPI perform an analysis to determine the value of the PH Biomass Plant to FAM customers, considering its operation without PHP load. NSPI accepted the recommendation and planned to incorporate the analysis into the 2019 IRP. The Board later approved the ELIADC tariff, removing PHP’s explicit access to the biomass plant’s generation.