N-1IRP Action Plan Update
5 passages
Battery Energy Storage System (BESS) Update Battery storage was evaluated in the 2020 IRP and IRP Finding 3d notes that: Battery storage can enable wind integration while providing firm capacity and energy storage; however, its ability to...
AI summary This document provides an update on Nova Scotia Power's evaluation of battery energy storage systems (BESS) since the 2020 Integrated Resource Plan. It outlines potential benefits of BESS, including supporting wind integration and system reliability, and mentions current feasibility studies for up to 200 MW of deployment. NS Power plans to file a capital item for BESS in 2022.
Combustion Turbine Update - The 2020 IRP found that significant Combustion Turbine (CT) additions were required, including under accelerated coal retirement and more stringent emissions reduction scenarios. - For example, Scenario 3.1C cum...
AI summary The 2020 Integrated Resource Plan (IRP) identified a need for significant Combustion Turbine (CT) additions in Nova Scotia, especially under accelerated coal retirement and stricter emissions scenarios. NS Power is evaluating CT deployment options and locations, considering gas supply and transmission needs, while also exploring alternatives like BESS and coal-to-gas conversions to reduce CT requirements by 2030.
2022 Workplan - Complete the development of robust transmission planning models required for the scope of studies. - Perform studies identified in the Scope of Work. - Develop documentation and guidelines including: - Planning study modell...
AI summary The 2022 Workplan outlines key activities related to transmission planning and system reliability, including the development of models, guidelines for inverter-based control systems, system strength recommendations, and inertia guidelines as traditional generators are phased out.
Renewable and Storage Costs – Capital Costs - NS Power reviewed NREL's Annual Technology Baseline (ATB) forecasts for renewables (onshore wind, solar) and storage (4HR Li-ion) to gauge capital cost changes from the 2020 IRP (ATB 2019 vs AT...
AI summary NS Power reviewed NREL's Annual Technology Baseline (ATB) forecasts for renewable and storage technologies to assess capital cost changes since the 2020 Integrated Resource Plan (IRP). The analysis uses constant 2019 dollars and compares current estimates to those in the 2020 IRP, focusing on material differences.
BESS - ATB 2021 shows moderately lower BESS capital costs, with a moderately slower cost decline trajectory on a 2019 $ basis. - Like wind, the IRP Base/Low estimates encompass the updated forecast/ - As discussed in the Fast-Acting Genera...
AI summary The 2021 Annual Technology Baseline (ATB) indicates moderately lower capital costs for Battery Energy Storage Systems (BESS), with a slower cost decline trajectory compared to 2019. Nova Scotia Power (NSP) is evaluating BESS projects up to 200MW, sourcing updated cost estimates from suppliers as part of the Fast-Acting Generation Strategy update.
N-3IRP Action Plan Update
5 passages
Fast Acting Generation - BESS IRP Action Plan Item 3c A Battery Energy Storage Project (200MW) was included in the 2022 ACE plan for subsequent submittal. Progress on the Battery Storage (200MW) projectincluded: - RFP for equipment supply...
AI summary The 200MW BESS project, initially part of the 2022 ACE plan, has been paused due to Bill 212. Progress included RFP, site selection, and feasibility studies. It's now classified as a transmission asset.
Fast Acting Generation – CT IRP Action Plan Item 3c The 2020 IRP identified that new fast acting generation is required to support coal phase out and thermal unit retirements, integration of variable renewable generation, and load growth d...
AI summary The 2020 Integrated Resource Plan (IRP) identified the need for new fast acting generation to support coal phase out and system reliability with the integration of variable renewable energy. NS Power conducted a survey of available fast acting generation technologies, focusing on peaking power, ancillary services, and hydrogen compatibility.
System Inertia Studies to date find no unusual or unexpected results. Loss of inertia from the retirement of thermal generating units can be replaced with a mix of Synchronous Inertial Response from remaining thermal plants and synchronous...
AI summary Studies on system inertia show that the loss from retiring thermal units can be mitigated through a combination of synchronous condensers, grid-scale batteries, and inverter-based resources. The documentation will provide specific recommendations.
System Strength Analysis and study of the reduction in system strength following the retirement of thermal generating units has highlighted the potential for adverse impact to the grid and the solutions are not as straightforward as for th...
AI summary The analysis highlights the challenges to system strength following the retirement of thermal generating units, emphasizing the need for adequate short circuit ratio, fault current, and system strength across the province. These issues can lead to slow recovery and increased risks of harmonics and sub-synchronous interactions, with synchronous machines being the only reliable resource currently available for system strength support.
Updated Renewables/Storage Cost Trajectories Roadmap Item 5
AI summary This section of the document introduces the 'Updated Renewables/Storage Cost Trajectories' as Roadmap Item 5, indicating a focus on evolving cost trends related to renewable energy and storage solutions.
N-4Evergreen IRP Action Plan & Roadmap Update
4 passages
KEY FINDINGS Based on the common themes observed, the following are the key guiding principles to inform the Action Plan and Roadmap Items: - Variable renewable capacity additions are required to meet the 2030 targets. Up to 1500MW of addi...
AI summary The key findings emphasize the need for 1500MW of additional wind and 200MW of solar capacity by 2030, the critical role of the Reliability Tie and battery storage, the value of the Atlantic Loop for lower costs and emissions, and the importance of emerging technologies like SMRs. NS Power has updated its 2020 IRP Action Plan based on 2023 modeling.
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 expand significantly by 2030, with at least 100MW of 4-hour capacity added in most scenarios. No Atlantic Loop scenarios show higher adoption rates. Storage provides energy arbitrage, curtailment reduction, and wind integration, though voltage/frequency support is not modeled in the IRP.
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 document mandates developing 4-hour battery storage capacity targeting 100MW by 2030, with initial additions by 2025, and continued exploration of additional storage benefits as part of the 2030 transition.
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 calls for monitoring developments in emerging technologies and enabling policies, such as small modular reactors, geothermal, hydrogen combustion turbines, and long-duration storage. It notes that significant changes in cost or availability compared to IRP assumptions may require specific analysis.