Topic:"Capacity Costs" in M11307

CAPACITY ADDITIONS The optimized capacity additions highlight the transition of the power system to an increased penetration of variable renewable energy, backed by fast acting firm capacity resources (Battery and Combustion Turbine) as th...

AI summary The text discusses capacity additions in Nova Scotia's power system, emphasizing variable renewable energy integration with fast-acting firm resources (batteries, combustion turbines) and low-cost fuel conversions (coal-to-gas/oil). These measures ensure reliability during peak demand and resource unavailability, aligning with sensitivity scenarios and common industry observations.

LOAD AND ENERGY EFFICIENCY Figure 8 highlights the 26-year (NPVRR) with end effects by scenario and provides a comparison between scenarios to assess the impacts of the various load and energy efficiency assumptions modeled. The results de...

AI summary The text compares NPVRR outcomes across load and energy efficiency scenarios, noting Hybrid Peak (E2) cost savings vs. base load (E1), higher NPVs in Base Plus/Modified Mid DSM scenarios, and Accelerated Electrification's faster resource additions. NS Power highlights program cost gaps and system reserve margin considerations.

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.

or a fair comparison of resource investment alternatives that both fit within the IRP's guidelines and access value from advances in technology (and reduction in costs and risks) to benefit customers. Second, use of best practices competit...

AI summary The text argues that NSPI should adopt competitive procurement practices to evaluate resource investments, ensuring cost and risk mitigation while leveraging technological advances. This approach allows fair competition among diverse resource options, enabling optimal decisions for ratepayers. The recommendation builds on prior IRP comments by Bates White, emphasizing flexibility and market-driven solutions.

and lower overall emissions that the without Atlantic Loop scenarios." 17 These "lower system costs" also rely on assumptions about New England market prices that may or may not materialize. Beyond modeling assumptions, the project also fa...

AI summary The Atlantic Loop project faces risks due to reliance on uncertain New England market prices and complex regional consensus requirements. New Brunswick Power's 2023 IRP report highlights increased generation costs from minimum volume requirements, even with federal subsidies. Cross-provincial agreement on cost allocation and technical details remains a major hurdle.

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.

ources to parficipate may require both pre-RFP and pre-cerfificafion hearings, to verify that the evaluafion of all resources properly considered operafing cost risk due to fuel costs and load factor. - Similarly, procurements that allow f...

AI summary The text discusses procurement practices requiring pre-RFP and pre-certification hearings to address fuel cost risks and load factors. It emphasizes regulatory oversight for utility-sponsored projects and varying bid evaluation methods based on RFP complexity, including resource planning software for risk scenarios. Stakeholder consultation is recommended to avoid contentious capital or rate cases.

38 Natural Resources and Renewables Pg. 2 Conversion of Lingan Oil NRR is pleased to see that a low-cost source for capacity has been iden�fied. The addi�on of these conversions will save ratepayers millions of dollars, avoid the construc�...

AI summary Natural Resources and Renewables (NRR) commends the conversion of Lingan Oil units to a low-cost capacity source, noting cost savings and environmental benefits. However, NRR is concerned about the delayed identification of this option and requests a comprehensive analysis from NSP on coal facility conversions and their impact on existing capital. NS Power agrees with the benefits of the conversion and notes that the option was included in the Evergreen IRP process.

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.

Conversion of Lingan to Oil NRR is pleased to see that a low-cost source for capacity has been identified. The addition of these conversions will save ratepayers millions of dollars, avoid the construction of new fossil-fuel units and do s...

AI summary NRR supports converting Lingan to oil as a low-cost capacity solution, saving ratepayers money and avoiding new fossil-fuel units without increasing emissions. However, NRR questions why this option wasn't identified earlier and requests NSP to analyze coal facility conversions and their impact on existing capital, aligning with UARB's decision in M11017.

solar (or to 38 MW, if four-hour storage is paired with 300MW of solar), NS Power is concerned this would potentially amount to "double counting" of wind + storage and solar + storage diversity credits, and may result in "over-crediting" t...

AI summary NS Power expresses concern over potential 'double counting' of diversity credits when pairing four-hour storage with both wind and solar, risking over-crediting. Synapse, E1, and NRR recommend expanding the Capacity Study to assess interactions among solar, wind, battery, and demand response. NS Power plans to investigate but will proceed with adding 300MW of fast-acting generation by 2027, supported by PHP and Eastward Energy, arguing the diversity benefit is insufficient to displace new capacity needs.