Publications

MRP Market Review Week 13: Energy Emergency Notice Issued and Heat Wave Price Spikes

Both the Day-Ahead (DA) and Real-Time (RT) zonal prices increased compared to the previous week. DA zonal prices ranged from $60/MWh (Northwest) to $91/MWh (Ottawa), while RT zonal prices ranged between $14/MWh (Northwest) and $89/MWh (Ottawa). In both the Northeast and Northwest zones, congestion and losses increased in RT as compared to DA.

MRP Week 12 Review: Blocked Dispatches Up in June, Real-time Prices Saw a High of ~$500/MWh Last Week

The IESO has published the Dispatch Deviation Report for June 2025, which indicates the highest number of monthly market interventions by the IESO since March 2022.

Ontario’s Integrated Energy Plan: The Rising Role of Electricity Distributors and Distributed Energy Resources

Ontario’s June 2025 Integrated Energy Plan (IEP) Energy for Generations, builds extensively on the ideas laid out in the government’s 2024 energy policy vision document, Ontario’s Affordable Energy Future: The Pressing Case for More Power.

MRP Review Week 11: A Closer Look at Two-Settlement and Comparing Prices in the Renewed Versus Legacy Market

Power Advisory undertook an analysis to better understand the implications of the new two-settlement system for merchant wind facilities in Ontario.

Ontario’s Integrated Energy Plan: Towards a New Energy and Economic Planning Paradigm

On June 12, 2025 the Government of Ontario published Energy for Generations. The document represents the province’s first steps in initiating a regular five-year cycle of developing comprehensive, co-ordinated, economy-wide integrated energy plans (IEP) that cover electricity, natural gas, hydrogen, biofuels, and emerging fuels.

MRP Week 10 Review: More West Zone Negative Congestion, OZP breaks $200/MWh Three Times

The most notable change in the renewed market last week occurred in the West zone. Last week, the Northwest, Northeast, and West zones experienced the most congestion during the day-ahead timeframe.

MRP Week 9 Review: Data Issues, Blocked Dispatch Since MRP launch and West Zone Negative Congestion

MRP Week 8 Review: Peak Demand, Forecast Errors and Price Spikes

The summer peak demand season has arrived – and peak prices along with it. There were 20 real-time Ontario Zonal Price (OZP) spikes greater than $200/MWh, with the highest price hitting $1,229.23/MWh.

ISO-NE Summary

On June 24th, ISO-New England (ISO-NE) hit a peak load of 26,024 MW at 7pm, the highest load experienced since 2013. With load marginally higher than forecast and a spike in outages (primarily natural gas units), real-time locational marginal prices (LMPs) were over $1,000/MWh, over twice the day-ahead market (DAM) price.

MRP Week 7 Review: West Zone Congestion Goes Negative

The most notable change in the renewed market last week occurred in the West zone. In contrast to most weeks since the renewed market was launched, the West zone experienced high levels of negative congestion in the day-ahead market – even greater than in other typically congested zones such as the Northwest and Northeast.