Constellation Energy Corp
Close on Nov 2, 2026Market cap $91.15BP/E 25.1Yield 0.15%
Constellation Energy Around-the-Clock Spot Electricity Price by Year
Around-the-Clock Spot Electricity Price — ISO-NE Southeast Massachusetts ($/MWh) ($)
Constellation Energy Around-the-Clock Spot Electricity Price: $68.56 in FY2025, up 64.4% from a year earlier.
Where the FY2025 figure comes from
“|| Southeast Massachusetts (Other) (a) | 68.56 | 41.70 | 26.86 | 64.4 | %”
Source: Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗
Reported in Form 8-K Operational Statistics & Form 10-K / 10-Q MD&A.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Around-the-Clock Spot Electricity Price — ISO-NE Southeast Massachusetts ($/MWh) ($) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | 68.56 | +64.4% | Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗ |
| FY2024 | Dec 31, 2024 | 41.70 | +11.6% | Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗ |
| FY2023 | Dec 31, 2023 | 37.35 | -56.6% | Constellation Energy 10-K FY2024 (0001868275-25-000023) ↗ |
| FY2022 | Dec 31, 2022 | 86.02 | +85.5% | Constellation Energy 10-K FY2023 (0001868275-24-000017) ↗ |
| FY2021 | Dec 31, 2021 | 46.38 | +96.8% | Constellation Energy 10-K FY2022 (0001868275-23-000013) ↗ |
| FY2020 | Dec 31, 2020 | 23.57 | – | Constellation Energy 10-K FY2021 (0001193125-22-084880) ↗ |
Cite this data
StockData. (2026). Constellation Energy Around-the-Clock Spot Electricity Price ($), annual FY2020–FY2025 [Data set]. Compiled from Constellation Energy SEC filings and investor materials. https://stockdatahq.com/stocks/ceg/kpis/ref-elec-price-isone-sema-mwh
See every metric in the Constellation Energy KPI table. Data updated Oct 26, 2026.