Monthly ISO-NE report follows trends in energy resource output
ISO-NE’s System and Market Operations Report is a detailed overview of information about the regional power grid.
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resource mix
ISO-NE publishes amounts, sources of electric energy used to meet demand in 2025
Total production for the year was 1% higher than in 2024.
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Resource Mix Graph details region’s energy sources
One piece of the ISO Express data dashboard shows how the makeup of New England’s energy supply changes throughout the day.
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Sunny spring days push grid demand to new lows
“Duck curve” days are happening with increasing frequency and deepening impact as more behind-the-meter solar comes on line.
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Resource Mix charts show sources of grid’s electricity
Here’s a breakdown of one of the most prominent features of the iso-ne.com homepage.
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ISO-NE publishes amounts, sources of electric energy used to meet demand in 2024
Total production for the year amounted to 116,719 gigawatt-hours, 2% higher than in 2023.
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ISO-NE publishes amounts, sources of electric energy used to meet demand in 2023
Output from solar installations increased by 6% from 2022, rising to 3,851 gigawatt-hours.
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Emissions from New England power generation rose in 2021, but levels remained well below historical averages
Carbon dioxide emissions in 2021 were 20% lower than a decade ago.
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- clean energy, environment, resource mix
ISO-NE updating accreditation standards to ensure resource reliability
As the region’s resource mix evolves, so too must the methods by which ISO New England measures capacity contributions.
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- forward capacity market, future grid, resource mix
Solar power reduced New England power grid demand by 3% in 2022
The reduction was equal to the amount of energy consumed by about 430,000 homes in one year.
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- clean energy, resource mix, solar