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ISO-NE administers the region's wholesale electricity markets. But what is the relationship between wholesale costs and retail electric bills? This page breaks it all down. buff.ly/s0jslZL

Winter 2025 was the coldest in a decade, averaging 28°F—six degrees colder than the previous winter. This drove the highest average hourly demand for electricity since winter 2014/2015, according to ISO New England’s Internal Market Monitor. buff.ly/QeaWHWB

🔌⚡ June 15 - #NationalElectricityDay! ⚡🔌 From lighting our homes to powering our industries, electricity is the invisible force behind our modern lives. We're proud to operate the region’s power grid—ensuring reliable energy for 15 million people across New England.

ISO-NE's annual CELT Report is a foundational resource for system planning and reliability studies. This page rounds up everything related to the CELT, including datasets, presentations on long-term forecasts, and articles from ISO Newswire. buff.ly/rA1EhL8

ISO New England is monitoring system conditions as hot, humid weather drives higher consumer demand for electricity in the region. Read the latest: isonewswire.com/2025/06/23/hot… #newengland #weather

ISO New England has issued a precautionary alert due to the possibility of tight operating conditions on Tuesday, June 24. This is not a system emergency. buff.ly/sD4Xb4t

After 25 years, Gordon van Welie will retire as President and CEO of ISO New England. Dr. Vamsi Chadalavada, current COO, has been named as van Welie’s successor. buff.ly/8AermfK

ISO New England has declared a Power Caution for the region due to the unexpected loss of generation. This is not a system emergency. buff.ly/dDELC9V

ISO New England has lifted the Power Caution. A precautionary alert remains in place due to hot, humid weather across the region.

The region has many proposals for new electricity supply resources. Find a state-by-state breakdown in our New England Power Grid State Profiles: buff.ly/bngKLcf

ISO New England has lifted the precautionary abnormal conditions alert. System conditions have returned to normal.

The second Consumer Liaison Group (CLG) meeting of 2025 explored ISO New England governance structures and decision-making processes. You can find a video recording and meeting summary here: buff.ly/CMEj8nm

FERC has accepted ISO-NE’s recently proposed improvements to the economic study process, which establish a clear trigger for certain kinds of transmission upgrades. Learn more: buff.ly/J12RD6F

☀️ Sunny Skies, Lower Demand Nearly half of all days so far this year have seen lower demand for grid electricity during daylight hours rather than overnight—a sign of the increasing impact of behind-the-meter solar power. Read more: buff.ly/PY1I2ka

A recent forum explored grid-enhancing technologies, which may provide alternatives to traditional transmission infrastructure projects. Learn more: buff.ly/wHYU2yX

Our monthly market report breaks down multiple factors affecting wholesale electricity prices, from fuel costs to electricity demand to the resource mix and estimated emissions. Learn more: buff.ly/F7yw1rI

The region’s deepest “duck curve” to date was on April 20, when system demand reached an all-time low. Operations data from that day paint a picture of how behind-the-meter solar affects the resource mix. buff.ly/H2zryA0

During the summer, it's not just people who feel the heat—our grid does too. As temps rise, demand for electricity starts early in the morning and doesn’t let up until well into the evening. See how extreme heat impacts energy generation and demand. buff.ly/uR3iCsY