ISO New England

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ISO New England

ISO-NE's Mission: Through collaboration and innovation, ISO New England plans the transmission system

11/26/2025

On most fall days, electricity demand in New England peaks in the early evening when people are cooking dinner or doing household chores. Thanksgiving throws a twist into this pattern, as Jon Gravelin, manager of control room operations, explains in this ISO Minute.

Learn more: https://bit.ly/48CZL7y

09/18/2025

New England just hit its 100th duck curve day, a clear sign that solar power is reshaping the region’s energy landscape. Since first observed in 2018, instances where midday energy use dips below overnight levels have increased steadily each year.

Learn more: https://ow.ly/e89u50WYZbO

08/19/2025

We are your neighbors—part of your community. We’re the not-for-profit, independent system operator dedicated to keeping your electricity flowing—today, tonight, and tomorrow. Learn more: https://buff.ly/pdWdOWd

07/23/2025

Roughly 9,000 miles’ worth of electric transmission lines crisscross New England. ISO-NE is developing a tool that identifies weather-related risks to the network. Learn more:

ISO-NE's Online Weather Lookahead Study (OWLS) aims to add another layer of reliability to the region’s bulk electric system.

07/17/2025

What goes into wholesale electricity prices? How do markets help ensure the reliable flow of power in New England? Whether you're an expert or new to the industry, this primer offers a plain language overview of the region's electricity markets.

Prepared by the Internal Market Monitor, the document offers a plain language overview of the region's wholesale electricity markets.

07/14/2025

This summer, ISO New England’s system operators are well-prepared to manage unexpected situations and conditions that may affect energy demand or supply. Learn more:

ISO-NE anticipates adequate energy supply to meet demand during a warmer than normal summer.

07/11/2025

Electricity is measured in both capacity and energy—watts and watt-hours. Understanding the difference is critical to understanding how the power grid works. This page can help: https://buff.ly/wB1mR2x

07/07/2025

During the summer, it's not just people who feel the heat—our power grid does too. As temperatures 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 how ISO-NE manages the demand. https://buff.ly/uR3iCsY

06/30/2025

☀️ 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: https://bit.ly/3Iji5YL

06/24/2025

After 25 years of service, Gordon van Welie will retire as President and CEO of ISO New England, effective Jan. 1, 2026. His tenure has been marked by steady leadership through significant changes in the region’s energy landscape.

Congratulations to Dr. Vamsi Chadalavada, current COO, who has been named as van Welie’s successor. With over two decades of experience at ISO New England, Dr. Chadalavada is well-positioned to lead the organization into its next chapter.

This transition comes at a critical time as the region continues to advance toward a sustainable and reliable energy future. https://buff.ly/Eg8rOPd

06/16/2025

🔌⚡ June 15 - National Electricity Day! ⚡🔌

We celebrate the power that keeps New England moving. From lighting our homes to powering our industries, electricity is the invisible force behind our modern lives.

At ISO New England, we’re proud to operate the region’s power grid, administer its wholesale electricity markets, and plan for the future—ensuring reliable energy for 15 million people across six states.

Here’s to the people and the innovation that keep the lights on.

06/12/2025

Everything we do from the time we wake up to the time we go to sleep is dependent on some form of electricity. Today, we celebrate ISO New England's control room operators, reliably managing the power grid that keeps the lights on for over 15 million people in all six New England states.

https://buff.ly/k4SgsdF

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1 Sullivan Road
Holyoke, MA
01040

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https://www.iso-ne.com/learn

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Help us usher in a smarter, greener, more reliable power grid

Since 1997, ISO New England has been working to ensure the reliable flow of competitively-priced wholesale electricity that keeps New England’s homes, businesses, and public services up and running.

New England’s competitive wholesale electricity markets and the New England state’s clean-energy initiatives are facilitating a dramatic shift to cleaner power sources. Simultaneously, state investments in and consumer adoption of energy-efficience measues are driving down electricity use, and distributed generation is reducing the demand from the grid. ISO New England’s innovative efforts are keeping the regional power systems a step ahead of this transformation.

From traditional power plants to offshore wind and grid-scale battery storage, the ISO’s markets and systems must be constantly refined to be able to accommodate all types of existing and emerging power resources. And New England’s unique fuel-import challenges, coupled with rapid technological changes and cybersecurity threats, mean the ISO’s engineers, economists, computer scientists, and other skilled professionals are often blazing new trails in the industry.