Get the basics on how electricity gets to New England’s homes and businesses.
Electricity is measured in both capacity and energy watts and watt-hours. Understanding the difference is critical to understanding how the power grid works.
A dependable flow of electricity is priority number one for the ISO. Learn what this means from both a practical and technical perspective.
Watch short videos that explain how load ramping, voltage, and frequency help maintain power grid reliability—and how they’re affected by the increasing penetration of variable generation. The videos are presented by the North American Electric Reliability Corporation (NERC).
Get an overview of the ISO’s regulatory environment and stakeholders in its role as Regional Transmission Organization (RTO) for New England.
Learn about the intensive work that goes into developing and documenting compliance with standards that help ensure the reliable operation of the power grid.
The ISO’s varied roles and responsibilities require a broad spectrum of professionals in a highly competitive industry.
Learn how the ISO funds its operation, develops its annual budgets, and determines its yearly service rates for customers.
Your electricity needs never stop, and neither does the ISO. Download this booklet for a “tour” of our state-of-the-art control room and an overview of how the ISO’s system operators keep electricity supply and demand in near-perfect balance every minute of the day.
Read about how ISO innovation and stakeholder collaboration enabled the electronic dispatch of the region’s wind and intermittent hydro resources for the first time in 2016, allowing these resources to become eligible to set real-time wholesale electricity prices.
Get an overview of the effects that solar photovoltaic (PV) systems have on demand from the regional power system and how the ISO is handling related challenges.
Learn how the ISO takes steps to help protect the power grid in the event of predicted geomagnetic disturbances caused by solar events.
Learn how the ISO uses weather forecasts in formulating electric demand estimates.
Learn how ISO New England plans for the region’s energy use on this not-so-typical Thursday morning.
Read about how the ISO creates forecasts of New England’s electricity needs.
Learn how temperature and other factors affect the grid—and the actions the ISO takes when electricity demand is outpacing supply.
Get the basics on how wholesale prices affect retail rates, and how you can spot these in your retail electricity bill.
The goal of energy markets is to provide reliable wholesale electricity at competitive prices. The markets accomplish this goal using two core mechanisms: economic dispatch and uniform clearing price.
Download this two-page overview of the purpose, structure, operation, and effectiveness of the region's wholesale electricity marketplace.
The region’s transmission owners develop transmission rates in New England—learn more.
Read about the most widespread outage in our nation’s history and what’s been done to prevent a repeat.