BETHESDA – – November 02, 2026 -- Hull Street Energy (HSE), a U.S. power-focused investment firm, has completed its acquisition of FirstLight's U.S. platform from the Public Sector Pension Investment Board (PSP Investments), taking control of nearly 1,400 MW of clean generation in the Northeast.

Northfield Mountain anchors the portfolio at 1,168 MW

The largest asset is Northfield Mountain, a 1,168 MW pumped storage hydro project in Massachusetts. The source describes it as the largest energy storage facility in New England.

Albany, N.Y. – October 07, 2026 -- FirstLight is connecting a western Pennsylvania site to its fiber network with just 31 miles of new construction, leveraging an existing backbone to cut the timeline hyperscale and neocloud operators typically face when activating new facilities.