New York regulators decline to cap solar and storage interconnection costs, require utility cost reporting
At its August 13, 2026 session the Public Service Commission declined to cap developers' interconnection upgrade costs and instead required utility cost and study-timeline reporting, with tariff amendments effective October 1, 2026 and annual filings from March 31, 2027, according to the Department and a copy of the order.
On August 13, 2026, the New York Public Service Commission ("PSC") acted in Cases 24-E-0621 and 24-E-0415 on the cost and timing of interconnecting distributed energy resources, and the order copy read for this briefing is headed "Order on Interconnection Costs and Study Timelines" and "Issued and Effective August 17, 2026." The Commission declined to adopt a proposed 115 percent limit on developer payment obligations and declined to establish utility performance metrics, and instead required utilities to report cost and study-timeline data and to propose better cost estimates. The Department of Public Service's session summary states that the Commission directed utilities to file tariff amendments that will take effect by October 1, 2026, a date that has now passed.
N.Y. Pub. Serv. Comm'n, Cases 24-E-0621 and 24-E-0415 (Aug. 13, 2026 session; order dated Aug. 17, 2026 per copy)