New York utility aims to expand its flexible interconnection pilot
After operating a 15 MW solar plant with flexible interconnection that requires occasional curtailment but not grid upgrades, Avangrid seeks to expand flexible interconnection to additional portions of its distribution grid.
California solar curtailment down 12% on back of batteries
For the first five months of 2025, CAISO data showed solar electricity curtailment declined by 12% as a share of generation, falling from 13% to 11.5%, even as solar output grew 18% year over year. During this period, however, curtailment still rose 4.1% in absolute terms, with March showing a 28% increase, matching the prior year’s peak.
Solar power curtailment rises in California
Curtailment – or intentional reduction in power production – continues to rise for both solar and wind power in California.
California bill requires utilities to evaluate grid-enhancing technologies
The Golden State leads the country in pushing utilities to adopt technology that can reduce curtailment of renewables and speed projects through interconnection queues.
Sunrise brief: Bringing stability to renewable island grids
Also on the rise: Solar curtailment is not always bad. California city to deploy pop-up solar canopy with EV charging. And more.
Sunrise brief: How the IRA is changing the U.S. solar manufacturing landscape
Also on the rise: Sunlight Financial files bankruptcy, acquired by industry consortium. California is curtailing more solar power than ever before. And more.
California is curtailing more solar power than ever before
Curtailment, or deliberately reducing output, rises as solar generation exceeds available transmission capacity.
Texas curtailed 9% of solar generation in 2022
Transmission and energy storage limitations are leading to wasted renewable energy.
Sunrise brief: How Mosaic is able to accelerate growth in uncertain times
Also on the rise: Toledo Solar talks made-in-USA solar for stable supply chains, lower emissions, fair labor. What’s the value of curtailing renewables? And more.
Can renewables curtailment be rethought as a good thing?
While curtailing solar and wind energy production can be viewed as a lost opportunity, NREL argues that it may be an important feature in the future energy grid dominated by low-cost renewable energy.
