California's duck curve deepened to new levels this spring as solar capacity increased, at times exceeding demand, the Energy Information Administration said.

ISO-NE said that last Sunday demand on the grid was the lowest it had ever recorded since the RTO began operations in 1997.

Competitive Power Ventures’ proposal to revamp ISO-NE's financial assurance rules failed to win approval from NEPOOL’s Participants Committee.

With grid challenges looming and lithium in short supply, California is looking to accelerate the deployment of non-lithium-ion long-duration storage.

Last year's events in Texas, and the growth of renewables on New England's grid, have ISO-NE and states looking at weather more closely than ever.

The phenomenon known as the duck curve is becoming increasingly common in New England, a sign that the solar energy is growing rapidly in the region.