PJM proposed changes to how it measures and verifies the capacity contribution of energy efficiency resources, drawing concerns the RTO is moving too fast to implement changes ahead of the next capacity auction.

A new report indicates battery energy storage system failures are ramping up with the spread of the technology, and most often occur in new systems. 

FERC rejected preliminary permits for seven pump storage projects on Navajo land, saying it no longer will consider projects that are opposed by host tribes.

Quality control problems affect a sizable number of new energy storage systems, creating potential safety and performance risks, a new report indicates.

A recent study found that deploying 37 GW of long-duration energy storage could help bring California to zero emissions by 2045.

ERCOT stakeholders are moving closer to taking action on a tabled rule change that would address the reliability concerns with inverter-based resources.

FERC released the latest iteration of its Common Metrics Report on ISO/RTO markets, which evaluates their performance and benefits.

While the deployment of utility-scale battery storage has accelerated in recent years, additional regulatory and policy support is needed to scale up the industry, a panel of experts convened by CESA said.