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December 5, 2025

Rooftop/distributed Solar

Calif. Energy Commission Relaxes Rooftop Mandate
The California Energy Commission allowed the Sacramento Municipal Utility District to sell solar power as an alternative to solar panels on new homes.
Rooftop PV’s ‘Hidden Loads’ Challenge Grid Planners
DERs such as rooftop solar panels and batteries may pose a higher risk for grid stability than previously thought, the chief engineer for SDG&E warned.
Sunrun Ruling Cuts Red Tape for PV Aggregators
The solar power industry won a victory against paperwork as FERC issued an order exempting residential aggregators from federal filing requirements.
DOE Lab to Join PJM DER Integration Effort
The Department of Energy will collaborate with PJM to develop standards aimed at improving the integration of distributed energy resources onto the grid.
ISO-NE Planning Advisory Committee Briefs: March 21, 2019
Ten transmission upgrades have been placed in service in New England since October, ISO-NE engineer Jon Breard told the RTO’s Planning Advisory Committee.
© RTO Insider
New England Talks Solar, Storage and Public Policy
The 160th New England Electricity Restructuring Roundtable focused on solar power as well as the ways in which energy storage can support it on the grid.
© RTO Insider
CAISO Rev Requirement Shrinks, Despite RC Role
CAISO’s 2019 revenue requirement will be less than this year’s, despite hiring and costs associated with its planned new role as reliability coordinator for most of the West.
© RTO Insider
Calif. Code Change Would Mandate Rooftop Solar
The California Energy Commission (CEC) unanimously approved a mandate requiring new homes in the Golden State to include rooftop solar.
Connecticut Energy Bill Draws Mixed Reviews
Connecticut’s General Assembly passed a bill that doubles the renewable portfolio standard to 40% by 2030 while also revoking net metering guarantees.
Lively OMS Discussion Probes Common Grid Beliefs
State regulators proved reluctant to be pinned down on predictions about the future of the grid at the annual meeting of the Organization of MISO States.

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