The Guiding Renewable Interconnection and Distribution (GRID) Amendment Act of 2026 aims to enhance the interconnection process for solar systems in the District, making it easier for residents and developers to connect to the electric grid. Key provisions include the requirement for the Public Service Commission (PSC) to maintain an updated guide on Pepco's website regarding costs and processes, the establishment of an ombudsman to assist with interconnection issues, and the allowance for residents to install plug-in solar systems without the same approval requirements as rooftop installations. The bill also introduces new definitions related to interconnection, mandates electric companies to conduct internal reviews and provide transparent cost estimates, and ensures compliance with existing interconnection rules.

Additionally, the bill amends existing laws governing electric companies and renewable energy systems by requiring timely notifications to the PSC if deadlines cannot be met, and mandates the issuance of Authorization to Operate within twenty business days of receiving a completed interconnection certificate. It establishes a cost-sharing methodology for solar interconnection customers and clarifies that portable solar generation devices will not be subject to interconnection or net metering requirements unless agreed upon by the owner. The bill also updates the Renewable Energy Portfolio Standard Act, including new criteria for renewable energy systems and stipulating that geothermal energy systems outside the District will not qualify for renewable energy credits after a certain period. The legislation will take effect after approval by the Mayor and a congressional review.