For the purpose of this data summary, “distributed” PV systems consist of all residential systems, roof-mounted non-residential systems, and ground-mounted non-residential systems up to 7 MWDC, regardless of project ownership or off-take agreements, including community solar. Ground-mounted. Solar and battery storage are set to account for 79% of 86 GW of new utility-scale capacity planned in the United States in 2026, marking the largest annual increase in more than two decades, according to US federal data. From pv magazine USA Project developers and utility operators are preparing. Rooftop solar panels, backup batteries, and emergency diesel generators are examples of DER. While traditional generators are connected to the high-voltage transmission grid, DER are connected to the lower-voltage distribution grid, like residences and businesses are. power grid in 2025 in our latest Preliminary Monthly Electric Generator Inventory report. This amount represents an almost 30% increase from 2024 when 48.
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