RSS feed source: US Energy Information Administration
In-brief analysis
October 16, 2026
We estimate that U.S. generation from small-scale or rooftop solar photovoltaic systems (smaller than 1 megawatt of capacity) has increased from 18,812 gigawatthours (GWh) to 92,979 GWh over the last decade. The four states with the highest generation of small-scale solar in the country—California, Arizona, Texas, and Florida—are in regions with more abundant solar resources. Even though it is in a region with lower solar resources, New York ranks as the fifth-largest rooftop solar generation producer as a result of capacity growth supported by technology improvements and state incentives.
The year-over-year change in generation was particularly high in 2022, when total generation grew by 25% compared with the previous year amid record capacity growth. Changes in different programs supporting rooftop solar partly explain this increase in generation. For example, California’s Net Energy
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