whitePaper | June 6, 2022
Installed solar photovoltaic (PV) capacity has grown rapidly in the United States over the past
decade, reaching nearly 74 gigawatts-AC as of the end of 2020. Approximately one-third of this
capacity (28 gigawatts) is distributed PV, including residential, community, and commercial
solar installations (Davis et al. 2021). A combination of technology cost declines, federal
incentives, and state policy support have driven increased deployment and enabled more
communities to access the benefits of PV. Increasingly, solar is playing an important role in local
plans such as resilience planning, sustainability planning, and climate action planning.
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