Hawaii is a leader in distributed solar photovoltaic (PV) adoption. It has the highest rate of PV-based electricity penetration in the U.S. and rivals global front runners. The policy impetus towards large-scale adoption of renewable energy comes from the Renewable Portfolio Standard, with a target of 40% net electricity sales from renewable sources by the year 2030 and 100% by 2045. Rooftop PV provides the largest share of renewable energy in Hawaii’s electricity generation portfolio. This study analyzes demographic factors related to residential PV system adoption in Hawaii. It provides an econometric analysis, augmented by maps, to better understand the demographic characteristics of households adopting PV systems. Understanding drivers of past uptake is important to gaining insight into future trends, particularly as Hawaii continues towards its 2045 RPS goal.

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