Residential solar has seen brighter days.
As detailed in the most recent U.S. Solar Market Insight report, national residential PV installations fell both year-over-year (17 percent) and quarter-over-quarter (11 percent) for the first time since GTM Research began tracking the market on a quarterly basis in 2010. That’s a big deal.
When one takes a closer look at the data, it’s clear that much of this downturn can be pegged to the fortunes of California, which is still the largest state market for residential PV. But the state’s standing is diminishing.
In Q1, California accounted for its smallest share of the national market at 35 percent — down from 42 percent in Q1 2016 — while falling over 30 percent year-over-year.