StoraIQ
Sacramento Building Permits · 2016–2025
Data Story · Portfolio

Sacramento's Solar Boom

Between 2016 and 2025, Sacramento issued 17,159 solar permits worth $2.3B in total project value. The breakdown of who, where, and when is more interesting than the total.

Production Growth
Solar permits in Sacramento grew +57% from 2016 to their 2021 peak. A state mandate, a federal tax credit, and Lennar's push into North Natomas all landed in the same five years.
1,493
2016 baseline
2,349
2021 peak
+57%
Growth
0
Solar Permits
2016–2025
$0
Total Valuation
Permitted project value
0%
Completion Rate
Permits reaching final inspection
0
Peak Year (2021)
ITC extension + COVID
Policy
California Title 24 Mandate
Jan 1, 2020: California became the first state to require solar on all new single-family homes. Every new build in Sacramento must offset 100% of estimated energy use with solar.
Finance
ITC Extension (Dec 2020)
Congress extended the 26% federal Investment Tax Credit through 2021–2022 as part of COVID stimulus — preventing a scheduled stepdown to 22%. This directly triggered the 2021 permit surge.
Market
Tesla Acquires SolarCity
November 2016: Tesla acquired SolarCity for $2.6B. SolarCity held ~40% of the U.S. residential solar market at acquisition. In our data, you can track the handoff from SolarCity to Tesla Energy after 2016.
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Permit Volume by Year

Solar adoption surged 32% from 2020 to 2021, driven by the ITC extension and pandemic home investment. Hover any data point to see the year-over-year change. Reference lines mark the Title 24 mandate (2020) and the ITC peak (2021).

Who Installed Sacramento's Solar?

Sunrun, SunPower, and SolarCity (now Tesla) dominate the retrofit side. Homebuilders Lennar and D.R. Horton are in the top installers too — Lennar was including solar as standard in North Natomas in 2016, four years before the state required it. Use the filter to switch between contractor types.

Where Did Solar Spread?

District 1 (North Natomas) dominated 2016–2021 because of Lennar's Northlake development: 1,137 homes, all with solar. District 3 jumped in 2019–2020 when Title 24 took effect. By 2024, the gap between districts is mostly gone. Click any district to isolate or compare.

The Insight

Sacramento's solar story has three chapters: homebuilders wired it in (2016–2019, Lennar/D.R. Horton in North Natomas), the state mandated it (2020 Title 24), and the government funded it (2021 ITC extension peak). This growth came from policy and capital, not consumer demand pulling the market.

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