Solar in Compton: when the city publishes almost nothing

The thinnest paper trail of any city we have researched this batch

Here is what the public record shows, stated as reported data rather than a legal conclusion, because the CEC itself disclaims certification and says enforcement sits outside its jurisdiction. California Government Code 65850.52, the SB 379 framework, required cities of Compton's size to implement an online automated permitting platform, SolarAPP+ or equivalent, that can verify code compliance and issue residential solar permits in real time for systems up to 38.4 kW AC. Compton's deadline in the CEC tracking file was September 2023. As of the August 3, 2026 data update, its platform status reads "Without Platform," annual report "None," CalAPP funding "Not Awarded."

The City's own web presence is consistent with that record. The Building and Safety Department page describes plan review, inspections, permit issuance and code enforcement in general terms. Nothing solar specific. No fee table for photovoltaic work. The CEC notes that compliance with the statute may be enforced through private claims, which is a matter for lawyers, not homeowners. What a homeowner should take from all this is simpler: expect a conventional plan check process on a conventional timeline, and do not let anyone sell you "instant permit" language borrowed from a neighboring city.

The full statutory text is at Government Code 65850.52 if you want the primary source. We cite it because the gap between what the law contemplates and what this city currently publishes is the single most useful fact for planning a Compton project.

One seller of electrons, which simplifies exactly one thing

Compton appears in Southern California Edison's filed Index of Communities in Baseline Region 8, and unlike several neighbors it has no community choice aggregator. Lynwood and Paramount show up on SCE's Clean Power Alliance partner list; Compton does not. Generation, delivery and billing all come from one company. For solar analysis that removes an entire layer of two-seller confusion, and it means every rate and export figure on this page is an SCE figure, full stop.

The bill being offset is not small. EIA's 2024 utility data puts SCE's average residential price at 32.43 cents per kWh across 3.2 million customers, per Table 6. On the current time of use menu, the summer on peak window of TOU-D-4-9PM posts 58 cents per kWh before the baseline credit, and TOU-D-5-8PM reaches 74 cents in its 5 p.m. to 8 p.m. summer window. Both metered plans carry a $0.79 daily Base Services Charge and a 10 cent per kWh baseline credit up to the monthly Region 8 allocation. Those evening prices are the economic reason solar plus load shifting works in this territory.

Modeled output on a Compton roof

Our PVGIS model run puts a downtown Compton system at 1,736.6 kWh per year per installed kW, with August the strongest month at 169.9 kWh per kW and December the weakest at 113.6. That annual figure is solid coastal plain production, and the flat month-to-month profile is friendlier to year round bills than the spiky inland pattern.

PVGIS v5.2 model run by Solar Learning Lab on August 27, 2026, NSRDB radiation database. Fixed south facing mount, 30 degree tilt, 14 percent losses, downtown Compton coordinates. Your roof will differ. The run uses the PVGIS tool. One caveat we could not close from city sources: no published climate normals exist for Compton itself in our research file, so the model, not a weather station, is the sun resource of record here. Treat it as a comparison baseline between roofs and cities, never as a guarantee for your specific shading and orientation.

Prewar roofs, old service panels, honest scoping

The state's 2026 housing estimates count 25,089 units in Compton, 17,183 of them single detached, 68.5 percent. That is a real rooftop base. But the growth history matters just as much: the city's biggest construction decades ran from the 1920s through the 1950s, including a 746.8 percent population jump in the 1920s. Housing that old routinely carries electrical service panels that were never sized with a solar backfeed in mind.

In practice that means a Compton quote without a line item addressing the main panel is an incomplete quote. Maybe the panel is fine. Plenty are. But the question has to be asked at the site visit, priced up front, and folded into the permit scope, because a mid project panel discovery is where budgets and timelines in older cities go to die.

Get a cautious first number

This estimator deliberately knows less than your bill does. It applies the statewide average rate to our Compton production model and standard California cost inputs. It does not know your rate plan, your CARE status or your export hours. Use it to compare sizes and payment paths, then make an installer defend every assumption that differs.

We are a solar installer and we also partner with other solar companies.

What we verified, and what Compton never published

Every factual claim above traces to the documents below, all reviewed for this page on August 27, 2026. Where the city record is silent, we said so instead of guessing.

• Compton Building and Safety and its Citizen Serve portal page
• CEC residential solar permitting data, August 2026 and Government Code 65850.52
• Government Code 66015 fee caps and Civil Code 714 solar rights
• SCE Index of Communities, SCE community choice page, SCE time of use plans and EIA Table 6
• CPUC Net Billing Tariff and Decision 22-12-056
• CPUC SGIP, DAC-SASH, CRS IN12611 and BOE property tax exclusion
• DOF E-5 housing estimates, Compton background and PVGIS