Solar installation in San Diego, CA
Custom-designed solar and battery systems for San Diego homeowners. San Diego Gas & Electric expertise, no high-pressure sales — just a transparent quote.
Solar installation in San Diego pencils out faster than almost anywhere in America, for one blunt reason: SDG&E's bundled residential rate averages about 46¢/kWh — the highest of any major utility in the continental U.S., with summer peaks near 70¢. Under NEM 3.0 exports earn little, so the winning design stores midday production for the expensive evening window instead of selling it back. Geography matters here: coastal neighborhoods like Point Loma and Ocean Beach lose some morning production to the marine layer, while Clairemont, North Park, and inland Rancho Bernardo or Mira Mesa produce nearly valley-grade numbers. The City of San Diego issues instant online permits for residential PV and batteries up to 38.4 kW, so a well-prepared project moves from contract to install quickly. Helios models your actual SDG&E usage hour by hour, and Taylor signs off on every San Diego design.
What solar looks like in San Diego.
Every market has different utility rules, sun resources, and structural realities. Here's what we factor in when designing for San Diego homes.
SDG&E's ~46¢/kWh average rate is the highest of any major U.S. utility — every self-consumed kilowatt-hour is worth more here than anywhere else we work
City of San Diego issues instant online solar permits (PV + battery up to 38.4 kW) through its self-certification program
Coastal marine layer ("May Gray/June Gloom") derates mornings near the beach — inland neighborhoods like Rancho Bernardo produce like a valley city
Why San Diego homeowners choose Helios.
We design and install across San Diego — from Clairemont, North Park, and Point Loma, near Balboa Park, the USS Midway, and Petco Park. Everything from 1950s–60s Clairemont ranch homes and North Park Craftsman and Spanish bungalows to 1980s–2000s stucco-and-tile tracts inland — roof, era, and shading vary block by block.
8+ years across SoCal
1,000+ installs across 60+ cities — we know SDG&E, your permit office, and local roofs.
Owner signs off on every design
Taylor Crouse, our founder, personally reviews your layout and equipment before anything is ordered.
4.9★ from 170+ homeowners
25-year panel warranty and a 10-year workmanship guarantee on every install.
SDG&E Rates and NEM 3.0: Why San Diego's Solar Math Is Unique
San Diego homeowners pay the steepest electricity prices of any major-utility territory in the continental U.S. — SDG&E's bundled residential average sits around 46¢/kWh, with summer evening peaks climbing far higher. That single number reframes the whole solar conversation. Under NEM 3.0 Net Billing, which took effect in April 2023, energy you export to the grid earns roughly 75% less than it did under the old net metering rules — often just a few cents per kilowatt-hour. So the old strategy of covering your bill with export credits no longer works.
What does work in San Diego is self-consumption. Every kilowatt-hour your panels produce that you use on-site avoids buying that same kilowatt-hour from SDG&E at ~46¢ — a displaced-cost value no other American city can match. The practical design is an array sized to your real annual usage plus a battery that soaks up the midday surplus and discharges it through the 4–9 PM peak window, when SDG&E prices are at their worst. Because the avoided rate is so high, San Diego is one of the few places where the solar-plus-battery combination routinely outperforms what solar-only achieved under the old rules elsewhere. We model your actual SDG&E interval data hour by hour, not a generic profile, so the projection reflects how your household really uses power.
Instant Permits: The City of San Diego's Online Solar Process
The City of San Diego runs one of the most contractor-friendly solar permitting systems in California: an instant online permit with contractor self-certification for residential rooftop PV and battery storage up to 38.4 kW. For a code-compliant system on a typical single-family home, there is no waiting on plan check — the permit issues through the city's online portal once the application and fees are complete, and the project moves straight to scheduling. Larger systems, unusual structural situations, and projects bundled with a main-panel upgrade route to standard review instead, which adds time but is still a well-worn path.
One address-specific caveat: 'San Diego' mailing addresses don't always mean City of San Diego jurisdiction. Pockets of unincorporated county land carry San Diego mailing addresses but permit through the County of San Diego's Planning & Development Services instead, so we confirm your actual authority having jurisdiction before promising a timeline. After the permit and installation come city inspection and then SDG&E interconnection — the utility's permission-to-operate step is usually the longest single wait in the schedule, and we file it promptly and track it so your system energizes as soon as SDG&E allows. Helios handles every filing in that chain end to end.
From Clairemont Ranches to North Park Bungalows: Designing for Every Roof
Few cities pack as much roof variety into one permit jurisdiction as San Diego. Clairemont's 1950s–60s ranch homes offer low-slope, open composition-shingle planes that install quickly, but homes of that era often carry aging 100-amp electrical panels that need evaluation before adding solar and storage. North Park and the older mid-city neighborhoods bring Craftsman and Spanish bungalows with smaller, cut-up roof planes, occasional clay tile, and mature street trees — layouts there are drawn plane by plane, and module-level electronics keep one shaded panel from dragging down the array. Inland, the 1980s–2000s stucco-and-tile tracts of Rancho Bernardo and Mira Mesa present the cleanest case: broad south- and west-facing planes of concrete tile that take tile-hook mounting well.
Orientation strategy matters more under NEM 3.0 than it used to. Because evening electricity is the expensive electricity, a west-facing plane that produces later into the afternoon can be worth as much as a nominally 'better' south face, especially for homes without a battery. Point Loma and other coastal roofs also get an honest marine-layer adjustment in our production model rather than an inland sun assumption. Every design starts from your specific roof's age, structure, and shading — and Taylor reviews each San Diego layout before anything is ordered.
Batteries in San Diego: Peak Shifting First, Backup Second
In many California cities the battery conversation starts with wildfire outages. In most of San Diego proper it starts with arithmetic. The city's core neighborhoods aren't high-fire-threat territory, and multi-day public safety shutoffs are rare here — but SDG&E's evening rates are the nation's highest, and NEM 3.0 pays almost nothing for exports. A battery closes that gap daily: it banks your midday surplus and spends it across the 4–9 PM peak, converting production that would have earned pennies into avoided purchases at premium rates. That everyday arbitrage, repeated 365 times a year, is what drives San Diego's strong solar-plus-battery paybacks.
Backup is the secondary benefit, and still a real one — a grid-tied array without storage shuts down during any outage, while a battery keeps the refrigerator, internet, and medical equipment running automatically. Climate shapes the sizing: coastal homes in Point Loma or Ocean Beach often run modest loads year-round and do well with a single battery, while inland Rancho Bernardo and Mira Mesa homes with real summer AC demand may justify more capacity. On incentives, we're straightforward: the federal residential solar tax credit expired at the end of 2025, and SGIP — California's battery rebate program — is waitlisted for general-market applicants, so we quote the real price and treat any rebate as a bonus if funding reaches you, never as a promise.
San Diego's utility: San Diego Gas & Electric
How net metering works for you.
SDG&E operates under NEM 3.0. With the highest electric rates in the country, solar+battery still produces strong returns here.
Production estimate
A typical 8 kW system on a San Diego roof produces approximately 16,352 kWh per year given 5.6 peak sun hours per day. We'll model your exact roof, shade, and azimuth in your free assessment.
Along the coast, the marine layer trims morning output, so panel orientation and system sizing matter more here than they would inland — we design around it rather than assuming inland sun.
* Ballpark estimate. Actual production depends on roof pitch, orientation, shading, and panel choice.
SoCal Solar Index · July 2026
San Diego ranks #7 of 64 Southern California cities for estimated year-1 solar savings — ~$4,090 on a standard 8 kW system at 45.0¢/kWh under SDG&E NEM 3.0.
Source: the SoCal Solar Index — free data on rates, permits, and solar economics for 64 SoCal cities (CC BY 4.0).
Our solar process in San Diego.
- 1
Free home assessment
We pull your SDG&E usage data and model your exact roof, shade, and azimuth — no guesswork, no obligation.
- 2
Custom design & transparent quote
Taylor designs your system and signs off on it personally. You see every line item — panels, inverter, mounting, labor, permitting — before you decide.
- 3
Permitting & install
We pull every San Diego permit, manage the inspection, and handle San Diego Gas & Electric interconnection. Most roofs are done in 1–2 days.
- 4
Powered on & monitored
Most systems are commissioned within 6–10 weeks of signing, with per-panel monitoring so you see exactly what your system produces.
Our promise: a transparent quote with every cost itemized, and a 10-year workmanship guarantee on every San Diego install.
What SoCal homeowners say.
Verified Google reviews — 4.9★ from 170+ Southern California homeowners.
San Diego solar questions, answered.
- How much does solar cost in San Diego?
- Most San Diego homes run roughly $2.40–$3.25 per watt before incentives — about $17,000–$29,000 for a typical 6–9 kW system, plus $13,500–$17,500 for a battery most NEM 3.0 designs want. Against SDG&E rates near 46¢/kWh, solar+battery paybacks here are among the fastest in the country.
- Is solar worth it in San Diego under NEM 3.0?
- Yes — arguably more than anywhere else. NEM 3.0 cut export credits, but the flip side of SDG&E charging the nation's highest rates is that every kilowatt-hour you generate and use yourself is worth ~46¢. With a battery shifting midday solar into the 4–9 PM peak, typical paybacks land around 5–8 years here.
- How fast are solar permits in the City of San Diego?
- Fast — San Diego offers instant online permitting with contractor self-certification for residential PV and storage up to 38.4 kW. Complex roofs, larger systems, or main-panel upgrades take the standard review path. We handle the filing either way, plus SDG&E interconnection.
Roofing in San Diego
San Diego's housing stock runs heavily to composition shingle and low-slope roofs, with salt air aging them faster near the water — and a roof near the end of its life is the one thing that should come before solar, not after. Replacing it as part of the solar project (reroof first, panels right behind) avoids the $3,000–$5,000 panel remove-and-reinstall that mis-sequenced projects pay later, with the roofing performed by our licensed roofing partners and the whole timeline coordinated by Helios.
Roof replacement · 2026 roof costs · Solar on shingle roofs
Adding backup power too? See Tesla Powerwall installation in San Diego.
San Diego is a San Diego Community Power member. SDCP changes who credits your solar exports — and adds programs worth real money.
How SDCP affects your solarWe install on every San Diego roof type
Tile, shingle, flat, metal or slate — mounting and flashing differ on each. See exactly how we keep your specific roof watertight.
Get a transparent San Diego quote.
Free home assessment, no pressure. Includes panel layout, monthly savings projection, payback period, and every line-item cost.