Off-Grid Solar for
San Diego's Backcountry

Yes, but San Diego County is one of the stricter jurisdictions in California. An off-grid solar system still needs a building permit and an electrical permit, and a fully off-grid dwelling usually also requires septic and well permits. We handle the solar permitting through San Diego County Planning & Development Services so your system is legal, inspected, and insurable — not an unpermitted risk.

A whole-home off-grid system typically runs $45,000–$65,000, with the full range spanning roughly $30,000 to $80,000+ depending on your loads, how many days of battery autonomy you want, and your backup generator. The battery bank is the single biggest cost. Smaller cabin, ADU, or structure systems start lower. Every off-grid system is custom-engineered and quoted after a site and load assessment — there’s no honest one-size price.

For remote parcels, very often yes. Extending a utility line runs about $5–$25 per foot — roughly $15,000–$30,000 for a half-mile and up to about $60,000 per mile — and at the end you still have a monthly SDG&E bill. A complete off-grid system can cost less than that line extension, and you own your power outright. We’ll compare both paths honestly for your specific parcel.

It depends on your daily energy use and how many days of backup you want — most off-grid homes are designed for 3–7 days of autonomy. We size the battery bank from your actual loads, not a generic kit. Undersizing leaves you dark after two cloudy January days; oversizing wastes money. Getting this number right is the most important part of an off-grid design, and it’s where DIY kits most often go wrong.

On a true off-grid system, yes. An auto-start propane or diesel generator covers extended cloudy stretches and storms when solar production is near zero, and it protects your batteries from damaging deep discharge. It’s the safety net that keeps a fully off-grid home reliable through the worst week of winter, and we build it into our off-grid designs by default.

If your property already has grid access, a hybrid system is usually cheaper, simpler, and still gives you battery backup during outages — so most homeowners don’t actually need to fully disconnect. Fully off-grid makes the most sense when there’s no utility service at the parcel or you specifically want total independence. We model both options and show you the real cost and trade-offs before you decide.

Absolutely. Stand-alone structures are one of the most common — and most cost-effective — off-grid projects. We size a system to that structure’s specific loads, whether it’s a weekend cabin, a backyard ADU, a workshop, a gate, or a well pump on a parcel with no service. It’s often the easiest way to power something the grid will never reach.

Yes. We serve the unincorporated San Diego County backcountry, including Julian, Ramona, Alpine, Descanso, Pine Valley, Boulevard, Campo, Jamul, Warner Springs, and the surrounding communities. As a licensed local company with 30 years and 100% in-house crews, we’re set up to design, permit, and service systems out where the national installers won’t drive. Tell us your parcel and we’ll take it from there.