Free bill analysis - bring a power bill, get the production math for your actual roof, panel brands like Qcells and REC compared side by side
If the pitch starts at your door and ends with "sign tonight for the special," sleep on it. The sun will still be there tomorrow; so will we.
Fast, Reliable Solar Battery Storage & Backup Across Orinda
Battery storage in Orinda runs $16,500 to $28,000 installed for a whole-home system, and most jobs take two to three days once permits clear. The real question in this town is not whether you can afford a battery. It’s what happens to your home the next time PG&E cuts power during fire season. We install and service battery systems across Orinda, from the flats near Orinda Village up into the hills off Miner Road and Glorietta, and we answer our own phone at (877) 550-6892 when you call.
Why Gus’s Solar Is Orinda’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis put his name on this company in 2011, and he’s been answering for the work ever since. Homeowners in Orinda tell us the same thing: they’re done with out-of-state outfits that quote one number over the phone and another at the door. Our Solar Battery Storage & Backup team quotes off your actual PG&E bill and shows you the year-25 output, not a day-one brochure figure. Bring me a bill, I’ll bring you the math. That’s how we work in Orinda.
When a 1962 hillside home off Miner Road needed whole-home backup ahead of PSPS season, we showed up same week. The homeowner had a legacy 100-amp panel and an oak tree chewing up morning sun. We ran LiDAR-based shade modeling, mapped the fire department’s required 18-inch ridge and edge setbacks, and built a system that actually fit the roof. That’s the difference between a local shop and a sales crew that has never set foot in Lamorinda. On time, community first, accountable, loyal. Gus answers the phone, and his own crew does the install. No subs, no voicemail, no ticketing portal.
We hold a California contractor’s license, carry insurance and bonding, and every job comes with our 90-Day Done Right Promise in writing. If it’s not right, one call brings Gus back. No-hassle upfront pricing means the number you see is the number you pay, period. And every Orinda customer gets a live person on the line 24/7 when they call.
Our Solar Battery Storage & Backup Services in Orinda
Tesla Powerwall Installation
A single Tesla Powerwall 3 stores 13.5 kWh, and most Orinda homes need one to two units depending on whether you want partial or whole-home backup. On a 1960s custom build with a 100-amp panel, the Powerwall alone is rarely enough to run the whole house through a multi-day PSPS event. We often pair it with a main panel upgrade to 200 amps so the battery can actually feed every circuit. Typical cost for a single Powerwall install in Orinda runs $16,500 to $21,000, including the Gateway and permitting.

Enphase IQ Battery Installation
If you already have Enphase microinverters on your Orinda roof, the Enphase IQ Battery is a natural fit. The 5P model delivers 5 kWh per unit, and we can stack them for more capacity. Because Orinda’s mature oaks cast long morning shadows, we always run shade modeling before sizing an IQ Battery array. Undersizing a battery because a satellite image missed the tree line is the most common mistake we correct. IQ Battery installs in Orinda typically run $14,500 to $19,500 depending on stack size and panel work.

Whole-Home Backup Power
True whole-home backup in Orinda means the AC, the well pump if you have one, the refrigerator, the EV charger, and the medical equipment all stay live when PG&E cuts power. Older hillside homes frequently have subpanels that need rewiring before whole-home backup is physically possible. We quoted one Glorietta-area customer whose 1958 panel had been patched four times over sixty years. We replaced the main, rewired two subs, and connected a FranklinWH aGate system. That house rode out a 54-hour shutoff without noticing. Whole-home backup systems in Orinda start around $19,000 and run to $28,000 depending on panel upgrades and battery count.

Battery Retrofit for Existing Solar
If your Orinda roof already has solar, adding a battery is usually straightforward. The existing inverter matters less than the age of the panel and the condition of the meter. NEM 3.0 changed the export math for every Orinda homeowner with solar. Under the old rules, you banked daytime production for nighttime use. Under NEM 3.0, self-consumption is the game. A battery retrofit lets you store your own juice instead of selling it to PG&E for pennies. We do Tesla, Enphase, FranklinWH, and SolarEdge retrofits. Retrofit jobs in Orinda typically run $15,000 to $23,000 before any federal tax credit.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Orinda
We install and service Tesla, Enphase, FranklinWH, and SolarEdge battery systems across Orinda. We stock local parts at our Bay Area shop and do not wait on backordered components from across the country. If your existing system has an Enphase IQ Battery that’s throwing a fault code, or a Tesla Powerwall that’s not cycling properly, we carry the firmware tools and replacement hardware to fix it the same week. We’d rather repair than replace, and we’ll tell you which one actually makes sense before we quote anything.
Common Solar Battery Storage & Backup Problems We See in Orinda Homes
- Battery capacity killed by oak shade. A satellite image might show a clear south-facing roof, but a mature bay laurel on the neighbor’s lot can knock out three hours of morning sun. We use LiDAR-based shade analysis on every Orinda battery sizing because the terrain here makes two-dimensional maps next to useless.
- 100-amp panels failing interconnection. Contra Costa County enforces current rapid shutdown and code requirements, and an original 1960s panel almost never complies. Interconnection gets delayed until the main panel is upgraded, which adds $3,500 to $6,000 and two weeks to the timeline.
- Non-compliant roof setbacks cutting panel area. Orinda’s Wildland-Urban Interface classification means inspectors check every ridge and edge. Complex multi-pitch roofs with irregular geometry often have fewer compliant panel positions than the homeowner hoped. If the array gets undersized, so does the battery. We run setback modeling before any proposal, not after the permit is filed.
- Undersized batteries that can’t bridge a multi-day PSPS. A single 5 kWh battery can keep the fridge and a few lights on. It cannot run a hillside home for 54 hours. We size for Orinda’s actual outage patterns, not for a generic California average. If you want true backup, we’ll tell you what capacity that takes and what it costs.
Pricing for Solar Battery Storage & Backup in Orinda, CA
A typical battery retrofit in Orinda runs $15,000 to $23,000 for a single-unit system and $20,000 to $28,000 for whole-home backup with panel upgrades. A single Tesla Powerwall 3 installed runs $16,500 to $21,000. An Enphase IQ Battery system runs $14,500 to $19,500. These are honest Orinda market ranges, not brochure estimates. What actually moves the number: whether your panel is 100 amp or 200 amp, whether your roof has enough compliant panel positions to charge the battery, and whether you want partial or whole-home backup. Federal tax credits still cover 30% of the installed cost, and we have a senior and veteran discount that never expires. We offer free estimates, and there’s no trip charge inside our own county. Take two weeks. Think about it. The price will be the same. If a salesman needs an answer tonight, the answer is no. Call (877) 550-6892 for an exact quote off your actual bill.
We Also Serve Cities Near Orinda
We work across Lamorinda and the East Bay every week. If you’re in Lafayette, Piedmont, Berkeley, or Saranap, we bring the same local knowledge and the same owner-accountability to your battery project. Our crews coordinate from the Bay Area office and serve Orinda and the surrounding cities directly. Call us and we’ll be there.
Serving Orinda, CA - Our Local Coverage Area
We’re based in the Orinda area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Solar Battery Storage & Backup in Orinda
Roof-mounted panels in Orinda must maintain 18-inch setbacks from roof edges and ridges, and in some cases that shrinks your usable panel area by a third. The fire code applies to any panel that would charge your battery, so it directly affects battery sizing. We run setback modeling before we quote because the compliant array size determines how much battery capacity makes sense. Call (877) 550-6892 and we’ll show you the compliant layout on your own roof.
Almost never. A 100-amp panel on a mid-century Orinda home typically can’t handle the rapid shutdown and current code requirements, and it usually can’t carry a whole-home battery circuit load. Plan on a main panel upgrade to 200 amps, which adds $3,500 to $6,000. We’ll tell you straight if your panel needs to go before we quote the battery. Free estimate, no signature wanted tonight.
Satellite images don’t catch the deep morning shade from mature oaks and bay laurels that fill Orinda’s hillsides. A satellite might show a clear roof while a LiDAR model shows three hours of lost production each morning. That lost production changes your battery’s ability to recharge during a PSPS event. We run LiDAR-based modeling on every Orinda battery job because the town’s tree canopy makes two-dimensional maps misleading. Call us at (877) 550-6892 for a real shade read on your roof.
PSPS events shorten the payback period because the value of backup during an outage is real, not theoretical. Orinda’s Wildland-Urban Interface location means shutoffs are not a rare event. They’re a recurring fire-season reality. When your battery keeps the fridge running and the well pump alive for two days straight, the math on savings per kWh changes. We model payback using your actual PG&E usage and the time-of-use rates that apply under NEM 3.0, so you’ll see the year-25 numbers before you sign anything.
Yes, in most cases you can retrofit a battery to an existing array without touching the panels. The factors that matter are your inverter type, your panel’s amp capacity, and whether your existing system has enough compliant panel area to charge the battery meaningfully. On Orinda homes with legacy 100-amp panels, we sometimes do a panel upgrade as part of the retrofit, but the solar panels stay put. Call us for a free second opinion on any written estimate. (877) 550-6892.
If your Orinda home needs battery storage that actually works during a shutoff, call Gus’s Solar at (877) 550-6892. We serve all of 94563, from Orinda Village up to Miner Road and beyond. Free estimates, honest pricing, and a live person on the line. Always.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Orinda and the East Bay since 2011.






Before
After
Before
After
Before
After