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 Woodside
Solar battery storage in Woodside runs $11,500 to $18,500 fully installed for most estate homes, and a properly sized system keeps your lights, well pump, and refrigeration running through PG&E public safety power shutoffs without touching a single heritage oak. Gus’s Solar has been putting batteries on Woodside properties long enough to know what the shade, the fog, and the design review board all do to your production numbers. We quote the year-25 output, not the day-one brochure number, and we tell you upfront whether a battery makes financial sense under NEM 3.0 or whether you’d be better off waiting. Call (877) 550-6892 and bring us a bill. We’ll bring you the math.
Key takeaways for Woodside homeowners: battery installs here typically take 2 to 3 days once equipment arrives, your existing rooftop array may be producing 30 to 40 percent less than a comparable unshaded roof in Redwood City, and yes, you can keep your oaks and still have whole-home backup. We’ll show you exactly how below.
Why Gus’s Solar Is Woodside’s Preferred Solar Battery Storage & Backup Company
Woodside is not Menlo Park. The town’s entire identity is built around its wooded, rural character, and that means the standard battery proposal you’d get from an out-of-state installer doesn’t fit here. Gus Petrakis founded this company in 2011, puts his own name on the truck, and answers his own phone. When you call (877) 550-6892 at 9 p.m. during a PSPS event, a live person picks up. Not a voicemail, not a ticketing portal, not a call center three states away.
Woodside customers see us at the hardware store, at the post office off Woodside Road, at the farmers market. We’re not a pop-up sales crew that vanishes the morning after the system goes live. When something faults, Gus’s crew comes back. The 90-Day Done Right Promise is in writing on every solar job: if it’s not right, one call brings Gus back to make it right. That promise means more on a Woodside estate where a battery sits in a horse barn or a detached garage and has to hold up through fog, oak tannins, and years of partial shade.
We run background-checked, uniformed technicians on every job. When a crew shows up at your gate off Mountain Home Road or Portola Road, you know exactly who’s walking onto your property before they get there. No subcontractors, no hand-offs. Gus’s own crew does the install, flashes every penetration properly, and stands behind the work.
For Woodside specifically, we’ve spent years learning what the town’s design review process will and won’t approve, where ground-mounted arrays make sense on horse properties, and how to engineer around shade without asking you to cut down a heritage oak. That local knowledge shows up in the proposal, not in a sales pitch. Take two weeks. Think about it. The price will be the same.
Our Solar Battery Storage & Backup Services in Woodside
Woodside’s combination of multi-acre lots, mature tree canopy, and PG&E’s fire-season shutoffs means battery work here skews toward whole-home backup and retrofits, not simple add-ons. We’ve built our Solar Battery Storage & Backup practice around what Woodside actually needs. Here’s what we do most often in the 94062 ZIP.
Tesla Powerwall Installation
A Tesla Powerwall 3 installed in Woodside typically runs $12,000 to $15,500 before any incentives, including the Gateway and all wiring. On estate homes with 400-amp service or detached structures, expect to be at the higher end. We size the number of Powerwalls to your actual bill and your actual outage history, not a generic square-footage formula. If your panel is shaded, the battery is doing more heavy lifting, and we’ll tell you that plainly.

Enphase IQ Battery Installation
For Woodside homes with existing Enphase microinverter arrays, the Enphase IQ Battery 5P is often the cleaner fit. Installed pricing runs $11,500 to $16,000 depending on whether you go with one, two, or three units. The advantage on a shaded Woodside lot is that Enphase’s per-panel monitoring already tracks which modules are underproducing, so the battery’s charge and discharge logic can be tuned to what your roof actually generates, not what a sunlight-hours table says it should.

Whole-Home Backup Power
Most Woodside clients want whole-home backup, not partial. That means lighting, well pump, septic or sewer lift pump, refrigeration, security, internet, and often a gate opener or two. On a large custom estate, a single battery rarely covers everything. We run a load calc off your actual subpanels and tell you exactly what one Powerwall or one IQ Battery stack will carry through a 36-hour PSPS event, and what it won’t. No sunlight-hours fluff, just the wattage math.

Battery Retrofit for Existing Solar
This is the most common Woodside job. A homeowner put panels up years ago under NEM 2.0, got a good deal, and now wants battery backup. The challenge: many of those older systems are DC-coupled or use inverters that don’t play well with a modern battery. We handle the pairing, the rapid shutdown compliance, and the necessary electrical panel work. A typical retrofit on a 1970s ranch estate off Canada Road runs $13,000 to $17,500 all-in. We’ll tell you if your existing inverter needs to be replaced, and we won’t upsell you into one if it doesn’t.

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 Woodside
We work with Tesla, Enphase, FranklinWH, and SolarEdge equipment daily, and we stock the most common replacement parts and firmware tooling locally so a Woodside service call doesn’t stall while a part ships from a warehouse in Texas. If you already have a FranklinWH aGate and aPower system, we service that. If you have an older SolarEdge storedge setup acting up, we service that too. You don’t need to go back to the original installer, and in many cases the original installer no longer exists. Call us. We’ll come out and diagnose it, and if it’s repairable, we’ll repair it instead of quoting you a full replacement.
Common Solar Battery Storage & Backup Problems We See in Woodside Homes
- Corroded disconnect switches and conduit fittings. The same coastal fog that rolls through the eastern foothills of the Santa Cruz Mountains and suppresses your morning production also sits on exposed electrical fittings. Combined with tannins from oak leaf litter, we see intermittent ground-fault trips on battery disconnect switches in as little as four years. We replace them with stainless or coated hardware rated for exactly this environment.
- Rapid shutdown stress from partial shade. Mature oaks don’t shade a roof evenly. One module in shade while the next one is in full sun causes microinverter systems to cycle rapid shutdown events more frequently than the equipment was really designed for. That cycling stresses the battery charge controller and shortens inverter lifespan. We see this pattern on Woodside hillside lots more than anywhere else in San Mateo County.
- Rodent damage on ground-mounted arrays. On horse properties, ground-mounted arrays in a sunny clearing solve the shade problem but create a new one: rats, mice, and squirrels chewing DC wiring. The resulting arc-fault interruptions drain battery reserve silently, and you don’t find out until a PSPS event hits and the battery is at 40 percent instead of 90. We install metal conduit and rodent-resistant shielding as standard practice on Woodside ground mounts.
- Design review restrictions on battery placement. Woodside’s design review process scrutinizes visible equipment more carefully than most San Mateo County jurisdictions. Wall-mounted batteries on the street-facing side of a home often get flagged. We know where the review board will and won’t approve a battery, a ground array, or a conduit run. We draw the plans accordingly the first time so you’re not resubmitting.
Pricing for Solar Battery Storage & Backup in Woodside, CA
Here’s what Woodside homeowners actually pay, based on the jobs we’ve done in the 94062 ZIP over the last two years.
- Tesla Powerwall 3 (single unit, whole-home backup, Gateway included): $12,000-$15,500 installed
- Enphase IQ Battery 5P (single unit): $11,500-$13,500 installed
- Enphase IQ Battery 5P (two or three units): $14,000-$16,500 installed for a pair, up to $21,000 for three
- FranklinWH aPower (whole-home, two aPower units + aGate): $16,000-$19,000 installed
- Battery retrofit for existing solar (including any necessary panel work): $13,000-$17,500 all-in
- Battery replacement or expansion (adding capacity to an existing system): $8,000-$14,000 depending on chemistry and inverter pairing
What moves the number: your main panel’s age and amperage, whether the battery goes on a wall or on a ground pad, how far the conduit run is from your meter, and whether we’re pairing with a 2015-era string inverter that now needs to be replaced. We give you one price, in writing, before we start. The number you see is the number you pay, period. Free estimates, no signature wanted tonight. Call (877) 550-6892 and bring us your PG&E bill. If a salesman needs an answer tonight, the answer is no.
Battery Storage and Woodside’s Heritage Oak Canopy: How We Engineer Around It
Here’s the thing no generic solar company will tell you about Woodside. California’s Solar Shade Control Act, Public Resources Code section 25980, technically protects new solar installations from neighbors’ trees that block the sun. But in Woodside, enforcing that law is a nonstarter. This town’s identity is built on its tree canopy. Heritage oaks, coast live oaks, second-growth redwoods, the whole rural character of Portola Valley Road and the hillside estates below Skyline Boulevard. Nobody is going to sue a neighbor to trim a 400-year-old oak so their panels produce more afternoons. And frankly, nobody should have to.
What that means practically: a surprising number of otherwise ideal estate rooftops in Woodside produce only 60 to 70 percent of what a comparable unshaded roof in Redwood City would generate. The homeowner doesn’t want to cut the trees, and the town doesn’t want them to either. So the math has to change, not the trees.
Our crew recently installed a Tesla Powerwall 3 on a 1970s ranch estate off Mountain Home Road where the existing 9.6 kW rooftop array was producing barely 62 percent of its Redwood City equivalent due to coast live oak shade. We paired the battery with an Enphase IQ System Controller 3 to enable rapid shutdown compliance and whole-home backup, then re-aimed the array’s azimuth to favor afternoon clearing, when the fog burns off and the sun drops below the canopy line. The result: true-up statement credits went from $18 to $74 per month, without touching a single heritage limb. That’s the kind of engineering a template quote never produces.
Before we quote a system size on a Woodside property, we run a shade analysis first. We map your roof or clearing at three points through the year. Then we tell you, straight up, whether your battery will be doing net daily arbitrage under NEM 3.0 or whether it’s purely a backup asset with slower payback. Most Woodside batteries are both, and we size them accordingly. If a ground-mounted array in a sunny clearing is the only viable path forward, we’ll say so. We’ll also tell you the design review board’s likely response before you spend money on plans.
This is what Woodside battery work actually looks like: engineering around 30 to 40 percent shade losses, respecting the town’s aesthetic character, and keeping your oaks where they are. If you want a battery that keeps your wells, your gates, and your refrigeration online through fire season without a chainsaw involved, call (877) 550-6892.
We Also Serve Cities Near Woodside
If you’re in Menlo Park, Redwood City, San Carlos, or Atherton, we handle solar battery storage and backup there too. The shade math is different, the fog patterns shift, and the design review rules change block by block, but the same crew and the same straight answers apply. One call covers it.
Serving Woodside, CA - Our Local Coverage Area
We’re based in the Woodside 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 Woodside
Your battery’s recharge rate during a PSPS event depends entirely on how much sun your array is actually producing under shade. On a heavily canopied Woodside lot, a rooftop array that outputs 6 kW on an unshaded Redwood City roof may only put out 3.5 to 4 kW, which means a Powerwall that would recharge in 3 hours takes 5 to 6. We account for this in the original sizing and in the system programming, so your battery draws down in a controlled way instead of running out on day two of an outage. Call (877) 550-6892 and we’ll run your specific shade numbers.
Yes, but the battery has to do more work than it would on an unshaded Menlo Park roof. NEM 3.0 pays far less for exported solar, so a Woodside system that produces only 65 percent of its nameplate under shade needs the battery absorbing and time-shifting every usable kilowatt. We size the battery to your actual shaded production, not your roof’s theoretical capacity. Payback is slower than an unshaded site, but it still works, and we’ll show you the year-25 output forecast before you sign anything.
Yes, and more than in most San Mateo County jurisdictions. Woodside’s design review process protects the town’s rural aesthetic, which means street-facing battery walls, visible conduit runs, and ground arrays in prominent sightlines often get flagged or denied. We’ve navigated the review board enough to know what gets approved and what doesn’t, and we draw plans accordingly the first time. If your preferred location is likely to be rejected, we’ll tell you in the quote phase, not after you’ve paid for permits.
It depends on the inverter’s age and model. A 2015-era string inverter or an older SolarEdge storedge unit usually cannot meet current rapid shutdown requirements when paired with a new battery, especially on a wooded lot where partial shade causes frequent shutdown cycling. In those cases we replace the inverter or add compliant module-level electronics. If your inverter is a 2019 or newer Enphase or SolarEdge model, it often pairs directly with the matching battery without a full swap. We’ll tell you which camp you’re in during the estimate.
Woodside’s position in the eastern foothills means Pacific fog funnels through lower passes and suppresses morning production, especially on north-facing slopes and in heavily canopied draws. Afternoon clearing is typical, but net annual production runs 10 to 15 percent below the Santa Clara Valley on a typical Woodside lot, before you even factor in tree shade. A battery can’t manufacture sunlight, but it can shift production from afternoon peaks into evening and overnight use, which is where NEM 3.0 math actually favors you. We model the fog pattern into your offset forecast. Call (877) 550-6892 for your exact numbers, and bring a bill.
If you live in Woodside and you want a battery system that accounts for the oaks, the fog, the design review board, and your actual PG&E bill rather than a brochure’s assumptions, call (877) 550-6892 today. Free estimate, honest math, no pressure. Take two weeks to think about it. The price will be the same. We’re proud to serve the communities of Woodside with solar that’s built to last, grounded in the L.O.C.A.L. values that govern every job: Local roots, On time, Community first, Accountable, Loyal.
Written by Gus Petrakis, Owner at Gus’s Solar, serving the San Francisco Bay Area since 2011.






Before
After
Before
After
Before
After