Wattzup is solar that hangs on your balcony, fence or patio and plugs into a regular outdoor outlet. No roof, no permit and no utility fees. Made for renters, condo owners and anyone tired of their electric bill.
If you can hang a planter and plug in a lamp, you can install Wattzup.
Strap the flexible panels to your railing, fence or stand. They weigh a few pounds each and bend to fit.
~10 minConnect the microinverter and plug the cord into an outdoor GFCI outlet. Your home uses the solar power first.
~2 minOpen the app to see live output, today's savings and your running total. Your meter does the rest.
every day*You need an outdoor GFCI outlet within reach. Don't have one? Our Orange County and LA install crew can add one.
Illustration of a sunny day for an 800 W Classic in Southern California.
Three sizes, all-black flexible panels and the same plug-in setup. Every kit will be UL 3700 safety certified before it ships.
For small balconies and railings
Founding-member pricing announced soon
Reserve the MiniThe sweet spot for apartments and condos
Founding-member pricing announced soon
Reserve the ClassicThe biggest kit California law allows
Founding-member pricing announced soon
Reserve the Max| Compare | Mini 400 W | Classic 800 W | Max 1,200 W |
|---|---|---|---|
| Flexible panels | 2 | 4 | 6 |
| Energy per year* | ≈ 520 kWh | ≈ 1,040 kWh | ≈ 1,560 kWh |
| Savings per year* | ≈ $180 | ≈ $365 | ≈ $545 |
| Railing space | About 6 ft | About 12 ft | About 18 ft, or a fence or yard |
| Best for | Studios, small balconies | Most apartments and condos | Houses, townhomes, big patios |
| Plugs into | One standard 120 V outdoor GFCI outlet. No power strips or extension cords. | ||
*Estimates for a south- or west-facing spot in Southern California: about 1.3 kWh per watt per year at 35¢/kWh. Railing space assumes panels hung side by side. Final panel dimensions will be confirmed before founding pricing opens.
Flexible panels go where rigid ones can't. Face them south or west for the most power.
Pick a kit and tell us about your spot. We'll estimate what it makes and what it saves.
Monthly output based on Southern California sun. Rough estimate only. Your results depend on your exact spot, weather and rate plan.
Rooftop solar is great if you own the roof. Everyone else gets Wattzup.
The Wattzup app connects over Wi-Fi and shows exactly what your panels are doing.
January 1, 2027
“Half of California can't put solar on a roof. We think they should still get to run on sunshine.”
Wattzup is a Southern California company started by people who've spent years building EV charging and clean energy here. We're based in Orange County and we install across OC and LA.
Still curious? Join the waitlist and reply to any email. A real person will answer.
Yes, starting January 1, 2027. California's SB 868 allows certified plug-in solar systems up to 1,200 W to connect through an outlet, with no utility approval or fees. Every Wattzup kit is sized to stay under that limit.
That's who we built it for. Wattzup hangs with straps, so there's no drilling and nothing permanent. Check your lease or HOA rules for anything hung on a balcony, and take it with you when you move.
A standard 120 V outdoor GFCI outlet within reach of your panels. No power strips or extension cords. Don't have one? Our Orange County and LA install crew can add one.
Your utility may ask you to fill out a short online form with your address and kit details. It's a notice, not an approval, and there's no fee. The Wattzup guide walks you through it.
No. For safety, the microinverter shuts off within seconds when the grid goes down, so it never sends power onto lines crews are working on.
It depends on your sun, shade and electric rate. In Southern California, a south- or west-facing kit makes about 1.3 kWh per watt each year. Try the calculator above with your own numbers.
Panels still work in partial shade, just with less output. East-facing spots produce a bit less than south or west. The calculator shows the difference.
Founding members get the first kits. Every kit will be UL 3700 certified before it ships, and we'll email waitlist members as soon as dates are set.
The first 100 Wattzup customers get founding-member pricing and first shipments.