Redde Fuel-Cell Backup Generator for Your Tesla Powerwall
A quiet, virtually maintenance-free fuel cell that pairs with your home battery — like the Tesla Powerwall — to keep your home powered for days, not hours. No generator roar. No weekly exercising. No exhaust.
What is Redde?
Redde is a home fuel cell — the same category of clean electrochemical technology that powered Apollo and the Space Shuttle, now sized for your wall. Instead of burning fuel loudly like a standby generator, it quietly converts natural gas or propane into electricity and uses it to keep your home battery topped off during an outage.
Paired with a battery system such as the Tesla Powerwall, Redde delivers long-duration backup power: the battery handles the instant transition when the grid drops, and Redde steps in only when the battery needs a recharge — generating 30+ kWh per day, rain or shine, day or night. As a Colorado installer, Mini-Splits by Joseph designs and installs the complete system for your home.
How It Works
Watches & waits
Monitors your battery 24/7. If it doesn’t need a top-off, Redde stays off.
Grid goes down
Your battery handles the transition instantly — the lights don’t even flicker.
Battery needs a top-off
When charge dips below a set point, Redde quietly turns on and recharges it.
Home stays powered
Lights, appliances, HVAC and WiFi keep running through the outage.
Grid returns
The system switches back automatically. No action required from you.
Cleaner & Quieter Than a Standby Generator
| Feature | Redde + Home Battery | Standby Generator |
|---|---|---|
| Runtime during an outage | Days to weeks* | ~6 days on a 250-gal propane tank |
| Noise | Whisper-quiet, under 42 dBA | Loud engine — often an HOA issue |
| Maintenance | Virtually none | Weekly exercise + annual service |
| Emissions | No engine exhaust | Combustion exhaust |
| Footprint | Compact, wall-mountable | Large ground pad |
| Warranty | 10-year standard | Varies |
*Runtime depends on fuel supply and home load. Natural gas provides effectively unlimited runtime; propane runtime depends on tank size. We size the system to your home during a free consultation.
Why Colorado Homeowners Choose Redde
🔋 Long-duration resilience
Keeps your battery charged through multi-day outages, wildfire shutoffs, and cloudy stretches when solar can’t keep up.
🔊 Quieter than a fridge
Under 42 dBA and HOA-friendly — most neighbors won’t even know it’s running.
🛠️ Nearly maintenance-free
No weekly generator exercising and no annual service routine to remember.
⚡ Pairs with your battery
Works with most major home battery platforms, including the Tesla Powerwall.
🌿 Clean & safe
No engine exhaust and clean operation — a healthier choice near the home.
⏳ Automatic
Runs only when needed and powers down on its own. No switches to flip.
A Perfect Complement to Solar & Battery
Solar and a battery can take your home off the grid — Redde keeps you there. When days of clouds or a long outage would normally drain your battery, Redde recharges it using fuel you already have on site, so reliable power doesn’t depend on the weather or a loud standby generator.
Get a Free Backup-Power AssessmentFrequently Asked Questions
What fuel does Redde run on?
Natural gas or propane — typically the same fuel supply you may already have at the home. Natural gas offers effectively unlimited runtime; propane runtime depends on your tank size.
Do I need a battery to use Redde?
Yes. Redde is designed to pair with a home battery (such as the Tesla Powerwall). The battery delivers instant backup, and Redde keeps it charged for long-duration outages. We can install both together.
How is it different from a standby generator?
A standby generator runs a combustion engine — loud, with exhaust and regular maintenance. Redde is a fuel cell: whisper-quiet (under 42 dBA), no engine exhaust, virtually maintenance-free, and it only runs when your battery needs a top-off.
How much power does it produce?
Redde generates 30+ kWh per day to recharge your battery — enough to keep a typical home’s lights, appliances, HVAC and WiFi running through an extended outage. We’ll confirm the right configuration for your home.
How much does it cost to install?
Every home is different, so we provide pricing after a quick assessment of your electrical panel, battery, and backup goals. Book a free consultation and we’ll give you exact numbers.
Built for Your Tesla Powerwall
Redde requires a home battery to work — it doesn’t power the house directly. Instead, it keeps your Tesla Powerwall (or compatible battery) recharged so the battery can run your home through long outages. Don’t have a Powerwall yet? We install the battery and the Redde fuel cell together as one complete backup system, sized for your Denver-area home.
Backup Power for Commercial Buildings
Redde isn’t just for homes. The units are designed to be stacked and scaled — for larger commercial and multi-unit buildings we can install multiple fuel cells together (double-stacked, up to roughly 10–15 units) to back up much bigger loads. That makes it a clean, quiet alternative to a large diesel standby generator for offices, retail, restaurants, medical, and multi-family properties across the Denver metro. Paired with a commercial battery system, your building stays powered through extended outages.
Discuss a Commercial ProjectWhere We Install — Denver Metro & the Foothills
Mini-Splits by Joseph installs and services Redde fuel-cell backup power within about 40 minutes of downtown Denver — across the metro and into the foothills, with Evergreen as our furthest point.
Service area includes: Denver, Lakewood, Wheat Ridge, Edgewater, Golden, Arvada, Westminster, Littleton, Englewood, Centennial, Greenwood Village, Cherry Hills Village, Highlands Ranch, Aurora, Morrison, Ken Caryl, Genesee, Lookout Mountain, and Evergreen.
Never lose power again
Mini-Splits by Joseph installs Redde fuel-cell backup across Denver & the Colorado Front Range.
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