Built for Tesla + rooftop solar homes
Never Waste Sunlight Again
Early access for US solar homeowners. No App Store or Play Store install yet.
Sense
SolarEdge
Fronius
Solarman
Powerwall data
ampee
Live
32A → 18A → 27A
Charge rate follows excess solar every 30s
Excess solar
6.8 kW
Avoided export
$187
Export credit ~6¢/kWh
Retail power ~25¢/kWh
The NEM 3.0 problem
Your solar is worth more in your Tesla than on the grid.
In California, exported solar can earn roughly $0.06/kWh while imported electricity costs around $0.25/kWh. Tesla’s native Charge on Solar helps — but only if you also bought a Powerwall.
~$200/mo
Potential value lost by exporting unused solar instead of charging directly from it.
Export ~6¢
Retail ~25¢
Event-driven solar charging
ampee reacts while your roof changes.
Tesla Fleet Telemetry lets ampee respond to charging changes as events, while solar production is checked frequently enough to keep charge current aligned to excess generation.
Connect Tesla + solar
Link your Tesla and a supported solar data source: Sense, SolarEdge, Fronius, Solarman, or Powerwall data.
Monitor excess in real time
ampee watches production, home usage, and charging state so it knows when solar would otherwise leave the house.
Adjust every 30s
The car ramps up when solar is abundant and backs off when clouds, appliances, or grid draw change the picture.
Built for the messy real world
Solar-aware charging without the battery buy-in.
ampee is designed around existing solar households — not only the small slice that already paid for home storage.
Real-time Fleet Telemetry
Event-driven charging status, not slow polling loops that miss what’s happening at the car.
Multi-inverter support
Connect Sense, SolarEdge, Fronius, Solarman, or existing Powerwall data as your solar source.
Departure charging
Tell ampee when you need the car ready, then let solar do as much of the work as possible.
Forecast-aware charging
Sunny afternoon ahead? ampee can bias charging toward cheaper self-consumption windows.
Savings dashboard
See solar kWh captured, export value avoided, and how much charging shifted into your roof’s output.
Push notifications
Know when solar charging starts, pauses, catches a cloud bank, or finishes before departure.
Stop exporting cheap kWh
A battery-sized behavior upgrade — without the battery-sized purchase.
If your Tesla sits at home during sunny hours, ampee helps pull value forward: less low-credit grid export, more self-consumed solar, and fewer expensive retail kWh later.
~$200/mo
Typical export/self-consumption gap for affected homes
$10–13k
Powerwall purchase not required
Compared to the alternatives
The Powerwall-free path to smarter Tesla charging.
ampee
ChargeHQ
ev.energy
Tesla native
Questions
What solar Tesla owners ask first.
Do I need a Powerwall?
No. That’s the point: ampee brings solar-matched Tesla charging to solar households that do not have a home battery.
Which solar systems are supported?
The early access plan includes Sense, SolarEdge, Fronius, Solarman, and Powerwall data as supported solar inputs.
Is changing the charge rate safe for the battery?
ampee works within Tesla’s supported charging controls. It adjusts current rather than forcing charging outside the car’s normal limits.
What will ampee cost?
Simple monthly pricing — details at launch. The goal is to make the savings case obvious for solar Tesla households.
When does it launch?
ampee is not live in the App Store or Play Store yet. Join the waitlist to get early access updates.