SundialEV vs ampee

Your rooftop solar is worth far more in your car than sold back to the grid. SundialEV automatically charges your EV from surplus solar instead of exporting it for pennies — set it once and forget it. Under "Net billing" electric plans (like NEM 3.0), utilities pay you a few cents for the solar you export, then charge you full price for the same energy at night. Sundial closes that gap: when your panels make more than your home needs, it sends the surplus to your car instead of the grid, saving most users on their electricity bills. • Set-and-forget — pick a charging floor and a battery reserve once; Sundial does the rest • Works with every Tesla model — and with any EV brand via an OCPP smart wall charger, like the Wallbox Pulsar Plus • Reads your production from Tesla, SolarEdge, Enphase solar systems (+ more now) • Coordinates with your Powerwall — you choose how full it gets before the car charges • Tops up on cheap off-peak power on your schedule, and avoids peak-rate windows when solar isn't available • Need range right now? One tap starts a full-speed charge — solar takes back over when it's done • No new hardware — works with the solar, battery, car, and charger you already own

ampee charges your electric car with your own solar power - automatically. If you have solar panels and an EV, ampee makes sure your car soaks up your surplus sunshine instead of exporting it cheaply to the grid or charging from expensive grid power. It watches your solar production in real time and continuously adjusts your car's charging speed to match the surplus - no manual tweaking, no schedules to babysit. HOW IT WORKS - Connect your vehicle: Tesla, plus Rivian, Polestar, Ford, Volvo, and Lucid - Connect your solar system or energy monitor: Enphase, SolarEdge, Fronius, Solarman, Growatt, Tesla, Sense, or Emporia - Plug in - ampee reads your surplus every 30 seconds and sets the charge rate to use it FEATURES - Solar mode: charge only on excess solar, automatically - Boost, Overnight, and Charge-to-% commands for a quick or full top-up - Departure charging: reach the level you want by the time you leave - Home-battery priority: fill your home battery first, then the car - Charge and battery limits, schedules, and export-limit awareness - Live dashboard of solar, house, car, and available power - Session history and savings: see how much solar you captured - Notifications that explain why charging started, paused, or resumed - "Ask ampee" in-app assistant for instant help ampee is free during beta. Charge on sunshine.