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Your solar is being wasted across the day. Tesphase puts it to work — automatically managing your EV, Nest thermostat, and more integrations to come. No hardware, no installer, five-minute setup.
What you get
back in your pocket, every month
savings
to set up, from your phone
setup
hardware, installers, or site visits
cost to start
Since NEM 3.0, exported solar earns roughly a quarter of what you pay for power. At 1pm your panels overproduce. At 6pm your EV charges from the grid at full price. Tesphase fixes that mismatch — automatically.
Connect
Sign in once to your solar system and your EV. Five minutes, from your phone — no installer, no hardware, and we never see your passwords.
We optimize
Tesphase watches your solar and your home's usage live, then sends the extra to your EV — timed around your utility's rates and gentle on your battery.
You save
Most homes get $100–300 back every month. Your dashboard shows exactly how much solar you kept and what it saved you, week by week.
The dashboard · a real California home
Your Tesphase impact
Since you joined
812.9kWh
Solar sent to your car
$297.13
Saved over 29 sessions
2,845mi
Miles on sunlight
82%
Solar self-use
Solar production
5.9kW
Home consumption
5.5kW
Net excess
462W
Charging amps
19A
Saved this month
$153.65
451.9 kWh charged · 15 sessions
3.0 kWh of solar curtailed today — the surplus Tesphase is working to capture next.
Power flow — last 24 hours
Questions about Tesphase? Send us a message — we'll get back to you within two business days.