ChargeHQ is closing on September 7, 2026 — and its replacement, Amber for EVs, is only available in Australia. If you're in the US, Sundial EV picks up right where ChargeHQ leaves off: automatic Tesla charging from your excess rooftop solar, no extra hardware, set-and-forget.
ChargeHQ announced it will close on September 7, 2026. It was a genuinely great product and a pioneer in solar EV charging — respect to the team for what they built. Here's what the closure means if you're a US user:
That last point is why this page exists. If you invested in solar and an EV so you could drive on sunshine, you shouldn't have to go back to charging blind off the grid.
Sundial EV does the core job ChargeHQ did — continuously matching your Tesla's charging rate to your home's excess solar production — with one big difference: it's designed from the ground up for US utilities and NEM 3.0 net billing.
Under NEM 3.0 in California (and similar net billing tariffs spreading across the country), exported solar earns you a fraction of what grid power costs. Every kilowatt-hour you push into your car instead of the grid is worth real money. Sundial's charging logic — and its savings estimator — are built around exactly that math.
Link your Tesla and your solar/battery system. No extra hardware, no installer.
It monitors your solar production and household consumption in real time.
Charge rate ramps up when the sun is strong and pauses when clouds roll through or the dishwasher kicks on.
Set a minimum charge target and Sundial tops up from the grid on your cheapest hours.
| Feature | ChargeHQ | Sundial EV |
|---|---|---|
| Available after Sept 7, 2026 | ✕ Shutting down | ✓ Active and growing |
| US focus | Australia-first, US supported | ✓ Built for the US market |
| NEM 3.0 / net billing optimization | ✕ | ✓ Core feature, incl. savings estimator |
| Tesla vehicles | ✓ | ✓ Any charger (control via the vehicle) |
| Tesla Powerwall | ✓ | ✓ Battery-aware charging priority |
| Tesla Solar (no Powerwall) | ✓ | ✓ |
| SolarEdge | ✓ | ✓ |
| Enphase | ✓ | ✓ |
| Other inverters (Fronius, SMA, Sungrow…) | ✓ | ◷ On the roadmap — join the waitlist |
| Non-Tesla EVs / OCPP wall chargers | ✓ | ◷ On the roadmap — join the waitlist |
| Price | Paid subscription | ✓ Free (today, in full) |
| iOS app | ✓ | ✓ Native app on the App Store |
We believe in honest comparisons: if your setup is in the ◷ rows, Sundial can't replace ChargeHQ for you yet. Join the waitlist below and we'll email you the moment your hardware is supported — your interest directly shapes what we build next.
Hi, I'm Brian — I built Sundial EV because I'm exactly the kind of person ChargeHQ served: a Tesla and Powerwall owner in California who watched NEM 3.0 turn exported solar into pennies and thought, my car should be soaking this up automatically.
ChargeHQ proved this category matters, and I'm sorry to see it go. If you're one of the US users it's leaving behind, I'd genuinely love to have you. Sundial is free, I ship improvements constantly, and when you email support, you're emailing me. If your hardware isn't supported yet, tell me — ChargeHQ users' requests are at the top of my roadmap right now.
— Brian, Founder of Sundial EV
Email us your setup — inverter brand, EV, and charger — and we'll notify you the moment it's supported. ChargeHQ users are directly driving our integration roadmap, so tell us what you've got.
Email your setup →ChargeHQ's sunset doesn't have to be yours.
✓ Free · no credit card · cancel in-app