⏰ ChargeHQ shuts down September 7, 2026 — US users have no official migration path. Here's how to switch in 10 minutes (and download your charging history before it's gone).
The ChargeHQ alternative · built for the US

The ChargeHQ Alternative Built for the US

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 charging from your excess rooftop solar — through your Tesla, or any EV through your OCPP wall charger — no extra hardware, set-and-forget.

Start free on web Check your setup compatibility →
What's happening

ChargeHQ is shutting down — here's what US users need to know

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.

The replacement

Sundial EV: smart solar charging, built in the US for US utility rates

Sundial EV does the core job ChargeHQ did — continuously matching your EV's charging rate, via your Tesla or via any OCPP wall charger, 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.

01

Connect in ~10 minutes

Link your solar/battery system and your car — Tesla directly, or any EV via your OCPP wall charger. No extra hardware, no installer.

02

Sundial watches your home

It monitors your solar production and household consumption in real time.

03

Your car follows the sun

Charge rate ramps up when the sun is strong and pauses when clouds roll through or the dishwasher kicks on.

04

Never wake up short

Set a minimum charge target and Sundial tops up from the grid on your cheapest hours.

Sundial dashboard showing projected monthly savings and the car charging on solar with live kilowatt flow for solar, battery, home, grid, and car Hourly chart of solar production split between EV, home, and battery with a forecast curve, above monthly savings trends

See how much you'd save — free savings estimator →

Head to head

ChargeHQ vs. Sundial EV for US users

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)
Non-Tesla EVs / OCPP wall chargers ✓ ✓ Previously Tesla-only — OCPP support shipped July 2026 (Wallbox, Emporia, ChargePoint), with variable-power solar charging · native Ford battery level (Mach-E, Lightning, E-Transit)
Tesla Powerwall ✓ ✓ Battery-aware charging priority
Tesla Solar (no Powerwall) ✓ ✓
SolarEdge ✓ ✓
Enphase ✓ ✓
Charge Now boost ✓ ✓ With optional limits — stop after +2 hrs or +25 kWh
Scheduled grid top-up ✓ ✓ Weekly Grid Top-Up — set your overnight window, Sundial catches the car up when solar fell short
Live energy status card ✓ ✓ Solar, battery, home, grid, and car — live kilowatts on one card
Avoid-hours + sell-at-peak windows ✕ ✓ Pause grid charging at peak rates, and pause solar charging so surplus exports during your best sell-rate hours
Push your own solar data ✓ ✓ Same payload — repoint your existing ChargeHQ push script at Sundial and swap the key
Other inverters (Fronius, SMA, Sungrow…) ✓ ✓ Works today via the push API — you run a small local script. Native integrations still on the roadmap.
Price Paid subscription ✓ Free (today, in full)
Mobile app ✓ ✓ Native app — App Store & Google Play

We believe in honest comparisons. As of August 2026, the two rows ChargeHQ users asked about most are both covered: OCPP wall charger support has shipped — Wallbox, Emporia, ChargePoint — and an inverter we don't integrate natively is no longer a dead end, because the push API will charge from readings you send us yourself. The honest caveat on that last one: it means running a small script on your network, where ChargeHQ integrated those brands natively. Want yours supported natively, no script required? Email me below and it goes straight on the roadmap.

Migration guide

How to switch from ChargeHQ to Sundial in 5 steps

  1. Download your ChargeHQ charging history first.
    Do this before September 7 — ChargeHQ has confirmed the data won't be retrievable after closure.
  2. Disconnect ChargeHQ from your Tesla account.
    Or simply let the service lapse, and confirm your vehicle's charging settings are back to defaults.
  3. Download Sundial EV and sign in.
    Grab it from the App Store or Google Play, or start free on the web at sundialev.com.
  4. Connect your solar system and your car — or charger.
    Tesla, SolarEdge, and Enphase connections are guided in-app. Non-Tesla EV? Point your OCPP wall charger (Wallbox, Emporia, ChargePoint) at Sundial from its settings app instead — no car account needed. Already pushing solar data to ChargeHQ from Home Assistant or a local script? Point it at Sundial: the payload is the same, so you change only the URL and the API key.
  5. Set your charge range and avoid-hours.
    Pick your grid minimum and solar target, then set avoid-hours to match your TOU plan's peak window (say, 4–9 PM). The sun takes it from there.

Start your switch — free on web

A note from the founder

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.

One update since I first published this page: back then, non-Tesla EVs and OCPP chargers were "on the roadmap." ChargeHQ users emailed about it more than anything else — so I built it. OCPP wall charger support has shipped — Wallbox, Emporia, ChargePoint, and other OCPP chargers now work with any EV brand, with variable-power solar charging on both paths.

Two more since: a push API that speaks ChargeHQ's own JSON, so an existing push script needs a new URL and key and nothing else — and native Ford battery level for Mach-E, Lightning, and E-Transit owners running an OCPP charger, so the car charges to a real target instead of a timer.

— Brian, Founder of Sundial EV

Have an OCPP wall charger? You're covered.

OCPP support is live — Wallbox Pulsar Plus is our most-tested charger, with Emporia, ChargePoint, and other OCPP-compatible models supported. Not sure about yours? Email your setup (charger brand + model, EV, inverter, utility) and I'll confirm before you switch.

Hardware we don't integrate natively yet — a Fronius, SMA, or Sungrow inverter? You may already be covered: if you can read it on your own network, our push API takes those readings and charges from them like a native connection. Email me your setup either way — ChargeHQ users are directly driving the native-integration roadmap.

Email your setup →
FAQ

Frequently asked questions

Is Sundial EV a replacement for ChargeHQ?
Yes. US Tesla owners with Tesla Powerwall, Tesla Solar, SolarEdge, or Enphase systems are covered directly — and non-Tesla EVs work through OCPP wall chargers (Wallbox, Emporia, ChargePoint, and others), the same charger-side control ChargeHQ offered. It shipped in July 2026. Support for additional inverters is on the roadmap.
When does ChargeHQ shut down?
ChargeHQ closes on September 7, 2026. Users should download their charging history before that date, as data won't be retrievable afterward.
Does Sundial EV work in the United States?
Yes — Sundial is built in California specifically for the US market, including utility tariff data across multiple states and optimization for NEM 3.0 net billing.
How much does Sundial EV cost?
Sundial EV is currently free, with all features included. A paid tier may be introduced in the future, and early users — including former ChargeHQ users — will be taken care of.
What hardware do I need?
One of two paths: (1) a Tesla vehicle — Sundial controls charging through the car, so any charger works, including the Tesla Wall Connector and Mobile Connector; or (2) any EV plus an OCPP-compatible wall charger (Wallbox Pulsar Plus, Emporia, ChargePoint, and others). Either way, you'll also connect a solar source: Tesla Powerwall, Tesla Solar, SolarEdge, or Enphase.
Can I push my own solar data like I did with ChargeHQ?
Yes — that's exactly why our push endpoint mirrors ChargeHQ's. Mint a key in the app, change the URL and the key in your existing script, and you're done: same JSON body, same sign conventions. It's how Enphase local-mode, Home Assistant, and DIY setups run on Sundial, and it's part of the free tier. Full format on the push API page.
Can Sundial import my ChargeHQ charging history?
Not yet, but we recommend downloading your ChargeHQ data before September 7 so you keep your records. We're evaluating an import feature — join the waitlist to be notified.
Does Sundial work outside California?
Yes. Solar-following charging works anywhere in the US. Our tariff database currently covers utilities in CA, NV, AZ, ID, UT, and HI for savings estimates, with more states coming.
I don't have a Tesla — can I use Sundial?
Yes. If your wall charger speaks OCPP (Wallbox Pulsar Plus, Emporia, ChargePoint, and others), Sundial manages charging at the charger, so any EV brand works — no car account needed. Not sure about your model? Email your setup and I'll confirm.

Keep charging on sunshine

ChargeHQ's sunset doesn't have to be yours.

Start free on web Estimate your net-billing savings →

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