No. A standard grid-tied solar system switches off when the grid fails — that shutdown is a built-in safety duty, not a fault — so the panels deliver nothing and the charger has no supply to pass to the car. The only exception is a system designed from the start with backup capability, where chosen circuits stay live and the charger may be one of them.
Key Takeaways
- A standard grid-tied solar system shuts down in a power cut by design, so it cannot charge your car.
- Only systems built with backup capability keep chosen circuits live — and the charger is included only if it was designed in.
- The charge that survives an outage is the energy already in the car’s battery.
- Outage charging is a solar-and-battery design question for your installer, not a charger setting.
Why the Panels Switch Off
A grid-tied inverter is required to stop exporting power the moment the grid goes down. This is the anti-islanding duty: if homes kept feeding power into dead lines, repair crews would be working on cables they reasonably believe are safe. The inverter also runs in step with the grid signal, so without the grid it has nothing to follow. The result surprises many owners: full sun, a working array, and no electricity in the house. Your charger is one more load on that dead supply. Systems that can feed a home during an outage do it through matched equipment and transfer gear, as our explainer on bidirectional charging sets out.
What Happens to Each Kind of System
| Your system | During a power cut | Can the car charge? |
|---|---|---|
| Standard grid-tied solar, no battery | The inverter shuts down; the house, charger included, has no power | No — charging resumes when the grid returns |
| Grid-tied solar with a home battery and backup circuits | The battery feeds the circuits chosen at design time; the rest of the house stays off | Only if the charger’s circuit was put on the backed-up side when the system was designed |
| Off-grid solar and battery system | The home runs independently of the grid, as it always does | Yes, within whatever capacity the system was sized for — your installer’s design decides |
| Panels plus a portable generator | The panels still shut down; the generator is a separate supply question | Only through equipment an electrician has installed for that purpose — never an improvised connection |
The Exception Is a Design, Not a Setting
Backup capability cannot be switched on later in an app. It is chosen when the system is designed: transfer equipment separates the backed-up circuits from the street, and the installer decides which circuits those are. A car charger is one of the largest loads in a home, so many backup designs leave it off the emergency circuits and keep stored energy for lights, refrigeration and communications. If charging through an outage matters to you, that conversation belongs with your solar or battery installer at design or upgrade time.
What to Do Instead
- Treat the car’s battery as the asset. The energy already in the car when the cut begins is the charge you have.
- Expect a pause, not a problem. A session interrupted by a cut ends safely; when power returns, the charger reboots and you start a fresh session.
- Plan the upgrade, if you need one. Repeated outages are a system design question — backup circuits, storage and transfer equipment — not a charger feature to shop for.
- Never improvise a backfeed. Running power into a home through ad-hoc cables defeats the anti-islanding protection and is dangerous.
Where EVDANCE Chargers Fit
EVDANCE chargers are one-way, grid-powered units, and no EVDANCE listing states a solar mode, surplus sensing or backup capability. A wall charger such as the EV-ACT5006T charges from the home supply, solar hours included, and stops with everything else when that supply fails. The residential charging range is described with its stated specifications only; if outage charging is a requirement, have your installer design for it and confirm the charger’s role in writing via our contact page.
Frequently Asked Questions
My panels produce in daylight — why is the house dark in a daytime cut?
Because a grid-tied inverter must stop when the grid fails — protecting the crews repairing the fault — and it has no grid signal to run in step with. Sunshine alone does not change that.
Can a home battery charge my car during a cut?
Only if the system was designed with backup circuits and the charger’s circuit was included. Many designs exclude the charger deliberately, because car charging drains stored energy fast.
Will the cut damage my charger or my car?
No. Losing supply mid-session is a designed-for event: charging stops and the session closes safely. The cost is a part-finished charge, not damage.
Related Reading
- Solar Panels and EV Chargers: How to Charge Your Car With Sunshine
- Bidirectional Charging Explained: V2L, V2H and V2G
- Smart Charging and Time-of-Use Tariffs: How Scheduling Cuts EV Charging Costs
