Plan home electricity after adding an EV
Solar + EV Calculator
Estimate the extra solar capacity and roof area associated with EV charging, alongside current household demand.
Smart result
Your home + EV solar estimate will appear here
The calculator separates existing home demand from the extra grid energy needed to charge an EV.
Understand the calculation
EV grid use is added to existing home consumption before solar capacity is estimated. Solar output depends on resource, weather, shading, orientation and system losses, so the result uses a transparent general planning assumption.
Results are planning estimates. Real vehicle use, tariffs, charging conditions and solar production vary.
Frequently asked questions
How much extra solar is required for an EV?+
It depends on monthly driving, EV efficiency, charging losses and expected solar generation per kW.
Can I charge my EV entirely from solar?+
Annual generation can offset annual charging use, but charging time, export rules, weather and storage affect direct solar charging.
What if I already have rooftop solar?+
Enter its capacity and the calculator shows the remaining estimated capacity requirement.
How much extra roof area is required?+
The result applies a configurable roof-area range per kW. A site assessment must confirm layout, shading and setbacks.