Electric Car and a Home in 2025?

Electric Car and a Home in 2025?

Jul 2, 2025 - 12:20
 2

With more homeowners switching to electric vehicles (EVs) and solar energy in 2025, many are asking:
"Is a 6 kW solar system powerful enough to charge an EV and meet my home's energy needs?"

In this guide, well break down whether a 6 kW solar system provides sufficient power for both your household and an electric carand whether upgrading to a 6.6 kW solar system might be worth considering.


? How Much Power Does a 6 kW Solar System Produce?

A 6 kW solar system generates about 2025 kWh per day, depending on your location, panel efficiency, and sunlight exposure.

Yearly Output:

  • 6 kW system: ~7,3009,000 kWh annually

This can cover a typical household's usagewithout electric vehicle chargingif average consumption is around 600750 kWh/month.


? How Much Energy Does an Electric Car Use?

On average, electric vehicles require around 1520 kWh per 100 km.
If you drive:

  • 30 km/day ? Youll need about 56 kWh/day

  • 1,000 km/month ? ~150200 kWh/month

So, adding an EV to your home energy use can significantly increase your monthly power needs.


? Can a 6 kW Solar System Handle Both?

Lets break it down:

Usage Type Daily kWh Needed
Home (average) 1520 kWh
Electric Car (30 km) 56 kWh
Total 2026 kWh

A 6 kW solar system can just about cover this usage under ideal sunlight conditions. But any cloudy days, winter months, or above-average driving could push your consumption beyond the systems capacity.


? Should You Consider a 6.6 kW Solar System Instead?

A 6.6 kW solar system offers 10% more output than a 6 kW system. Thats an extra 23 kWh per day, or nearly 1,000 extra kWh annually.

This extra buffer helps:

  • Cover higher EV mileage

  • Offset cloudy days or high summer A/C usage

  • Future-proof your energy needs


?? Real-Life Scenario

Example:

  • Home uses ~600 kWh/month

  • EV adds ~200 kWh/month

  • Total: ~800 kWh/month

System Comparison:

System Size Monthly Output Suitable?
6 kW solar system 750800 kWh ? Possible (tight fit)
6.6 kW solar system 825880 kWh ? More Reliable

If you dont want to rely on the grid at all, the 6.6 kW solar system gives you more peace of mind.


? Tip: Add Battery Storage

Pairing your 6 kW solar system or 6.6 kW solar system with a home battery (like a Tesla Powerwall or Enphase battery) allows you to:

  • Store excess solar for EV charging at night

  • Reduce reliance on peak grid electricity

  • Ensure backup power during outages


? Final Thoughts

So, is a 6 kW solar system enough?

  • ? Yes, if your home is energy-efficient and you drive moderately

  • ?? Maybe not, if your EV usage is high or you want more power stability

  • ? Consider a 6.6 kW solar system for added energy, better ROI, and less grid dependency


Summary Table

System Size Daily Output Best For
6 kW solar system 2025 kWh Standard home + light EV usage
6.6 kW solar system 2228 kWh Home + frequent EV driving