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Solar Savings for a $150/Month Electric Bill

See how solar panels handle your electricity costs — no signup required

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A $150 monthly electric bill means you're paying roughly $$1,800 per year to your utility — money that could be building equity in a solar system instead. This calculator estimates the system size needed to offset a $150/month bill, how quickly it pays back, and how much you'd save over 25 years. No email or phone number required.

$150

Monthly Bill

$1,800

Est. Annual Cost

80–100%

Potential Offset

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Solar for a $150/Month Bill — FAQ

How many solar panels does the average home need?▾
Most US homes need between 15 and 30 panels (6–12 kW system). The exact number depends on your electricity usage, your state's sun hours, roof orientation, and the wattage of the panels you choose. Enter your bill or usage above to get a personalized estimate.
Do solar panels increase home value?▾
Yes. Lawrence Berkeley National Lab found that solar homes sell for an average of $15,000 more than comparable non-solar homes. The value premium varies by market — it's higher in states with high electricity rates and strong solar markets. Buyers increasingly see owned solar systems as an asset, not a liability.
What are my options for financing solar panels?▾
The main options are: (1) Cash purchase — best ROI, you get the full ITC. (2) Solar loan — low-rate loans from installers, Sungage, GreenSky, or your credit union allow ownership with no upfront cost. You still get the ITC. (3) HELOC — if you have home equity. (4) Solar lease/PPA — no ownership, no ITC, lower savings but zero upfront. (5) PACE financing — property-assessed loans available in some states.
Should I buy or lease solar panels?▾
Buying outright (or with a solar loan) delivers the best long-term value because you own the system and claim the 30% ITC yourself. Solar leases and PPAs require no upfront cost but typically provide smaller monthly savings, no tax credit, and can complicate home sales. If you can afford to buy (including via a solar loan), ownership almost always wins financially.
How does shading affect solar panel performance?▾
Even partial shading can significantly reduce output. Traditional string inverters cause the whole string to underperform if one panel is shaded. Microinverters and DC optimizers mitigate this by allowing each panel to operate independently. If your roof has trees or chimneys that cause partial shading, request microinverters in your quotes.

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Disclaimer: Calculator assumes national average electricity rates and sun hours. Select your state above for location-specific estimates. Not financial advice.