Solar Backup Batteries

A solar energy backup battery stores excess electricity generated by your home’s solar panels, so you can use it when the sun isn’t shining. Instead of sending unused energy back to the grid, the battery keeps it on-site for nighttime use, cloudy days, or during power outages.

Benefits for Homeowners:

#1 Energy Independence

Reduce reliance on the grid and protect against rising utility costs.

#2 Backup Power

Keep lights, appliances, and critical devices running during outages.

#3 Maximized Solar Use

Store surplus daytime energy for evening and overnight needs.

#4 Environmental Impact

Use more clean, renewable power and reduce your carbon footprint.

How It Works:

Solar panels generate electricity during the day.

Extra power charges the battery.

The stored energy powers your home when solar production is low.

Key Considerations Before Installing:

#1 Battery Capacity

Choose a size that fits your household’s energy usage.

#2 Compatibility

Ensure your battery system integrates with your solar panels and inverter.

#3 Cost & Incentives

Look for rebates, tax credits, and financing options.

#4 Warranty & Lifespan

Most batteries last 10–15 years with proper maintenance.

The City of Newton’s 19 solar projects save the City and Newton Public Schools approximately $660,000 in electricity costs annually!

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Contact Green Newton’s Energy Advocate

Email armela@greennewton.org or click the button to schedule a free 30 min meeting with Armela to answer all your home energy questions!

Download the Green Pages

A local directory of recommended businesses that can help make your home energy efficient including: solar, heat pump, insulation and more!

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