Solar energy storage systems capture the excess electricity your panels generate during sunny hours and store it in batteries for use when the sun goes down or during power outages. At the heart of these systems is lithium-ion battery technology, the same proven chemistry that powers electric vehicles, configured to cycle your home’s energy day after day for typically 10 to 15 years. For homeowners who’ve already invested in solar panels or are planning a new installation, storage transforms solar from a daytime-only resource into true energy independence.
The value proposition has shifted dramatically. Battery prices …