Batteries
Home solar batteries: when storage is worth it, what it costs, and how it pairs with your panels.
Adding a battery to a home solar system is one of the most expensive decisions you'll make — and one of the most oversold. A battery stores the solar energy your panels produce during the day so you can use it at night or during an outage, but whether it pays off depends heavily on your electricity rates, your utility's net-metering rules, and what you actually want storage to do.
This hub collects our independent, numbers-first guides on home storage. We don't sell batteries and we don't take installer referrals — the goal is simply to help you decide whether storage makes sense before anyone quotes you a price.
Start with the decision, not the product
The first question isn't "which battery?" — it's "do I need one at all?" If your utility credits you fairly for exported energy, a battery may save you little; if you face time-of-use rates or frequent outages, the math changes. Our guide on whether you need a battery with solar panels works through that trade-off with real scenarios.
Cost, lifespan and capacity
Once storage is on the table, three numbers drive everything: upfront cost, how long it lasts, and how much it can power. We cover how much a solar battery costs, how long solar batteries last, and whether a battery can run your whole house — including the gap between backing up a few essential circuits and going fully off-grid.
Read these before comparing quotes: knowing the right questions is what keeps storage from becoming an expensive accessory.