Are home batteries right for you?

Not every solar home needs a battery. In many cases, solar alone already covers a homeowner’s goals just fine.

Whether a battery adds real value depends less on solar itself and more on your utility company—how it credits excess solar, when electricity is most expensive in your area, and how reliable the grid is—as well as what you want out of your system, like more energy independence or protection during outages. In some cases, solar owners are paid fairly for sending energy back to the grid and don’t experience major pricing swings. In others, solar owners end up exporting electricity for minimal credit, buying it back at higher rates later in the day, or dealing with outages that interrupt service altogether.

If the second scenario resonates with you, a solar battery can change your situation. It lets you store excess energy from your solar panels so you can use it when it’s most valuable—whether that’s to avoid peak electricity rates or power your essential appliances during an outage.

With that in mind, here are four questions that can help you figure out whether energy storage makes sense for your home.

At its core, energy storage is largely about keeping your essentials up and running when the grid goes dark.

The grid is generally reliable, but it’s under more pressure than it used to be. Aging infrastructure, rising electricity demand, and more frequent extreme weather are all adding stress to the system and increasing the risk of outages. Already, power outages seem like just another part of life in certain parts of the country: In the Southeast, hurricane season routinely knocks out power from Florida to the Carolinas. In the Northeast, it's winter storms; Texas has had its share of icy storms, too. And on the West Coast, wildfire-related outages and public safety shutoffs (PSPS) have become a recurring reality in some areas.

If outages are something you deal with more than once in a while, solar plus storage starts to make a lot of sense. When the sun’s out, your solar panels can charge your battery and keep your home running. When the sun sets, your fully-charged battery can keep your appliances running—whether that’s just the essentials or your whole home—so you’re not sitting in the dark when everyone else is.

States with the most power outages

Based on 2024 reliability data (Form EIA-861) from the Energy Information Administration (EIA), the latest report available.

Roughly 30% of homeowners install a battery to save on utility bills, according to EnergySage Marketplace data. But if your utility offers a strong net metering program, you could be losing out on a major financial benefit.

Net metering is a policy that allows you to send extra solar power to the grid in exchange for credits to use later when your solar panels aren't producing enough, like at night or on extremely cloudy days. The best is a one-to-one net metering policy—that means your utility gives you 1 kWh of credit for each kWh your solar panels send to the grid.

But not all policies are equal. In some areas, utilities only offer partial credit (often called net billing), which means you might need to send more energy than you use to cover your bill. In some states, you don’t get any credit at all for the solar energy you export.

If your utility doesn’t offer a one-to-one net metering program, adding a battery is often a smart move to make the most of your solar investment. It ensures you're using as much of your solar production for your home instead of exporting it to the grid for little or no credit.

Top solar states without net metering

Electricity pricing isn’t always a flat rate. It can depend on when you use electricity and, in some cases, how much power you draw at any given moment.

With time-of-use (TOU) rates, electricity becomes more expensive during peak hours—usually late afternoon and evening (coincidentally when solar production is declining). That creates a timing mismatch: You export solar when prices are low, then have to buy electricity back later when prices are high. Even if your solar panels cover most of your usage, that gap can still show up on your bill.

Demand charges work differently and are more common for commercial customers, though some residential rates include them. Instead of billing you for total energy use, the utility company charges based on your single highest spike in power demand during the month. One short burst of heavy usage can set your costs for the entire billing cycle.

In both cases, a battery helps smooth things out by changing when and how you rely on the grid. It stores excess solar energy when production is high, then uses that stored energy to power your home later in the day, rather than pulling from the grid when electricity is expensive or demand spikes. There are even intelligent batteries that automatically decide when to charge and discharge based on your usage patterns, rates, and peaks, so more of your energy is self-supplied, and less is pulled from the grid at the worst possible times.

Top solar states with TOU rates

Battery costs can be a sticking point, but fortunately, there are many state and local incentives that will lower the price in many areas. Storage rebate and incentive programs can significantly reduce what you pay and improve how quickly the system pays for itself. While the federal tax credit no longer applies to residential batteries, there are still several ways to bring the cost down or earn value over time.

Common programs include:

• Rebates: Some states and utilities offer rebates that reduce your installation cost right away. 

• Demand response programs: These programs pay you for allowing your utility to access your battery when the grid is under stress. When demand spikes, your battery helps supply power back to the grid, and you’re compensated based on how much energy you provide.

• Virtual power plants (VPPs): Similar to demand response, VPPs group home batteries into a coordinated network that functions like a single power plant. In return for participating, homeowners receive payments for allowing their batteries to discharge to the utility company during peak demand.

• Federal tax credit (for leased systems): Even though homeowners can’t directly claim the federal tax credit anymore, leased systems still qualify through the installer. Those savings are typically reflected in lower monthly lease payments.

These questions are meant to narrow things down, but the final call usually comes down to your specific system and utility setup. Your best bet is to work with a reputable installer who can review your rates, usage patterns, and solar design to figure out whether a battery will meaningfully improve your system, or if solar alone already gets you most of the way there without the added cost.