AC-Coupled vs DC-Coupled Batteries: Which Fits Your Home?
How AC-coupled and DC-coupled home batteries differ, why their efficiency ratings are not directly comparable, and which one fits new or existing solar.
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Home Batteries
A home battery can keep the lights on during outages and, with the right tariff, cut your bill. Learn how to size one, what it really costs and when it is not worth it.
Guides
Can You Add a Battery to an Existing Solar System?
Yes, most solar systems can take a battery. How AC-coupled retrofits work, which batteries fit, the limits to check and what happens to your net metering.
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Home Battery Storage Cost in 2026: Full Price Breakdown
What a home battery costs in 2026: typical installed prices by brand and per kWh, what the quote includes, which incentives still exist and how to pay less.
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Is a Home Battery Worth It Without Net Metering?
When exports earn less than retail, a battery stores your solar for later. See how to work out if it pays off, with the math and honest payback ranges.
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How Long Will a Powerwall Run My House During an Outage?
A Powerwall 3 stores 13.5 kWh. See how many hours that runs an average home in an outage, why the starting charge matters and how to estimate yours.
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How Many kWh Battery Do I Need to Power a House?
How many kWh of battery storage a home needs for essentials or whole-house backup, worked out from EIA usage data, with the batteries it takes to get there.
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LFP vs NMC Home Batteries: Safety, Lifespan and Cost
LFP and NMC are the two lithium-ion chemistries in home batteries. How they differ on safety, lifespan, size and cost, and which one most new batteries use.
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