Disclaimer

Last updated: October 19, 2026

Informational content only

Everything on Dnaso is published for general informational purposes. It is not professional engineering, electrical, or legal advice, and it doesn't replace an on-site assessment of your home by a qualified professional.

Electrical and gas safety

Generators, transfer switches, interlock kits, and home batteries involve lethal voltages, carbon monoxide risk, and (for fuel-burning units) flammable fuel.

• Never connect a generator directly to your home's wiring without a listed transfer switch or interlock kit installed by a licensed electrician.
• Never run a fuel-burning generator indoors, in a garage, or near windows — carbon monoxide kills silently.
• Electrical code (NEC) and local permit requirements vary by jurisdiction. What we describe generally may not match your local code.
• Battery systems involve high-voltage DC and should be installed by certified professionals.

If you're unsure about anything electrical, hire a licensed electrician. Saving a few hundred dollars isn't worth the risk.

Costs and tax credits

Cost ranges and tax-credit figures (including the federal Investment Tax Credit for batteries) reflect our research at the time of writing and change frequently. Get written quotes for your project and confirm tax matters with a qualified tax professional — we aren't one.

Affiliate and ad disclosure

Dnaso earns revenue from display advertising (Google AdSense). We don't accept payment to recommend products, and our guides aren't influenced by advertisers.