Spend less on energy. Keep more of your money.

What we are building

Our calculators turn household assumptions into understandable estimates for energy savings, purchase cost and payback. Inputs remain editable so you can see exactly what changes the answer.

How we help

We combine independent calculations, regional estimates, incentives and product options in one decision path. Our goal is to help you identify the projects worth investigating—and the ones that can wait.

Important limits

Kill The Watt provides planning estimates, not engineering, electrical, tax or financial advice. Verify compatibility, eligibility, pricing and installation requirements with qualified professionals, utilities and product manufacturers.