Question 1

What clean energy upgrades can I compare?

Accepted Answer

The Scenario Comparator lets you combine solar panels, an electric vehicle, a heat pump, a heat pump water heater, and home battery storage in any combination to see which upgrades deliver the best return over 25 years.

Question 2

How are the savings calculated?

Accepted Answer

Savings are estimated using your state's average electricity rate and real EIA data for utility costs. Solar production is modeled on average peak sun hours, and EV savings use EPA fuel economy benchmarks compared to the national average gas price.

Question 3

Can I compare more than two scenarios at once?

Accepted Answer

Yes — you can build and compare up to four named scenarios side by side, each with a different combination of clean energy upgrades. Charts update instantly as you add or remove upgrades from each scenario.

Question 4

Does this include federal tax credits and incentives?

Accepted Answer

Upfront costs shown include standard IRA clean energy tax credits (30% for solar, up to $7,500 for EVs) where applicable. State-level incentives vary — use our Incentives by State tool for your full local picture.