Wattfull field guideIssue 001 / United States
Energy decisions,
without the sales pitch.
Independent calculators for the expensive choices: an EV, a solar array, a charger, or the battery that keeps the lights on.
50states modeled
03public data sources
100%editable assumptions
0sales leads sold
Choose a question / not a product
Begin with the decision that is keeping you up.
Each path starts simple, then lets you open the hood and change the assumptions.
01
Vehicle decision
Does an EV actually save me money?
Compare purchase price, local energy rates, incentives, maintenance, and the years you expect to own it.
Best with your ZIP + annual mileage
02
Home energy
Will solar pay for itself on my roof?
Model production and payback without assuming every roof, utility, or financing plan behaves the same.
Best with your monthly power use
03
Side-by-side
Which option wins over the full ownership period?
Separate the sticker price from the operating cost and see exactly where one path overtakes the other.
Best when you have a real shortlist
A note from the workbench
“The assumptions are usually more important than the answer. So Wattfull shows both.”
No mystery score, no lead-gen funnel. Just local inputs, visible math, and a verdict you can challenge.
Read how Wattfull works ↗The complete workbench