Free · No email required

Homeowner Tools

We built these so you can see upfront which energy upgrades are a good fit for your home — before you book a consult, before you give anyone your email. Real numbers, tuned to New England.

  • No email gate. No “schedule a call to see your results.”
  • Numbers tuned to MA, NH, VT, and ME field data.
  • Built by people who actually install these systems.
MA · NH · VT · ME
No email gate
Tuned to NE 2026 prices
Built by installers, not marketers

Try them yourself

See what actually fits your home.

Each tool answers a different question about whether a given upgrade makes sense for your house. Use whichever’s on your mind — no required order, no email gate.

Whole-home planning

Energy Plan Builder

“What should I do first — and in what order?”

A short questionnaire that takes your house, current setup, and goals and gives you a recommended sequence of upgrades — solar, battery, heat pump, EV charger — with directional cost ranges and payback windows.

  • Personalized order of operations
  • Cost ranges tuned to your state
  • Catches the gotchas (leased solar, old envelopes)
~3 min4 steps
Build My Plan →

Battery sizing

Battery Backup Calculator

“How long will a battery actually keep my house running?”

Pick a battery (Powerwall, Enphase, Franklin, or custom kWh). Toggle on the loads you’d actually want kept on during an outage. See how many hours or days you’d really get — and which loads will burn through your battery fast.

  • Real runtime in hours / days
  • Honest about EV charging, AC, and heat pumps
  • “% of average home” coverage gauge
~2 minLive sliders
Size My Battery →

Heat pump economics

Heat Pump Savings Calculator

“Is a heat pump actually going to save me money?”

Enter your fuel type, annual spend, state, and utility. See your real-world heat pump operating cost vs. what you pay for oil, propane, gas, or electric resistance — with state rebates already factored in.

  • State + utility-specific HP winter rates
  • Side-by-side with solar pairing math
  • Whole-home vs. partial-displacement modes
~3 minLive comparison
Run My Numbers →

How we built these

No sales pitch. Just real numbers.

Every assumption in every tool is documented and based on what we actually see in homes across MA, NH, VT, and ME — not generic national averages. If a number is wrong for your specific house, the consult is where we tune it.

Field-tuned, not generic

Oil prices, utility rates, heat-pump winter rates, rebate caps — pulled from current New England residential data, not stale national averages.

No email gate, ever

You see your full result without giving us anything. If the numbers don’t make sense for your house, you can close the tab and we’ll never know you were here.

Sequence over default

Most installers default to “how much solar?” Our tools default to “what’s worth doing, in what order, for your house?” — and pairing battery storage with the solar install is often the answer, especially when they go in together.

Directional, not final

These are good enough to make a real decision about whether to dig deeper. They aren’t proposals. The consult is where it gets specific to your house.

Tool FAQ

Questions we get a lot.

Do I have to give you my email or phone number to see results?
No. Every tool gives you the full output on screen, no gate. We use a remote consult — booked when you’re ready — as the only “lead form” on the site. The tools are honest-to-goodness self-serve.
Where do the numbers come from?
Current New England retail prices for oil, propane, and gas; utility-published 2026 heat pump tariffs and residential rates; Mass Save, NHSaves, Efficiency Vermont, and Efficiency Maine published rebate schedules; and our own install run rates for solar and equipment cost. Every assumption is also called out inside each tool.
Why MA / NH / VT / ME only?
Because that’s where we install and where we have real field data. The math for solar, batteries, heat pumps, and EV charging shifts meaningfully across climate zones, utilities, and rebate programs. Rather than pretend our tools work nationally, we tuned them to the four states we actually serve.
Can I use the tools without working with WattsUp?
Yes. Run the numbers, save the page, take them to whoever you want. We’d love a consult if you’re curious about the install side, but the tools belong to whoever uses them.
Will my actual quote match the tool’s numbers?
Pretty close, but not exact. The tools use averages and your inputs; a real quote depends on your roof, your panel, your service entrance, what your existing HVAC looks like, and what you’re trying to get out of the install. The tool’s job is to tell you whether it’s worth a closer look — the consult is where we get specific.

Get Started

Ready to turn the numbers into a plan?

A remote consultation with one of our energy experts is free, takes about 45 minutes, and ends with a clear next-step recommendation — even if that recommendation is “wait six months.”