Available now
Building profile
Set your energy use, utility prices and investment budget. Import a year of bills with the CSV template.
Set up a buildingPUBLIC BETA · NO SIGN-UP NEEDEDFind the right energy
Find the right energy
upgrades for your building.
WattWise is a free energy investment planner by ArforEarth. Compare building upgrades, estimate savings and carbon reductions, and find the combination that fits your budget.
Free to exploreTransparent calculationsInputs stay in your browser
AN EXAMPLE, NOT A PROMISE01 / PLAN
Keystone Market
Grocery store · Pennsylvania · 15,000 sq ft
Recommended investment$58,800
$75,000 budget5 selected upgrades
First-year savings$18,139
Avoided emissions / year39.6t CO₂e
Illustrative inputs · USD · estimated outcomes
AN ARFOREARTH INITIATIVE
Making the economics of energy efficiency easier to understand.
AVAILABLE TODAY
Explore the complete planner.
For building owners, facility teams and anyone learning how energy upgrades translate into financial and environmental value.
Available now
Upgrade explorer
Compare lighting, controls, HVAC, refrigeration, motors and solar using editable cost and savings assumptions.
Explore upgradesAvailable now
Scenarios & sensitivity
Save plans in this browser and compare conservative, expected and optimistic savings estimates.
Explore scenariosAvailable now
Investment report
Review your recommended package, projected cash flow, payback and emissions. Print a report to share.
View the reportStart with the sample. Make it yours.
The planner opens an illustrative US grocery store, or your previously saved inputs. This release uses USD. Replace assumptions with actual data before using a result for investment planning.
A CLEAR PATH FROM DATA TO DECISIONYour building. Your budget.
Your building. Your budget.
Your next step.
Start with a sample, then replace the assumptions with your own utility data and vendor quotes.
01
Describe your building
Enter annual energy use, prices, end-use shares and a budget. Or import 12 months of utility data using the CSV template.
02
Compare the possibilities
Explore six editable upgrades. The model compares every eligible combination, accounting for overlapping savings and equipment lifetimes.
03
Make an informed plan
Review cash flow, payback and emissions. Save scenarios, stress-test savings assumptions, and print a report to discuss with your team.
TRANSPARENT BY DESIGNSee the reasoning.
See the reasoning.
Own the decision.
WattWise uses an inspectable calculation engine and a built-in decision guide. The public version makes no paid AI calls.
Explore the methodologyBuilt around your data
Building inputs, CSV files and scenarios are processed in your browser. Export a project copy whenever you need it.
Financial and environmental value
Compare net present value, payback, annual savings and estimated avoided emissions.
Honest about uncertainty
Conservative and optimistic cases show sensitivity. Results are planning estimates, not guaranteed savings.
WHAT’S NEXT
Growing with ArforEarth.
These features are planned and are not active in the current release. Release dates will follow validation and testing.
Built for India
INR support and India-specific tariff and incentive inputs, backed by validated local assumptions.
Today: USD and an illustrative US profile.On-device AI explanations
An optional AI model that runs in compatible browsers, subject to device requirements, model quality and licensing review.
Today: a working rule-based calculation guide.BEFORE YOU BEGIN
A few useful answers.
Is WattWise free, and do I need an account?
The public planner is free to use without signing in or supplying an API key. The calculation engine and guide run in your browser.
Is this an AI chatbot?
The launch version is a numerical decision engine with a rule-based explanation guide. It is not a generative AI model. This keeps the core experience fast and avoids per-question AI charges.
Can I use it for a building in India?
This release uses USD, square feet, kWh and therms, with an illustrative US grocery-store profile. It does not fetch Indian tariffs or incentives or convert currencies. India-specific localization needs validated local inputs and is planned for a later release.
Who is behind WattWise?
WattWise is a project of ArforEarth, an organization based in India. Explore the organization at arforearth.org.
How should I use the recommendations?
Use them to compare options and start a conversation with an energy professional. Verify actual building data, installation quotes, incentives and engineering savings before committing money.
Turn possibilities into a plan.
Explore the sample building and see what a smarter energy investment could look like.
Try the energy planner