Adaddi
Practical tools to estimate bills, savings, and payback
Use the calculators to compare before/after solar bills, estimate appliance consumption, and model payback. The tools run in your browser but are not guaranteed to work offline — some features may require network access.
Examples: estimate how quickly a rooftop system pays back, compare loan versus cash purchase, and predict seasonal bill differences. You can export results to CSV for record-keeping or sharing with installers.
Solar Savings Tracker
Compare monthly bills before & after solar, estimate 'no-solar' cost, and view payback projections.
Appliances Calculator
Estimate kWh and cost per appliance.
Soon...
Why this site
The site is a focused set of utilities for electricity computation — calculators, trackers, and helpers to make decisions about solar installations and energy use.
Who this helps: homeowners and small businesses deciding whether to install solar, technicians checking payback scenarios, and students learning about electricity costs. All calculations are transparent and use simple formulas so you can verify results.
How to use
- Open the Solar Savings Tracker and generate monthly fields for your loan period.
- Enter 'Before' (pre-solar) and 'After' (with solar) kWh and price per kWh.
- Use the 'No Solar' column to model what your bills would be without a system.
- Click Calculate to get summaries, payback estimates, and export CSV.
Content & Trust
All tools run client-side in your browser; we don't collect calculation data unless you explicitly save and upload a CSV. For privacy details, see our Privacy Policy.