About MyEnergyToolkit

MyEnergyToolkit is an independently published suite of 31 electricity and solar calculators built around one idea: the questions behind every power bill have numeric answers, and you shouldn't need a spreadsheet, a signup form, or a sales call to get them.

Who creates and reviews the content

Calculators and guides are created and reviewed by the MyEnergyToolkit Editorial Team. We check formulas, units, adjustable assumptions, worked examples, safety notes, and links before marking a page updated. We do not claim to be a licensed engineering practice, and safety-critical electrical or installation decisions must be confirmed against local code and with a qualified professional.

Our complete methodology and editorial standards explain the source hierarchy, formula families, testing process, update policy, and how to report a correction.

What the tools cover

• Bills & home — what you pay, which appliances drive it, and what a better plan or a heat pump would change.
• Solar & battery — whether solar pays off where you live, and the exact system, battery, and inverter you'd need.
• EV & backup power — charging costs and times, generator and UPS sizing.
• Electrical — the conversions and sizing rules (watts, amps, kVA, breakers, wire, voltage drop) that keep planning numbers honest.

How the calculators work

Every tool runs entirely in your browser. Nothing you type is sent to a server, stored, or shared — close the tab and it's gone. The formulas behind each calculator are explained in plain language on the page itself, along with the assumptions, so you can check our math and adjust it to your situation.

Accuracy, honestly stated

These are planning tools. They use standard industry formulas and sensible defaults, but your utility's tariff, your roof's shading, and your local electrical code all have the final word. Results are estimates — not professional, financial, or electrical advice. For installations, always confirm with a licensed professional.

How the site is funded

The site is free to use. We plan to support it with clearly labeled advertising and, where useful, affiliate links. Advertising and affiliations never change a calculator's formula, assumptions, default values, or results.

Get in touch

Spotted an error, want a calculator we don't have, or have a partnership question? Head to the contact page — corrections especially are always welcome.