SnapEnergyLab

Reference

Need help with SnapEnergyLab?

Most questions about a calculation, assumption or data source are already answered in the references below. Start with the topic that matches your question.For questions about a result, check the calculator's assumptions and methodology before contacting us — these explain most differences between an estimate and a real-world result.

What do you need?

Methodology

See the formulas, calculation logic, unit conventions and engine versions used across SnapEnergyLab.

Explore methodology

Data sources

See the datasets and reference values used by the calculators, including their source, scope and update approach.

View data sources

Assumptions

See the default efficiencies, duty cycles, losses, performance factors and other assumptions behind estimates.

Check assumptions

Disclaimer

Understand what each calculator can and cannot predict and the main reasons real-world outcomes may differ.

Understand the limits

Privacy

See exactly what stays in your browser, what technical infrastructure may process and what SnapEnergyLab does not collect.

Read privacy policy

Terms of Use

Read the conditions covering use of the calculators, datasets, results and written material.

Read terms

Question about a calculation?

Before reporting a result as incorrect, check these three things. Most apparent discrepancies come from an input, a default assumption or comparing an estimate with a real-world measurement that includes factors the calculator does not model.

  1. 1

    Check your inputs

    Confirm the units, electricity rate, wattage, capacity, efficiency or other values entered into the calculator.

  2. 2

    Check the assumptions

    Open the calculator's assumptions and see which defaults are being used.

    View assumptions
  3. 3

    Check the method

    See the formula and calculation logic used to produce the result.

    View methodology

Still looks wrong? A reproducible calculation error is exactly the kind of report we want to receive.

Looking for something else?

Still need to contact us?

If you have found a reproducible calculation error, a problem with a source, or something that is not answered in the references above, you can contact SnapEnergyLab by email.

snapenergylab@gmail.com

What makes a useful report?

If reporting a calculation issue, please include:

  • the calculator/page you used
  • the inputs you entered
  • the result you received
  • the result you expected
  • the source or calculation you used for comparison, if applicable

SnapEnergyLab is a free reference service and cannot provide personalised electrical, engineering, installation, financial or purchasing advice by email.

Reference