ABOUT THE PROJECT

Practical tools.
Visible assumptions.

EnergySystemSizer helps people ask better questions before choosing solar, batteries or EV charging equipment.

What you can do here

Estimate capacity, compare scenarios and inspect the calculation behind a result. Homeowners can begin with a bill or an essential-load list. Energy practitioners can explore battery topology and dispatch constraints. Fleet and site planners can examine charging windows and supply limits.

Where the numbers come from

The calculator methods are documented in the methods and sources. Field guides contain original synthetic examples, with input values and arithmetic provided so you can reproduce them. They are not customer case studies or measured installation performance.

Who is responsible for the content?

The public author of this version is Soheb Zaidi. Visit the linked profile for professional background or to get in touch. This website does not claim a certified engineering review, institutional affiliation or independent product testing. Editorial and calculation assistance used AI; numerical examples are checked with reproducible tests. A qualified project-specific review remains necessary before buying or installing equipment.

How this project is maintained

The change log records changes in this version. The issue-report page helps you capture a reproducible calculation or source problem. New dates reflect actual edits; they are not evidence of an independent review or a completed installation.

Advertising

The existing calculators retain the site’s AdSense integration. Advertising does not change the calculations. An advertisement is third-party content, not an equipment endorsement. This project does not sell installations through these pages.