Interactive Tool
Grid Loss Estimator
Estimate how much energy is lost in transmission over a given distance.
Enter energy sent, loss rate and distance to estimate how much electricity is delivered vs. lost in transmission.
HVAC: ~2–4%; HVDC: ~0.3–1%
Transmission loss estimate
How to use this tool
- Enter your values in the fields provided.
- Read the instant results below the form.
- Copy, download, print, or share your result.
💡 Good to know
All calculations use standard, published formulas and simplified assumptions so beginners can build intuition. For real projects, always consult qualified engineers and site-specific data.
Frequently asked questions
Typical transmission losses?
High-voltage AC lines typically lose 2-4% per 100 km. HVDC is more efficient over very long distances.