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Solar & Electricity Calculator
Planning estimates, reviewed October 2026 — flat-rate math on your figures, not DISCOM slabs or a site survey. Confirm tariffs and sizing with your bill and vendor.
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The estimate is units × per-unit rate plus any fixed monthly charge: 200 units at ₹8 with a ₹100 fixed charge is ₹1,700. The page shows the energy charge and fixed charge separately, so you can see which half of the bill is usage and which half arrives no matter what you switch off.
Copy units consumed and the fixed/demand charge straight off your latest bill, and use either your dominant slab rate or a blended per-unit figure (last bill total ÷ units) as the rate. A blended rate usually lands closer than any single slab, because real bills stack slabs, fuel surcharges, duty, and taxes that one flat rate cannot reproduce exactly.
It does not apply telescopic DISCOM slabs, look up live tariffs, or add late fees and arrears — a flat-rate sanity check to hold against the bill, not a duplicate of it.
Not DISCOM-specific slabs — enter your own rate.
Slab pricing, fuel surcharges, electricity duty, and taxes add up beyond a flat per-unit rate. Enter a blended rate from your bill for a closer estimate.
No. You enter the rate; there is no live tariff feed.
Your last bill's total divided by its units — one number that folds slabs and surcharges together. It usually estimates the next bill better than any single slab rate.
That is the promise behind every tool here. Files are read in your browser tab, processed there, and discarded when you close it — never uploaded to our servers.