Free calculator

How many chargers
can your site take?

08 / 07

A quick first check using the sanctioned load and maximum demand from your electricity bill.

From your electricity bill

Sanctioned / contracted loadkWIf your bill shows kVA, use about 0.9 × kVAHighest demand recordedkWMaximum demand (MD) from recent bills

Safety margin to keep free%We usually keep 15–25% headroom

Chargers you want

Charger typeNumber of chargers

First check

Spare load available—

Chargers that fit now—

Load needed for your chargers—

Load enhancement—

This is a first estimate only. Transformer capacity, cable route and panel space also matter, and we check all of them in a free site survey.

How it works

What the numbers mean.

Spare load
Sanctioned load minus the safety margin, minus the highest demand your site already uses. This is the room left for chargers running at full power together.
Where to find the numbers
Your electricity bill shows the sanctioned or contracted load and the recorded maximum demand. Use the highest MD from the last 12 months, usually in summer.
Not enough spare load?
The options are a load enhancement, a separate EV connection with an EV tariff, or smart load management that shares power between chargers. Read our guide to DISCOM approvals.
Apartments
For gated communities, the common-area connection and each flat's own connection are different. We look at both before recommending shared or individual chargers.

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