EV charging billing & metering
How should a society measure and bill EV charging fairly? These guides compare sub-meter and smart-charger billing, explain who pays for wiring, and show how to calculate and split charging costs.
Guides in this section
Billing
The DISCOM says the transformer is full: who pays for the upgrade, and how long it may take
Your DISCOM says the transformer cannot take your society's EV load. Here is what to ask for in writing, the ninety-day ceiling where mains or a…
Billing
EV charging in a single-point supply society: no-profit-no-loss billing, a separate EV connection, or the ballot
On single-point supply, your society buys electricity and bills each flat itself. Three provisions of the national consumer rules decide how your EV…
Billing
Can you earn from the EV charger at your flat? Where sharing at cost ends and selling charging begins
Letting neighbours use the charger at your flat is easiest at exact cost. A margin or an app's public mode brings in the Ministry of Power's…
Billing
EV charging in a Hyderabad flat: LT-I above 200 units, Gruha Jyothi, or a separate LT-IX meter
In a Hyderabad flat, an EV that takes the month past 200 units reprices the whole LT-I bill and can end an eligible Gruha Jyothi zero bill. We price…
Billing
Employer-paid EV charging at your flat: how rule 15 of the Income-tax Rules, 2026 values it
Rule 15 of the Income-tax Rules, 2026 puts every electric car in Table II's column C. We read each row against the published rule text: a company EV…
Billing
Will your EV cost you Tamil Nadu's 200 free units? Pricing the 500-unit cliff for flat owners
Since 10 May 2026, a Tamil Nadu domestic bill at or under 500 units for two months carries 200 free units, and a bill over it carries 100. We price a…
Billing
Smart meter and EV charging: what happens when you exceed your sanctioned load
When a smart meter records demand above your sanctioned load, rule 5(5B) bills that month on the recorded figure, and three such months in a…
Billing
PM Surya Ghar for housing societies: the common-facilities solar subsidy and your EV chargers, worked on your own numbers
A housing society can claim PM Surya Ghar assistance of Rs 18,000 per kWp for a solar plant serving common facilities, including EV charging. We read…
Billing
EV or petrol in a flat: running cost per km on your own charging mix
Compare an electric car with petrol on running cost per kilometre when you live in a flat. Build one blended charging rate from your own meter, a…
Billing
Pay the society charger's per-unit rate, or install your own point? A break-even on your own bill
Your society already has a shared EV charger. Is your own charging point worth installing? A break-even formula on your own bill, your installer's…
Billing
GST on EV charging in a housing society: what the circulars settle and what they leave to your CA
Does your housing society owe GST on EV charging it recovers from members? It depends on how you bill. We read Circulars 206/18/2023 and 109/28/2019…
Billing
Is your society's EV charging rate within the service-charge ceiling?
The Ministry of Power's 2024 EV charging guidelines set a ceiling on the service charge added above the electricity tariff at a community charger. We…
Billing
What later EV owners should pay the neighbour who funded the shared cable
When one resident funds a shared EV-charging cable, how much should later owners pay to buy in? A depreciation formula on your society's own figures…
Billing
Sizing a society EV charging reserve: a five-year projection on your own numbers
The upgrade or replacement quote tends to arrive in year four or five, and the reserve has to be large enough by then. This page runs a five-year…
Billing
Does EV charging cost non-EV members anything? A cost-isolation worksheet
The most common AGM objection to EV charging deserves a number, not a debate. This worksheet lists every cost line a charging point can create…
Billing
Free chargers for your society: what the operator deal really costs
A free operator installation is not a gift; it is financing. The society swaps capital cost for a higher price per unit, a multi-year term and…
Billing
When EV billing goes wrong: resolving charging disputes in a society
Most EV billing disputes in a society can be settled by a written billing method, a photograph of the meter and a calm escalation ladder rather than…
Billing
What EV charging really does to your electricity bill (worked examples)
Home EV charging usually adds a modest, predictable amount to an Indian apartment electricity bill: a scooter may add ~20–25 units a month, a…
Billing
Budgeting a society charging station: every cost component explained
A society charging station budget has eight main cost lines: power supply, charger hardware, cabling, civil work, metering, signage, a maintenance…
Billing
Own meter, sub-meter or common meter: choosing your EV charging connection
If parking sits near your flat's meter, extending your own supply with a sub-meter is usually simplest; a separate DISCOM meter suits long cable…
Billing
Does charging your EV at night save money? It depends — here's how to check
Night charging cuts your EV bill only when your connection is on a time-of-day tariff — many are not. Check your bill for slot-wise units or ask your…
Billing
Reading your electricity bill as an EV owner: units, slabs and charges
Your bill has three main pieces — energy charge per unit, fixed charge, and taxes. Because many DISCOMs use slab tariffs, EV charging units can push…
Billing
Visitor EV charging: how societies can handle guest vehicles
Most societies handle guest EV charging one of three ways: a no-guest policy, paid sessions at a metered shared point, or resident-sponsored charging…
Billing
How housing societies can bill EV charging fairly: the complete guide
The fairest approach is to measure each vehicle's actual consumption — via a separate meter, sub-meter, or smart charger — and bill at an agreed…
Billing
How to split shared EV-charging costs between residents
The fairest split is per-unit (kWh) billing plus an equal share of fixed costs. Here is how to measure each resident's usage, handle maintenance…
Billing
Sub-meter versus smart-charger billing for apartment EV charging
A sub-meter measures charging electricity with a physical meter anyone can read; a smart charger measures it internally and reports through an app…
Billing
Who pays for apartment EV-charger wiring? A fair cost-splitting guide
The resident pays for everything that exists only because they charge a vehicle; the society pays for what serves the building. Shared-benefit…
Billing
How to calculate your monthly EV charging cost (with worked examples)
Monthly charging cost = (kilometres ÷ your vehicle's real km per kWh) ÷ charging efficiency × your tariff per unit. Here is where to find each…