How do you calculate EV charger quote margin?

Subtract the required delivered charger cost from the quoted charger or site price, then divide by the reference price and multiply by 100. A $285,000 quote on $231,000 delivered cost gives $54,000 margin, or 18.9%.

What is a good margin on an EV charging project?

Hardware-plus-install site packages often run 15-25% gross because make-ready civils and interconnection are competitively bid; the 18.9% example is typical for a turnkey site, while hardware-only sales can carry higher margin.

Should make-ready and civil work be in the delivered cost?

Yes for a site package. Trenching, conduit, transformer pads and the make-ready scope are real delivered cost; leaving them out is the fastest way to turn an apparent 19% margin into a loss.

Why does the calculator use a reference quote price?

The reference price is the denominator for the percentage. Set it equal to the quote ($285,000 here) for normal margin, or to your original pre-discount price to see how much a tender discount has eroded margin.

How thin is too thin on a charging bid?

On a $231,000 delivered cost, margin dollars of $54,000 (18.9%) leave some cushion; below about 12-15% there is little room for interconnection delays or change orders, which are common on charging sites.

Is this margin per charger or per site?

It works for either — just keep the quoted price and delivered cost on the same basis. The example treats a multi-port site package as one quote rather than per-port.

EV Charging Infrastructure Manufacturing calculator

Charger Quote Margin Calculator

Charger quote margin is the gross margin left on an EV charging bid after the required delivered cost of the charger or whole site package — power electronics, cabinets, cabling, make-ready civils and installation — is taken out of the quoted price. Sales engineers and project estimators at EV charging manufacturers and EPCs use it because charger projects bundle hardware, sitework and grid-connection cost, and any of those can blow the margin if mis-estimated. With public-charging tenders priced aggressively and demand charges squeezing operators, knowing real margin before bidding is essential. This calculator returns both margin percent and margin dollars from a quoted price, a delivered cost and a reference price.

What this calculator does

Calculate quote margin for EV charging equipment by comparing quoted selling price with required delivered cost.
an estimator needs to verify margin before submitting a charger quote
It computes quote gross margin dollars (quoted price minus required delivered charger cost) and expresses it as a percentage of the reference quote price.

Formula used

Quote gross margin dollars = quoted charger price - required delivered charger cost
Charger quote margin = quote gross margin dollars ÷ reference quote price × 100

Inputs explained

Quoted charger or site-package price: Use the proposed customer price for chargers, ports, cabinets, dispensers, installation kits, or site package scope.
Required delivered charger cost: Include BOM, labor, test, warranty reserve, packaging, freight, installation kit, overhead, and supplier risk.
Reference quote price: Usually the quoted price used as the denominator for gross margin percentage.

How to use the result

Use it when bidding a charger or full site package — single DC fast charger up to a multi-port depot — before the quote is submitted.
It captures delivered cost only, so utility interconnection delays, permitting cost and ongoing warranty or uptime-SLA exposure on the chargers are not reflected in the margin.

Current U.S. benchmarks

Global copper trades at $13,484 per tonne (IMF via FRED, May 2026), up 41.5% in a year, and U.S. industrial electricity averages 8.66 cents per kWh. Both feed electrified-hardware unit economics.

Common questions

How do you calculate EV charger quote margin? Subtract the required delivered charger cost from the quoted charger or site price, then divide by the reference price and multiply by 100. A $285,000 quote on $231,000 delivered cost gives $54,000 margin, or 18.9%.
What is a good margin on an EV charging project? Hardware-plus-install site packages often run 15-25% gross because make-ready civils and interconnection are competitively bid; the 18.9% example is typical for a turnkey site, while hardware-only sales can carry higher margin.
Should make-ready and civil work be in the delivered cost? Yes for a site package. Trenching, conduit, transformer pads and the make-ready scope are real delivered cost; leaving them out is the fastest way to turn an apparent 19% margin into a loss.
Why does the calculator use a reference quote price? The reference price is the denominator for the percentage. Set it equal to the quote ($285,000 here) for normal margin, or to your original pre-discount price to see how much a tender discount has eroded margin.
How thin is too thin on a charging bid? On a $231,000 delivered cost, margin dollars of $54,000 (18.9%) leave some cushion; below about 12-15% there is little room for interconnection delays or change orders, which are common on charging sites.

Last reviewed 2026-05-12.