Commercial EV charging, priced over ten years

Define the use case before anyone specifies hardware

The three common cases buy different things. Workplace charging is an employee benefit: long dwell times, predictable users, and Level 2 is almost always right. Customer amenity charging is a marketing and footfall investment: shorter dwell, more visible siting, and the driver is a stranger who needs to pay. Fleet depot charging is an operational requirement: it must work every morning, which makes uptime and redundancy the specification rather than speed. Say out loud which of the three you are buying.

Watch for: A proposal that mixes the cases. A workplace bank sized as if strangers will use it, or a customer amenity metered like a staff perk, produces equipment that is wrong for everyone. Write down the use case and hold the vendor to it.

Assess the site and the electrical service honestly

Two questions decide most of the budget: how much spare capacity your service has, and how far the stalls are from where power is available. Car parks are large, and long runs mean trenching, boring under drive lanes and reinstating surfaces. On existing buildings the service assessment often turns up first, and it is the answer that determines whether this is a modest project or a service upgrade with a utility timeline attached.

Watch for: A proposal built without a service capacity study. Capacity findings after design is complete are the most expensive kind of surprise on these projects, and the point at which timelines slip by quarters rather than weeks.

Choose Level 2 or DC fast on dwell time, not on ambition

Level 2 suits anywhere vehicles sit for hours — offices, hotels, apartments, long-stay parking, overnight depots. DC fast suits short dwell where a driver stops specifically to charge, and it costs dramatically more to install, needs far more service capacity, and brings equipment with a real maintenance profile. Many sites that ask for fast charging are better served by more Level 2 stalls for the same money.

Watch for: DC fast specified because it sounds better. Ask the vendor to justify it against the actual dwell time on your site. More stalls generally beats fewer, faster ones on any site where people are already staying a while.

Decide how access and payment work — and who owns the back office

Networked chargers handle authentication, pricing, reporting and reimbursement. That is what makes staff-only access, employee reimbursement, tenant billing or paid public charging possible at all. It is also a subscription per port, for the life of the equipment, plus a payment processing arrangement. Non-networked units are cheaper and simpler, and cannot do any of it.

Watch for: The subscription absent from the proposal, or quoted for only the first year. Ask for the per-port recurring cost, the contract term, what happens at renewal, and whether the hardware still works if you leave the network. Vendor lock-in on chargers is real and it is easiest to negotiate before you buy.

Get the accessible stalls right at design stage

Charging stalls have accessibility obligations, and they cover more than painting a symbol on the ground: access aisles, the route from the stall to the charger, the height and reach of the equipment and its interface, and clear space around the unit. Requirements come from federal accessibility rules and from state and local codes, and they interact.

Watch for: Accessibility treated as a line item added after the layout is fixed. It constrains stall geometry, unit placement and cable management, and retrofitting it means moving equipment and surfacing you have already paid for. Have your design professional confirm the applicable requirements for your jurisdiction before the layout is finalised.

Engage the utility early — make-ready and interconnection

Many utilities run programmes that fund or perform some of the infrastructure between their network and your site, and many have specific application processes, eligibility conditions and queue positions. Separately, any material increase in load needs interconnection approval. Both run on the utility's timetable rather than yours, and both are the most common cause of a project missing its planned opening.

Watch for: Programme details taken from a vendor's deck. Programmes, funding levels and eligibility change frequently and differ by utility and territory. Contact your utility's account or business EV team directly and get the current requirements and realistic lead times from them, in writing, before you build a schedule around them.

Model the operating cost, especially demand charges

Commercial electricity bills commonly include a demand component based on your highest short-interval draw during the billing period, not just total energy. A bank of chargers all starting at once can set a new peak that costs you every month afterwards. Managed charging that staggers and limits sessions is the standard mitigation, and it is the same principle as residential load management applied at site scale.

Watch for: A business case built on energy price per unit alone. Ask your utility how demand is billed on your tariff and model the charging profile against it. This is the single largest recurring cost most operators fail to anticipate.

Agree maintenance, uptime and who answers the phone

Chargers in public car parks get weather, abuse, vandalism, cut cables and firmware faults. Someone must monitor uptime, respond to faults, replace connectors and handle drivers who cannot start a session. That is either an internal responsibility, a service contract, or a gap in your operation that shows up as bad reviews in charging apps.

Watch for: A quote with no service agreement attached. Ask what the response time commitment is, what parts are covered, who pays for vandalism, and what your obligations are if you have taken utility or grant funding that comes with an uptime condition. Unmonitored chargers degrade quietly and are worse for your reputation than no chargers.