Commercial EV charger installation in Denver.

Start with the job the chargers must perform. Employee vehicles may remain parked for a workday, while fleet vehicles may have short charging windows between routes. Public or customer charging can add payment, access, support, signage, and reporting needs.

Next, decide how much control the facility needs. A simple private installation may only require authorized access. A larger program may need networking, user accounts, energy data, pricing, and remote support. Network service can become an ongoing operating expense, so define it before procurement.

Finally, plan for growth. The first phase may use only part of the final parking area. A thoughtful site design can reserve panel capacity, conduit paths, equipment space, and accessible routes for later ports. This does not remove every future construction cost, but it can keep expansion from becoming a fresh design problem.

Equipment price is only one line. Ask bidders to separate the work below so you can see which assumptions create risk.

Level 2 equipment is often a practical fit when vehicles remain parked long enough to receive energy over several hours. It can serve employees, visitors, multifamily residents, and fleet vehicles with predictable dwell periods. The installation still needs dedicated electrical distribution, safe cable reach, suitable mounting, protection from vehicle impact, and a clear operating policy. Port count and power per port should be evaluated together. More ports do not help if every vehicle receives too little energy for its next trip.

DC fast charging moves the conversion from the vehicle into external charger equipment. That changes the footprint, heat management, electrical demand, and utility conversation. It can fit public charging or fleet operations where turnaround matters, but speed should solve a real duty-cycle need. A high-power unit is not automatically the better commercial choice.

Compare equipment by delivered function, not the nameplate alone. Review connector support, cable length, weather rating, network options, warranty terms, service access, replacement parts, reporting, and load-control compatibility. If rapid turnover is central to the project, evaluate DC fast charging as its own design path rather than treating it as a larger Level 2 installation.

Project difficulty often follows the electrical path and operating constraints, not the number of chargers alone. Use these conditions to test whether an early estimate is realistic.

A useful assessment begins with vehicles and schedules. Record who will charge, arrival and departure times, daily energy needs, peak occupancy, route windows, and expected growth. Then compare that demand with the parking layout and the building’s electrical system. Review service information, transformers, switchboards, panels, major loads, metering, and available equipment space. Field conditions should confirm drawings because older records may not show later changes.

The physical route matters just as much. Charger locations affect trench length, wall penetrations, pavement repair, snow-clearance paths, pedestrian movement, cable reach, lighting, signage, and protection from vehicles. Networked equipment also needs dependable communications. Public use may require a different access and payment plan than employee or fleet charging.

When electrical capacity is limited, load management may let the system share available power according to schedules or vehicle demand. It is a control strategy, not a substitute for understanding the load. The design still needs defined limits, compatible equipment, operating rules, and a growth plan.

Denver’s 2025 Building and Fire Codes became effective December 31, 2025. The city states that drawings for new projects submitted after that date must use those codes. They incorporate the 2024 I-codes, except the Energy Code incorporates the 2021 IECC, along with Denver amendments.

For an August 2026 project, the design team should identify this code basis on the permit set and check current city policies before submission. The project scope should also assign responsibility for electrical design, other required disciplines, permit responses, inspections, and closeout. Do not let a proposal rely on an older code edition simply because early planning began before the effective date.

Colorado’s market includes advanced manufacturing, technology services, and transportation and logistics. Each setting creates a different charging problem, so the project should follow parking time and operating needs.

Ownership affects procurement, data, service response, user pricing, and long-term flexibility. A facility-owned system gives the owner direct responsibility for equipment and operations. A third-party arrangement may shift selected duties, but the contract must show what remains with the property.

In either model, define who controls driver accounts, payment rules, energy reports, software changes, warranties, repairs, and end-of-term equipment. Also confirm whether the charger can keep providing basic service during a communications outage. These terms belong in the buying decision because the installation becomes an operating asset after construction ends.

A commercial charging project crosses equipment supply, electrical construction, civil work, utility coordination, software, and ongoing service. The solicitation should give bidders the same basis of design. Otherwise, one proposal may include switchgear, pavement restoration, networking, and commissioning while another appears lower because those items are excluded.

Procurement should also address lead times and substitutions. Require approval before a charger, protective device, panel, transformer, or network platform is changed. A substitute must still fit the electrical design, mounting details, connectors, communications, load controls, warranty plan, and permit documents. Confirm who absorbs redesign or resubmittal work.

For phased projects, price the first operating phase and the shared make-ready work separately. Shared work can include distribution capacity, conduit, pull boxes, equipment pads, communications pathways, and space for later hardware. Evaluate lifetime cost through energy use, software fees, payment charges, inspections, preventive care, repairs, and replacement planning. Treat any tax credit or incentive as time-sensitive. Verify site eligibility, rules, deadlines, and tax treatment before using it in the approved budget.

A clear proposal lets the owner compare scope, risk, and operating value. Require these items in the same order from every bidder.