EV Infrastructure
EV Charging Station Installation for Public, Commercial and Fleet Sites
An EV charging station installation is an electrical infrastructure project wearing a consumer-product badge. The charger on the forecourt is the visible ten percent; the other ninety is the supply capacity, the transformer, the cable route, the civil works, the protection design and the network integration that make it dispensable power rather than expensive furniture.
Trivonix builds charging sites end to end for public networks, commercial destinations and captive fleets, and we start every one of them with the same question: what does the incoming supply actually have to give?
What this service covers
- Supply capacity assessed first
- Available sanctioned load, transformer headroom and upgrade cost established before the charger mix is fixed.
- Civil and electrical under one scope
- Trenching, foundations, ducting, cabling, protection and the chargers themselves delivered as one programme.
- Network-ready on day one
- OCPP integration, tariff configuration and payment flow tested before the site opens, not after the first complaint.
Public EV charging sites
A public charger has to earn revenue from strangers who have other options. That makes uptime, payment reliability and honest availability data more commercially important than headline power rating.
- Site selection driven by dwell time and traffic pattern — highway corridors reward high-power DC, retail destinations reward moderate-power units matched to shopping duration.
- Connector mix chosen for the local vehicle parc, typically CCS2 for DC alongside Type 2 AC, with legacy standards included only where genuinely required.
- Payment and access designed for a first-time user: app, RFID and card options, with clear pricing displayed before the session starts.
- Bay layout with cable reach checked against real vehicle port positions, plus accessible bays and adequate lighting.
- Weather protection, bollard placement and vandal resistance, since public assets are unattended most of the time.
Commercial EV charging hubs
For a hotel, mall, office park or workplace, charging is an amenity that supports the core business rather than a standalone revenue line. The design priorities shift accordingly.
Dwell times at these sites are long and predictable, which means moderate-power AC charging across many bays usually serves more vehicles per rupee of capital than a small number of high-power DC units. Load management then lets a modest supply serve a large number of connected vehicles by sharing capacity dynamically rather than provisioning for every bay at full power simultaneously.
Sizing without oversizing the supply
Simultaneous full-power demand from every bay almost never occurs. Dynamic load management measures the site's total draw and allocates spare capacity across active sessions, allowing bay count to grow well beyond what a static calculation would permit — often deferring an expensive supply upgrade entirely.
Access control and cost recovery
Whether charging is free, subsidised or billed, the site needs a way to identify users and account for energy. That may be RFID for staff, an app for visitors, or integration with an existing parking system.
Fleet charging infrastructure
Fleet depots are the most demanding charging environment and the most rewarding to engineer properly, because the duty cycle is known. Vehicles return on a schedule, park in known bays, and must be ready by a known time.
- Depot dwell window analysed against battery capacity and daily route energy to determine the minimum power per bay — often far lower than operators assume.
- Sequenced and staggered charging so the depot's peak demand stays within the supply agreement and avoids demand charges.
- Redundancy planning, because a fleet that cannot charge overnight is a fleet that does not run tomorrow.
- Telematics and charge management integration so vehicle state of charge drives charging priority.
- Space planning for depot circulation, since charging cables and parked vehicles change how a yard operates.
How a charging site gets built
The build sequence is consistent across site types, and the early stages carry most of the risk.
1. Feasibility and load study
Existing supply capacity, transformer loading, distribution board headroom and metering arrangement assessed. If a supply upgrade is required, the cost and utility lead time are established before anything else is committed.
2. Design and approvals
Single line diagram, protection and earthing design, cable routing, civil layout, and the applications required from the distribution utility and local authority.
3. Civil and electrical works
Trenching, ducting, charger foundations, cable pulling, distribution board and protection installation, earthing, and any transformer or switchgear work.
4. Commissioning and go-live
Earth loop impedance and RCD testing, charger functional testing at full power, OCPP connectivity verification against the management platform, end-to-end payment testing, and operator handover.
Frequently asked questions
How much does it cost to set up an EV charging station?
The chargers are frequently the smaller half of the budget. Cost is dominated by whether the site's electrical supply is adequate: a location with spare transformer capacity and a short cable route is far cheaper than one needing a supply upgrade, a new transformer or a long trench. That is why the load study comes before any quotation worth relying on.
How many charging points can my existing electrical supply handle?
More than a static calculation suggests, if dynamic load management is used. Rather than allocating full rated power to every bay, load management shares available capacity across active sessions in real time. On sites with long dwell times this often multiplies the viable bay count without touching the incoming supply.
Should a commercial site install AC or DC fast chargers?
Match power to dwell time. Where vehicles park for hours — offices, hotels, malls, residential — AC charging across more bays serves more vehicles per unit of capital. Where vehicles stop briefly — highway corridors, fuel forecourts, taxi ranks — DC fast charging is what makes the site useful. Many sites justify a small number of DC units alongside a larger AC array.
What approvals are needed for a public EV charging station?
Typically a load sanction or enhancement from the distribution utility, an appropriate metering and tariff arrangement, and local authority permissions for civil works and signage where the site is publicly accessible. Requirements vary by state and utility, so we confirm the specific pathway during feasibility rather than assuming a generic route.
How long does an EV charging station installation take?
Where the existing supply is sufficient, the physical build is usually a matter of weeks. Where a supply upgrade is needed, the utility's timeline governs the programme and can extend it considerably. We start the utility application as early as possible and run design and procurement in parallel with it.
Related services
- DC fast charger supplierSupply of AC and DC chargers — specified for connector standard, power band, protocol support and the environment they will actually live in.
- EV charging infrastructureNetwork-level planning and delivery — multi-site rollouts, grid capacity strategy, load management and standardised design across an estate.
- EV charger maintenancePreventive and corrective maintenance for charging assets — statutory electrical testing, connector servicing, remote diagnostics and uptime reporting.
- electrical installation servicesElectrical and mechanical installation delivered to method statements — cabling, panels, switchgear, structures and equipment, with quality records throughout.
Browse the full range of Trivonix engineering and clean energy services.
Planning a charging site?
Send us the location, the sanctioned load and how long vehicles typically stay. We will tell you what the site can support today and what it would take to do more.