You've got staff asking where the EV bays will go, a fleet manager looking at electric vans, or a property owner wondering whether the existing car park can support charging. The natural first thought is to choose a charger and get it fixed to the wall.
On a commercial site in Dublin, the charger is usually the straightforward part. The difficult questions involve available electrical capacity, the route from the intake to the parking spaces, trenching, planning, grant approval, network controls and certification. A sound project answers those questions before equipment is ordered.
Table of Contents
- What a Commercial EV Charger Project Actually Involves
- Site Survey and Load Assessment
- Choosing the Right Charger Type and Power Level
- Electrical Infrastructure Upgrades and Civil Works
- Permits, Planning and Irish Building Regulations
- Grants, Funding and Cost Considerations
- Testing, Certification, Handover and Ongoing Maintenance
What a Commercial EV Charger Project Actually Involves
Most commercial EV charger installations start with a site that looks simpler than it is. An office may have a convenient wall beside the staff car park, but the distribution board could be full, the incoming supply may have little spare capacity, or the proposed cable route may cross a busy access road. A depot might have plenty of land, yet need substantial civil works before a single van can charge.
The work normally moves through a connected sequence:
- Site survey: The contractor checks the intake, distribution boards, parking layout, cable routes, communications coverage and practical working conditions.
- Load assessment: Existing building demand is reviewed alongside the proposed charging load, with consideration for future bays and load management.
- Grid discussion: Where supply capacity is uncertain, the contractor may need to raise a query with ESB Networks before the design can be finalised.
- Design and equipment selection: Charger output, mounting, protection, access control, billing and smart charging are matched to how the site will operate.
- Civil and electrical works: The build may include dedicated circuits, board upgrades, ducting, trenching, feeder pillars, plinths and surface reinstatement.
- Funding and compliance: Grant forms, product eligibility, planning checks and certification need to be handled in the correct order.
- Testing and handover: The installation is commissioned, documented and handed over for daily operation and future maintenance.
A small staff installation can often be planned over a few weeks, while a multi-bay depot may take several months. The timing is usually controlled by paperwork, supply capacity and ground conditions, not by the time needed to mount the charging unit.
Practical rule: Don't buy the hardware before the contractor confirms the supply, cable route and grant position. A charger that suits a brochure may not suit your building.
The project typically involves the client, a Safe Electric Ireland registered contractor, ESB Networks where supply changes are needed, the charger or network provider, and sometimes the local authority. Agreeing who owns each task at the outset prevents the familiar late-stage problem where everyone assumes somebody else has dealt with planning, grant approval or communications.
Site Survey and Load Assessment
A proper survey is where a commercial project earns its reliability. The contractor isn't just measuring the distance to the nearest wall socket. They're establishing whether the building can safely support the intended charging load and what needs to change before construction begins.
What the electrician checks on site
The first inspection normally includes the main intake, meter position, main switchgear and existing distribution boards. The electrician looks for spare capacity, suitable ways for new protective devices, the condition of equipment and the available space for additional boards or control equipment.
The incoming supply matters. A site with a single-phase supply needs a different design from one with three-phase power, particularly where several vehicles need to charge together or where higher-output equipment is being considered. The contractor also reviews the building's normal demand, because spare capacity isn't the unused space in a board. It's the capacity that remains after existing loads and operating conditions are taken into account.
Why the parking plan affects the electrical design
The proposed bays should be marked on a site plan, not chosen only because they're closest to the reception entrance. Cable length, vehicle movement, accessibility, lighting, protection from impact and future expansion all affect the layout.
A competent survey records the route from the electrical source to each charger location. It identifies whether cables can run through existing ducts, along a building façade, overhead where appropriate, or below ground. It also flags surfaces that may be difficult to reinstate, such as concrete, tarmac, paving or areas.
Have the following ready before the visit:
- Existing information: Incoming supply details, electrical drawings, board schedules and any previous upgrade records.
- Operational plans: Vehicle numbers, staff parking patterns, delivery schedules and whether customers or visitors will use the chargers.
- Site documents: A current parking plan, property boundaries and details of planned building works.
- Future requirements: Any intention to add more bays, battery storage or other significant electrical loads. A discussion about commercial battery storage systems can be useful where charging and energy management are being considered together.
The survey should produce more than a charger count. It should give you a design basis, a list of assumptions, a clear note of constraints and a sensible route to an ESB Networks capacity query if one is required.
Choosing the Right Charger Type and Power Level
The right power level depends on how long vehicles remain on site, not on the highest figure printed in a supplier's catalogue. A car parked throughout the working day has a very different requirement from a delivery van that returns briefly between routes.
AC charging is generally the practical starting point for offices, workplaces, hotels and many depots. Lower-output equipment can work well when dwell times are long, particularly when several bays share the site's available capacity through load management.
Comparing common commercial options
A 7kW single-phase AC charger suits a staff bay, landlord-controlled parking area or small workplace where vehicles remain parked for several hours. It places a more modest demand on the supply than higher-output alternatives, although the final design still needs proper protection and load assessment.
A 22kW three-phase AC charger can suit commercial fleets and destination sites where vehicles need more energy during the day and the building has suitable three-phase capacity. The vehicle itself must also be able to accept that rate, so the charger's rating alone doesn't determine the actual result.
A DC rapid charger changes the nature of the project. It suits fleet operations, busy customer sites and short turnaround use, but it can require much more substantial electrical infrastructure, careful demand management and a stronger business case. It isn't automatically the best choice for a workplace where cars sit all day.
| Power Level | Typical Use Case | Approximate Range Added Per Hour |
|---|---|---|
| 7kW single-phase AC | Staff parking, workplace bays and long-dwell destination charging | Depends on the vehicle, battery and charging conditions |
| 22kW three-phase AC | Commercial fleets and sites with suitable three-phase supply | Depends on the vehicle's onboard AC capability |
| DC rapid charging | Fleet turnaround and short-stay customer charging | Depends on charger output and the vehicle's DC acceptance |
Features that matter after installation
For several bays, ask about dynamic load balancing. This allows the system to share the available electrical capacity instead of treating every charger as if it will run at full output at the same moment. It can make a phased rollout more practical, but it doesn't remove the need for a properly calculated design.
Network connectivity, user access, payment controls, usage reporting and remote fault alerts should be selected around the operating model. Staff-only charging may need simple identification and reporting, while a public-facing retail site may need payment processing and clearer user controls.
A mixed installation can be sensible. For example, a depot may use AC chargers for overnight parking and reserve rapid charging for vehicles on tight schedules. Identical units are easier to manage, but a mixed fleet can match different dwell times more effectively.
Electrical Infrastructure Upgrades and Civil Works
Once the design is agreed, the project becomes a coordinated building job rather than a simple electrical call-out. The contractor may run dedicated circuits from the main intake, install a sub-board closer to the car park, upgrade protective equipment or create a new distribution point for the charging area.
What the electrical build includes
The installation method depends on the site. Wall-mounted chargers can reduce the need for standalone supports where a suitable structure is nearby. Open car parks often need feeder pillars, pedestal-mounted units, impact protection and underground ducting. Larger layouts may require separate containment routes for power and communications.
The electrician sizes cables, protection and switching equipment to the approved design. Where the existing board has no suitable spare ways, an upgrade may be needed. Where the distance is long, the voltage drop and cable route can influence the choice of distribution point as much as the charger's headline power.
Why the ground works cause surprises
Trenching is where an apparently tidy quotation can meet the site. Before excavation, the contractor needs to consider existing services, drainage, lighting cables, water mains, telecoms routes, access requirements and the depth and construction of the surface. A drawing may show a clear route, while the ground reveals unrecorded concrete or an old service crossing the intended line.
Shared routes can make a multi-bay project more efficient because one properly designed duct route may serve several chargers. That doesn't mean every future bay should be connected immediately. Installing suitable ducting and leaving capacity for expansion can reduce later disruption, provided the design and funding position support it.
Expect the work to be coordinated around the business:
- Access control: Parts of the car park may need to close while excavation or lifting takes place.
- Surface reinstatement: Tarmac, paving, concrete and landscaping each require different repair approaches.
- Weather planning: Wet conditions can affect excavation, concrete and reinstatement.
- Business hours: Hotels, retail sites, offices and depots may need phased work to keep vehicles moving.
- Safety management: Barriers, signage and controlled work areas protect staff, visitors and the installation team.
A Safe Electric Ireland registered contractor should manage the electrical construction, testing and certification. The client should receive clear notice of any change caused by ground conditions or concealed services before additional work proceeds.
Permits, Planning and Irish Building Regulations
Commercial charging projects in Ireland sit at the intersection of electrical compliance, grant conditions, planning and building requirements. These aren't separate boxes to tick at the end. The order matters because grant approval may need to come before electrical work, while the design must already reflect the building and site rules.
The checkpoints that protect the project
For Irish commercial installations, three technical checks deserve early attention:
- Contractor registration: The charger should be installed by a Safe Electric Ireland registered contractor.
- Product eligibility: The equipment should appear on the SEAI Triple E Product Register where the relevant scheme requires it.
- Approval timing: Grant approval must be received before work starts. Beginning early can put eligibility at risk.
Planning permission depends on the property and the scope of works. Some charge points may be exempt, but a business shouldn't assume that a larger car park rollout, new structures or changes to the site can proceed without a local planning check. The practical answer is to have the contractor identify the planning question early and involve the local authority where necessary.
The parking thresholds businesses should know
For non-residential buildings with more than 20 parking spaces, the EU Energy Performance of Buildings Regulations require at least one recharging point in existing buildings by 1 January 2025, as set out by the Irish Government's regulations announcement. That threshold is directly relevant to many Dublin offices, retail properties, hotels and managed commercial car parks.
The rule differs for buildings containing one or more dwellings. Where a new building or major renovation has more than 10 parking spaces, ducting infrastructure must be installed for each car parking space to allow later charger installation, rather than requiring a charger at every space immediately, under the Irish statutory regulations.
Larger non-residential new-build or major-renovation projects with more than 10 spaces can also involve a recharging point and ducting for future provision. The exact application depends on the building type and works, so use the design stage to confirm the position rather than relying on a general assumption. Forward Electrical's overview of Irish electrical regulations can provide useful background, but site-specific planning and compliance questions should be checked professionally.
Grants, Funding and Cost Considerations
Funding affects the design before the first cable is installed. In Ireland, the SEAI Workplace Charging Grant covers up to 60% of eligible installation costs, capped at €5,000 per charge point, according to the Irish grant guidance. The important operational condition is that approval must be secured before electrical work begins.
The usual order is practical:
- Assess demand and capacity: Confirm how many vehicles need charging and what the site can support.
- Check eligibility: Review the grant conditions and equipment requirements.
- Obtain approved installer quotations: The scope should identify charger hardware, electrical work and civil works clearly.
- Submit the application: Wait for approval before starting electrical work.
- Build and document: Keep the invoices, photographs and completion evidence needed for reimbursement.
- Submit the completion pack: The grant administrator assesses the evidence before payment.
A separate ZEVI commercial charging support scheme offers up to €4,000 per charger and funding for up to 40 chargers per site, as described in this Irish commercial charger installation guide. That cap and site limit influence how a multi-bay project is phased. A business may decide to install the operationally essential bays first, while preparing ducting and board capacity for later expansion.
Funding point: A grant reduces eligible expenditure, not every item that appears on a contractor's invoice. Design, trenching, board changes, surface repairs and network services need to be checked against the relevant scheme.
The final project cost depends on the number of bays, charger type, cable distance, ground conditions, distribution board work, communications and smart charging controls. A short route to a suitable board may be relatively uncomplicated, while a distant car park with difficult excavation can change the balance completely. A clear breakdown is more useful than a low headline figure that excludes the work needed to make the chargers function safely.
For a separate discussion of the variables involved, see this guide to EV fast charger installation cost.
Testing, Certification, Handover and Ongoing Maintenance
A charger isn't ready for business use when the screen lights up. The final stage confirms that the installation is safe, the controls work as designed, the network is configured correctly and the client has the records needed to operate and maintain the asset.
What happens before handover
The contractor tests the new circuits, protective devices, earthing arrangements, isolation points and charger operation. Each unit is commissioned against the agreed settings, including power limits, access permissions, load balancing and any billing or reporting functions.
The installer also checks practical operation. Cables should sit safely in their holders, bays should be clearly identified, protective posts should be secure where required, and users should understand how to start and end a session. A depot needs a different handover from a hotel or office. Fleet managers may need user permissions and charging schedules, while facilities teams may focus on fault alerts, resets and access to monitoring data.
The documentation pack should be treated as part of the installation, not an afterthought. It may include:
- Electrical certification: Safe Electric certification and relevant test results.
- As-installed information: Final circuit details, board identification and charger locations.
- Product records: Manufacturer information, serial numbers, warranties and approved settings.
- Operating details: Network account information, user access arrangements and support contacts.
- Maintenance records: Inspection recommendations, service notes and any outstanding observations.
- Grant evidence: Invoices, photographs and completion documents required by the funding scheme.
Safe Electric certification is particularly important for the owner and the facilities team. It demonstrates that the electrical work has been tested and recorded by the registered contractor, and it gives the next electrician useful information if the site is expanded or altered later.
Why maintenance protects availability
Commercial chargers live in exposed and busy environments. They face rain, dirt, repeated cable handling, vehicle movement and occasional impact. A fault that would be a minor inconvenience at home can become an operational problem when employees depend on the bays or a depot needs vehicles ready for the next route.
A planned maintenance arrangement gives the site a defined way to deal with inspection, cleaning, protective equipment, firmware or network issues and physical damage. The right schedule depends on the equipment, location and usage, so it should be agreed with the installer and manufacturer rather than copied from another site.
Software monitoring can identify chargers that are offline, repeatedly failing sessions or losing communication. Remote information doesn't replace an electrician, but it can help the facilities team distinguish a user issue from a hardware or supply fault and arrange the right response sooner.
Handover advice: Ask who receives the fault alert, who is authorised to attend, what information the service provider needs and how a charger is taken out of use safely after impact damage.
Load management should also be reviewed after the site is occupied. The original design may have been based on expected staff, visitor or fleet demand. Actual usage can reveal that some bays are heavily used while others sit idle, or that charging schedules need adjustment to avoid unnecessary simultaneous demand.
A practical project checklist
Before asking for a quotation, prepare:
- A site plan: Mark parking spaces, proposed charger positions, access routes and any areas that can't be closed.
- Electrical records: Provide incoming supply information, board schedules and details of other planned electrical loads.
- Usage requirements: Explain who will charge, when vehicles arrive and leave, and whether payment or access control is needed.
- Expansion plans: State whether more bays may be needed later, even if the first phase is modest.
- Funding questions: Ask which scheme may apply, what evidence is required and when approval must be secured.
- Planning questions: Confirm whether the proposed layout, mounting and civil works need local authority review.
- Handover expectations: Request certification, test results, warranties, operating information and maintenance recommendations.
Common concerns usually have a practical response. If the existing supply is too small, the contractor can investigate load management, a phased rollout or an ESB Networks capacity route. If planning is unclear, pause the build long enough to obtain a site-specific answer rather than risking a late change. If the budget is tight, prioritise the bays that solve the immediate operational need and design the containment and distribution with sensible future provision.
The SEAI Commercial Fleet Trial report gives useful context for Irish operators. It engaged 187 businesses, and participants drove an average of over 3,000 km every three months, with charging needed about every three days. 92% of charging took place on chargers provided at business premises or at home, while the recorded average three-month distances were 3,700 km for cars and 4,400 km for vans. Estimated tailpipe emissions avoided over the trial period were 512 kg for cars and 529 kg for vans. For a business considering fleet electrification, that supports a straightforward design question: what can be charged reliably at the workplace or depot?
A commercial EV charger installation should therefore finish with more than working equipment. It should leave the owner with a tested electrical system, clear certification, a usable operating model and a maintenance route that keeps the charging bays available.
Forward Electrical provides commercial EV charger installation, site assessment, electrical infrastructure work and certified handover support for businesses across Dublin and North County Dublin. If you're planning staff, visitor or fleet charging, visit Forward Electrical to discuss your site, grant requirements and the right next step with a Safe Electric registered contractor.