Define the service before buying hardware

Workplace charging can serve three different jobs: replenishing company vehicles, helping employees who cannot charge at home, and offering charging to visitors or customers. Each job has a different parking pattern, access rule and accounting need. Write down who may plug in, when, how much energy they normally need and whether charging is free, reimbursed or billed before asking installers for equipment quotes.

Use measured travel data where it exists. A vehicle that returns with 25 kWh to replace and remains parked for eight hours needs only a little over 3 kW on average; it does not need to draw 22 kW continuously. Repeat that calculation across the fleet and the busiest overlap period. Treat future vehicle numbers as a planning scenario, not as current demand, and reserve physical and electrical expansion paths rather than installing every socket on day one.

  • Separate fleet, employee and visitor use cases in the written brief.
  • Record arrival charge, departure time and energy added for at least two representative weeks.
  • Decide who pays and what evidence payroll or accounting needs.
  • Ask for an expandable design, including spare cable routes and switchboard capacity.

Choose power for dwell time, then manage the peak

For cars parked through a working day, several managed AC connectors are often more useful than one high-power unit. The important design figure is the site's shared power limit, not the sum of every charger's badge rating. Dynamic load management can reduce charging when the building is busy and distribute available power between connected vehicles, avoiding an unnecessarily large grid connection while still meeting departure targets.

Smart charging has a system-level benefit, but published modelling should not be mistaken for a guaranteed saving on one company's bill. An ICCT European case study estimated that managed charging could reduce the modelled grid peak by 6% in 2040 compared with unmanaged charging. A specific workplace result depends on its tariff, building load, solar production, vehicles and control rules; ask suppliers to model those inputs and state the assumptions.

Specify safe failure behaviour and manual overrides. Critical fleet vehicles may need a priority or minimum departure charge, while employee cars can share the remaining power. Connectivity loss should not strand the fleet, and the installer should document how charging continues if the management platform is unavailable.

Design the records around real business questions

A useful system identifies the user or vehicle, records kWh and timestamps, exports transactions and applies access groups. Those records support cost allocation and reimbursement, but they are not automatically a complete tax or payroll answer. Confirm the treatment of free or subsidised employee charging with a Portuguese accountant or the relevant national adviser, especially where private and business mileage mix.

In Portugal, MOBI.E describes a private-point model for companies and condominiums in which a Detentor de Ponto de Carregamento can connect private infrastructure to the national mobility network. Its guidance says this can let employees charge their own vehicles at work without the employer bearing their electricity consumption. That is an available operating model, not proof that it is the cheapest or simplest choice for every site; compare it with a closed system and obtain current commercial and legal terms.

Keep the charger-management contract portable where possible. Ask who owns the meters and data, how records can be exported, whether users can roam between sites, what happens if the platform closes, and whether another operator can take over the hardware. A low installation price can be poor value if the business is locked into opaque service fees.

Know which EU rule applies—and which does not

The recast Energy Performance of Buildings Directive sets charging and pre-cabling requirements for certain new, renovated and existing non-residential buildings. The exact obligation depends on factors including parking-space count, building work and national implementation. EU countries were required to transpose the directive by 29 May 2026, so a business planning work in September 2026 should check the law and permit guidance in the country where the car park is located rather than relying only on the directive's headline thresholds.

The European Commission says the revised buildings rules are intended to increase charging at homes and workplaces and emphasises smart charging. That policy direction supports installing controllable infrastructure, but it does not replace a site survey, fire-safety assessment, accessibility requirements, landlord consent or distribution-network approval where those apply.

AFIR focuses mainly on publicly accessible charging. If workplace units will be offered to the public or customers, confirm whether payment, price transparency, data and non-discrimination duties apply. A charger behind an employee gate is not automatically governed like a public motorway hub; access design can therefore change the compliance and operating model.

Pilot, measure and expand without disrupting the car park

Begin with a representative group and a clear review date. Track successful sessions, energy delivered, simultaneous demand, vehicles that miss their departure target, support incidents and blocked bays. Separate measured outcomes from comments: a driver saying that charging is 'always slow' is an anecdote; session logs showing repeated shortfalls before departure are evidence that the power allocation or usage policy needs adjustment.

Driver experience still matters. Short interviews can expose confusing authentication, cables that do not reach, inaccessible bays or staff who leave fully charged cars connected. Use those reports to find a testable problem, then verify it with observation or system records before buying more chargers.

Sources and legal guidance were checked on 3 September 2026. A practical first rollout is one that meets documented departure needs, keeps the building within its agreed power limit, produces usable cost records and can expand without replacing the first installation. Recheck national building, electrical, tax and public-charging rules before procurement because implementation and commercial terms continue to change.

  • Weeks 1–2: measure journeys, parking time and building demand.
  • Weeks 3–4: obtain a site survey and compare managed designs on the same assumptions.
  • Pilot: test access, billing records, priority rules and offline behaviour.
  • After 8–12 weeks: expand only where logs show unmet demand or credible near-term growth.