EV Charging Infrastructure in Irish Commercial Buildings — An ELV Designer's 2025 Guide

EV charging infrastructure has become a standard scope item on Irish commercial building projects in 2025. The Planning and Development Act 2024, Part L amendments, SEAI sustainability requirements and occupier expectations have combined to make EV charging provision mandatory on new Irish commercial buildings with car parks — and a planning and lease negotiation issue on existing buildings being refurbished or re-let. For ELV and ICT consultants, EV charging infrastructure design in Ireland is a growing scope that intersects electrical load management, BEMS integration, smart charging protocols and fire safety considerations that are specific to lithium-ion battery vehicles.

The Regulatory Landscape — EV Charging in Ireland in 2025

Three regulatory drivers make EV charging infrastructure mandatory or commercially necessary on new Irish commercial building projects:

• Planning and Development Act 2024 — Implements the EU EPBD requirement for EV charging infrastructure. New commercial buildings with car parks above 10 spaces must provide a minimum proportion of EV-ready spaces (pre-wired conduit and sub-panel provision). Regulations require at least one operational charge point per car park for buildings above specified floor area thresholds.
• Part L Building Regulations — NZEB requirements for new commercial buildings include renewable energy and smart energy management provisions that integrate with EV charging as a flexible load.
• Occupier and investor expectations — ESG reporting requirements for Irish commercial property investors and occupiers create market pressure for EV charging provision beyond regulatory minimums. Dublin Grade A office buildings, Cork business parks and Galway tech campus developments are specifying EV charging as a standard fitout element.

ELV Design Considerations for EV Charging Infrastructure

Electrical Supply Capacity and Load Management

The single most important design decision for EV charging infrastructure in Irish commercial buildings is the electrical supply capacity assessment. A 100-space commercial car park fully provisioned for 22kW AC charging represents a peak load of 2.2MW — the same order as the entire building's existing electrical demand. This is never achievable from a standard DNO supply without extensive grid reinforcement. Dynamic load management is not an add-on to EV charging design in Ireland — it is a fundamental requirement.

The load management strategy must be determined before the EV charging specification is finalised. It should consider: the building's existing maximum import capacity; the available headroom above existing peak demand; the number of simultaneous charging sessions likely at any one time (typically 20–30% of total installed capacity during peak demand periods); and CRU's smart meter demand management capabilities.

Cable Containment, Earthing and EVSE Protection

The ELV design scope for EV charging infrastructure in an Irish commercial car park includes: dedicated cable containment routes from the electrical sub-distribution board to each EV charging zone; protective earthing and earth fault protection design to IS 10101 (National Rules for Electrical Installations); tamper-resistant cable protection in exposed car park locations; IP54 minimum enclosures for all charge points and junction boxes in car park environments; and surge protection on all EVSE circuits.

Smart Charging and OCPP 2.0 — Design Requirements

OCPP 2.0 (Open Charge Point Protocol 2.0 and 2.0.1) is the open communication standard between EV charge points and Charge Point Management Systems (CPMS). Specifying OCPP 2.0-compatible charge points is essential for Irish commercial building EV charging systems in 2025 because it enables:

• Dynamic load management — The CPMS can automatically reduce per-charge-point power allocation when building demand approaches the supply limit, preventing demand charges and avoiding supply upgrade requirements
• Smart billing and access control — Charging sessions can be authenticated by RFID card, mobile app or credit card, with per-session billing and reporting for employer workplace charging schemes
• Remote monitoring and diagnostics — Charge point faults can be detected and resolved remotely, reducing maintenance call-outs for Irish facilities managers
• Grid signal integration — Future integration with EirGrid demand response signals, allowing building operators to participate in grid flexibility programmes through the charge point management system

Dynamic Load Management — Preventing Grid Overload

A dynamic load management system continuously monitors the building's total electrical consumption from the smart meter or BEMS sub-metering data, and allocates available charging capacity across active charging sessions in real time. When building demand increases (a large HVAC load starts, an industrial process begins), the dynamic load management system automatically reduces the power allocated to EV charging sessions to keep total consumption within the supply limit. This is specified as a standard feature on all Irish commercial EV charging installations above a defined number of charge points — typically 5 or more simultaneous charging stations.

BMS Integration for EV Charging Load Optimisation

Integrating the EV charging management system with the building BEMS creates an opportunity for intelligent load scheduling that standard dynamic load management cannot deliver. A BEMS-integrated EV charging system can: schedule charging sessions during off-peak electricity tariff periods; shift EV charging load to periods of high solar PV output from the building's renewable energy system; and participate in SEAI demand response programmes by automatically reducing EV charging load during demand events in exchange for grid flexibility payments.

For Irish commercial buildings targeting BREEAM or WELL certification, BEMS-integrated EV charging contributes to energy management credits and demonstrates the sustainable transport infrastructure credits required by both standards.

Fire Safety Design for EV Charging in Irish Car Parks

Lithium-ion battery fires are chemically distinct from conventional vehicle fires and create specific fire safety design requirements for EV charging infrastructure in Irish car parks. Department of Housing guidance and updated Irish fire authority requirements address this risk:

• Increased sprinkler provision in enclosed Irish car parks serving EV charging areas — the Irish Fire Certification guidance (2024) recommends sprinkler heads at reduced spacing in EV charging zones
• Enhanced natural or mechanical ventilation in enclosed car parks with EV charging — lithium-ion fires produce toxic gases (HF, CO) that require extraction rates above those designed for conventional vehicles
• Fire detection covering all EV charging zones — addressable heat detectors at reduced spacing, with the alarm response coordinated with the fire alarm system's standard zone activation
• Separation between EV charging bays and structural elements, egress routes and fuel storage where car park geometry allows
• Fire suppression preparation for future automatic suppression in EV charging zones of new enclosed car parks

See our ICT consultant Ireland and fire alarm design Ireland pages for the relevant ELV design services that support EV charging infrastructure design in Irish buildings.