Ireland pilots EV depots as grid assets in new flexibility market project

A new project in Ireland is linking EV fleet depots to electricity flexibility markets for the first time, with An Post and DHL Express Ireland among the initial participants. The pilot aims to cut charging costs, create new revenue opportunities and help stabilize the grid as renewable power grows.

Why it matters: - The project shows how EV depots can function as grid assets, not just charging sites. - Fleet operators can potentially lower electricity costs and generate revenue from flexible demand. - Ireland’s power system can gain extra flexibility as more wind and other renewables come online. - Coordinated fleet charging can help balance supply and demand without disrupting daily operations.

What happened: - VIOTAS, Mitsui Ireland, ESB’s Smart Energy Services, eStation and The Mobility House Solutions launched a project in Ireland that connects EV fleet depots to electricity flexibility markets. - The first participants are An Post and DHL Express Ireland. - The pilot covers sites in Cork and Galway for An Post and Dublin for DHL. - The project includes 211 electric vehicles, 181 charging points and up to 0.5 megawatts of flexible electricity demand.

The details: - The system lets fleet depots adjust electricity demand based on conditions on the power system while still charging vehicles before they go back on the road. - VIOTAS provides access to EirGrid’s electricity flexibility markets and the market interface for shifting demand. - The Mobility House Solutions and eStation supply, install and manage the charging and energy system that coordinates charging across multiple vehicles. - Mitsui Ireland, through its partnership with ESB’s Smart Energy Services, provides EV charging solutions for fleet depots in Ireland. - An Post operates more than 2,100 electric vehicles and says over half of its final-mile fleet is fully electrified. - An Post aims to reach net-zero carbon emissions across its operations by 2030. - DHL Express Ireland is using the project to support its broader “Mission 2050” net-zero strategy.

Between the lines: - The pilot reflects a shift from treating fleet charging as a fixed operating cost to treating it as a flexible energy asset. - Large fleets spend long periods plugged in, which makes them useful for shifting demand away from periods of grid stress. - The project also tests whether smart charging and market participation can help fleets manage the higher costs that can come with electrification. - The collaboration brings together logistics operators, charging providers and grid-flexibility specialists, signaling that fleet electrification is becoming an energy-system issue as much as a transport one.

What's next: - The partners expect projects like this to play a larger role as electric fleets expand across Ireland and Europe. - The pilot will help show whether depot-level flexibility can scale while keeping logistics operations reliable. - If the model works, more fleet operators could use charging patterns to support renewable integration and earn additional value from their energy use.

The bottom line: - Ireland is testing a new model for EV fleets: charge the vehicles, support the grid and potentially pay less to do it.

Quotes: - Shane Mullarkey of Mitsui Ireland said the pilot shows how large EV fleets can act as a distributed battery resource and provide balancing services to the grid. - Kevin Hourigan of ESB Smart Energy Services said the project can reduce total fleet operating costs, support renewables and accelerate the green transition. - Robert Flanagan of VIOTAS said the initiative can unlock new revenue opportunities while helping build a more flexible and resilient electricity system. - John Smith of An Post said the company sees the project as part of its push for a lower-carbon and more resilient energy future. - John Leonard of DHL Express Ireland said the project aligns with the company’s sustainability goals and can deliver cost efficiencies while supporting the grid. - Heiko Bayer of The Mobility House Solutions said the pilot shows charging can be managed reliably within existing grid constraints. - Eamonn McSweeney of eStation said electric fleets can generate new revenue streams while supporting the stability of the national grid.

More information: VIOTAS, The Mobility House Solutions, eStation