Gridserve takes first UKPN flexible demand connection through an IDNO

UK Power Networks is using its smart-grid control system to manage electricity demand at Gridserve’s Cobham charging hub through an independent distribution network.

This is the first time a fully flexible demand customer has connected to its Distributed Energy Resources Management System (DERMS) through an Independent Distribution Network Operator, or IDNO, according to UK Power Networks. 

So, what does that all mean? Well, Gridserve has connected to ESP Utilities Group’s network rather than directly to UK Power Networks, but that doesn’t mean there will always be enough electricity on the network to meet the full capacity of the chargers located at Cobham. 

That’s where DERMS comes in. If the local network can’t safely provide all the power a site wants, rather than installing new cables, substations or other upgrades, DERMS can use the spare capacity that already exists but reduce electricity use when the network becomes too busy. 

The DERMS system monitors the network and can then tell a connected site to lower its demand when necessary. That means Gridserve may find that all of its chargers won’t be able to charge at max speed at all times, but for the company, that’s a better alternative than not having the ability to install any chargers due to grid constraints. 

Of course, DERMS isn’t exactly new. UK Power Networks has used the system for flexible connections for several years, including as part of plans to release 4GW of network capacity announced in 2023.

What is new is the fact that UK Power Networks now has its first fully flexible demand customer using DERMS through an IDNO connection, this follows the opening up of the system to IDNOs earlier in 2026. 

Daniel Saker, Head of Network Strategy at UK Power Networks Distribution System Operator, noted, “This is a landmark moment for UK Power Networks as we bring a new connection offering to IDNO customers. By enabling smarter, more flexible connections, we’re helping businesses and communities get their low-carbon projects online faster and more efficiently.”

The development comes as Gridserve increases the amount of high-power charging available at Cobham. Another 24 charging bays capable of supplying up to 400kW were installed at the service area earlier this year.

That expansion forms part of Gridserve’s wider work with Extra, with the operator already expanding its Electric Super Hub network across the motorway service provider’s sites.