Applying for multiple connections of the same size throughout the country has provided the eFREIGHT 2030 project with valuable insights into the connections process. This case study looks at Voltempo’s experience so far in applying for new connections to the electricity distribution network.

To prepare for trials of electric Heavy Goods Vehicles (eHGVs), the eFREIGHT 2030 project lead, Voltempo, has been applying for connections to the electricity networks for high-capacity chargers throughout the country. The locations of the connection sites are chosen based on national freight routes, but the local conditions of the area and electricity network are variable across the country. The key factors which influence the connection of the charger and their main effect are:

• which Distribution Network Operator (DNO) region it is in affects the processes the connection applicant must follow;
• the distance to the Point of Connection (POC) to the existing distribution network impacts the cost;
• the availability of network capacity influences the timescales of the connection.

Some of the connections have been straightforward, whereas others have faced these challenges because of the location of the site. The connection process, the timeline for connection and the cost of the connection can therefore feel like chance.

The first local factor is which DNO region the connection site is in. There are six DNOs in Great Britain (GB) who operate the distribution network in their regions, and each run their own connections process. Voltempo have needed to adapt to the working style and process of each DNO. Standardisation of the connections process across GB would support national programmes such as the eFREIGHT 2030 project.

The second local factor is the proximity of the charging site to the POC and any obstacles there may be on the way. Site costs can vary depending on complexity with complicated sites being significantly more than the budget of sites with straightforward connections.

The third local factor is network capacity. The availability of network capacity varies across the country, with some connections able to connect as soon as the charger is ready for installation, while others face delays of years while the network is reinforced to provide the required headroom. Better understanding of where eHGV charging infrastructure will be needed will help DNOs incorporate appropriate upgrades into their strategic plans.

Long-term collaborative solutions are required to support the decarbonisation of HGVs. Enabling easy, timely connections to the network will aid the speed at which freight can decarbonise using eHGVs.