Networks launch voltage change consultation

Energy network operators are proposing to change voltage levels in a bid to better cope with new low carbon technologies.

Under the plans, the lower limit on the distribution network would be reduced to 207V, a 4% drop. 

The Energy Networks Association (ENA) said connection of technologies such as domestic solar generation and electric vehicle chargers to the grid from a single location can lead to over-voltage, which can cause household and commercial equipment to shut down when protective limits are reached.

It said the proposed change would give networks a greater scope to operate in.

Lawrence Slade, Chief Executive at the ENA, said: “The current voltage limits, established in 1995, were set conservatively high to ensure all customers received a consistent level of service across the whole network. Since then, technology has changed and more domestic low carbon generation and low carbon technologies have connected to our networks.

“Operators need the flexibility to adapt, including by reducing the voltage limits. At this stage in the process, we’re keen to listen to all stakeholders to ensure the proposals we are finalising after the consultation are effective for everyone.”