NIE Networks has introduced a new design standard for domestic connections to its network in Northern Ireland, following a consultation held earlier this year. The standard came into effect on 1 November 20231.
Under the previous approach, when a customer requested a connection the network was designed and equipped to facilitate that request. NIE Networks states that this remains the case to an extent, but that demand on the network is much higher than before and is likely to increase1. The consultation, launched earlier this year, sought views on how best to accommodate the future installation of electric vehicle chargers and heat pumps1.
NIE Networks reports that feedback suggested broad support for designing new connections capable of supporting a higher capacity. It states that in some cases this will increase the cost, associated with assets, for customers connecting for the first time. It adds that because the work is carried out at the time of the new connections, it avoids costly upgrade works and associated local disruption1.
"The new design standard will come into effect on 1st November 2023"
The company says the change will ensure the network is future proofed for a net zero future1. No figures for the scale of any cost increase, and no detail of the technical capacity now provided, have been reported1.
Why it matters for households
A domestic connection is the point at which a home meets the electricity network, and its capacity sets a ceiling on what can be run at once. Where a connection is sized only for the loads known at the time, adding a heat pump or an electric vehicle charger later can require the connection or local network assets to be upgraded, with the cost and disruption that involves. Designing for higher capacity at the outset shifts that consideration to the point of first connection.
For a household, the practical effect is that a new connection in Northern Ireland should be able to carry more load without later reinforcement work. That bears on energy independence in the narrow sense of what a home can run from its own supply point: a heat pump and a vehicle charger are two of the largest domestic electrical loads, and a connection that accommodates them reduces the chance that a future installation is limited by the connection itself. The trade-off reported by NIE Networks is that some first-time connectors will pay more, because the assets are provided up front rather than added later1.
The standard applies to new domestic connections. It does not change existing connections, and no process for upgrading an existing connection under the new standard has been reported1. The network in Northern Ireland is operated by NIE Networks, with the transmission system run by SONI and the wholesale market arrangements described in Energy Supply in Northern Ireland. Connection design sits alongside the Building Regulations in Northern Ireland and the work of the Utility Regulator.
What happens next
The standard took effect on 1 November 20231. No further review date, transition arrangements for applications already in progress, or published cost figures have been reported1.