[5][6][7] Electricity North West's technology known as CLASS (Customer Load Active System Services) reduces demand for electricity on local distribution networks, helping manage spikes in demand nationally.

The company is ultimately owned by a consortium led by Kansai Electric Power Co. Inc; Equitix; and CNIC.

The distribution network had originated as NORWEB, the state-owned North West Electricity Board from 1948 to 1990.

On 19 December 2007, United Utilities Group plc sold United Utilities Electricity Limited to North West Electricity Networks (Jersey) Limited, a company advised by Colonial First State Global Asset Management and the Infrastructure Investment Group, which is advised by JP Morgan Asset Management.

UUES was subsequently renamed Electricity North West Services Limited (‘ENWSL’).