The Bolton TRF was looking for viable ways to make substantial energy savings. One of the technologies considered by the onsite engineering team was power optimisation offered by GWE. Voltage optimisation and power factor correction offer two different, but complementary power saving techniques.

Voltage optimisation directly reduces the amount of power drawn by the connected equipment by supplying it at a voltage nearer to its design voltage, whereas Power factor is a way of describing how efficiently electrical power is consumed.