Case Studies

Hammersmith and Charing Cross hospitals go for energy efficiency with wholesale changeover to VSDs and EFF1 motors.

Deritend has completed the commissioning of over 70 individual EFF1 high efficiency electric motors coupled with matched variable speed drives at the Hammersmith Hospital’s NHS Trust. This scheme is part of an ongoing programme of works developed by the Trust in partnership with the Carbon Trust to reduce the Trust’s carbon emissions in line with Department of Health targets. The installation is projected to pay for itself within two years purely through energy savings.

An initial site survey highlighted opportunities for energy saving on fixed speed fans and pumps serving heating, ventilation and air-conditioning plant throughout the sites. High efficiency EFF1 motors and CFW09 variable speed drives from WEG were specified and are reckoned to provide a substantial combined energy saving of up to 25% over existing plant.