1. Ground-source heat pumps

14 January, 2009

A ground-source heat-pump system at Mitsubishi Electric’s headquarters at Hatfield is linked to closed-loop coils laid in trenches to extract energy from the ground and help the system perform over 300% more efficiently than a traditional chiller/boiler combination.

The ground-source heat pump, used either in borehole or slinky installations, is a long-established technology in many areas of northern Europe. As targets for reducing carbon loom ever closer and energy prices continue to rise in the UK, the technology is becoming increasingly attractive. Heat pumps extract energy from the Sunlight that heats up the Earth. They convert this low-grade heat into high-grade heat. Even taking into account energy losses from electricity transmission, ground-source heat pumps offer impressive efficiencies. Most ground-source heat pumps have a coefficient of performance of around four.

Industry leaders gather at CIBSE’s Measuring Performance and Facilities Management conference

CIBSE’s Measuring Performance and Facilities Management conference recently brought together leading voices from across the built environment to explore the evolving landscape of building performance and operational excellence.

Independent testing crucial to bridge retrofit confidence gap, BSRIA study reveals

New research from the Building Services Research and Intelligence Association (BSRIA) highlights a significant confidence gap between construction professionals and the general public regarding the effectiveness of building retrofits.

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