Michael Hamill explains why an evaporative wet cooling system is the ultimate ‘green machine’.

Air-source heat-pumps are a well tried and very cost-effective way of harnessing renewable energy — according to figures that Darren Manley of Daikin UK shared with Ken Sharpe.

The UK should follow the example being shown by Germany, which is taking radical steps to stimulate its already relatively healthy market for micro-generation and renewable technologies, according to leading British sustainability experts.

What can educate and encourage building owners and occupiers to manage energy performance effectively? The answer could be staring us in the face. Richard Hipkiss considers the value of Energy Performance Certificates and Display Energy Certificates.

Preventing legionella in solar-thermal hot water systems needs a thoughtful approach to avoid wasting the potential of the solar energy. Yan Evans explains.

40% can be lopped off carbon emissions associated with lighting — using current technology. Mike Simpson runs through a range of approaches.

The huge energy-saving capabilities of replacing aging chillers with new models incorporating the Danfoss Turbocor compressor in two recent projects is described by Ken Sharpe.

Integrating variable-speed pumps into the system they serve is the way to maximise energy savings. Wayne Rose explains how.

CIBSE gold medallist and former president Brian Moss believes the expertise of engineers could transcend politics in reducing energy consumption and carbon emissions — even to the level of CIBSE partnering with the Government.

Large pipe projects are more often prefabricated off site than installed on a site — and smaller projects are catching up with this trend.

Following on the success of last-year’s carbon clean-up campaign, which saw 700 organisations sign up to reduce carbon emissions, CIBSE is embarking on a similar campaign this year — with incentives to participate.

The redeveloped Woodside Leisure Centre at Watford exploits a range of technologies to reduce its energy requirements — and then meet much of them usable renewable energy — as Ken Sharpe discovered.

Not only can switching to white LED lighting from other light sources bring big improvements in radically reduced maintenance and increased energy efficiency, but LEDs also deliver many more practical and business benefits. Roy Burton explains what LEDs can bring to the world of modern building services.

Rapidly, and seemingly inexorably, rising fuel costs gave added meaning to the recent CIBSE Conference on ‘Sustainability — niche to norm’ in Gateshead because, quite simply, reducing fuel bill reduces carbon emissions.