CIBSE’s Retrofit Project of the Year – UCL, 22 Gordon Street

The CIBSE award-winning retrofit of 22 Gordon Street has saved University College London £110,000 in annual bills. Andy Pearson looks at how BuroHappold Engineering used thermal mass in the original structure to minimise energy use and how researchers helped identify comfort issues

CIBSE’s Building Performance Champion – The Engine Shed

The Engine Shed in Scotland was named Building Performance Champion because sustainability was embedded at every stage of the project, from the briefing workshop to building aftercare. Andy Pearson speaks to Max Fordham about the design process behind the exemplar scheme

Making the switch from gas-fired CHP to heat pump

Lower carbon factors for Grid electricity proposed for Part L are already in place in London. Andy Pearson looks at one scheme in North London where the design is switching from gas CHP to heat pump

Class control: optimising HVAC controls in schools

Poor HVAC controls can cost schools thousands of pounds in wasted energy. School teacher Chris Baker explains how he engaged with his students at Parrs Wood school to cut energy bills by £9,000 a year after extensive monitoring

Showcasing net-zero: Event Complex Aberdeen’s energy strategy

The Event Complex Aberdeen has a sophisticated energy strategy combining anaerobic digestion, hydrogen fuel cells and CHP plant. Andy Pearson talks to HDR | Hurley Palmer Flatt about the system design, which also produces hydrogen for a fleet of local buses

Tap Inns and touchdowns: Inside Tottenham Hotspur’s new stadium

The razzamatazz of the American NFL visited north London last month, when Oakland Raiders beat the Chicago Bears 24-21 in a thriller at Tottenham Hotspur’s new stadium. Andy Pearson looks at the remarkable engineering behind the 3,000-tonne retractable grass pitch that enables the stadium to be used for a multitude of events