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London’s King Cross Estate switches to biogas

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London’s King Cross Estate, a 67-acre development of offices housing companies such as Google, YouTube, and Universal Music, will switch to biogas to reduce its carbon footprint.

The move means 2,000 residential properties and four million square feet of commercial buildings will use biogas supplied by environmental investor, Iona Capital. Iona runs several anaerobic digestion facilities, where food and animal waste is processed to produce clean gas for use in homes, offices, and other premises.

The deal, which has been facilitated and managed by Optimised Energy, will see a plant in Scotland owned by  Iona Capital supply 40,000 MWh of green gas each year to King’s Cross. The plant generates green gas from an anaerobic digestion, where farm animal slurries and residues are broken down to produce clean energy.


King's Cross will use the green gas to supply its on-site energy centre, operated by Metropolitan, specialists in low-carbon heating systems. The energy centre efficiently generates heating and hot water for the whole estate using large boilers and capturing the heat generated by CHP engines which provide renewable electricity for the area.

Forecasts suggest the switch to biogas will enable King’s Cross estate to reduce its predicted annual carbon footprint of 31,000 tonnes by 50%, saving around 16,000 tonnes of CO2 annually from being released into the atmosphere.

"We are delighted that we've agreed this deal with King's Cross to supply sustainable energy to a prime London development. This is part of a number of initatives we are working on across our portfolio to deliver certified green energy direct to end users while giving long-term energy price certainty for the consumer and generator."

Claudine Blamey, head of sustainability for King’s Cross, said: This is an exciting and significant step for King’s Cross and its journey to zero carbon. We are proud that we’re now able to serve our customers with green energy while keeping energy tariffs the same.

“We know that the UK faces a significant challenge in providing heating for homes and businesses while also being able to deliver on its commitments to decarbonise, and we hope this will encourage more investment in the green gas sector.”