UK’s Heart of England NHS Foundation Trust has implemented a £5m ($8.2m) energy efficiency programme at its Birmingham Heartlands Hospital that reduces greenhouse gas emissions.

The hospital’s low carbon energy centre, officially opened in September, has reduced the Trust’s primary energy consumption by 21%, CO2 emissions by 42% and utility spend by 24%.

The programme has reduced CO2 emissions by more than 5,600t this year, equivalent to the environmental benefit of 560,000 trees.

The centre, designed, constructed and financed by clean technology business ENER-G, is also expected to save the hospital £688,000 ($1.1m) each year.