Guided Tour of Citigen, Friday 24 January 11-1pm

Join Open City Friends for this guided tour of the Citigen Energy Centre in Central London led by E.ON. 

Hidden behind two Listed Building façades opposite Smithfield Market, and spread across eight floors below and above ground, E.ON’s Citigen energy centre produces electricity, heat and cooling to buildings across the Square Mile.

Citigen is the hub of a low carbon decentralised energy network – covering 11km of pipes snaking through the City – and providing the heating and cooling equivalent to 13,600 average homes to business and residential properties from the Guildhall to the Barbican Centre. 

E.ON is commissioning a 4MW heat pump at Citigen, connected to three boreholes which tap the natural heat of the Earth from 200m under London. This new technology will reduce overall carbon emissions by 30% and support the City of London’s ambitious environmental plans.

When: Friday 24 January, 11-1pm
Where: Smithfield Market, City of London

Please note that attendees need to have appropriate clothing: long sleeves, long trousers, and flat, closed toe shoes (ballerina bops not ok, sneakers are ok). The necessary PPE will be provided.

This tour, part of our 2025 Friends Events Programme, is for Open City Friends only. If you are not a Friend but would like to join this tour, please sign up to support our work today.