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First Square Mile Development to Use Closed Loop Cooling and Heating

First Square Mile Development to Use Closed Loop Cooling and Heating
27 July 2023
 

The first geothermal borehole has been completed on the Salisbury Square Development, making it the first scheme in the Square Mile to use a standalone closed loop cooling and heating solution which removes the requirement of gas.

This is the first of more than 60 240m geothermal boreholes which are some of the deepest to ever be constructed in the City of London – over three-quarters of the height of The Shard.

The ground source heat pump solution system takes advantage of consistent temperatures deep underground and is the most energy efficient method of heating and cooling,  with power sourced from renewable sources with no burning of fossil fuels.  

Jeremy Eavis, Project Director for Mace Construct, the scheme’s main contractor said: “This network of 60 250m deep geothermal boreholes is the starting point for the ground-breaking installation of a closed loop system ground source heat pump in the City of London. This will mean the Salisbury Square Development will be off the gas grid, dramatically reducing its operational carbon.”

 

New Flagship Home for His Majesty’s Courts and Tribunal Services

 

The Salisbury Square Development is set to house a flagship facility for His Majesty’s Courts and Tribunal Services (HMCTS). With 18 courtrooms, the City of London Law Courts will combine all the Square Mile’s existing courts - except for the Old Bailey - into one building, designed to improve access to justice in line with the HMCTS reform programme.

A new headquarters for the City of London Police is also included in the scheme, as well as Grade A offices. The development is on track for completion in 2026 and is expected to support 21,000 jobs in the Square Mile.

Picture: a photograph of the drill used at the site to create the boreholes. Image Credit: Mace

Article written by Ella Tansley | Published 27 July 2023

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