By Max Clarke

It has been announced that Geothermal International are responsible for supplying Europe's largest heat pump system for heating and cooling purposes at the London shopping centre, One New Change. One New Change is Land Securities latest development which was designed to fit in and compliment the unique historical setting of its location and to provide office and retail space.

This new shopping and leisure centre in the City of London has 60km of pipework underneath it which is enough to wrap around the London Eye 140 times! There are 192 energy piles and two 150m water wells that will supply over 1.6mw of heating and 1.7mw of cooling when the system is working at its peak. This pipework will be transferring heat to and from the ground via the energy piles and two water wells that are 150m below the earth's surface. This technique is known as being an environmentally friendly way of heating and cooling and is also a source of sustainable energy. It is hoped that their expansion into the use of ground source energy will help One New Change reduce their carbon emissions by up to 30% by 2020. It is predicted that the annual heating load is 600,000kwh with a cooling load of 280,000kwh. The built in intelligent control system will make it possible for the system to save up to 500 tonnes of CO2 in a year.

The Marketing Director of Geothermal International; Patrick Sherriff commented: “Geothermal International is delighted that Greg Barker has officially switched on the state of the art ground source heating and cooling system at One New Change. Today is the culmination of a three year project, working closely with Land Securities and building partners to design and install one of the most sophisticated ground source heating systems in the world. The foundations of the building where geothermal pipes have been inserted in the piles as well as water from a natural aquifer provide a heating and cooling source for the building. An intelligent controls’ package enables the system to heat and cool different parts of the building throughout the year.”