Tesco chooses Interseasonal Heat Transfer™ for store at Greenfield, Oldham

Interseasonal Heat Transfer has been chosen as the sustainable heating and cooling source for the new supermarket at Greenfield, near Oldham, which opens on 6 December 2010.

Interseasonal Heat Transfer

The ICAX design for Interseasonal Heat Transfer at Greenfield provides cooling in summer by extracting heat from the supermarket and, instead of blowing this into the atmosphere like an air conditioning chiller, ICAX stores the heat in ThermalBanks in the ground.

When heating is needed in winter the ICAX system extracts the stored heat from the Thermalbank using a ground source heat pump and distributes it within the building. This recycling of waste heat through the Thermalbank, allows ICAX to deliver a significantly higher coefficient of performance than would be achieved by a traditional “unassisted GSHP”.

ICAX Skid arrives at TESCO Greenfield - 20 October 2010

Recycling thermal energy

The ICAX Skid looks at the most cost effective energy source at any given time, and enables the transfer of heat from where it is available most easily to the areas of the building that need heat. If heat is not available from these sources the system looks to extract heat from the solar charged Thermalbank using a ground source heat pump. The system also has access to an air source heat pump for those spring days when the external air temperature is rising and the heat store in the ground is depleted at the end of the heating season. The ICAX Skid uses an intelligent approach to save energy and re-cycle heat whenever an opportunity arises.

Tesco's commitment to saving energy

The IHT scheme underlines Tesco's commitment to saving energy and lowering its carbon emissions.

These are significant commitments from a large organisation and Tesco is continuously exploring the ways in which it can reduce the carbon footprint of its stores.

As a global business Tesco recognises an important role in helping to minimise climate change. With the overarching goal to be a zero-carbon business by 2050, Tesco follows a three-part climate change strategy and has set the following goals for its built estate:

• becoming a zero-carbon business by 2050
• halve emissions from its 2006 baseline portfolio of buildings by 2020
• new stores built between 2007 and 2020 to emit half the CO₂ of a 2006 new store

Tesco reduces carbon emissions by 61%

The ICAX design of Interseasonal Heat Transfer for Tesco's Greenfield Store is designed to reduce carbon emissions from heating and cooling by 61% compared to a conventional store.

See Ground Source Heating       See Ground Source Cooling       See Ground Source Energy       See Smart Grids