TERRA THERMAProject reference: 38548
Funded under: FP6-SUSTDEV
Terrestrial energy recovery using advanced stirling heat-pumps for residential temperature management
Total cost:EUR 2 949 290
EU contribution:EUR 1 248 223
Coordinated in:United Kingdom
Call for proposal:FP6-2005-TREN-4
Funding scheme:STREP - Specific Targeted Research Project
Around 80% of the total domestic energy demand in Europe is used of heating and cooling, amounting to 2,600 TWh p.a, with the majority of heating provided by gas (50%). There are very few efficiency improvements to be made using conventional heaters and boilers, as most are already over 90% efficient. Therefore, alternative heating systems such as ground source heat pumps are seen as the future for heating.
Heat pumps are already used in some European countries but have a number of inherent drawbacks that limit their popularity:
- Existing ground source heat pumps are electrically driven, meaning retrofits to gas-based systems are harder
- Electric heat pumps optimally deliver water at 50°C, which is too low for most European wet central heating systems
- Ground loop heat exchangers are either very expensive (vertical bore) or very disruptive and large (horizontal trench), meaning many homes either cannot or do not wish to install them.
LOGRONO (LA RIOJA)