The EU SAVE programme (Specific Actions for Vigorous Energy Efficiency) is the union-wide programme dedicated to promoting energy efficiency in industry, commerce and the domestic sector.
This was a European-wide study examining the energy saving potential - and means of achievement - of domestic water heating. The study aimed to provide the foundation for policy in creating an energy use information system for domestic hot water appliances. Twelve organisations from across the EU worked together on this European Commission study sponsored under the SAVE II programme.
It is known that within the EU there is a considerable saving-potential in the (primary) energy used for the production of domestic sanitary hot water. In the long run, water heating appliances are expected to yield energy savings of over 10% in hot water consumption giving an estimated energy saving of 30 PJ within the first 4 years.
In order to achieve this potential an effective energy use information system for domestic hot water appliances with clear efficiency classes for comparison between different types of hot water appliances is desirable. The objective of such a system should be the decrease of primary energy use and emissions involved with hot water production. The study covers water heating appliances that are independent of space heating, including the following types: gas fired (storage, instantaneous and combis), electric (storage, instantaneous and heat pumps), solar and systems based on district heating.
The project addressed the following:
Using these results, scenarios for reaching appliance improvement and market transformation were extrapolated, and the impact on the manufacturers, consumers and primary energy use and emissions was defined. This resulted in guidelines for the best policy approach to achieve the best environmental result with the highest support.
This project was funded by the EU SAVE II programme (Specific Actions for Vigorous Energy Efficiency), the union-wide programme dedicated to promoting energy efficiency in industry, commerce and the domestic sector, with supplementary financing from NOVEM for the Dutch partner