This report presents the results of a study of using new
information and communication technology in small-scale energy
management systems on the level of individual households.
Detailed requirements are formulated for such an energy
management system. A hardware and software architecture is
proposed based on existing standards for delivering service
applications. A large part of the energy management
functionality for such a E-box for energy efficiency and cost
control has been implemented in a software prototype.
The results of prototype simulation studies indicate that there
is a cost saving potential and a potential for improved
embedding of small scale, sustainable energy generators, if
operations of appliances are co-ordinated in view of real-time
market price signals. The potential (spread in cost plus or
minus 15%) is highest for combined operation of small ì-CHP
(Stirling motor powered or fuel cell installations) satisfying
a house's heat demand with laundry washing and drying processes
in a real time electricity pricing situation. A similar
increase in cost effectiveness can be achieved, if buffering of
energy-carriers (electricity or heat) is used.
Possible market and business models for implementing the
functionality of an E-box are dealt with and some possible
implementation opportunities in a real-time price liberalised
end user energy consumption market are discussed.