Energy management of a large estate

The paper outlines energy management of the PSA estate, which has been pursued since 1972. PSA's current expenditure on energy in buildings is <235M per annum (1983-84), and while energy management has been in operation the aggregate annual saving achieved across the civil and armed services estate is estimated at 33%. The development of energy management is described; the initial organisation concentrated on the existing estate. An Energy Database was generated for the whole of the civil estate and routine monitoring and targetting of consumption was instituted. Regional Energy Conservation Officers were appointed with responsibilities for energy management of defined areas of the estate and a headquarters group was set up to direct the campaign and determine policy. The funding of all energy efficiency applications depends on a favourable value analysis. The calculations used in establishing investment priorities were based on CIBSE methods. This was quickly followed by the introduction of design techniques to promote energy efficiency in new building work. The use of Design Energy Targets is a prominent feature. Over the period to date an in-house training programme in energy conservation has been established for technical staff involved in building design and operation and for general staff. An expanding range of in-house publications on energy efficiency is also available.