The experience of the recent recession provides dramatic evidence of the interdependence of the energy and non-energy systems, with total UK energy consumption falling by over 6% between 2008 and 2009 (Oil and Gas UK, 2016). Over the slightly longer-term, since 2005, energy consumption in the UK has fallen by an average of 1.9% per year (DUKES, 2016).

Changing economic characteristics, as well as the recession, have played an integral part in this reduction, in particular long-term trends in economic structure, including a move towards service activities and a decline in energy-intensive manufacturing industries, have transformed the UK’s demand for energy.

A holistic approach to the energy system necessitates an understanding of the interdependence of the energy and non-energy systems, and in particular, an appreciation of the consequences of non-energy policies for the energy system.