Benefits to health, employment, or competitiveness, for example, would generally rate higher in societal and hence politicians' consciousness's than savings in energy consumption or demand, yet they tend not to be as well-known in relation to energy efficiency. Strategies to improve energy efficiency are likely to be considered as technical measures best left to engineers and energy ministries. However, efficiency in energy use and production can be shown to be beneficial not only from an energy systems point of view but for the wider economy and society as a whole. There are costs associated with every measure and a full benefit-cost assessment should be carried out as part of any regulatory impact assessment to check that the benefits outweigh the costs.