India's coal-fired power plants are among the least efficient in the world and the construction of new thermal power stations would be a cost-effective way of improving efficiency. There have been some positive achievements in energy efficiency in the past few years, such as the enactment of the Energy Conservation Act in 2001 and the creation of the Bureau of Energy Efficiency (BEE) in 2002. In addition to the creation of the BEE in 2002, the National Mission for Enhanced Energy Efficiency (2010-2015) introduced several government instruments to facilitate EE development.