Energy efficiency

Energy efficiency is key to ensuring a safe, reliable, affordable and sustainable energy system for the future. It is the one energy resource that every country possesses in abundance and is the quickest and least costly way of addressing energy security, environmental and economic challenges.

While energy efficiency policies are becoming a key part of the global energy market, there remains vast untapped potential and the IEA is working with countries all over the world to implement efficiency measures.

	Residential buildings	Non-residential buildings	Industry	Transport
World	7.9	3.1	10.8	8.5
China	6.3	1.2	37.6	10.9
United States	14.2	8.7	4.9	25.4
Japan	8.5	5.4	13.7	11.3
European Union	10.4	2.9	2.2	5.7
Korea	5.4	6.1	2.0	4.3
India	1.9	1.1	13.6	0.0
Mexico	7.9	1.1	3.1	3.4
Brazil	2.8	1.9	3.2	0.0
Indonesia	1.5	1.7	0.0	0.0
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Source: Energy Efficiency Market Report 2016

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Energy efficiency is at the heart of the IEA's overall strategic focus. The IEA supports governments and international organisations in understanding and implementing energy efficiency policies by providing the highest-quality data, analysis and policy advice. The IEA also fosters knowledge exchange among all stakeholders through our training programs and research collaborations and works to support energy efficiency agendas at key global fora such as the G7 and G20.

Our work on Energy efficiency