Since 2020 annual energy investment has increased by 45%
Energy efficiency, which measures useful output per unit of energy input, plays a crucial role in energy management by reducing costs and lowering greenhouse gas emissions. Efficiency improvements can be made across the energy system, from generation to home appliances and transport vehicles, and are often the most cost-effective way to enhance energy security and system reliability.
Energy management is essential for businesses, focusing on assessing energy use and implementing efficiency programmes. Innovative technologies in heating, lighting, insulation, small-scale power generation, and smart flexibility present numerous opportunities for better energy use. Energy managers, sustainability consultants, and facilities managers drive these advancements, ensuring compliance with increasing legal energy and carbon reporting requirements. They tackle challenges by leveraging supply, efficiency, generation, demand management, and behaviour change, aiming for a global low carbon, efficient energy system.
0.0
new or updated government policies related to energy efficiency implemented in 2025 (IEA)
0.0
million energy efficiency measures installed through government support schemes in 2.8 million properties from 2013-2024 (DESNEZ)
$0
billion global energy efficiency related investment expected in 2025 (IEA)
Nearly0
million people are employed in jobs relating to energy efficiency (IEA)
New Energy World stories
Beijing announces three-year plan to reduce carbon emissions and expand clean energy
20th July 2026
The directive requires non-fossil energy consumption to increase by about 1% annually through 2028. It also mandates limiting coal use in power genera...
Two Commonwealth regions look forward to increasing renewable power
20th July 2026
First, New Zealand has passed a law that enables the development of offshore renewable energy: offshore wind, wave and tidal power. The Offshore Renew...
Energy efficiency moves forward on both sides of the Channel
14th July 2026
First, E.ON and Imerys have inaugurated a 29MW energy recovery plant at Imerys’ production site in Willebroek, Belgium, marking the start of commercia...
Big tech counts the energy costs of AI
14th July 2026
Google is navigating the tension between hyper-growth and environmental stewardship, according to Google Chief Sustainability Officer Kate Brandt. In ...
RWE commissions agrivoltaic plants as European co-location sector expands
14th July 2026
The elevated panels provide shade, reducing direct summer radiation, thermal stress and water consumption for the vegetation below. They also protect ...
Technical guidance publications
EI 3499
Research report: Application of life cycle assessment methodology to the understanding of the energy balance and efficiency of hydrogen derivative value chain building blocks
July 2026
This research report builds on the Energy Institute’s earlier publication, Research report: Application of life cycle assessment methodology to the un...
EI 3641
Effects of carbon capture and storage plant on thermal power station operation
July 2026
This report explores the operational, economic and environmental implications of integrating carbon capture and storage (CCS) technologies into therma...
EI 3604
Embedding circularity across the life cycle of assets
July 2026
EI 3604 Embedding circularity across the lifecycle of assets helps companies integrate circular economy principles into every stage of an asset’s life...
EI 3639
Research report on replacement of SF6 switchgear with SF6-free switchgear
June 2026
This research report provides an overview of the current landscape of SF6‑free switchgear technologies, including their technical performance, market ...
EI 3328
Guidance on the preservation and recommissioning of existing combined cycle gas turbine (CCGT) plant
May 2026
First-generation combined cycle gas turbine (CCGT) plants, introduced in the early 1990s, have increasingly been displaced by higher-efficiency plants...