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
Longi leads global solar rankings, but trade barriers boost rival manufacturers
15th June 2026
China’s Longi Green Energy has taken the top spot in Wood Mackenzie’s Global solar PV module manufacturer ranking 2026. The ranking assesses 48 manufa...
Workforce shortfall threatens UK government’s Warm Homes Plan, trade body warns
15th June 2026
The Warm Homes Plan aims to install 450,000 pumps annually by 2030. As of October 2025, 1,801 companies certified by the Microgeneration Certification...
COP31 presidency unveils 35% global electrification goal for 2035
15th June 2026
Organisers of this year’s Conference of the Parties (COP31) climate summit placed electrification at the centre of a new Action Agenda unveiled at the...
Cement-sector carbon capture moves towards industrial deployment as infrastructure pressures grow
1st June 2026
The facility is expected to process up to 50,000 t/y of industrial residue while producing 125,000 tonnes of aggregate annually for use in infrastruct...
Solid oxide technologies move into real-world industrial energy and off-grid power applications
26th May 2026
Recent announcements from companies including Sunfire, Centrica and Ceres suggest the technology is progressing beyond standalone demonstration projec...
Technical guidance publications
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...
EI 3571
Recommended practices for CH4 emissions detection and quantification - Combustion efficiency and flaring destruction technologies
August 2024
This document has been developed as a follow up of the project to IOGP Report 661 Recommended practices for methane emissions detection and quantifica...
EI 3550
Guidance on adapting combined cycle gas turbine (CCGT) power stations for hydrogen combustion
April 2024
In line with the UK’s commitment to integrate 2–5% hydrogen into the national natural gas transmission system by 2025, this guidance document is desig...
Methane detection and quantification technology filtering tool
January 2023
Explore the methane detection and quantification technology filtering toolWelcome to the methane detection and quantification technology - combustion ...
EI 3509
Best available techniques (BAT): Good practice for the oil and gas industry
October 2022
This guidance has been produced to inform good practice when undertaking best available techniques (BAT) assessments for offshore combustion equipment...