World Energy Saving Day 2026
World Energy Saving Day: Raising awareness and reducing energy waste
Energy efficiency Renewable energy
World Energy Saving Day is celebrated on 21 October and aims to promote the importance of energy efficiency and reducing energy consumption. Raising awareness among businesses, governments and society at large about the need to adopt practices that reduce energy consumption and minimise environmental impact is essential.


World Energy Saving Day aims to promote energy efficiency initiatives that ensure sustainable energy consumption management.
Using energy efficiently plays a fundamental role in building a more sustainable energy system. As renewable energy sources become increasingly prominent, the electrification of sectors such as transport, buildings and industry helps us move towards a more efficient energy model based on low-emission energy sources. In this context, using energy responsibly and efficiently is key to making better use of available resources, reducing emissions and moving towards a more sustainable energy system.
What is World Energy Saving Day?
Since 2012, 21 October has been celebrated worldwide as World Energy Saving Day, an initiative launched by the World Energy Forum. The main aim of this observance is to raise awareness throughout society of the growing importance of energy efficiency and the need to reduce our daily energy consumption. The date was chosen to highlight the direct link between using energy consciously and the benefits this brings to both the environment and the global economy.
The celebration of World Energy Saving Day also seeks to encourage the adoption of technologies and practices that improve energy efficiency, such as technological innovations in renewable energy systems, improved building insulation or the implementation of smart solutions to manage energy consumption. This not only helps to reduce the environmental impact but can also lead to major savings for households and businesses. The importance of cooperation between countries, companies and non-governmental organisations to develop effective global strategies to promote energy efficiency and reduce environmental impact should also be highlighted.
Measures to promote energy savings
World Energy Saving Day should focus above all on the importance of small, everyday actions that can have a considerable impact if taken on a large scale. This is why the International Energy Agency and the European Commission have identified a number of simple measures designed to reduce energy consumption and save money, as well as significantly reducing the use of fossil fuels.
Iberdrola and energy efficiency
At the Iberdrola Group, we are very aware of the importance of efficient energy management throughout the energy chain, so we act to optimise its use while contributing to more efficient use by consumers through information, training, and the supply of solutions and technologies. We therefore look at energy efficiency from three perspectives:
- As an electricity company, we seek to improve efficiency through cutting-edge technologies and equipment in generation, transmission and distribution, as well as in the reduction of auxiliary and cooling water consumption.
- As an electricity supplier, we want to contribute to more efficient energy use by consumers, informing, educating and providing them with solutions that help them to improve their efficiency and reduce the environmental impact of their habits.
- As an energy-consuming company, we drive continuous improvement in energy efficiency in all our activities (offices and buildings, vehicles, water, mobility, employee awareness, etc.).



