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In the political framework of the 2030 agenda and its Sustainable Development Goals (SDG), the world has set ambitious targets to take action on climate change. People talk about renewable energies, electric cars and green technologies as the main characters of this change. However, we do make a big mistake when we forget about a powerful, accessible and in a lot of cases more sustainable factor, which is the energy efficiency.

The efficient consumption not only complements the renewable energies, but also can be a greener and better option in some circumstances. For example, reducing the energy consumption in a building by improving the isolation or the efficiency of the lighting system has an immediate impact, reducing the emissions and saving resources. Whereas an electric car, while reducing direct emissions, still relies on electricity, the generation of which may not be completely clean.

Energy efficiency is crucial for achieving the SDGs related to clean energy and climate action, and it also has a direct impact on economic sustainability. According to some studies, the energy efficiency actions are often more cost-effective than installing renewable technologies. Saving energy, for example, costs less than producing it, even in renewables sources.

In addition, the energetic efficiency has the advantage of not depending on radical changes in technologies and infrastructures, unlike renewable energy technologies. Simple actions, as analysing the energy consumption, installing low consumption devices or raising public awareness can have a transformative impact.

In this context, governments, companies and citizens must rethink our priorities. The energy transition goes beyond simply shifting to new energy sources; it also involves minimizing our overall energy consumption. Energy efficiency is not merely an addition to renewable energy; it is the cornerstone that guarantees renewable energy can sustainably meet the demands of a growing world.

Instead of focusing exclusively on the big headlines about clean energy and electric mobility, let’s remember that change starts with smarter and more responsible consumption. Energy efficiency is the silent engine that can accelerate our transition to a sustainable future.

Energy and power electronics engineer – at RENSET.
Master's Degree in Energy and Power Electronics at University of Mondragon

By Mikel Ezkurdia

Energy and power electronics engineer – at RENSET. Master's Degree in Energy and Power Electronics at University of Mondragon