Discovering Renewed Paths Toward a Greener Energy World.
A new study by the International Energy Agency (IEA) reveals that the fight against the climate crisis requires a deep renewal in energy consumption. More than ever, energy efficiency is the solution that can contribute to up to one-third of the necessary emission reductions this decade.
Often, we focus on the shift to renewable energy, but the role of efficiency in energy consumption is gaining momentum. At a recent conference in Versailles, experts and leaders discussed the vital importance of energy efficiency in addressing environmental crises.
The Necessary Transformation
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After 14 years of construction and a diplomatic crisis that nearly led to a military confrontation over control of the Nile, Ethiopia inaugurated the largest hydroelectric power plant in Africa — the dam is 170 meters high, holds 74 billion cubic meters of water, and generates 5,150 megawatts.
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Brazil strengthens partnership with Germany and directs billion-dollar investment to green hydrogen in the Northeast, boosting energy innovation, increasing industrial competitiveness, and consolidating real opportunities for regional sustainable development.
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While Brazil sets records in solar and wind energy, the electrical system shuts down power plants every day because the transmission lines can’t handle it — and the losses have already exceeded R$ 5 billion in three years.
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While the world still relies on polluting and slow energy, the island of Samsø in Denmark has started producing 40% more energy than it consumes, with 11 turbines, projects of up to 40 million euros, and a sustainable revolution built by just 4,000 inhabitants.
During the event, discussions shed light on how a just energy transition, driven by efficiency and technological innovations, can enable faster decarbonization. This transition not only combats the climate crisis but is also economically beneficial and improves energy supply security.
In addition, several actions were highlighted to accelerate this journey:
- Visualize to Optimize: We have mastered the efficiency of cars, but we neglect our homes and buildings. With digitalization, it is possible to monitor and manage energy consumption, eliminating waste. Digital solutions and advanced algorithms are powerful tools for effective management.
- Empowerment: The transition requires knowledge and skills. More than building new buildings, renovating existing ones is crucial, necessitating the mobilization of specialized professionals.
Challenges and Practical Solutions
- Overcoming Financial Barriers: Investment in energy efficiency yields fast and lasting returns. It is essential to recognize and financially incentivize projects that focus on efficiency, aiming for long-term savings.
- Government Leadership: With buildings contributing significantly to global emissions, the role of government is undeniable. By becoming a reference and focusing on decarbonization, governments can guide and positively influence the private sector.
- Leveraging Current Technologies: Often, we wait for future solutions when viable solutions are already within reach. With efficiency in mind, we can use current technologies to tackle immediate challenges, such as excessive energy consumption from air conditioning in buildings.
- Toward “Net Zero”: The vision should be the construction of zero-emission buildings. By using sustainable technology and practices, it is possible to achieve this goal, ensuring a positive contribution to the reduction of global emissions.
Conclusion
The future demands immediate action. With energy efficiency in focus and technology by our side, we can tackle the energy and climate crises, moving toward a greener and more sustainable world.
Source: Leandro Bertoni, Power Systems Specialist for South America.

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