What does the term "sustainable energy" refer to?

Sustainable energy refers to energy systems that do not deplete resources for future generations. This concept encompasses energy sources and practices that can be maintained over the long term without causing harm to the environment or the economy. Sustainable energy solutions enhance energy security and stability while minimizing environmental impact.

By focusing on renewable sources such as solar, wind, hydropower, and geothermal, sustainable energy reduces reliance on finite resources and helps combat climate change. This approach encourages practices that conserve ecosystems, promote energy efficiency, and ensure that energy demands can be met without compromising the ability of future generations to meet their own energy needs.

In contrast, energy available in limited quantities is not aligned with sustainability principles, as it implies resource depletion. Similarly, fossil fuels are not typically included in discussions of sustainable energy due to their significant environmental impacts and finite availability. Lastly, energy that is inefficient and costly does not support the goals of sustainability, which aim for efficient and cost-effective solutions.