Sustainable energy refers to energy sources that can be used in a way that meets our current needs without compromising the ability of future generations to meet their own needs. A sustainable energy future is one in which energy is produced and consumed in a way that is environmentally friendly, socially equitable, and economically viable over the long term.

There are several types of sustainable energy sources that can be used to achieve a sustainable future. These include:

Renewable energy sources such as solar, wind, hydro, geothermal, and biomass energy. These sources of energy are considered sustainable because they are naturally replenished and do not deplete non-renewable resources.
Energy efficiency measures that reduce energy waste and increase the efficiency of energy use in buildings, transportation, and industry.
Carbon capture and storage technologies that capture and store carbon dioxide emissions from power plants and other industrial processes.
Sustainable transportation systems that reduce the need for fossil fuels and promote the use of alternative fuels such as electricity, biofuels, and hydrogen.

By embracing these sustainable energy sources and technologies, we can create a future where energy is abundant, affordable, and sustainable for all. Such a future will help us mitigate climate change, reduce our dependence on non-renewable energy sources, and create a healthier, more sustainable world for ourselves and future generations.