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<p><strong><span>Sustainable energy is the provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs. Sustainable energy sources include all renewable energy sources, such as hydroelectricity, solar energy, wind energy, wave power, geothermal energy, bioenergy, and tidal power. It usually also includes technologies designed to improve energy efficiency. Besides, Moving towards energy sustainability will require changes not only in the way energy is supplied, but in the way it is used, and reducing the amount of energy required to deliver various goods or services is essential. Opportunities for improvement on the demand side of the energy equation are as rich and diverse as those on the supply side, and often offer significant economic benefits. Renewable energy and energy efficiency are sometimes said to be the “twin pillars” of sustainable energy policy. Both resources must be developed in order to stabilize and reduce carbon dioxide emissions. Efficiency slows down energy demand growth so that rising clean energy supplies can make deep cuts in fossil fuel use.</span></strong></p>
First my question solved!
1. How did the electron come into existence?
2. Where are the stars the source of energy?
I understood your question, undoubtedly it will be solved.
Reducing energy demand with increasing industrial/residential requirements does not seem to be an easy task. It requires efficient devices which provide minimum losses. However Energy demand can be managed by storage of energy. It is a key factor for sustainability and future power demand. All that energy from the natural and conventional sources must be stored for efficient energy management. Research has been conducted on developing Energy storage systems (ESS) with batteries and fuel cells contributing primarily as storage element.
