Sustainable energy System
Sustainable energy system is a energy system that is capable to sustain increasing energy demand and reduces global warming and fossil fuels consumption. Energy derived from natural resources that are not considered harmful to future generations is termed as sustainable energy. In other word, it is a form of energy that meet our today’s demand of energy without putting them in danger of getting expired or depleted and can be used over and over again. All renewable energy sources like solar, wind, geothermal, hydropower and ocean energy are sustainable as they are available widely free of cost in plenty. Sustainable energy does not include any sources that are derived from fossil fuels or waste products. This energy is replenishable and helps us to reduce greenhouse gas emissions and causes no damage to the environment. If we are going to use fossil fuels at a steady rate, they will expire soon and cause adverse affect to our planet.
Sun will continue to provide sunlight till we all are here on earth, heat caused by sun will continue to produce winds, earth will continue to produce heat from inside and will not cool down anytime soon, movement of earth, sun and moon will not stop and this will keep on producing tides and the process of evaporation will cause water to evaporate that will fall down in the form of rain or ice which will go through rivers or streams and merge in the oceans and can be used to produce energy through hydropower. This clearly states that all these renewable energy sources are sustainable and will continue to provide energy to the coming generations.
Current debates and trends in energy highlight some significant energy system challenges. The first of these is the need to reverse the energy consumption and greenhouse gas emissions trend that have seen over the past several years. Meeting GHGs emissions target is a challenge that calls for new ideas, tools, technologies, and policies, along with highly educated people to develop and implement them.
Devising strategies to cost-effectively meet these challenges requires new energy system methodologies that capture the dynamics and drivers of energy demand—including consumer behavior, energy resources (especially renewable resources) and the networks that connect the two. With these challenges in mind, the Sustainable Energy Systems prime objective is to engage industry and government in innovative research and educational programs to develop standard methods and policies for improving the long-term performance of the nation's energy sector while addressing climate change and energy security concerns. Most of the countries have already started taking steps to make use of alternative energy sources. As of 30 November 2016, around 29% of India’s energy needs comes from renewable energy sources. Govt. of India’s ambitious target is 175 GW of renewable power by 2022 which will include 100 GW of Solar power, 60 GW from wind power, 10 GW from biomass power and 5 GW from small hydro power.
Challenges for Sustainable energy System
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Security of power supply
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Affordability
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Climate protection
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Resource efficiency: Efficient resource utilization while maintaining minimum environmental impacts.