Question

If there is no fossil fuel remain on Earth, How can we make our life sustainable with renewable energy resources?

Write a brief note in 100 words.

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Answer 1

Answer:

Renewables replace fossil fuel energy on the grid.

The type of energy displaced by renewables depends on the hour of the day and the mix of generation on the grid at that time. Countless studies have found that because output from wind and solar replaces fossil generation, renewables also reduce CO2 emissions.

Explanation:

1. Renewables replace fossil fuel energy on the grid.

In the U.S. and in virtually every region, when electricity supplied by wind or solar energy is available, it displaces energy produced by natural gas or coal-fired generators. The type of energy displaced by renewables depends on the hour of the day and the mix of generation on the grid at that time. Countless studies have found that because output from wind and solar replaces fossil generation, renewables also reduce CO2 emissions. For example, an NREL study found that generating 35% of electricity using wind and solar in the western U.S. would reduce CO2 emissions by 25-45%.

Solar and wind farms have dominated new power plant builds in the U.S. in recent years, while fossil fuel plants—particularly coal-fired plants—continue to be retired at record pace. In 2019, wind (9.1GW) and solar (5.3GW) represented 62% of all new generating capacity, compared to 8.3GW of natural gas, while 14GW of coal-fired capacity was retired. The U.S. Energy Information Administration (EIA) has also projected that most new electric generation added in the U.S. in 2020 could come from wind and solar, with new natural gas plants projected to represent less than a quarter of new generating capacity. Certainly, some of these installations may be delayed by the COVID-19 pandemic. While natural gas builds exceeded those of renewables in 2018, reversing the earlier trend of renewables leading, there were 12.9GW of coal-fired capacity and 4.6GW of gas-fired capacity retired in that same year, according to EIA.