This simulation highlights the stability of wind, solar, and water power.
of US electricity as of 2020, climate experts warn that our transition to a green grid future needs to speed up.
A host of different sources powered these projections: Jacobson used data from a weather-climate-air pollution model he first built in 1990, which has been used in numerous simulations since. Individual state and sector energy consumption was taken from the Energy Information Administration. Current fossil fuel energy sources were converted to electric devices that are powered by wind, water, and solar. This was then used to create projections for energy use in 2050.
In building their forecasts, the authors looked at existing grid regions within the North American Reliability Corporation to understand how current demand and supply is being met in each area. To test the differences between isolated and interconnected grids, they also looked at six states that had large populations and high energy consumption: New York, Florida, Texas, California, Alaska, and Hawaii. The modelers also analyzed all contiguous states and the District of Columbia.
“The question is much more an economic question, not so much a technical question,” says Cole. According to his research, the pathway to a renewable grid is not as expensive as first estimated due to cost reductions in solar and wind energy. The problem, he says, lies with building capacity.
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