In their paper, published as a manuscript this week in Renewable Energy, the researchers propose three different methods of providing consistent power among all energy sectors -- transportation; heating and cooling; industry; and agriculture, forestry and fishing -- in 20 world regions encompassing 139 countries after all sectors have been converted to 100 percent clean, renewable energy. Jacobson and colleagues previously developed roadmaps for transitioning 139 countries to 100 percent clean, renewable energy by 2050 with 80 percent of that transition completed by 2030. The present study examines ways to keep the grid stable with these roadmaps.
"Based on these results, I can more confidently state that there is no technical or economic barrier to transitioning the entire world to 100 percent clean, renewable energy with a stable electric grid at low cost," said Jacobson, who is also a senior fellow at the Stanford Precourt Institute for Energy and the Stanford Woods Institute for the Environment. "This solution would go a long way toward eliminating global warming and the 4 million to 7 million air pollution-related deaths that occur worldwide each year, while also providing energy security."
Paper - Study - Jacobson - Colleagues - Ability
The paper builds on a previous 2015 study by Jacobson and colleagues that examined the ability of the grid to stay stable in the 48 contiguous United States. That study only included one scenario for how to achieve the goals. Some criticized that paper for relying too heavily on adding turbines to existing hydroelectric dams -- which the group suggested in order to increase peak electricity production without changing the number or size of the dams. The previous paper was also criticized for relying too much on storing excess energy in water, ice and underground rocks. The solutions in the current paper address these criticisms by suggesting several different solutions for stabilizing energy produced with...
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