Wind energy on a lifecycle basis takes about 5 to 6 months to return the total energy expended
An evidence review published in the journal Renewable Energy in 2010, which included data from 119 turbines across 50 sites going back 30 years, concluded that the average windfarm produces 20-25 times more energy during its operational life than was used to construct and install its turbines. It also found that the average "energy payback" of a turbine was 3-6 month
https://www.theguardian.com/environment/2012/feb/29/turbines-energy
Uruguay shows renewable energy can be achieved by direct government action
In the last 10 years, Uruguay has shifted dramatically to electricity generated from renewable sources and shifted away from petroleum-based generation. Currently 98 to 100 percent of electricity comes from renewable sources compared to just 40 percent as recently as 2012.
https://www.export.gov/article?id=Uruguay-Renewable-Energy-Equipment
Costa Rica Has Run on 100% Renewable Energy for 299 Days. This is again is direct government action
https://www.under30experiences.com/blog/costa-rica-has-run-on-100-renewable-energy-for-299-days
An evidence review published in the journal Renewable Energy in 2010, which included data from 119 turbines across 50 sites going back 30 years, concluded that the average windfarm produces 20-25 times more energy during its operational life than was used to construct and install its turbines. It also found that the average "energy payback" of a turbine was 3-6 month
https://www.theguardian.com/environment/2012/feb/29/turbines-energy
Uruguay shows renewable energy can be achieved by direct government action
In the last 10 years, Uruguay has shifted dramatically to electricity generated from renewable sources and shifted away from petroleum-based generation. Currently 98 to 100 percent of electricity comes from renewable sources compared to just 40 percent as recently as 2012.
https://www.export.gov/article?id=Uruguay-Renewable-Energy-Equipment
Costa Rica Has Run on 100% Renewable Energy for 299 Days. This is again is direct government action
https://www.under30experiences.com/blog/costa-rica-has-run-on-100-renewable-energy-for-299-days
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