Bigger turbines are the better for the environment

UNITED STATES: Scientists have claimed in a new study that the larger the wind turbine, the greener the electricity it produces.

Enercon's E126 7.5MW turbine is the largest in the world
Enercon's E126 7.5MW turbine is the largest in the world

The study, published in the American Chemical Society’s Environmental Science & Technology journal, is the result of research by Swiss and Dutch Scientists, led by Marloes Caduff from ETH Zurich’s Institute of Environmental Engineering.
 
The results of their research showed that the larger the turbine is, the greener the electricity. This effect was due both to size of the turbine as well as the learning and experience gained with the technology over time.
 
"The environmental progress rate was 86%, indicating that for every cumulative production doubling, the global warming potential per kWh was reduced by 14%," says the report.
 
"The parameters, hub height and rotor diameter were identified as Environmental Key Performance Indicators that can be used to estimate the environmental impacts for a generic turbine."

Link to report

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