A paper published in Nature Energy analyzed the opinions of 163 wind power experts from around the globe, and found that they expect the cost of wind energy to fall even further. Those experts said that by 2030, both onshore and offshore wind turbines will get bigger, leading to additional cost reductions and smoother energy generation.

The median response from experts was that wind power cost could be reduced by 24 to 30 percent by 2030 based on the advances in turbine technology that are either projected or already being seen today.

The authors of the study also acknowledge that estimates about wind power cost reductions have generally been conservative in the past—today in some areas wind energy is already competitive with fossil fuels.