LAWRENCE, Kan. (AP) — Despite recent gains in wind energy production in Kansas, experts worry that troubling signs loom in the future of the industry in the state.

The Lawrence Journal-World reports that pressures to eliminate production tax credits and repeal the Kansas renewable energy standards threaten to slow future growth.

The concerns were highlighted in a report from the American Wind Energy Association released Thursday.

The report found that Kansas has doubled its capacity to generate power from wind turbines in the past two years. It accounts for nearly 20 percent of all electricity generated in Kansas, up from 11 percent in 2012.

But opponents to the tax credits and energy standards argue they subsidize the wind industry unfairly, placing a burden on utilities and ratepayer