A frame from a thermal-image video showing a bat and a wind turbine. (Paul Cryan/USGS)

Seeking to limit impacts on wildlife from an increasing number of renewable power developments, the Wyoming Game and Fish Commission revised 10-year-old guidelines Thursday, adopting for the first time recommendations on solar projects.  

The guidelines seek early engagement with developers and may call for at least two years of wildlife monitoring before they break ground. By working with developers even when they’re selecting a location, impacts can be minimized, said Amanda Losch, the agency habitat protection program supervisor.

“We really wanted to clarify a process where we had a lot of communication and touch points … so there’s constantly a back and forth,” she said. “For us, it’s all about having open lines of communication.”

Compliance with the 80-page guidelines for renewable energy, and the department’s recommendations based on them, will be voluntary, the document states. For recommendations to become requirements, they must be “stipulated by a permitting agency or entity,” the document states.

“In our review of energy projects we do not have a regulatory role,” Losch said. “We make recommendations.” The guidelines address siting, monitoring, mitigation and data-collection on new installations, among other things.

It’s easier to protect wildlife by planning ahead than by trying to make up for destroyed habitat, the guidelines state. “Mitigation options will almost always be more costly once facilities are in place,” guidelines state. “[S]ignificant unmitigated impacts may contribute to population declines of wildlife, alter species’ distribution and community composition, and affect the Department’s ability to meet species-specific population objectives.”

Existing development guidelines were a decade old, Losch said, and the agency is fielding more requests for input on solar installations as well as wind projects. “It was time to take another look,” she said.

Early involvement

Renewable proponents should avoid high-value or sensitive wildlife and fisheries resources and “large areas of unfragmented habitat” at the outset, guidelines state. Developers should instead target less valuable already-disturbed or cultivated areas.

Guidelines include expanded “best management practices” to help avoid harm to wildlife. They include more details on what methods should be used in pre- and post-development monitoring, making the information collected more consistent across Wyoming, Losch said.

Areas of high conflict with wind development are shown according to impacts. Red areas are protected areas like parks, and brown areas are very sensitive encompassing sage grouse core areas and critical habitat for threatened and endangered species. Sensitive areas for mule deer migration as well as hawk and bald eagle nesting areas are colored pink. Green areas indicate those with minimal environmental conflicts. (Wyoming Game and Fish Department)

A new section fleshes out what the agency wants in post-construction monitoring plans. The new guidelines also expand on the role of technical advisory panels for each project.

“In this document, there’s more information on who should be on it, what should they be doing,” Losch said.

Some recommendations apply to only one type of renewable installation or the other. Game and Fish passes recommendations to the state’s Industrial Siting Council, Department of Environmental Quality, State Board of Land Commissioners, Wyoming Oil and Gas Conservation Commission and similar permitting agencies. Game and Fish also makes recommendations to federal agencies like the U.S. Forest Service and Bureau of Land Management that decide on development restrictions.

To make up for wildlife or habitat losses, the guidelines call for mitigation, saying “appropriate measures” should be taken to ensure “resource maintenance.”

“The ability to mitigate [impacts] can influence whether a project is supported or not by the Department,” the guidelines state.

Green energy’s impact

Today Game and Fish is engaged with developers of about 20 wind projects, Losch said. Some are in planning stages and others are operating. The department is examining 14 solar projects, only one of which has been constructed.

Development of industrial-scale renewable energy projects could be wildlife managers’ next challenge as consumer demand and federal policies favor them over fossil fuels. Wyoming is the top state for potential wind development, the Wyoming Energy Authority states.

Wind turbines, being upgraded with new blades, seen from the air over Albany County. (Andrew Graham/WyoFile)

Energy companies have developed 1,816 megawatts of wind power production capacity in Wyoming and are building another 4,341, according to the American Wind Energy Association. The wind farms are affecting wildlife.

Recent research suggests pronghorn antelope shy away from turbines on their winter range. “We found evidence that pronghorn avoided wind turbines in winters after development within their winter home ranges,” authors stated in the abstract of a 2020 scientific paper. They acknowledged the topic needs more study.

Before adoption of the new guidelines, Game and Fish already was recommending that the Industrial Siting Council allow no wind development in critical “core” greater sage grouse areas “without clear demonstration … that the activity will not cause a decline in sage grouse populations.”

A five-year study of 346 telemetry-tagged female grouse comparing undeveloped area to a wind farm detected that they were less likely to select brood-rearing and summer habitat in disturbed areas.

There’s also worry about turbine blades killing birds and bats. The first phase of the Chokecherry and Sierra Madre Wind Energy Project south of Rawlins, for example, is expected to kill two bald eagles and 14 golden eagles a year, according to the U.S. Fish and Wildlife Service.

Power Company of Wyoming LLC is developing that 1,000-turbine, 3,000-megawatt field on the 320,000-acre  private Overland Trail Cattle Company Ranch. The USFWS calculation of the turbines’ toll on eagles applied to the development of only the first 500 turbines, expected to be erected starting in 2022.

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The importance of proper siting of solar installations became evident in 2019 near Green River when one interfered with antelope migration, forcing the animals onto a highway. Game and Fish was worried that might happen, and officials wrote Sweetwater County officials about department fears.

Even though developers increased the project setback to 600 feet, wildlife were “forced onto Wyo. Highway 372” after more than 1,000 of them were “bottlenecked” by the fenced solar array, according to the Green River Star.

“It’s constructed in a place that makes sort of a pinch point,” Losch said.

This article was corrected to say Game and Fish may, not will, seek two years of data before construction begins and clarified to say that the Chokecherry-Sierra Madre wind farm is on, not across, the 320,000 acre Overland Trail Cattle Company ranch — Ed.

Angus M. Thuermer Jr.

Angus M. Thuermer Jr. is the natural resources reporter for WyoFile. He is a veteran Wyoming reporter and editor with more than 35 years experience in Wyoming. Contact him at angus@wyofile.com or (307)...

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4 Comments

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  1. Mr. Thuermer, I’m interested in how the pulling of the permit for completion of the Keystone XL pipeline will affect Wyoming oil and gas business and the state of Wyoming? I’m in Oklahoma and it will have a very detrimental affect on our state primarily because of the Cushing storage area.

    Keith Judkins
    Owasso, Oklahoma

  2. Well, I am glad that they are looking into and becoming more knowledgeable about the impacts of renewable energy and the effects it has on Wyoming Wildlife.

    Hopefully, we are paying the same attention to the similar effects that drilling, flaring, open ponds, air pollution, and ash refuse from fossil fuels and how they effect Wyoming Wildlife!

    The more we know, the better we can protect our Wyoming Wildlife!

  3. “Compliance with the 80-page guidelines for renewable energy, and the department’s recommendations based on them, will be voluntary…”

    That’s so sickening, it’s funny, in a bizarre sort of way. Hope the feds come down hard on ALL the energy outfits, but I know that is wishful thinking. It would violate “bipartisanship” and “unity” edicts after all.

  4. Good for Game and Fish. But it’s weird that this article never mentions climate change. So while it discusses the potential impacts of renewable energy development, it completely avoids contextualizing them by noting the motivation behind the shift toward carbon-free energy: avoiding ecological devastation magnitudes worse than any single energy development could inflict. I noticed the last WyoFile article about renewable energy development, regarding a proposed wind farm in Albany County, suffering this same glaring omission. This is akin to writing an article about education budget cuts without mentioning the state’s revenue situation.