This month marks the 20th anniversary of my first Bird Banter column for the Wyoming Tribune Eagle. I wrote about cool birds seen on the ponds at the Rawhide coal-powered plant 20 miles south of Cheyenne, https://cheyennebirdbanter.wordpress.com/2014/02/12/birding-the-colorado-coast/.
This month’s topic is also connected to Rawhide. It’s NextEra’s 120-turbine Roundhouse Wind Energy Center slated partly for the City of Cheyenne’s Belvoir Ranch.
Recent MIT Study Reveals a Weird Yet Childish-Simple 3D Solar Array That Has Amazingly Powerful Results.
Roundhouse will stretch between I-80 south to the Wyoming border and from a couple miles west of I-25 on west 12 miles to Harriman Road. The Belvoir is within. It’s roughly a two-to-three-mile-wide frame on the north and west sides. All the power will go to Rawhide and tie into Front Range utilities.
The 2008 Belvoir masterplan designated an area for wind turbines. In the last 10 years I’ve learned about wind energy drawbacks. I wish the coal industry had spent millions developing clean air technology instead of fighting clean air regulations.
We know modern wind turbines are tough on birds. Duke Energy has a robotic system that shuts down turbines when raptors approach (https://cheyennebirdbanter.wordpress.com/2016/09/13/eagle-safety-collaboration/). Roundhouse needs one—a raptor migration corridor exists along the north-south escarpment along its west edge.
But in Kenn Kaufman’s new book, “A Season on the Wind,” he discovers that a windfarm far from known migration hot spots still killed at least 40 species of birds. Directly south of the Belvoir, 125 bird species have been documented through eBird at Soapstone Prairie Natural Area and 95 at Red Mountain Open Space. Both are in Colorado, butting against the state line.
Only a few miles to the east, Cheyenne hotpots vary from 198 species at Lions Park to 266 at Wyoming Hereford Ranch, with as many as 150 species overall observed on single days in May. With little public access to the Belvoir since the city bought it in 2003 (I’ve been there on two tours and the 2016 Bioblitz), only NextEra has significant bird data, from its consultants.
There are migrating bats to consider, plus mule deer who won’t stomach areas close to turbines—even if it is their favorite mountain mahogany habitat on the ridges. The Wyoming Game and Fish Department can only suggest mitigation and monitoring measures.
There are human safety and liability issues. The Friends of the Belvoir wants a trailhead on the west edge with trails connecting to Red Mountain and Soapstone. Wind turbines don’t bother them. However, during certain atmospheric conditions, large sheets of ice fly off the blades–“ice throw.” Our area, the hail capital, could have those conditions develop nearly any month of the year.
The noise will impact neighbors (and wildlife too) when turbines a mile away interfere with sleep. Disrupted sleep is implicated in many diseases.
Low frequency pulses felt six miles away (the distance between the east end of the windfarm and city limits) or more cause dizziness, tinnitus, heart palpitations and pressure sensations in the head and chest. The Belvoir will have bigger turbines than those on Happy Jack Road, reaching 499 feet high, 99 feet higher.
A minor issue is the viewshed. In Colorado, the public and officials worked to place the transmission line from the Belvoir to Rawhide so that it wouldn’t impact Soapstone or Red Mountain. What will they think watching Roundhouse blades on the horizon?
Because this wind development is not on federal land, it isn’t going through the familiar Environmental Impact Statement process. I’d assume the city has turbine placement control written into the lease.
The first opportunity for the public to comment at the county level is Feb. 19. And in advance, the public can request to “be a party” when the Wyoming Industrial Siting Council meets to consider NextEra’s permit in March.
NextEra held an open house in Cheyenne November 28. They expect to get their permits and then break ground almost immediately. This speedy schedule is so the windfarm is operational by December 2020, before federal tax incentives end.
It doesn’t seem to me that we—Cheyenne residents—have adequate time to consider the drawbacks of new era wind turbines—for people or wildlife. Look at the 2008 Master Plan, http://belvoirranch.org. Is it upheld by spreading wind turbines over the entire 20,000 acres, more than originally planned? People possibly, and wildlife certainly, will be experiencing low frequency noise for 30 years.
At the very least, I’d like to see NextEra move turbines back from the western boundary two miles, for the good of raptors, other birds, mule deer, trail users, and the neighbors living near Harriman Road. The two southernmost sections are already protected with The Nature Conservancy’s conservation easement.
What I’d really like to see instead is more solar development on rooftops and over parking lots in Cheyenne. Or a new style of Wyoming snow fence that turns wind into energy while protecting highways.
This edition of Bird Banter was published Feb. 10, 2019, in the Wyoming Tribune Eagle.