Brown County Wind Turbine

Adams Electric’s Second Wind Turbine

East of Mt. Sterling and south of Highway 24, Adams Electric Cooperative has erected a 1.5 MW wind turbine.

The site is located south of the Cooperative’s Mt. Sterling substation. The location is being leased from Joseph Ray, a member of Adams Electric Cooperative.

Like the Pigeon Creek wind turbine, the Co-op’s Brown County wind turbine is a direct drive unit, meaning the three blades drive the generator. The blades start producing electricity in winds as light as 6.7 miles per hour and reach full capacity in winds starting at 24.6 miles per hour. The tips of the blades at full capacity turn at 149.1 miles per hour.

This direct drive unit will create an annual generation of 4 million kWhs of energy per year, enough for about 300-400 homes.

The Brown County Wind Turbine was manufactured by Vensys, located in Germany. The blades were made in Grand Forks, North Dakota. The tower was made in Chattanooga, Tennessee. The generator, nacelle and convertor were made in Germany. The parts arrived in Mt. Sterling, Illinois, by semis and were assembled on site using two massive cranes.

Each blade weighs about 6 tons and attaches to a 16 ton hub. The hub is attached to a generator weighing 45 tons. The new landmark stands 279 feet tall to the hub and 403 feet tall to the tip of the blade.

Each blade on the Brown County Wind Turbine is 122 feet long. The entire assembly including the tower, blades, generator and rotor contains 986 (1 ½ inch dia.) bolts.

The Cooperative received a $450,000 grant from the U.S. Department of Agriculture (USDA) to help fund thise project. Financing is secured through Clean Renewable Energy Bonds (CREBs) which are low-interest loans (2.1%) for financing renewable energy projects.

For photos of the construction process of Brown County Wind Turbine, visit Adams Outlet on Facebook!


2014 Production 2015 Production 2016 Production 2017 Production
Jan 501,120 342,720 353,880 346,680
Feb 287,280 247,320 239,040 356,400
Mar 380,160 282,960  322,200 371,520
Apr 379,440 340,560 351,720 300,600
May 266,400  253,080 217,080 197,280
Jun 212,400 162,360 167,040 200,160
Jul 181,440  135,000  142,920 150,840
Aug 115,920  144,000 105,120 111,240
Sep 153,000 176,040 199,640 123,120
Oct 305,280 299,520 269,640
Nov 403,200 410,760  311,400
Dec 228,960 429,120 302,760


Adams Electric Cooperative
Mailing address: P.O. Box 247, Camp Point, IL 62320
Headquarters Location: 700 E. Wood St., Camp Point, IL
Phone: 217-593-7701 – Fax: 217-593-7120