Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe

Leeward partners with Siemens Gamesa to repower Illinois’ Mendota Hills Wind Farm

By Michelle Froese | March 6, 2018

Leeward Renewable Energy, LLC announced that work will soon repower the company’s 15-year-old Mendota Hills Wind Farm in Lee County, Illinois. Leeward selected Siemens Gamesa to supply 29 of its SG 2.6-126 wind turbines, which will replace the existing 63 units of legacy Gamesa turbines.

Siemens Gamesa

After repowering, the wind farm’s total capacity will increase from roughly 50 MW to 76 MW.

“Mendota Hills is Leeward’s oldest operating wind farm in our portfolio,” said Greg Wolf, Leeward Renewable Energy CEO. “This repowering elevates a premier site that will benefit our customers and Lee County. We are pleased to join forces with Siemens Gamesa on the first of what we hope to be many such initiatives.”

Mendota has been in operation since 2003, making it Illinois’ first utility-scale wind farm. The full-scale repowering entails removing all existing wind turbine generators and replacing with new equipment to maximize the efficiency, performance, and extend the lifespan of the wind farm. Upon completion, Mendota will operate with fewer turbines, but overall annual energy production is expected to increase three-fold from current facility output.

“Mendota Hills is Siemens Gamesa’s eighth project with Leeward, with joint projects spanning across four states and totalling over 400 MW, and is the company’s first full-scale repowering in the U.S.,” said José Antonio Miranda, Siemens Gamesa Renewable Energy, CEO Onshore Americas.

The project commences in March of 2018 and is scheduled for completion in December of 2018. Siemens Gamesa will continue to provide operations and maintenance for the Mendota site.

The project is expected to generate 115 full time construction jobs during the repowering process. Additionally, it provides the opportunity for permanent local jobs as well as a subcontractor base to maintain the project. The repowered project is expected to double its contribution to Lee County in the first year in the form of property tax payments and triple its contribution throughout the lifespan of the repowered project.


Filed Under: News, Projects, Repowering
Tagged With: siemens
 

About The Author

Michelle Froese

Related Articles Read More >

Richardson Electronics to deliver pitch energy modules to TransAlta wind fleets
Equinor halts work on Empire Wind offshore project after federal government order
ARESCA wants input on offshore wind standards
US wind market has worst install year since 2013

Podcasts

Wind Spotlight: Looking back at a year of Thrive with ZF Wind Power
See More >

Windpower Engineering & Development Digital Edition

Digital Edition

Browse the most current issue of Windpower Engineering & Development and back issues in an easy to use high quality format. Clip, share and download with the leading wind power engineering magazine today.

Windpower Engineering & Development
  • Wind Articles
  • Solar Power World
  • Subscribe to Windpower Engineering
  • About Us/Contact Us

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising

Search Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe