Installed wind turbine at CCSWA |
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Wind Energy Development
Client: Chester County Solid
Waste Authority |
The Chester County Solid Waste Authority (CCSWA) received a Pennsylvania Economic Development Authority (PEDA) grant to install a windmill on their landfill to generate electricity. CCSWA hired ARM Group Inc. to coordinate the permitting and to prepare a foundation system for the placement of a 1.8 kW small wind turbine on top of a geosynthetic-capped municipal solid waste landfill. On behalf of CCSWA, ARM attained building and zoning permits for the proposed project.
Based on the unique subsurface conditions at the proposed windmill site, ARM developed a foundation scheme to essentially “float” the loads imposed by the tower on the constantly settling surface of the landfill. ARM worked with a structural engineer to design a custom-fabricated steel foundation that would provide stability and the ability to relocate the windmill in the future. Additionally, ARM’s engineers developed customized geotechnical foundation specifications for the structural fill pad underlying the steel foundation. ARM directed the construction of the foundation pad and tested the compacted soil with a nuclear density gauge to ensure that adequate compaction was achieved.
The selected windmill, a Skystream 1.8 kW model fabricated by Southwest Windpower, was erected at the site in May, 2007. The windmill is approximately 41 feet tall when a single blade is in the vertical position. The entire assembly weighs approximately 200 lbs. ARM also provided construction quality assurance services on behalf of the owner, which included soil and steel connection (subcontracted) inspections to ensure that the windmill was installed and connected in accordance with the project specifications.
If you would like additional information about this project or any of ARM's projects or services please send an e-mail to info@armgroup.net.
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