Carter Lake, USA
The Northern Colorado Water Conservancy District (NCWCD) and its Municipal Sub-district provide water to North-eastern Colorado from the Colorado Big Thompson and Windy Gap Projects. Carter Lake is the second largest reservoir in the Colorado Big Thompson Project East Slope distribution system and the principle reservoir for C-BT Project deliveries to the south and east. Several cities including Longmont, Boulder and Broomfi eld receive water from Carter Lake.
When NCWCD decided to install to build a hydroelectric plant at Carter Lake, Gilkes were chosen as the preferred supplier for the mechanical and electrical equipment. Gilkes scope of supply included 2 identical horizontal Francis turbines, synchronous generators, hydraulic control modules, switchgear, control and instrumentation and full installation and commissioning.
The scheme went online in May 2012. The Gilkes turbines operate on 147 feet of head and each generate 1.3MW. The scheme will deliver between 7 and 10MWhrs of electricity a year – suffi cient to power 1,000 homes. NCWCD’s return will be approximately $600,000 a year.
Carl Brouwer, Project Manager commented: "The Carter Hydropower Project has been an absolute success and much of the credit of that success is attributable to Gilkes. Throughout the entire process, from initial contracting to installation and commissioning, Gilkes has been extremely helpful and professional. They literally were involved night and day through the installation and commissioning process to make sure that we had a system that we could count on into the future. In short, it was a pleasure working with them.”
Gilkes is proud to include the Carter Lake project to their North American portfolio which includes in excess of 200 hydro installations.
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- Customer: Northern colorado Water Conservancy District
- Net Head: 45m
- Flow: 3600l/s
- Turbine type: 2 x Francis Units
- Output Power Range: 1367kW
- Speed: 600rpm