Kirkthorpe Hydropower scheme situated on Kirkthorpe Weir on River Calder, near Wakefield, South Yorkshire.
Kirkthorpe Hydropower scheme is Yorkshire’s largest-ever low head hydro-electric scheme and on the largest weir in West Yorkshire. JNP Group provided structural and civil engineering.
The scheme consists of a single Kaplan turbine which is estimated to produce 2.4 million kilowatt-hours per annum, equivalent to the consumption of 800 households.
Sheet piles have been installed to create a cofferdam alongside the weir, and extensive temporary works propping allowed excavation and construction of the reinforced concrete channel within the cofferdam.
A 3.8m fish pass allows safe passage of migratory fish upstream. Fish traveling downstream will be prevented from entering the hydro scheme by the custom built inlet screen.
Project Value: £6m
Client: Yorkshire Hydropower Ltd
Design Services Provided
- Civils including sheet piles, anchor piles, ties and cofferdam
- Reinforced Concrete (RC) retaining walls
- In situ RC works (concrete channel, suspended slabs, walls, and structural capping beams)
- Structural steelwork (intake screen, permanent propping)
- Secondary steelwork (stairs, ladders, walkways)
- Access track
- Substation foundations
- All RC detailing works
- Principal designer