Old Dalby Wind Park

The wind farm site will generate enough energy to power as many as 5,000 homes per year courtesy of nine wind turbines, constructed by leading green energy supplier Ecotricity.

More than 2,000 metres of Polypipe CGU’s Landcoil agricultural drainage system in a variety of diameters between 80mm and 160mm was installed by Lincolnshire Drainage Company Ltd to reduce the risk of water logging in the immediate vicinity of the wind turbines.

The system incorporates ‘header’ drains installed adjacent to the site’s access roads and intercepts outfall from the existing system, diverting water into a new outfall.

To speed up the removal of excess water from the land, the Landcoil system was installed beneath 40mm of clean washed gravel, allowing for quicker infiltration into the drainage system.

The Landcoil pipes were connected with integral couplers to securely join the pipes together within the system. The three-lug design allows for an easy installation, whilst removing the possibility of the coils pulling away from each other during installation. More than 30 Landcoil MultiJunction connectors were also used to connect the different diameters within the system together across the site.

The BSI Kitemarked system Landcoil provides an effective sub-surface drainage to remove excess water from the soil, with the use of a perforated wall to allow water to enter the system before being carried away.

As the site is on agricultural land, this was of key consideration to minimise the risk of ground saturation during heavy periods of rainfall, allowing for better drained soils, which aid in faster cultivations, spraying and harvesting of the land to increase crop yield.