Specialists in commercial ground source heat pumps we were asked to provide a turnkey package for the design and installation of a system capable of supplying heating and cooling to this flag ship renewable energy centre in Hayle, Cornwall.
Using their expertise in designing heat pump systems that provide heating and cooling they were able to store rejected energy from the cooling cycle within the borehole array which is then harvested during the heating operation. A total of 8 x 100m bore holes were drilled in the car park and distributed from a sealed manifold chamber.
Not only does this increase the performance and efficiency of the heat pump but also reduces the capital cost due to fewer bore holes being required.
From an extensive commercial range they selected 2No Clivet XENN Ground Source Heat Pumps working in cascade to provide increased part load efficiency. A BacNet building management interface provides remote access to the 80kW heating and cooling system.
The heat pump supplies a 800L buffer tank providing space heating at 45˚C and cooling at 7˚C to the Uponor under floor system.
The building is in the process of claiming the Non Domestic RHI tariff which will provide a revenue for the next 20 years.