Case Study

Reducing running costs at Sister’s Barn 

With this case study, isoenergy updated this stunning former agricultural barn near Cirencester, which has been converted into a new family home.

With this case study, isoenergy updated this stunning former agricultural barn near Cirencester, which has been converted into a new family home. isoenergy was tasked to provide the client with the lowest long-term running cost whilst reducing carbon emissions.

isoenergy was tasked to produce a solution for their client that provided the lowest long-term running cost while reducing carbon emissions. 

Summary   

Property type: Country estate 

Technologies installed: Heat pump  

Collector type: Ground loops 

Size (kW): 22 

New/retrofit: New build 

The recommended solution:   

Due to the proximity of an adjoining paddock at Sister’s Barn, the isoenergy team recommended installing a 22kW ground source heat pump using horizontal collectors in trenches. 

Key features:   

  • ground-mounted 20kWp solar PV array consisting of sixty-six 300kW panels. 
  • 1,000m of pipework was buried in five 100m trenches, each 1m deep, 1m wide and 4m apart. 

Outcome:   

Due to the proximity of an adjoining paddock, the team recommended installing a 22kW ground source heat pump using horizontal collectors in trenches. 1,000m of pipework was buried in five 100m trenches, each 1m deep, 1m wide and 4m apart. The plant equipment was in the basement of the property, with careful consideration made to access and ongoing maintenance/servicing.  

Further to the heat pump, isoenergy designed and installed a ground-mounted 20kWp solar PV array consisting of sixty-six 300kW panels. The electricity these panels provide partially powers the heat pump and the wider site, thus reducing running costs and carbon emissions even further.