Example: Commercial Building

If your commercial premises has a high heat demand exceeding 75kW, the largest capacity capable of a single unit manufactured by Kensa Heat Pumps, an effective solution is to link a series of Kensa ground source heat pumps in a modular cascaded system.

Ideal for buildings with a required flow of up to 50°C, any high heat load can be matched with a cascaded system, as the central ground array is sized to deal with the peak heat demand.

What do cascaded ground source heat pumps cost?

Three Kensa Plantroom ground source heat pumps connected to a cascaded system and a borehole ground array could cost £217,000 and earn you £350,000 of income from the Non Domestic Renewable Heat Incentive (RHI).

Use Kensa’s costed examples below to find the recommended cascaded ground source heat pump design for your commercial building project and establish the heat pump installation costs using our costed examples.

You can also download a costed examples flyer.

Download flyer

Ground source heat pumps with farms and agricultural businesses

Cascaded solutions for businesses

Benefits of a cascaded system

The cascaded system design can flex between periods of minimum and maximum heat demand; for example during the spring and summer when the need for heat is lower, only one heat pump need be in operation, with subsequent heat pumps coming into operation as the heating season progresses.

Another benefit of the system design is that, depending on the heat pump selection, it can be configured to provide 60°C hot water at the same time without the need for an additional immersion heater.

Costed example for water source

If your business premises has access to a stream, river, pond or lake, then you should consider using this as the heat source for your installation.

Water is an excellent conductor of heat and therefore water source ground source heat pump systems are extremely energy efficient.

See example costs
Coils in lake for ground source heat pump system

Costed example for slinkies

Does your company own land? Then slinkies would be a viable option for a ground source installation.

Slinkies are the name given to coiled pipe buried in trenches at a depth of 1-2m where the ground temperature remains constant all year round.

See example costs
Brick Cottage ground source heat pump case study: front on view of slinky trenches

Costed example for boreholes

Boreholes would be the best option if your business is sited on an industrial park or in an urban area.

Boreholes can usually be drilled into any type of ground and are a perfect space-saving solution, as the depth of the hole(s) is varied to suit the heat requirement.

See example costs
Borehole and drill rig for ground source heat pump

Which RHI is right for me?

There are a number of RHI scenarios that are applicable for ground source heat pumps in commercial buildings.

This scenario features a single commercial property on a single ground array.

This set up would be eligible for quarterly index-linked payments from the Non Domestic RHI for 20 years.

Don’t think this scenario applies to you? Click here for other options.

Find out more
Single commercial property_R250

Recommended Products

Plant Room Series

  • Ideal for large scale commercial premises;
  • Available from 25 to 75kW.
Click here

Twin Compact Series

  • Designed for large domestic and small to medium-sized commercial applications;
  • Available from 12 to 30kW single, plus three phase options.
Click here

Recommended Services

Kensa Contracting

Kensa Contracting provides a complete turnkey service from feasibility study, through to design, full project management as well as installation and commissioning. And of course the heat pumps are manufactured by Kensa Heat Pumps, too.

Read more

Kensa’s MCS Umbrella

If you or your own preferred installer will be undertaking the installation, Kensa’s MCS Umbrella Service offers full MCS compliance for those who are not yet MCS accredited, or simply require design support.

Read more

Related Content

Blog: Utilising cascaded ground source systems for commercial heating

Guy Cashmore, Technical Director for UK manufacturer Kensa Heat Pumps, clarifies what is meant by the term ‘cascaded ground source heat pumps’; and what this type of system architecture can bring to commercial projects with high heat loads.  

Blog: Cascaded ground source heat pumps

If a commercial premises has a high demand for heating and hot water, then modular cascaded ground source heat pumps provide an effective solution to meet the heat load of the property.