Why do it:

Ground Source Heat Pumps extract heat from the ground via boreholes or horizontal loops, delivering highly efficient, low‑carbon heating and cooling compared to gas or direct electric systems. They provide stable performance year‑round, reduce fuel costs and cut emissions.

Typical Savings:

• Efficiency (COP 4–5): 70–80% reduction in energy use compared to direct electric heating.

• Gas replacement: 30–50% savings compared to conventional gas boilers (depending on tariffs and system design).

• Carbon reduction: 50–70% lower emissions when powered by grid electricity, even greater with renewables.

• Cooling benefit: Can provide passive cooling at very low cost in summer.

• Total potential: 30–60% reduction in heating energy.

Typical Costs:

• Rule of thumb: £1,200–£2,500 per kWth (UK industrial/commercial benchmark).

• Ongoing costs: £20–£40 per kWth per year (maintenance, & monitoring).