Geothermal

Introduction

Hydracrat specialises in drilling and completing boreholes for Ground Source Heat Pumps on a range of domestic, commercial and industrial projects.

We work in partnership with MCS accredited heat pump suppliers, installers and GSHP design specialists to provide clients with turnkey Ground Source solutions.

We are proud to serve clients on both open-loop and closed-loop geothermal installations by:

Closed-Loop

Open-Loop

We also provide drilling services for Thermal Response Tests (TRT).

Our boreholes are drilled and installed to a high specification in accordance with current industry standards.

Ground Source is the most consistent, efficient Heat Pump technology currently on the market.

Benefits of installing a Ground Source solution include:

  • Lower monthly running costs
  • Reduction in carbon emissions
  • Borehole array may last for 100 years or more
  • Ground temperature is consistent at all times of day/year
  • Heat at night for cheaper electricity, due to consistent temperatures
  • Unaffected by weather
  • Minimal maintenance is required
  • Can be reversed in summer for cooling
  • Tidy solution with no parts visible at ground level

The ground – mother earth – acts as a very large store of heat energy. It can be used as a heat source in winter, or a heat sink in summer. The ground can be used to moderate the temperature in buildings standing above it.

A Ground Source Heat Pump is installed to extract heat energy from the ground in winter and to transfer the heat into buildings. Equally it can be used to provide a very efficient mechanism for heat to escape from buildings down into the ground in summer.

In a closed-loop system, heat collecting pipes containing water (with a little antifreeze) are installed within a borehole or boreholes to extract the stored heat energy, which can then be used to provide space heating and domestic hot water.

An open-loop system involves the abstraction of water which is stored underground in an aquifer or in flooded mine workings.

The purpose is to collect heat from the groundwater.

At least one borehole is drilled to abstract this mild/warm water, which is pumped from depth towards the GSHP at the surface. Later the water, now cooler, is discharged back into the original underground source via separate re-injection boreholes.