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Some frequently asked questions  

How deep is a Geothermal borehole?

The depth of the borehole is typically 150-200m deep but this is determined during the preliminary design study and any subsequent test hole drilling.

What is the maximum depth you can go to?

We are currently drilling geothermal boreholes at depths of up to 400m.

What diameter will the hole be?

The hole is drilled typically at approx 5” diameter.

How long does it take to drill a hole?

1-2 days per borehole depending on geological conditions found, the depth, the site conditions and water supply available.

What is the size of the drilling rig?

The drilling rigs range from 9 - 12 tonnes with a footprint of approx. 7.5m x 2.5m

How much space does the drilling operation take up?

The operating footprint of the rig is approx 12m x 2.5m but a separate agreed area will be required for the mud recycling unit, mud pump other additional equipment to suit the specific site.

Will there be any mess during the works/How much mess will it make?

Mess will be kept to a minimum by using a modern mud recycling unit within a controlled sealed system.

Does the drilling operation cause a lot of noise?

Noise occurs during drilling operations but we can use control measures to limit its nuisance on a site by site basis.

How much does a geothermal well cost?

Each borehole is different and therefore there is no set price for a borehole or boreholes. Upon request however, we will be able to provide you with a quote for your requirements which will depend on various factors including number and depth of boreholes, site location, geology and water supply.