European Ground Source Heat Pump Association (EGSHPA) | The Authority on Renewable Energy

The geothermal industry is seeing many water well and truck mounted drills being repurposed for geothermal installations. These larger units can be difficult to maneuver through residential sites and can be costly to transport and maintain. RigKits LLC, however has produced a line of dedicated geothermal drilling rigs. Their rigs are compact, and are powerful [...]

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When it comes to drilling through overburden, nothing buzzes through sand, silt and gravel like a sonic. But, on one recent occasion, the drilling speed surprised even the company who manufacture the sonic drill rig. Drilling a test hole for a future geothermal project, a Sonic Drill Corporation rig was able to bore past 300 [...]

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This short article is an invitation to the ground source heat pump community to engage with brownfield practitioners involved in remediation of soil or groundwater to enhance the ef ciency of both energy exchange and remediation. Brownfield sites have been affected by former uses of the site or surrounding land; are derelict or underused; are [...]

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With the help of advances in intelligent controls and a shift in design mindset, these systems can steer buildings toward smaller equipment sizes and associated savings. Review three projects and consider the benefits of keeping an upcoming project in the loop. BY STEPHEN HAMSTRA, P.E., ASHRAE HBDP, LEED® AP, CGD For several decades, our industry [...]

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The issues of sustainability and carbon reduction are key themes of our times.  Our duty to reduce carbon emissions, coupled with a challenging economic climate make it difficult for companies to agree to implement new technologies, which in the short term may cost more. Renewable energy and Government grant schemes are a complex area but [...]

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Uses the moat for heat pump installation More than simply an historic house and garden, Bishop’s Palace is a splendid medieval Palace, which has been the home of the Bishops of Bath and Wells for 800 years. The Palace is surrounded by a stunning moat and it is from here that the renewable energy is [...]

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I hope that by reading this article it will clear up some questions people have on the purchasing of vertical geothermal equipment. We will also look at what other equipment you will need to do vertical geothermal drilling installations. There are three basic types of drill rigs and several brands and variations of drilling rigs [...]

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Dig down six feet into the earth and you’ll find that the temperature at any latitude in the US is stable within a range of 45-75 degrees Fahrenheit. That relatively constant temperature is the basis for geothermal, or ground source, heat pump systems, which can provide homeowners with a simple, reliable, quiet and low-polluting means [...]

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Thermal conductivity testing (also known as thermal response testing) is a critical step in the commercial geothermal loopfield design process. The goals of the test include measuring the undisturbed ground temperature, calculating the formation thermal conductivity and possibly estimating  the thermal diffusivity. While the ground temperature is something that we all understand intuitively, the thermal [...]

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Gaining With Training: How NOT To Do It This article has been submitted by an investor in the geothermal industry, who has a vested interest in the furtherance of best practice and standards for the energy business as a whole. I have been following EGSHPA on Twitter since the organisation first announced its new web [...]

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