Read the latest Report to the Council of Australian Governments’ Select Council on Climate Change.
Chapter 2.4, p.22 demonstrates that GSHP is moving in the right direction ! Seventeen of the submissions to this paper supported the inclusion of GSHP in the RET scheme. Various submissions refer to the technology as ground source heat pumps, direct use geothermal heating and cooling systems.
One of the primary reasons given for inclusion of this technology is that it is a form of heat pump, similar to air-sourced heat pumps that are already eligible under the RET, and utilises geothermal energy which is recognised as a renewable energy source under the RET scheme.
It is argued that it is inequitable to include one type of heat pump while excluding another.
Many of the submissions made the further argument that GSHPs have several advantages compared to air-sourced heat pumps, the main one being that GSHPs are more efficient for heating in winter and cooling in summer. This is because ground temperatures are much more constant than ambient air temperatures. Other advantages of this technology cited in submissions are its ability to reduce peak electricity demand and its ability to produce energy 24 hours a day.
Several examples were provided of demonstration projects in Australia that are completed or planned, with the most common being the Geothermal Australia building and the Brush Ski Lodge resort at Mt Hotham. Submissions also noted that ground source heat pumps have been much more widely deployed in the USA, Canada and the EU compared to Australia.
This article was written by directenergy