Direct Energy works with local, state and Federal Government to help improve the energy efficiency of government owned and leased buildings. Direct geothermal energy heating and cooling systems have been installed at construction stage of new government buildings and retro-fit during building upgrades and refurbishments.

Utilizing the latest technology, Direct Energy’s geothermal heating & cooling system provides renewable energy with verified coefficients of performance (COP’s) from 3.5 to greater than 5 in space heating and cooling in all climates. Direct Energy systems reduce cooling costs on average of 30% as compared to a 10 SEER air conditioner, and heating costs by 75% as compared to electric heat.

Direct Energy’s geothermal heat pumps for water heating deliver up to 400% electrical efficiency. For every Watt of electricity consumed by Direct Energy’s compressor, the system delivers three to four times that amount of heat energy to the water tank because it is primarily transporting renewable energy. The monthly energy savings in commercial applications are so large that the system quickly pays for itself.

Government Project Highlights

 Coming Soon

Solar Geothermal, renewable energy source

Geothermal energy is renewable and available 24 hours a day, 365 days a year. It comes from two replenishing sources: the Earth’s core in the case of hot-rock, several-kilometre-deep – utilised in power generation, and stored solar energy, used in conjunction with Geothermal Heat Pumps (GHPs, also referred to as Ground Source Heat Pumps or GeoExchange) for heating and cooling.

GHPs harvest solar energy from the shallow Earth via horizontal or vertical ground loops circulating a fluid resulting in a more efficient use of energy and natural resources for heating and cooling air and water. Solar geothermal provides an opportunity for people to live & work in comfort, more sustainably.

Proven technology to reduce peak demand

Over 3 million GHPs are installed worldwide with concentrations in Europe and the US who embraced this technology in the 1970’s. Australia is behind on the uptake of this technology but has every reason to catch up. National penetration of air-conditioners has increased from 35% to 65% over the last decade.

Increasing use of air conditioners is expected to push peak demand for electricity up by more than 3 per cent in most states, forcing distribution and transmissions business to spend billions of dollars expanding the capacity of their networks. The rate of peak demand is growing 50 per cent quicker than the increase in overall energy consumption and customer numbers. Demand-side reduction strategies such as the scale application of GHPs may offset some of the transmission network upgrades.

Australian Standards Development

The direct geothermal industry, led by peak bodies such as the Australian Geothermal Energy Association (AGEA), has achieved a few key milestones in the last 12 months, the highlights being:

  • Commencement of Australian Standards development for design, installation & commissioning of GHPs which can inform substantial policy development;
  • Victorian state government has awarded (in April 2012) $1.6 million funding via the Energy Technology Innovation Strategy (ETIS): Sustainable Energy Pilot Demonstration (SEPD): Direct Geothermal Energy Pilot Demonstration for monitoring & performance testing of direct use geothermal projects throughout Victoria.

Over the next 4 years, Direct Energy as strategic partner within the edDGE direct geothermal pilot study, will provide local data on the geotechnical and performance aspects of installations to accelerate the application of direct geothermal systems within Australia.


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