geoexchange heating and cooling: the 5 slide challenge
TRANSCRIPT
Geoexchange Heating and Cooling – The Opportunity in South Australia
Prepared by:Yale Carden, Managing Director
GeoExchange Australia Pty Ltd2 July 2014
Phone: 02 8404 4193
www.geoexchange.com.au
Offices in Sydney and Adelaide
Geoexchange Accredited Installer Network (GAIN): Australia wide
Why Geoexchange?
Climate Suitability: Does it work in South Australia?
New or Retrofit Buildings?
Residential or Commercial Buildings?
Are Rising Energy Costs of Concern?
Are Life Cycle Costs Important?
Multiple Building Types and Uses
Potential for Ongoing Revenue with Utility Application
Qualitative Benefits: eg comfort, aesthetics, noise, plant space
Green Building Technology Showcase
What is Geoexchange?
Green Building Technology Showcase
Air Temperature:Winter: 4 C Summer: 38 C
Ground Temperature: Winter: 18 CSummer: 18 C
Case Study: Mixed Use Block
Commercial, Retail and Residential: Geoexchange as Utility
Site Peak Load: 1720 kW Site Diversified Load: 1040 kW
Common District Vertical Ground Loop for all buildings No gas required
Simple Payback in Year 4 with annual savings: 390 000 kWh
515 tCo2e $93 000 (energy) $235 000 (all costs) ~1500 kL of water
Green Building Technology Showcase
Case Study: Tumut Council, NSW
Direct electricity savings: $116 475 ex GST (66 %);
Electricity demand reduction: 151 kVA (75 %) – Geoexchange up to 40 %
Heating: electric elements evolved to GSHP with certified COP > 5
Cooling: large, noisy, air sourced chiller evolved to GSHP with certified COP ~11
Green Building Technology Showcase
Case Study: Tumut Council, NSW
Direct electricity savings: $116 475 ex GST (66 %);
Electricity demand reduction: 151 kVA (75 %) – Geoexchange up to 40 %
Heating: electric elements evolved to GSHP with certified COP > 5
Cooling: large, noisy, air sourced chiller evolved to GSHP with certified COP ~11
Green Building Technology Showcase