Low Enthalpy Geothermal Research New Zealand World Geothermal - PowerPoint PPT Presentation

Low Enthalpy Geothermal Research New Zealand World Geothermal Congress - Bali Wednesday - April 28 Session – 10G

2 Low Enthalpy Geothermal Research New Zealand Paper 2823 • Brian Carey Geothermal Section Manager GNS Science Wairakei Research Centre Email b.carey@gns.cri.nz • Good Contact - Lisa Lind Email l.lind@gns.cri.nz GNS Science

3 Low Enthalpy Geothermal Research New Zealand Paper 2823 • Paper – a little detail • Visit the Web Site – For updated information http://www.gns.cri.nz/lowtempgeothermal GNS Science

5 What is it all about GNS Science

6 Start of a Stock Take • Resources • Technology • Policy • Social Understanding GNS Science

7 Promote Appropriate Increase in Utilisation • Increase the utilisation • 2025 up 2 PJ per annum from 10 PJ per annum in 2008 • Identify needs • Address needs GNS Science

8 Four Main Tasks Overview - Review Resource Characterisation Technology and Tool Development Integrated Assessment GNS Science

9 Tasks 1 & 2 • Resource Information Review • Technology review • Geophysical method trials • Thermal Rock property data research • Case Studies – Others experiences might assist GNS Science

10 Increase use • Current demand • Possible future demand • Where is the demand • Demand profile - likely determine what areas will uptake first • To increase use have to have available technology accepted GNS Science

11 2007 Energy Demand < 100 O C 3% 10% Residential Commersial Manufacturing Primary Production 28% 28 % 24 PJ 59% 59 % 49.3 PJ 2007 Data GNS Science

12 Energy Demand < 100 O C 140.0 Survey data Projected 2007 Primary Prod 120.0 Manufacturing + 4.1 PJ 100.0 80.0 Commercial + 33.6 PJ PJ 60.0 40.0 Residential + 5.3 PJ 20.0 0.0 1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013 2016 2019 2022 2025 2028 2031 2034 2037 2040 2043 2046 2049 GNS Science

13 Social Survey Work • What drives consumer energy use behaviour • Examine public knowledge and understanding of Low Temperature Geothermal – Ground Sourced Heat Pumps (GSHP) GNS Science

14 Seeking insight • Qualitative - Interviews • Quantitative Survey – Households • Auckland • Christchurch • Dunedin • Rotorua • Tauranga • Lower Hutt • Share provisional results GNS Science

15 Survey Areas GNS Science

16 Regional Areas Ngawha Taupo Volcanic Zone GNS Science

17 Regional Perceptions of Geothermal Resources BOP Waikato Yes Yes No No Northland Canterbury Auckland East Coast Nelson Manawatu Wellington Southland Otago 0 10 20 30 40 50 60 70 80 90 100 Number of respondents (%) GNS Science

18 Low-temperature geothermal • Low level of understanding • Most people were unaware of the term – “Never heard of it”. • Some offered suggestions: – “Not very hot steam”. – “[Using] hot springs to heat your water […] or using the heat pump idea and actually using the heat […]”. – “Using geothermal services which aren’t quite [at] as high temperatures […] Maybe it’s using the residual energy and hot water that’s coming out of a power plant” GNS Science

19 Geothermal Energy Use Perceptions G enerating E nergy Tourism B athing S wim m ing C ooking Yes P ulp No S pace Heating G reenhouses A quaculture Heat pum ps S pace C ooling 0 10 20 30 40 50 60 70 80 90 100 N umber of respondents (%) GNS Science

20 Technology Transfer • Social Process GNS Science

21 Increasing Energy Use from New Zealand's Low Enthalpy Geothermal Resources How ? GNS Science

22 Increase use • Right technology – heating / cooling • Right Place • NZ - Residential and commercial is most of the load • NZ Population distribution gives place where increased uptake likely • Appropriate socialisation of technologies GNS Science

23 Population Centres > 50,000 people GNS Science

24 Forward Focus - Increase use • Heating / cooling technologies – GSHP • Population distribution tells you where • Energy source location • Commercial / larger than single residence focus • Socialise technologies – EECA – Consumer – Builders / Plumbers / Heating Centres – Family and friends GNS Science

25 Low Enthalpy Geothermal - New Zealand • Visit the Web Site http://www.gns.cri.nz/lowtempgeothermal GNS Science

26 Thank You Kia Ora GNS Science