Pebble Creek (North Meager Creek) Tecto Energy Pebble Creek (North Meager Creek) Geothermal Prospect Outline World Geothermal Power Status BC Geothermal Prospects Pebble Creek (North Meager) Prospects Plan for Development Costs and Conclusion
The Growing Trend in World Geothermal Installed Capacity An increase of about 800 MW in a three year term (2005-2007) has been achieved, following the rough standard linear trend of approximately 200/250 MW per year 2
Distribution of Geothermal power Installed capacity sharing among the continents a total of 12,000 MW in 24 countries 3
A clean and economically viable alternative A 300 MW geothermal power Plant site in the Philippines Geothermal Energy accounts for 1/5th of the total electric power generation in the Philippines
Geothermal Power Development Costs A useful rough estimate for a flashed steam power plant system is about $2,000 to 3,000 per kW for a larger (55+ MW) system, These costs are roughly split between the power plant itself (50 to 60%) and the resource infrastructure (well, piping, water treatment, etc.) (40 to 50%). For Pebble Creek the costs for the first 110 MW initial development is estimated at about $2,500/KW (including power plant and steam-field development)
Geothermal Regions in Canada Young volcanic (high -grade geothermal) Canadian Sedimentary Basin and Shield Deep-circulating waters Medium grade geothermal Hot Dry Rock Medium-grade Total Power Potential: 3 to 5 MW (high-grade) 5 to 15 MW (including medium-grade) Medium Grade
West Coast Volcanic Centers 12 young Complexes in BC and Yukon Tecto Property in Pebble Creek (North Meager)
Potential Viable Geothermal Power Capacity in British Columbia – Geothermal Power (3-5 GW) Pemberton/Garibaldi South Meager Creek Pebble Creek (North Meager) - Mt. Cayley Harrison Hot Springs Rocky Mountain Trench Canoe Reach Stikine Mount Edziza Castle Rock Hoodoo Mountain Anahim Belt Wrangell Mountains Wells Gray-Clearwater Queen Charlottes Vancouver Island Peace Region Pebble Creek Geothermal Prospect is the most viable geothermal prospect in Canada with an estimated 700 MW Developable Capacity
US Energy Administration, Short-term Energy Outlook, May 2012 US supply in Quadrillion BTU Geothermal is a viable renewable, ranking 4th after hydro, biomass and wind, and significantly higher than solar in terms of sustainability.
Pebble Creek Viable Power Corridors Besides geothermal, about 150 MW hydro capacity is planned to be developed in the Pebble Creek area. Tecto generated Power will be connected to the BC Hydro gird at Pemberton (red line).
Brief History of South Meager Creek (8km South of Pebble Creek) On the left: MC1 discharging 200 °C two phase geothermal fluids. The first Canadian geothermal pilot plant was successfully tested for 40 days in 1984 with the discharge from MC1.
(The resource is predominantly situated on the Pebble Creek side) South Meager vs. North Meager (Pebble Creek) Pebble Creek Permits Geothermal Reservoir Model of the Meager Creek Complex, South-North Cross Section The pink area highlights the boundary of the geothermal resource (BC Hydro Model). (The resource is predominantly situated on the Pebble Creek side)
Geological Cross Section of North Meager (Pebble Creek) Remarkable presence of primary permeability in the Pebble Creek Geothermal Prospect associated with high temperatures.
Tecto Geothermal Prospect in Pebble Creek The red lines define the boundary of Tecto’s Pebble Creek property. The Pebble Creek Hot springs are located within the Tecto property.
Tecto Property in Pebble Creek (North Meager) Pebble Creek Hot Springs
Plan of Resistivity and SP surveys Electrical Resistivity Survey in the Pebble Creek area Plan of Resistivity and SP surveys
Overview Map of the Pebble Creek Hotsprings 70°C
Highest Temperature Gradients Discovered in Canada In the North Meager (Pebble Creek) temperature rises by 80 to 90 deg C. Per km (Data from BC Hydro deep core holes). L5 (inside the Tecto Prospect) has a temperature gradient of 83 degC/km.
Looking deep in the ground Cores from Meager Creek area Study of core samples from deep core holes From Meager Complex show the presence of both primary and secondary permeability associated with volcanic vents. Intrusive rocks close to the vents are also highly fractured.
Planned Confirmation drilling Locations of Proposed Drill Holes To depth 2500 m
Flash Steam Geothermal Power Generation Technology (most of the world’s geothermal power capacity) The Pebble Creek Geothermal resource is high-grade, to be exploited by Flash Steam technology.
Cost, Revenue, Payback Flash Base Case – 8000 ft wells, 200°C, 500K lb/hr, Basin and Range drilling, Dual Flash plant The Capital Cost for the first 200 MW geothermal power generation at Pebble Creek is estimated at 500 million Dollars ($4000/kW installed, EIA, 2012). At 9 cents/kWh the invested capital will be paid back in less than 6 years.
Cost of Geothermal Energy Production International Geothermal Association 2012
Risk and cost relations Tecto Pebble Creek Project ESMAP MISSION (World Bank 2012)
Cost of Resource Confirmation at Pebble Creek Drilling and completion of two production-size holes at Pebble Creek to depth 2500 to 3000m, and comprehensive feasibility study for the first 200 MW generation Geotechnical /environmental 1 Mob-Demob. 1 Drilling 8 Well testing /reservoir engineering 1 Feasibility for the first 200 MW 1 ------------------------------------------------------ Confirmation/feasibility 12 M Contingency 3M Total 15M
Conclusion: Geothermal power technology is mature, clean, and offers the best solution for word increasing demand for electricity. B.C. has at least 3000 to 5000 MW geothermal power potential Meager Creek Complex is the most advanced Geothermal prospect in BC with estimated 1000 MW Potential. Tecto’s Pebble Creek (North Meager Reservoir) prospect has an estimated developable power potential of above 500 MW. The chemistry of the Hot springs and temperature data from deep slim holes have proven the presence of a high-grade geothermal resource associated with the Pebble Creek Hot springs. The cost of two Production-size confirmatory holes and feasibility for the first 200 MW Development in the Pebble Creek Tecto Property is estimated at 15 M. The cost of 200 MW power development is estimated at 600 M The payback period will be less than 6 years.