Planning Tool for Policy-Makers: GIS-based wind resource mapping in Central & West Asia (TA 7274) Peter J. Hayes, Senior Climate Change Specialist, ADB (CWRD) Mark Allington, Managing Director ICF International Wind Energy Status in Asia: 2 nd. ADB Quantum Leap in Wind Conference (Asia Clean Energy Forum 2011), Manila, 20 June 2011
Genesis of wind resource map effort TA7274 Enabling Climate Change Interventions in Central & West Asia Region: Highly vulnerability to CC, high abatement ops Need for Vulnerability & RE (solar & wind) resource maps Formulation of high resolution wind resource maps (10 months) 2
TA 7274 map coverage Afghanistan Afghanistan Armenia Armenia Azerbaijan Azerbaijan Georgia Georgia Kazakhstan Kazakhstan Kyrgyzstan Kyrgyzstan Pakistan Pakistan Tajikistan Tajikistan Turkmenistan Turkmenistan Uzbekistan Uzbekistan
Why Map Wind Opportunities ? Allows investors to assess the energy yield, scale of investment needed and possible returns, at a range of power purchase tariffs, across a geographical area Allows comparison of the relative economic viability of different locations Facilitates dialogue on what needs to change to attract investment 4
Assessment of Renewable Energy Potential within TA 7274 Theoretical resource Ecological resource Economic resource Wind, photovoltaics, concentrating solar Ten CWA countries 5
Example: Kazakhstan wind 6
Wind theoretical resource Wind power density and energy yield (source: NREL) 7 Average annual wind speed GIS data at 100m hub height, grid square size ~10km 2 (2 arc-minutes)
Kazakhstan wind – theoretical resource 8
Wind ecological resource calculation Weighted exclusion factors applied for: Airports/runway alignments, railroads, urban areas National borders (5km buffer) Bird migration pathways Areas >20km away from roads (for construction access) Seismic danger areas Areas with elevation >3500m or slopes >33% All environmentally protected areas 9
Kazakhstan wind – ecological resource 10
Wind economic resource calculation Capital costs (capex)$2,500/kW Grid connection costs:$55,000/km Operational lifetime:25 years Nearest electricity grid:200 ha urban Others Straight line depreciation period:20 years Income tax rate:20% Operating/maintenance costs:2% capex Discount rate:8% or 12% Power purchase tariff USD/MWh:varied Grid square assumed economically viable at a given tariff / discount rate combination if Net Present Value is positive after operational lifetime 11
Kazakhstan – infrastructure and ADB project locations 12
Kazakhstan wind – economically viable resource at 12% discount rate 13
Kazakhstan wind: energy yield versus tariff at different discount rates USD/MWh power purchase tariff (25 year lifetime) 14
Kazakhstan wind: energy yield versus tariff at 12% discount rate 10.4 GW USD/MWh power purchase tariff (25 year lifetime) 15
Kazakhzstan wind – best sites X_COORDY_COORD Distance to nearest 35 kv distribution line in km Grid square area km2 economic resource MW economic resource GWh/yr
Limitations This method can guide where pre-feasibility study work is likely to be worthwhile However it does not replace site-specific, technical and economic investigations and costing Accuracy of wind speed estimates is around +/- 10% 17
GIS Visualization & Decision-Making Tool: Demonstration 18
Planning Tool for Policy-Makers: GIS-based wind resource mapping in Central & West Asia (TA 7274) Peter J. Hayes, Senior Climate Change Specialist, ADB (CWRD) Mark Allington, Managing Director ICF International Wind Energy Status in Asia: 2 nd. ADB Quantum Leap in Wind Conference (Asia Clean Energy Forum 2011), Manila, 20 June 2011