1. Solar Thermal Power Generation Technology
i
4 x 300 kW
ASIAN RENEWABLE ENERGY DEVELOPMENT
AND PROMOTION FOUNDATION
August 25, 2004
g 25,
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2. What Kind of Energy for Thailand’s Future?
gy
“SUSTAINABLE ENERGY
SUSTAINABLE ENERGY”
•Non Conventional Fuel Energy
•Environmental Friendly
y
•Renewable Energy
•Thai Innovative Technology
Thai
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4. SOLAR THERMAL TECHNOLOGY
1. Low Temperature T < 100 C
p
Solar Dryer, Solar Hot Water,
Photo Voltaic, Solar Water Distillation
2. Medium Temperature T 100 – 300 C
Parabolic Trough, Solar Chimney
3. High Temperature T > 300 C
Solar Dish, Solar Tower
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5. Renewable Energy Business Vision
Prism Shape Vision in Europe
2,000 GW
0 2010 2020 2030 2040 YEAR
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6. Renewable Energy Business Vision
Prism Shape Vision in Asia
2,000 GW
0 2010 2020 2030 2040 YEAR
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7. Main Renewable Energy Spectrum
WIND
Grid
Generator
BIOMASS EUROPE
Steam Turbine Generator
SOLAR
PV Invertor
SOLAR
THERMAL
Grid
BIOMASS Steam Turbine Generator
ASIA
SOLAR PV Invertor
WIND
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Generator
8. ONE TAMBON ONE MW
SOLAR THERMAL 30%
700 0C 70 BAR Future Solar Thermal
Power Generation Capacity
LIGNITE POWER PLANT 70%
USA 20,000 MW
,
CHINA 20,000 MW
INDIA 20,000 MW
SOLAR THERMAL 70%
180 0C 15 BAR THAILAND Expected
Solar Thermal
Power Generation
BIOMASS 30% Capacity
in 2020: 3 500 MW
3,500
35,000 MBht/ Yr Savings
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17. General Characteristics of Solar Thermal
Electric Power Stations (International Records)
Parabolic Trough Power Tower Solar Dish
Size 30-320 MW 10-200 MW 5-25 kW
Operating Temperature 390 565 750
Annual Capacity Factor 23-50% 20-77% 25%
Peak Efficiency 20%(d) 23%(p) 29.4%(d)
Commercial Status Available Demonstration Demonstration
Technological Status Final Scale-Up Prototype
Technology Development Risk Low Medium High
Storage Available Limited Yes Battery
Hybrid Designs Yes Yes Yes
Production cost / kW (U.S.A) $ 0.02 $ 0.07 $ 0.05
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18. Comparison on Power Generation Type,
Performance, and Costing
Comparison Conventional Soalr Cell Solar Thermal
Investment Cost 60 MB 400 MB 80 MB
Maintenance Cost (Per Year) 5-10 % 10-15 % 2-5 %
Production Cost / kW (U.S.A) $ 0.07 $ 0.11 $ 0.02
Fossil Fuel needed yes no no
Environment effects High Moderate Low
Construction
Constr ction Time (year)
( ear) 2 2 2
Complexity for operation Moderate to high High Low
Complexity for maintenance
p y Moderate to high
g Moderate to low Low
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19. Required area for 1MW power plant compare with
Conventional, Solar Cell, and Solar Trough for 6
hours used at 1,000 W/ m2
m2
1. For Solar Cell: total eff. 5 % will get power 50We with area of
1m2, for 1MWe required 20,000m2 = 12.5rai
2. For Solar Trough: size 8 x 100 m = 800 m2 get thermal
g z g
power eff. 75 %= 600 kWt with electrical eff. 30 % = 180
kWe ,for 1 MWe required 4,400 m2 but for shading with
multiplier 2 5 need 11 000 m2 = 6 9rai
2.5 11,000 6.9rai
3. For Conventional Power Plant: require only 3,200 m2 = 2.0rai
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20. Power Reserves & Access Capacity
p y
in Thailand
1. Installed Capacity 22,000 MWt
22,
2. P k D
Peak Demand 17,000 MWt
d 17,
3. Consumption Increasing Rate (Forecasted by EGAT):
3.1 Prediction during I.M.F period 4 %/ yr
3.2 Actual demand during I.M.F period 8 %/ yr
3.3 Prediction during sound economy 16 %/ yr
g y y
4. Salawin Hydro Power Plant will be completed in next 50
years and expect various investment problems from both
country parties
i
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21. Project Return
Demand Power for One Tambon:
1. One house have the 5 appliances:
W/ hr
Neon 20 W x 3 = 60
Radio 15 W x 1 = 15
Electric Fan 45 W x 1 = 45
Color Television 75 W x 1= 75
Refrigerator 150 W x 1 = 150
Sub Total for 1 hr = 345
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22. Project Return (Cont. 1)
kW/ hr
2.
2 One house for one day use electric for 6 hours = 2.07
2 07
3. One Tambon had population 100 houses in 1 day = 207
in 1 month = 6,210
in 1 year = 74,520
4. In 1 year the power plant generated power = 7,200,000
( Power plant 1 MW/hr in one day 24 hrs produced 24,000 kW/d
assumed for losses and demand in one day produced 20,000 kW/d
in 1 month = 600,000/ d
in 1 year = 7,200,000/ yr)
5. The generated power was sold to People in the area from year 1 to year 6
74,520- 150,000 kW/ yr (increase 20% 20% 15% 10% 10% …)
The
Th over supply power was sold to the grid 7 028 000 7 050 000 kW/ yr
l ld h id 7,028,000- 7,050,000
6. Operation and maintenance cost 2- 5% of construction cost.
7. Cost of Solar Thermal 1MW Power Plant 80 MB. The return of capital will
be ithi
b within 5 year b t not more than 10 year.
but t th
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25. One MooBahn One Small Power Generation Unit
20kW
20kW Solar Thermal Dish in Thailand
Designed, Fabricated, and Installed in Bangkok
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26. Stirling Engine
The Power of New Millenium
Left: Local Manufactured in Thailand Right: OverSeas Model
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27. High Temperature observed at the focusing p
g p g point
Physical Solar Dish Test Site
at PathumThanee Province in 2003
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