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FINAL CONFERENCE RABAT, 18-19 MAY 2010
Combined Solar Power and Desalination Plants: Techno-economic potential in Mediterranean Partner Countries
Dr. Franz Trieb
The Role of CSP Technology in Water Desalination
FINAL CONFERENCE RABAT, 18-19 MAY 2010 Source: IWMI 2006
Global Water Scarcity
FINAL CONFERENCE RABAT, 18-19 MAY 2010
Global Potential for Concentrating Solar Power
Source: REACCESS 2009
FINAL CONFERENCE RABAT, 18-19 MAY 2010
AQUA-CSP Scenario for Middle East & North Africa
Middle East & North Africa
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
Wa
ter
Con
sum
ption
[B
m³/
y]
Natural Water Used Wastewater reused Fossil Fuel Desalination
Groundwater Over-Use CSP Desalination Efficiency Gains
3 Nile Rivers
2 Nile Rivers
1 Nile River1 Nile River
FINAL CONFERENCE RABAT, 18-19 MAY 2010
(artist view created with
Google Earth)
Energy,
Water,
Food,
Labor and
Income
for further
300 Million
People
in MENA ?
Solar Power & Desalination Plants
HVDC Line
Conventional AC Grid
FINAL CONFERENCE RABAT, 18-19 MAY 2010
Steam Production above and Biomass Production below a
Linear Fresnel Collector Field in a CSP Multipurpose Plant
Photos: Solarmundo Greenhouse Visualization: DLR
FINAL CONFERENCE RABAT, 18-19 MAY 2010
Conventional Desalination Plant
Screening,
Filtration
Tunel
IntakeDesalination
Plant
Direct
Discharge
Power
Plant
Heat / Power
FuelFuel
Anti-Scaling
Anti-Foaming
Anti-Corrosion
Desinfection
FINAL CONFERENCE RABAT, 18-19 MAY 2010
Advanced CSP-Desalination Plant
Nano-
Filtration
Horizontal Drain Intake or
Micro- & Ultrafiltration
Desalination
Plant
Horizontal Drain Discharge
Power
Plant
Heat / Power
Concentrating Solar
Collector & Storage FuelFuel
FINAL CONFERENCE RABAT, 18-19 MAY 2010
CSP Plant provides Combined Heat & Power
for Thermal Desalination
FINAL CONFERENCE RABAT, 18-19 MAY 2010
CSP Plant provides Power
for Reverse Osmosis
FINAL CONFERENCE RABAT, 18-19 MAY 2010
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0.100
1.000
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Installed Capacity [MW]
Co
st o
f E
lec
tric
ity
[€
/kW
h]
CSP Learning Curve
5 % real interest rate, 25 years life, 2400 kWh/m²/y annual irradiance
FINAL CONFERENCE RABAT, 18-19 MAY 2010
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Time (hour of year)
Po
we
r S
up
ply
(M
W)
Concentrating Solar Power Conventional Power
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Time (hour of year)
Po
we
r S
up
ply
(M
W)
Photovoltaic Power Conventional Power
Task: 10 MW Firm Power Capacity
for Desalination
CSP: 10 MW installed, 10 % Fuel
PV+Backup: 20 MW installed, 75 % Fuel
Wind+Backup: 20 MW installed, 60 % Fuel
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Time (hour of year)
Po
we
r S
up
ply
(M
W)
Wind Power Conventional Power
CSP
Wind
PV
FINAL CONFERENCE RABAT, 18-19 MAY 2010
The Role of CSP in Desalination
• Energy Source is large enough to cope with Demand
• CSP mitigates Energy Cost Escalation Risk
• Solar Energy avoids Chemical Additives
• CSP enables Solar Base Load Operation
• CSP can fight Desertification
• Multi-Purpose Plants for New Desert Communities
