FUJAIRAH FUJAIRAH 1 INDEPENDENT INDEPENDENT WATER

Transcription

FUJAIRAH FUJAIRAH 1 INDEPENDENT INDEPENDENT WATER
FUJAIRAH 1 INDEPENDENT
WATER & POWER PLANT (F1
(F1 IWPP),
UNITED ARAB EMIRATES
Fujairah 1 Seawater Reverse Osmosis Expansion
Innovative Energy and Water Resources Management
Presentation by
William Chang
Executive Managing Director
Emirates Sembcorp Water and Power Company
For nearly half a century, desalination has
provided a reliable source of fresh water
to the growing population and economies
in the Gulf region. The level of
development achieved thus far by the Gulf
economies would not have been possible
without the parallel implementation and
development of desalination.
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Obviously, desalination is
critical for sustaining life
and economic growth in
the Gulf region.
Some countries in the Gulf
rely on desalination to
produce 90% or more of
their drinking water, and
the
overall
capacity
installed in this region
amounts to about 40% of
the world’s desalinated
water capacity.
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A gradual but constant change in perspective and
environmental awareness...
awareness...
...is driving the technology for
more efficient and
environmentally friendly options
and towards energy
optimisation.
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
High energy footprint is the greatest drawback of desalination
technology. In particular, thermal desalination technologies
have been traditionally less energy efficient than Seawater
Reverse Osmosis (SWRO).

However, there still are cogeneration configurations where
Multiple Effect Distillation (MED) can be more effective, not only
on the variable O&M costs but also to improve energy efficiency
and reduce energy footprint.
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Energy Consumption of StateState-of
of--the
the--art
Desalination Projects
Desalination plants are very energy intensive!
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4.5
1.5
Kwh/m3 of distillate produced
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Thermal energy converted in
equivalent electric energy
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Electric power
4
10
20
5
20
10
1
10
1.5
1
3
0
MSF
cogeneration
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MED TVC
cogeneration
MED
cogeneration
4.5
0
SWRO
3.5
0
SWRO
Water Demand Forecast – Abu Dhabi Emirate
1,500
Global Demand = Emirate of Abu Dhabi System + Northern Emirates Supply
1,400
1,300
1,200
1,107
1,134
1,075
1,100
1,038
978
1,000
999
1,010
77
1,196
91
91
1,033
1,292
91
1,362
91
91
91
91
91
1,267
1,340
91
1,215
91
1,237
1,259
1,190
1,165
1,141
1,095
1,075
1,055
1,115
981
89
835
1,177
88
85
80
917
900
91
1,156
1,217
1,243
1,318
949
914
81
881
800
690
700
34
752
56
46
770
828
699
600 648
500
Auxilliaries
Northern Emirates Supply
400
Western Region
300
Al Ain
Abu Dhabi
200
Global Demand
Note: The Global System peak differes from the sum of the individual area peaks
due to the difference in demand patterns (the peak occures in different months).
100
0
2011
2012
2013
2014
2015
2016
2017
2011 – 2015 : 8% - 9% p.a.
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Emirate of Abu Dhabi System (excluding Auxiliaries)
2018
2019
2020
2021
2022
2023
2015 – 2020 : 3% p.a.
2024
2025
2026
2027
2028
2029
2030
2011 – 2020 : 5% - 6% p.a.
Electricity Network
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Water Network
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Commercial Structure
Union Power Holding
(90
90%
% owned by TAQA & 10
10%
% by ADWEA)
Sembcorp Gulf Holding
(100% owned by Sembcorp Utilities)
60%
60
%
40%
40
%
Project Company Shareholder’s Agreement
Sembcorp Gulf O&M
Company
O&M Agreement
Emirates Sembcorp
Water & Power Company
Power & Water Purchase Agreement
ADWEC
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Sembcorp’s Global Operations across 16 Countries in
in
Six Continents
Well-positioned in Fast-growing Emerging Markets
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Fujairah 1 Independent Water and Power Plant (F1
(F1 IWPP)
- One of the world’s largest operating hybrid desalination plants
- Distinction Award winner for Desalination Deal of the Year at the 2007 Global
Water Intelligence’s Global Water Awards
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Overview of F1
F1 Plant
F1 Plant location
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Project details
F1 is the 6th Independent Water and Power Plant privatised
by the Abu Dhabi Water and Electricity Authority (ADWEA).
Total Investment
USD 1.7 Billion
Financing
With a syndicate of banks
Contracted power capacity
760 MW
Contracted water capacity
100 MIGD (454500m³/day), out of
which 62.5 MIGD from thermal
desalination and 37.5 MIGD from RO
plant
Commercial operations date
16th Mar 2009
Contracted term
20 years (Mar 2029) ”Power & Water
Purchase Agreement” with ADWEC
guaranteed by Abu Dhabi Govt.
SWRO Expansion Project
(under development)
Additional 30 MIGD, targeted to be
completed in 1H2015
Contracted term for SWRO
expansion output
20-year water purchase agreement
with ADWEC, starting from RO
expansion plant commercial
operation date
O&M contract
20 years with Sembcorp Gulf O&M
Co (100% owned by Sembcorp)
Long Term Maintenance
Contract (CSA)
20 years with GE for Gas turbines
Current Contribution to Abu
Dhabi System (based on
capacity)
Power: 5.3% and Water: 11%
F1 Desalination & Power Technologies
Power Plant
Original Gas Turbines
GE 9E
4*109 MW
Steam Turbines
Siemens
2*119 MW
Extension Gas Turbine
GE 9FA
1*220 MW
Contractual Capacity = 760 MW
Net Capacity
: 790 MW
Gross Capacity : 894 MW
Water Plant
RO plant
Degremont
1* 37.5 MIGD
MSF Plant
Doosan
5 * 12.5 MIGD
Contractual Capacity = 100 MIGD
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F1 IWPP - Overall Plant Process
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Hybrid MultiMulti-stage Flash (MSF) / Reverse Osmosis
(RO) Technology
 MSF heat reject can be used for RO plant - reduces Aux power and
seawater intake requirement.
 Cost of potabilisation is minimised as less lime is required for
maintaining Total Dissolved Solids (TDS) in the potable water. The
different rate of blending can be done depending on the water
quality requirement.
 Most suitable for GCC region because of the vast variation in the
summer and winter power demand.
 Overall Aux power consumption kWh/m3 is lower for the hybrid
plants as compared to only MSF plants.
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SWRO Expansion Project
 To increase desalination capacity by 30 MIGD. Targeted completion: 1H2015
 Combined RO desalination capacity will make the F1 IWPP the largest RO
desalination facility in the Middle East
MSF Heat Reject
Existing RO Plant
37.5 MIGD
Dual
Media
Filter
(DMF)
MSF
Existing MSF’s
62.5 MIGD
DMF
Seawater
Dissolved Air Floatation (DAF) system
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RO Expansion
30 MIGD
SWRO Expansion Project
The main innovative aspects of the new F1 IWPP SWRO Expansion
Project are:

Seawater Abstraction

Minimise Environmental Impact

Availability during Red Tide Event
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Seawater Abstraction
 Ability to recover Heat Reject from the MSF plant for reuse as part
of seawater feed for RO plants.
 Heat Reject from MSF is blended with fresh seawater intake. This
integrated stream is then used as feed for both existing and new
RO plants.
Grey Line : Existing Flow
Blue Line: New SWRO Expansion Flow
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Minimise Environmental Impact
The seawater requirements for the plant are deemed to be extremely
low and consequently:

The additional chlorine required for disinfection will be
minimal.
Minimise environmental impact related to the brine discharge as
the Heat Reject from the MSF plant will be reused as part of the
seawater feed for the SWRO plant instead being discharged into the
sea - minimising brine discharge helps to reduce the negative
impact of salinity changes on aquatic flora and marine life.
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Availability during Red Tide
Red tide is the result of an influx of a type of
algae bloom that turns the water to a reddish
colour.
The red tide problem has been growing over the
past few years in the Gulf region, adversely
impacting the important sea water desalination
plants by clogging up dual media filters.
The SWRO Expansion Project includes the installation of a new
Dissolved Air Floatation (DAF) system which will provide enhanced
pre-treatment of seawater feeding into the RO plants.
By improving the quality of the seawater feed, this system enhances
the reliability and availability of the RO plants, particularly during red
tide season.
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