Fujairah 1 Seawater Reverse Osmosis Expansion Innovative Energy and Water Resources Management

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1 FUJAIRAH 1 INDEPENDENT WATER & POWER PLANT (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

2 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. 2

3 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. 3

4 A gradual but constant change in perspective and environmental awareness......is driving the technology for more efficient and environmentally friendly options and towards energy optimisation. 4

5 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. 5

6 Energy Consumption of State-of-the-art Desalination Projects Desalination plants are very energy intensive! Kwh/m 3 of distillate produced Thermal energy converted in equivalent electric energy Electric power MSF cogeneration MED TVC cogeneration MED cogeneration 0 SWRO 0 SWRO 6

7 Water Demand Forecast Abu Dhabi Emirate 1,500 1,400 1,300 1,200 1,100 1, Global Demand = Emirate of Abu Dhabi System + Northern Emirates Supply , , , ,010 1, ,033 1, ,055 1, ,075 1, ,095 1, ,115 1, ,141 1, ,165 1, ,190 1, ,215 1, ,237 1, , 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). Auxilliaries Northern Emirates Supply Western Region Al Ain Abu Dhabi Global Demand Emirate of Abu Dhabi System (excluding Auxiliaries) : 8% - 9% p.a : 3% p.a : 5% - 6% p.a. 7

8 Electricity Network 8

9 Water Network 9

10 Commercial Structure Union Power Holding (90% owned by TAQA & 10% by ADWEA) 60% Sembcorp Gulf Holding (100% owned by Sembcorp Utilities) 40% Project Company Shareholder s Agreement Sembcorp Gulf O&M Company O&M Agreement Emirates Sembcorp Water & Power Company Power & Water Purchase Agreement ADWEC 10

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13 Sembcorp s Global Operations across 16 Countries in Six Continents Well-positioned in Fast-growing Emerging Markets 13

14 Fujairah 1 Independent Water and Power Plant (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 14

15 Overview of F1 Plant F1 Plant location Project details F1 is the 6th Independent Water and Power Plant privatised by the Abu Dhabi Water and Electricity Authority (ADWEA). Total Investment Financing USD 1.7 Billion With a syndicate of banks Contracted power capacity Contracted water capacity 760 MW Commercial operations date 16 th Mar MIGD (454500m³/day), out of which 62.5 MIGD from thermal desalination and 37.5 MIGD from RO plant Contracted term SWRO Expansion Project (under development) Contracted term for SWRO expansion output O&M contract Long Term Maintenance Contract (CSA) Current Contribution to Abu Dhabi System (based on capacity) 20 years (Mar 2029) Power & Water Purchase Agreement with ADWEC guaranteed by Abu Dhabi Govt. Additional 30 MIGD, targeted to be completed in 1H year water purchase agreement with ADWEC, starting from RO expansion plant commercial operation date 20 years with Sembcorp Gulf O&M Co (100% owned by Sembcorp) 20 years with GE for Gas turbines Power: 5.3% and Water: 11% 15

16 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 16

17 F1 IWPP - Overall Plant Process 17

18 Hybrid Multi-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/m 3 plants as compared to only MSF plants. is lower for the hybrid 18

19 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 MSF Existing MSF s 62.5 MIGD Dual Media Filter (DMF) DMF Seawater 19 Dissolved Air Floatation (DAF) system RO Expansion 30 MIGD

20 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 20

21 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 21 21

22 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

23 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