Shams 1

General Info
Owner/s: 
Abengoa Solar
Masdar
Total
Technology: 
Parabolic trough
Country: 
UAE
Status: 
Operational
Purpose: 
Commercial
Usage: 
Electricity
Power: 
100.00 MW
Start date: 
February, 2013
Location: 
Medinat Zayed, Abu Dabi
Generation: 
210.00 GWh
Land area: 
250 hectares
Technology

Solar field

Solar Collector Assemblies - Trough: 
Abengoa Solar Astro
Mirrors / Reflective surface: 
Flabeg RP3
Number of SCAs: 
768
Reflecting area: 
627 840 m²
Heat Collector Element (Tube): 
Schott PTR70
HTF Temp in: 
293ºC
HTF Temp out: 
393ºC

Power block

Storage Y/N: 
No
Power cycle: 
Steam Rankine
Turbine: 
MAN Diesel & Turbo
Cooling: 
Dry
Backup: 
Yes
Backup type: 
Natural gas
Companies involved
EPC: 
Abener
Abengoa
Teyma
O&M: 
Abengoa Solar
Key components suppliers: 
Abengoa Solar
Schott
Flabeg
MAN Diesel & Turbo
Suppliers details: 
Abengoa Solar (Troughs)
Schott Solar (HCE tubes)
Flabeg (Mirrors)
MAN Diesel & Turbo (Turbine)
GEA group (Air cooled condenser)
Fichtner Solar (Consultancy and/or conceptual design)
Schubert & Salzer - BVALVE (Valves)
Leser (Valves)
Saidi (Valves)
Socioeconomics
Cost: 
AED2.2 billion ($600 million)
Generation Offtaker: 
ADWEC
PPA/Tariff: 
25 years
Other financing info: 

Shams Power Company, a special purpose vehicle formed by Masdar, Total and Abengoa holds holds the equity of the project, 20% of total cost.

The remaining 80% was financed through 20 year non recourse loans, financial close was achieved March, 2011.

Shams 1 lenders included BNP Paribas, KfW, Mizuho, National Bank of Abu Dhabi, Natixis, SociétéGénérale, Sumitomo Mitsui Banking Corporation, The Bank of Toyko-Mitsubishi, Union National Bank and WestLB. BNP Paribas acted as financial advisor.

Shams 1 is the first CSP project to be included in the Clean Development Mechanism of the UNFCC.

PPA details have not been released. Additionally to the PPA with the offtaker, Abu Dhabi's Finance Department has signed a Green Payment Agreement with Shams Power to allow a proper ROI for the project.

Other
Construction length: 
3 years
Solar resource: 
1 925 kWh/m2/yr
Other info: 

In order to compensate for the lower turbine efficiency caused by the air cooled condenser at the cold end of the turbine, a gas fired boost burner has been integrated to boost the inlet steam temperature from 380C to 540C. This boost burner will contribute approx. 18% of the total heat input to the plant. Gas burnt in the boost burner is converted into electricity at a very high efficiency.

In order to compensate for fluctuations caused by cloudy weather conditions, a gas fired heater has been introduced which heats the HTF (Heat Transfer Fluid) in parallel to the solar field. This heater will only be used on cloudy days when cloud passages would cause high fluctuations at the steam generator. The heater can also be used to run the power plant even without any sun shine. This was one requirement of ADWEC (Abu Dhabi Water and Electricity Company), the off-taker of the electricity generated by Shams 1. The availability at all times of the year (the so called “firm capacity”) makes the plant more valuable for the off- taker, because he does not need to keep a stand by plant ready at his own cost for the case that he would need the power during a time when the sun is not shining. It is expected that the HTF heater will contribute approx. 4 % of the total annual energy input to the plant.

 

General comments:
Documents and links:
Shams 1 - CSP plant in Abu Dhabi Shams 1 - CSP plant in Abu Dhabi Shams 1 - CSP plant in Abu Dhabi Shams 1 - CSP plant in Abu Dhabi Shams 1 - CSP plant in Abu Dhabi
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