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Solar Power And Chemical Energy Systems

An Implementing Agreement of the International Energy Agency

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Kuraymat Integrated Solar Combined Cycle

Participants:

  • New and Renewable Energy Authority (NREA)

Contact:

  • Bothayna Rashed, General Manager of Planning & Follow up,

The Kuraymat project site is nearly 90 km south of Cairo and was selected due to its uninhabited, flat desert location, high-intensity direct solar radiation (2400 kWh/m2/year), and its proximity to an extensive unified power grid, expanded natural gas pipelines, and sources of water (the River Nile).

The Integrated Solar Combined Cycle System (ISCCS) is currently projected to have the following specifications:

Table 3.1          Kuraymat ISCCS specifications

Overall Capacity

140 MWe

Net Capacity

115 MWe

Combined Cycle

73 MW GT + 76 MW ST

Solar Field

20 MWe

Expected Total Power

852 GWh/a

Expected Solar Power

33.4 GWh/a

Solar Share

4% of total annual power

Project site

 

 

 

 

 

 

 

 

The solar field is comprised of parallel rows of Solar Collector Arrays (SCAs), sets of typical glass mirrors, which are curved in only one dimension, forming parabolic troughs. The trough focuses solar energy on an absorber pipe located along its focal line.  The solar collectors are connected in series and parallel to produce the required thermal energy by tracking the sun from east to west while rotating on a north-south axis.

A heat transfer fluid (HTF), (typically synthetic oil) is circulated through the receiver heated to a temperature up to 400ºC at 20 bar. The fluid is pumped to a heat exchanger to generate steam that can be superheated in the HRSG and integrated with the steam generated by the Combined Cycle (CC) before entering the Steam Turbine (ST) to generate electricity

Project Implementation:

NREA intends to implement the project under the following contracts:

  • Solar island as EPC/O&M contract for engineering, procurement, construction, testing, commissioning and 2 years’ operation and maintenance,

  • Combined cycle island as EPC contract including interfacing with the Solar Island,

  • 2-year contract for combined cycle island O&M, and

  • Construction management

Project Status

  • Environmental Impact Assessment Study has been done and approved by Egyptian Environment Affairs Agency (EEAA(

  • The conceptual design has been completed

  • Civil works for site access roads are completed

  • Technical study for cooling system water selection, based on which it was decided to use the nearby water from the Nile River

  • Currently in pre-contract signature negotiations with the solar island and combined cycle island offers.

  • Evaluating offers for project construction management.

  •  The project is expected to be operational by the end of 2009

Proposed Project Cycle
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