Download Noor Ouarzazate I fact sheet Parabolic trough plant Noor Ouarzazate I, Morocco. SENER, ACCIONA and TSK [+]
Parabolic trough plant Noor Ouarzazate II
- Client: ACWA POWER
- Country: Morocco
- Contract type: EPC
- Start date: 2015
- Ending date: 2018
Parabolic trough plant Noor Ouarzazate II, Moroco.
The Noor Ouarzazate II thermosolar plant of 200 MWe and six hours of thermal storage capacity with molten salt technology, has the second generation of parabolic troughs developed and patented by SENER, SENERTrough®-2 parabolic trough collectors. The plant is in its start-up phase and will avoid the emission of more than 170,000 tons of CO2 per year..
In addition to Noor Ouarzazate II, SENER is a participant in the other two thermosolar phases of the project, Noor Ouarzazate I and Noor Ouarazate III, in the same turnkey construction consortium. The three thermosolar plants are to provide a total of 510 MWe of power. All of them equipped with thermal storage systems, enabling them to continue to produce electricity in the absence of solar radiation. As a matter of fact, the time with the greatest demand for power in Morocco is nightfall, so the integration of these facilities in the Moroccan electricity system will be one of optimal efficiency. Altogether, they will avert annual emissions of 470,000 metric tons of CO2 into the atmosphere.
- 200 MWe of power and 6 hours of thermal storage capacity
- Enough solar power to meet the demands of 165,000 homes per year
- Noor Ouarzazate II will avert annual emission of 170,000 metric tons of CO2 into the atmosphere
- Project description:
- Technology: Parabolic trough collector, SENERTrough®-2.
- Total reflective area: 1,800,000 m2.
- Surface area of the solar field: 700 Ha.
- Turbine power capacity: 200 MWe.
- Number of loops: 425.
- Thermal storage capacity (equivalent hours of turbine operation): 6h.
- Main cooling method: Air cooled condensers.
- HOW IT WORKS
- SENERtrough®-2 collectors
Solar radiation beams on the SENERtrough®-2 collectors which concentrate said radiation in the central tube through which fluid heated to very high temperatures circulates. This fluid, generically called HTF (Heat Transfer Fluid), is in this case similar to oil in composition.
- Steam generator system
The HTF is pumped through the piping system to the steam generator, where it transfers its heat to vaporize water.
- Steam turbine
The steam produced under high pressure is used to move the turbine. The turbine is connected to an alternator that generates electric power.
- Air cooled condenser
The steam that leaves the turbine is condensed becoming water that is again incorporated into the cycle. Using an air cooled condenser, reduces the water consumption of the plant in more than 80%.
- Heat exchanger
When there is excess thermal energy in the solar field, it is stored. This is done by diverting some of the heated HTF to the exchanger, where it comes into contact with the salts, transferring its heat to them.
- Thermal storage system
To fill up the storage system, cold salt is pumped from the cold-salt tank to the heat exchanger, where the HTF heats it. The salts are then stored in the hot-salt tank.
During discharge, the stored hot salt is pumped to the same heat exchanger to heat the HTF and continue generating electricity even during periods when there is no solar radiation.
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