Solnova 1, 3 and 4 are three concentrating solar power (CSP) trough plants with a capacity of 50 MW each. They are the first of a total of five plants that will be constructed at the Solucar Platform, according to Abengoa. A Solnova 1 trough is shown.


Solnova 4, a new 50 MW concentrating solar power (CSP) plant in Sevilla, Spain, managed by Abener, selected Therminol VP-1 from St. Louis-based Solutia as its synthetic heat transfer fluid. Solnova 4 is one of several solar plants that will be located at Abener’s Solúcar Platform complex and is scheduled to begin producing electricity in 2010.

Abener had previously announced selecting Therminol VP-1 for a new 470 MW hybrid solar plant in Ain-Ben-Mathar, Morocco, and a 170 MW hybrid solar plant in Hassi R'Mel, Algeria. Both of these plants have 20 MW each of power output capacity from the CSP plants. Abener has chosen Therminol VP-1 for all of these projects due to its ability to meet demanding requirements of high temperature systems and Solutia's more than 20 years of experience in solar projects.

"Therminol continues to be selected for these projects, reinforcing the confidence that Abener has in Solutia as a trusted supplier while demonstrating the commitment that Solutia has to Abener and others in the rapidly growing solar industry," says Solutia's Richard Altice, vice president of commercial services, technical specialties.

Therminol heat transfer fluid is used in the trough-shaped mirror assemblies to absorb concentrated sunlight and heat up to about 752°F (400°C). The heated Therminol is used to generate steam that drives power generating turbines.

Abener, which is affiliated with Abengoa, provides integrated energy solutions.

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