Aalborg CSP solar steam generators delivers positive outlook in India

Despite of the CSP market challenges in India, the country’s first grid-connected concentrated solar power (CSP) plant has been generating more power than expected. The Godawari 50+ MWe plant’s positive operational experience proves the confidence in Aalborg CSP’s SGS3 steam generation technology that has been reliably delivering on performance promises since the project start.

The Godawari 50+MWe project is the first CSP plant that went into full operation within Phase I of the Indian Government's National Solar Mission. Since the plant has gone online in June 2013, it has been producing 10 megawatts more than its planned capacity of 50MWe.

The plant benefits from the third, optimised edition of Aalborg CSP's solar steam generators, the SGS3 technology. The Godawari plant has recently confirmed excellent performance track records for the system that produces superheated steam at 385°C at 104 barg. One year of performance data showcase flawless and reliable operation while meeting the expected steam production targets. The installed system has not required any maintenance since commissioning which was one of the key requirements for Godawari Green Energy Limited (GGEL).

“When choosing the Aalborg CSP steam generation system, the most important factor for us was the header and coil design providing our plant with a very high reliability, high gradient performance and zero maintenance which is a key issue seen in previous CSP installations.” – said Mr. JP Tiwari, Director of Godawari.

Internationally recognised technology:

The SGS3 systems are developed based on traditional boiler principles (ASME and EN standard) not as heat exchangers (TEMA standard). They are therefore 100% welded header and coil type with up to 4.5mm thick tubes. The SGS3 technology eliminates leakages, avoiding unnecessary maintenance and system downtime. It ensures a fast start-up and increases daily revenue accordingly. Furthermore, it guarantees a low pressure drop of 1-2 bar on the heat transfer fluid (HTF) side and reduces parasitic losses as a result. These main design elements together reduce O&M costs and lower CAPEX of the system.

Concentrated Solar | News published on 09/10/2014 by Rashmi Nargundkar

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