The Fresnel Collector is a linear concentrating, solar thermal collector optimized for industrial applications. It can provide heat at up to 400°C and operate with pressures of up to 120 bars. Besides water, thermal oil or high-temperature glycol it can also generate steam directly. Due to its modular design, the system can be scaled up from a 500 kW to 30 MW.
Direct solar radiation is reflected on several rows of single-axis tracking mirrors on to a stationary receiver. This consists of a highly efficient vacuum tube with selective coating. The heat is collected in this absorber tube and fed to the application by means of a heat transfer medium. A part of the sun light reflected by the primary mirrors hit one of the secondary mirrors positioned above the absorber and is reflected from there on to the absorber.