This review provides a comprehensive analysis of various solar thermal technologies, including parabolic troughs, solar towers, and linear Fresnel reflectors, comparing their effectiveness across different industrial applications such as process heating, desalination, and. This review provides a comprehensive analysis of various solar thermal technologies, including parabolic troughs, solar towers, and linear Fresnel reflectors, comparing their effectiveness across different industrial applications such as process heating, desalination, and. Parabolic Trough Solar Collector (PTSC) is one of the more concentrated solar thermal collectors used for solar energy conversion,i. both in industrial heat process and power generation. Can parabolic trough solar power plant be retrofitted with regenerative system? Solar-assisted steam power. The largest operational trough system – California's Solar Energy Generating Stations – has produced over 12 terawatt-hours of electricity since 1984, equivalent to powering 1 million homes for a year. Unlike photovoltaic systems that stop at sunset, trough thermal plants keep generating power. The industrial sector accounts for approximately 65% of global energy consumption, with projections indicating a steady annual increase of 1. 62 billion by 2034, exhibiting a CAGR of 23. The potential of this type of concentrating collectors is very high and can provide output fluid temperatures in the range up to 500°C.