This review critically identifies recent advancements in PTC–HP hybrid systems, highlighting design improvements, working fluid selection and process parameters. . A 30 MW parabolic trough power plant located at Kramer Junction, California. Each year, the United States is becoming more dependent on foreign sources of energy. Parabolic troughs, which are a type of linear concentrator, are the most mature CSP technology with over 500. . 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 SkyTrough DSP will advance the state-of-the-art in parabolic troughs for utility applications, with a larger aperture, higher operating temperature, and lower cost. This article explores their working principles, industry applications, and global market trends while addressing common questions about this. . Parabolic Trough Collectors (PTCs) are a well-established technology for solar energy conversion; however, the thermal losses associated with systems limit their efficiency. Integrating Heat Pipe technology with PTCs can increase the overall efficiency by improving heat transfer and minimizing the. .