 This paper investigates the enhancement of evacuated tube solar collector, ETSC, performance through two methods, adding a self-tracking finned electronic curtain in front of the collector and replacing pure water with a nano-fluid. The results show that using TO2, 50 nm, plus PW, as a working fluid without the curtain improved efficiency by 3.906%, 5.34%, and 7.407%, while distilled water only increased efficiency by 2.34% and 3.81%. Adding the finned electronic curtain and using TO2, 50 nm, plus PW, as a working fluid further improved efficiency by 7.03%, 9.16%, and 11.89%. Overall, the study demonstrates that the use of a nano-fluid and finned electronic curtain can significantly improve ETSC performance. This article was authored by Hussam Rashid, Khalid Sultan, and Hos Hamanid. We are article.tv, links in the description below.