The primary objective of concrete curing is to enhance the strength and durability of concrete componentsusedinconstruction.Thisstudyinvestigated the efficiency of a solar-generated electric curing system compared with conventional water ponding for conventional and metakaolin-based concrete. Concrete beams(100×100×400mm,40MPa)werecast,withhalf cured by ponding for 28 days and the rest subjected to solar-electric curing for three days. Flexural strength tests and statistical analyses (ANOVA) revealed significant differences among curing methods and mix types (F(3,8) = 32.56, p = 7.83 × 10⁻⁵). Water-cured specimens generally exhibited higher flexural strengths, but electrically cured metakaolin concrete achieved 88.8% of the 28-day water-cured strength within just three days, with mean values of 3.90 ± 0.18 MPa compared to 4.38 ± 0.07 MPa for water curing.The inclusion of 20% metakaolin enhanced hydration kinetics, microstructural densification, and water resistance, leading to improved mechanical and durability performance. These findings demonstrate the efficiencyofsolar-electriccuringinacceleratingstrength development while conserving time, water, and energy. Overall,theresultsconfirmthatsolar-electriccuringisa sustainable, energy-efficient, and technically viable alternative to conventional ponding, particularly in regions with limited water availability and abundant solar resources.