VSP upgraded solar lighting systems in 12 mountain schools this year, replacing 5-year-old equipment. The 48 new cadmium telluride thin-film panels boost low-light efficiency by 18%. Each classroom now has 4 LED lights and 2 USB ports, with portable batteries for home study. "We check battery levels via phone app, no more fumbling with candles," teacher Carlos Ortiz demonstrated. The 10-year maintenance agreement includes annual pre-rainy season inspections by VSP technicians. Schools save $1,200/year on electricity, redirecting funds to purchase 1,850 textbooks.