An October 9 TecScience report describes GEMMA, a smart-window prototype under development at Tecnológico de Monterrey in Mexico. The proposed assembly integrates semitransparent solar cells, polymer-dispersed liquid-crystal film, lighting and thermal-insulation layers.
The university publication places the project at technology readiness level TRL 2 and says researchers aim to reach TRL 4. Building or office testing remains a future plan; the report does not announce a commercial product.
TecScience attributes a 20% heat-transfer reduction to tests by the research team. Separately, a simulation estimates 3.9% less annual cooling energy. These measure different things and are not independently verified building-energy savings.
The article supplies no detailed test protocol or linked peer-reviewed study, so its numbers should be read as preliminary research claims.
Sources & reporting notes
- GEMMA: a smart window that generates electricity and regulates building temperature TecScience / Tecnológico de Monterrey · Source dated October 9, 2026October 9 is the university report date; test and prototype milestone dates are unspecified.
- GEMMA: una ventana inteligente que genera electricidad y regula la temperatura de un edificio TecScience / Tecnológico de Monterrey · Source dated October 9, 2026Spanish and English pages are versions of the same institutional report, not independent validation.
This article is an original, AI-assisted summary of the sources above. It does not claim firsthand reporting or independent product testing. Our editorial standards · Corrections policy