As buildings consume enormous amounts of energy for heating and cooling, contributing significantly to carbon emissions, we are facing growing challenges. While existing smart windows have promised solutions, they still rely on external power sources, wiring, and costly film replacements. This results in high installation costs, indirect emissions, and ongoing electricity bills. Blue Device’s Nanoparticle Solar Smart Windows address these issues. Unlike traditional smart windows such as Polymer Dispersed Liquid Crystal (PDLC), or Electrochromic technologies, they require no wiring, external electricity, or expensive chemical. Powered entirely by solar panels, they operate without indirect emissions and can even be charged using indoor lighting. This innovation can reduce building energy consumption by 20–40%.Because no wiring is needed, they can be easily installed in offices, or even off-grid locations. Exclusive nanoparticle and liquid material properties also cut initial installation costs by over 50%. remains permanent as long the glass itself remains intact.