Invisible solar cell technology promises to turn any window into a power generator. It sounds revolutionary, but it hides an uncomfortable reality: the initial cost will be prohibitive for humble homes. While large property owners reduce their bills, the majority will continue to pay high prices for electricity that doesn't go down.
How the transparent photovoltaic cell works 🔬
These cells use materials like perovskite or amorphous silicon to absorb ultraviolet and infrared light, letting visible light pass through. Their efficiency is around 10-15%, lower than opaque panels. They are integrated into laminated glass or coatings. Although production costs are slowly decreasing, specialized installation and the replacement of existing windows make the system expensive, resulting in a very slow return on investment for households with limited budgets.
My window asks me for a loan to save electricity 😅
Great: now, in addition to paying the apartment mortgage, I have to take out another one so the windows can generate light. Because, of course, the perfect ecological solution involves the poor investing thousands of euros so the rich can save on their bill. Meanwhile, the state subsidizes the solar balcony of the neighbor with a pool. What could go wrong? Oh, yes: paying more to save, the classic.