Scientists aim to reduce energy consumption in residential and commercial buildings whose energy expenditure in cooling these spaces off uses 74% of all electricity and 39% of all energy in the united states.Dubbed thermochromic photovoltaic, this technology allows windows to change color to block glare and reduce unwanted solar heating when the glass gets warm on a hot day. to add to this benefit, this color change leads to the formation of a functioning solar cell that generates on-board power. not only would the buildings use less power, but they would also generate it, increasing their contribution to the broader energy grid’s needs. and in terms of aesthetics, the new breakthrough also presents a myriad of colors and a broader range of temperatures, increasing design flexibility for architects and end users.