Researchers built the device by attaching 17%-efficient monocrystalline PV cells to a mortar roof tile that was doped with a phase-change material (PCM). The PCM solar tile provided 4.1% more power than the PV tile with no cooling agent in the winter, and 2.2% to 4.3% more during the summer.
It was a series of firsts, including a strong full year and Megapack turning a profit, that factored into CEO Elon Musk explaining that he has “never been more optimistic or excited about the future of Tesla.” Austin, Texas, has been confirmed as the site of the next Gigafactory.
Tesla has decimated its solar business from installation peaks of years past and its market share lead has long been surrendered to Sunrun and others. In December, it claimed it would install 1,000 building-integrated solar roofs per week – a figure it has not come close to achieving in six months. Is this any way to run a solar business?
Tesla CEO Elon Musk finds himself in the news quite often, from groundbreaking SpaceX launches to contentious tweets. Yet one story that has flown under the radar by the brash businessman’s standards has been going on for four years now.
U.K. business Roof Tiles Technology Ltd has developed a solar tile with a claimed efficiency of 17.5% and power output of 175 W per square meter. The company’s founder, Antonio Lanzoni, said a PV system featuring the product would cost 25-30% more than a standard solar rooftop.
Tesla finished the first quarter of 2020 with a positive GAAP net income, driven by the profitability of the Model Y. However, the story was not so bright for solar, storage or corporate governance.