Tesla unveils its solar roof and Powerwall 2

At Universal Studios in Los Angeles Tesla CEO Elon Musk showed off the company’s solar roof-top panels and new Energy initiative. It also showed off its new $5, 500 Powerwall 2 high-capacity residential batteries and Powerpack 2 for businesses. Musk and company have been teasing the photovoltaic cell-embedded rooftop panels for a few weeks . It’s also using the announcement of the new product as an explanation for why its acquiring Solar City. Musk said that if the merger doesn’t go through, the launch of the new tiles will be difficult. During the event, Musk sort of talked about the price of the panels. He said that when a house has these the “installed cost is less than a normal roof and the cost of electricity.” But there was no concrete pricing announced. The event was held on a Hollywood backlot where Solar City and Tesla had installed non-operating solar panels onto the houses you might recognize for the TV show, Desperate Housewives . The houses didn’t attract any attention before the event because they appeared so normal. He also showed off a house with a Tuscan style glass tiles that to the naked eye, you would be hard-pressed to notice that the roof was actually sucking up the energy of the sun. “People love their homes and we want them to be better, ” Musk said. Of course the entire equation requires batteries for a home to keep it lit up when the sun goes down. Tesla says the new Powerwall 2 will power a four bedroom house with lights, refrigerator and other appliances for an entire day. Musk said that they expect to start installing the glass tiles in summer 2017 and for the roofs to last a very very long time. “We expect this to have two or three times the longevity of asphalt. It’s really never going to wear out. It’s got a quasi-infinite lifetime. It’s made of quartz, ” he said. Tesla and Solar City are working with 3M on the coating on the glass tiles. Tesla has just come off an impressive quarter where it posted a profit for the first time in two years . It also announced earlier this month that all vehicles produced going forward would have the hardware capable of full autonomous driving . Developing. Source: Tesla

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Tesla unveils its solar roof and Powerwall 2

Wysips solar-cell display reaches 90% transparency milestone, we go eyes-on

Wysips popped by our trailer at the show this year to celebrate the 90% transparency of its photovoltaic display overlay achievement with us — and therefore with you. Last time we had a chance to peek through Wysips’ solar cell the transparency was sitting at 70% which was way short of today’s level and manufacturer requirements if this thing is ever to see the light of day. The current setup will not generate enough power to negate the need for a charger, not even close but what it could do is power all your music playback, for example while your phone is exposed to the sun. Wysips’ goal for 2014 is to reach a power return of 10 mWc per cm² as of today the output is closer to 3, though seeing as most of the effort has been focused on reaching this production-ready transparency, they’ve hope this will be attainable. Sampling should begin in march this year with potential for a product in the marketplace in September this year. Honestly, the demo sets available were pretty worn out looking, though the overlay spoke for itself in that it was still visible at extreme angles but barely when viewing straight on. Part of our demo was plugging an LED into the array that had been retrofit into an iPhone and seeing the LED light come on when the solar cell is exposed and go out when covered. Here’s hoping we get a proper working demo in the coming months though for the here and now, consider us guardedly impressed. A few pics comparing overlay versus no overlay are in the gallery below. Gallery: Wysips solar-cell display reaches 90% transparency milestone, we go eyes-on Filed under: Cellphones , Peripherals , Science Comments

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Wysips solar-cell display reaches 90% transparency milestone, we go eyes-on