Tesla’s share of the home-solar market continues to slide

Tesla Solar RoofIf you’ve seen the light with electric cars, chances are you’re at least curious about home solar. Solar can help contribute to vehicle charging, and it can help reduce the load from the electrical grid during peak charging times. And as part of energy management systems, electric cars themselves (their traction batteries) could...

Transparent solar cells to let Audi capture energy from glass roofs

Audi and Chinese firm Alta Devices team up to develop a glass solar roof panelSolar energy has long generated electricity both on building roofs and in huge "solar farms" for utility companies, but only a few cars have had solar panels on their bodies. Solar roofs aren't a new concept, but Audi and Alta Devices' solution would be the most transparent photovoltaic solar roof implementation yet—literally. The German...

Tesla solar roofs can now be preordered; CA installations start in June

Tesla Solar RoofElon Musk, habitually behind schedule, announced on May 10 that anyone can now preorder a Tesla Solar Roof—a roof made of shingles with built-in solar cells. Musk had previously said preorders would open in April, and promised the product would cost less than a conventional roof if you factor in the energy savings. DON'T MISS: Tesla debuts...

Mercedes launches home energy-storage battery, echoing Tesla

Mercedes-Benz Energy BatteryAs Tesla regularly points out, the lithium-ion battery cells used in electric cars can also serve in home energy-storage units. Now, a Daimler company will go up against Tesla in that field under the branding of its most famous luxury-car make. Mercedes-Benz Energy announced yesterday that it is working with Vivint Solar to develop home...