Tesla CEO Elon Musk made a much anticipated announcement at an event in Los Angeles on Friday. Musk noted that Tesla’s mission wasn’t just to be a car company, but accelerate the transition to sustainable energy, especially in light of rising CO2 levels. To achieve this, Musk said it’s a simple three-part solution: a solar roof combined with storage and electric cars. “It needs to be beautiful, affordable and seamlessly integrated. It’s really straight forward, it’s not that complicated,” he said during this presentation.

Here are some of the main details. You can also watch the full presentation below as well.

A solar roof that’s a better roof
“How do we have a solar roof that’s better than a normal roof,” Must asked during his presentation. Musk announced that Tesla and SolarCity’s new roof solution is the answer. He said the solution is cheaper than the cost of a regular roof plus electricity, looks better, has a better insulating effect and lasts longer. “Why would you buy anything else?” he said.

Though the tiles look like shingles they’re actually made of durable glass. Musk said that using glass allows making a roof that’s stronger and will last longer than a traditional roof. Glass also allows light to pass through to solar cells underneath. If the acquisition goes through, Tesla wants Panasonic to produce these cells, while Tesla assembles the tiles and other components.

Tesla said customers would be able to choose which sections of their roof will contain the hidden solar cells while still having the entire roof look the same.  Tiles come in textured glass, slate glass, Tuscan glass and smooth glass to complement a variety of architectural styles.

“If you’re building a house or redoing your roof then this is the way to go,” he said. “But if you have a new roof then you’ll want to put solar panels on that roof.” With four to five million new roofs in the U.S. every year, Musk sees lot of potential for whole neighborhoods installing solar roofs.

More powerful storage solutions
Musk also introduced a new solution for the storage part of the equation: the Powerwall 2, priced at $5,500. “This is a big step from the Powerwall 1,” he said.

The 14-kWh lithium-ion energy storage/7-kw power output Powerwall 2 is able to produce twice as much energy as its predecessor.  The unit also features a liquid thermal control system, an integrated inverter and software that intelligently dispatches electricity when it’s needed most. The unit mounts on a wall or on the ground, indoors or outdoors, and is integrated with the grid to export excess energy, maximizing the opportunity for economic benefit.

Tesla’s plan is to combine the solar roof with its Powerwall 2, which he said is able to power lights, sockets and a refrigerator for a four-bedroom house for an entire day, and with solar you can power indefinitely.

Powerwall 2 specs:

• Mounting: Wall or Floor Mounted, Indoor/Outdoor
• Inverter: Fully integrated Tesla inverter
• Energy: 14 kWh
• Power: 5 kW continuous, 7 kW peak
• Round Trip Efficiency: 89% for AC Powerwall, 91.8% for DC Powerwall
• Operating Temperature Range: –20°C to 50°C (–4°F to 122°F)
• Warranty: Unlimited cycles for up to 10 years
• Dimensions: 1150 mm x 755 mm x 155 mm (45.3 in x 29.7 in x 6.1 in)
• Weight: 122 kg (269 lbs)

Tesla also announced the Powerpack 2 solution (210 kWh/50 kw for the utility market. The solution can scale to unlimited size. Musk announced this solution will be incorporated to an 80 MWh utility battery project with with Southern California Edison. He said this will be the largest utility battery project in the world. Tesla is also working on a 52 MWh project in Hawaii. “You’ll see a lot more of these projects announced over time,” he said.

Powerpack 2 specs:

• Inverter: Tesla inverter
• Inverter efficiency: 99%
• Inverter: Tesla inverter
• Energy: 200 kWh to hundreds of MWh
• Inverter: Tesla inverter
• Power: 50 kW to 100+ MW
• Inverter: Tesla inverter
• Round Trip Efficiency (whole system): 89%
• Inverter: Tesla inverter
• Operating Temperature Range: –30°C to 50°C (–22°F to 122°F)

Musk made a point of saying that residential solar generation with the solar roof is not to be competitive to utility solar generation, but complimentary to it. “If you transition all power to electric, that roughly triples the amount of electricity that’s needed,” he said. “You need a third for transport, a third for heating and a third for what we currently use as electricity. The future if bright for utilities and for local power generation.” He sees a third of electricity being local power generation and two thirds utility generation.

Possible issues with Tesla’s plan
Of course, the deal for Tesla to buy SolarCity is still contingent on shareholder votes on November 17. Some are also skeptical because Tesla hasn’t released details on its business model, the solution cost, performance data or how financing would work. How do solar installers gain the roofing knowledge needed for the installation, or how do they get in front of a customer who is looking for a roof but will probably approach a roofing contractor, rather than a solar company? So the question remains. Musk will have to develop plans for this new approach as we enter 2017 if his big ideas are to take flight as he hopes.