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With Tesla's historic acquisition of SolarCity now pending, Elon Musk has announced two new solar products, including one that could disrupt the roofing industry.

Tesla and SolarCity could change the roofing industrySolarCity Twitter

As Electrek reported, during a conference call with investors Tuesday, Musk and SolarCity CEO Lyndon Rive said they were working on creating a roof made entirely of solar panels—solar shingles, if you will. Instead of tacking on solar panels onto an existing roof, the whole roof itself will be integrated with photovoltaic material.

"I think this is really a fundamental part of achieving differentiated product strategy, where you have a beautiful roof," Musk said. "It's not a thing on the roof. It is the roof."

Rive confirmed the project. According to Electrek, "Rive added that there are 5 million new roofs installed every year in the U.S. and if your roof is about to need to be replaced, you don't want to invest in solar panels to install on it since you are about to take it down, but if the solar panels are the roof and you need to redo it anyway, there's no reason not to go with a power-generating roof."

Roofs certainly don't last forever. As U.S. News explained, depending on the material, roofs can last more than 50 years but homeowners with roofs made of fiber cement shingles or asphalt shingle/composition roofs can expect a lifespan of 20-25 years. Inclement weather—snow, hail and hurricanes—can cut a roof's lifespan even shorter.

Asphalt roofs—which are by far the most common in the U.S.—also happen to create about 11 million tons of waste each year. Though inexpensive, asphalt shingles are also a petroleum-based product which carries major environmental impacts. So if a homeowner needed to re-shingle the roof anyway, why not go with shingles that could double as an electricity generator instead and might be better for the environment?

Musk, who is the chairman and largest shareholder of Tesla and SolarCity, said there's a "huge" market for roofs at the end of their lifespan.

He also said, according to Bloomberg, "If you need to replace your roof in the next five years, you're not going to get solar. What if your roof looks better and last longer?"

Musk and Rive did not provide exact details on the solar roof, but they are not inventing something brand new if they are proposing to produce solar shingles. Dow's Powerhouse was the biggest name to forge this path around 2009, but the technology was possibly too expensive and perhaps impractical to take off. The company decided to stop selling this product just this past June.

Electrek deduced that the other new Tesla/SolarCity solar product will be for existing roofs. The two products are expected be unveiled by the end of this year.

Meanwhile, Tesla's $2.6 billion stock offer for SolarCity awaits shareholder approval. In announcing its decision to combine with SolarCity, Tesla said it has a vision of "creating the world's only vertically integrated sustainable energy company."

Elon Musk's Master Plan: Part Deux is already coming to life.

Tesla Motors announced it has bought solar panel installer SolarCity for $2.6 billion in shares to create a seamless clean energy company. Or as Reuters puts it, consumers will now be allowed to buy solar panels, home battery storage systems and electric cars under one roof.

Tesla and SolarCity have created the world's first and only vertically integrated sustainable energy company.

Bloomberg tweeted that announcement was the "solar industry's biggest deal to date."

Tesla touted the merger in a blog post:

Just over a month ago, Tesla made a proposal to purchase SolarCity and today we are announcing that the two companies have reached an agreement to combine, creating the world's only vertically integrated sustainable energy company.

Solar and storage are at their best when they're combined. As one company, Tesla (storage) and SolarCity (solar) can create fully integrated residential, commercial and grid-scale products that improve the way that energy is generated, stored and consumed.

The enigmatic businessman perhaps poked fun at the historic vertical integration of the two companies in a classic Musk tweet:

According to MarketWatch, "SolarCity stockholders will receive 0.11 shares of Tesla for each SolarCity share, valuing them at $25.83 apiece."

Musk, who has long advocated for a sustainable transportation future, clearly stated in his Part Deux blog post that he wants his electric car company to "provide solar power."

"No kidding," he added. "This has literally been on our website for 10 years."

"We can't do this well if Tesla and SolarCity are different companies, which is why we need to combine and break down the barriers inherent to being separate companies," Musk continued. "That they are separate at all, despite similar origins and pursuit of the same overarching goal of sustainable energy, is largely an accident of history. Now that Tesla is ready to scale Powerwall and SolarCity is ready to provide highly differentiated solar, the time has come to bring them together."

Tesla first announced the offer last month at a slightly higher price of $2.8 billion.

Musk stressed the importance of curbing use of dirty energy as quickly as possible. "Given that we must get off fossil fuels anyway and that virtually all scientists agree that dramatically increasing atmospheric and oceanic carbon levels is insane, the faster we achieve sustainability, the better," he wrote.

Tesla said it expects that the merger will save customers money by lowering hardware costs, reducing installation costs, improve manufacturing efficiency and reducing customer acquisition costs.

The deal will now go to Tesla and SolarCity shareholders for approval. Musk, who is chairman of SolarCity and the largest investor in both companies has recused himself from the vote.

Last week, Tesla held a grand opening celebration of its massive Gigafactory outside Reno, Nevada.

The Gigafactory, which will be the world's largest building by footprint once construction is complete, will manufacture lithium-ion batteries for Tesla's electric cars and Powerwall products that store solar energy for homes and businesses.

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For Elon Musk, having one Gigafactory isn't enough. If all goes to plan, he wants to build Gigafactories on several continents.

A rendering of the completed Sparks, Nevada Tesla Gigafactory which will be topped by rooftop solar panels. The massive battery plant had its grand opening on July 29.Tesla Motors

Musk gave journalists a tour inside the company's massive Gigafactory Tuesday at it's grand opening celebration. The unflagging Tesla CEO told BCC he wanted a factory "in Europe, in India, in China ... ultimately, wherever there is a huge amount of demand for the end product."

Indeed, demand is high for Tesla's products—the company received nearly 400,000 pre-orders for its highly anticipated $35,000 Model 3 sedan.

The Gigafactory will manufacture lithium-ion batteries for Tesla's electric cars and Powerwall products that store solar energy for homes and businesses.

To make its products, Tesla currently imports batteries from Japanese electronics company Panasonic. In order to meet Tesla's ambitious aim of producing 500,000 cars a year, it partnered with Panasonic to build the $5 billion Gigafactory in Sparks, Nevada to make the batteries locally to speed up production and slash costs. By manufacturing the battery cells onsite, Musk said Tesla will be able to innovate faster and cut out about 30 percent of the cost, according to BBC.

"Where the shipping costs start to become significant, the obvious way to combat that is to at least put a Gigafactory on the same continent," Musk said.

The Associated Press reported that the Gigafactory is only 14 percent built after two years of construction. The original projected completion date for the massive project was 2020 but Musk is ramping up construction. Around 1,000 people are working seven days a week on two shifts so the factory can start producing batteries before the end of the year, The Wall Street Journal reported.

The Gigafactory in Sparks, Nevada is only 14 percent built after two years of construction.Tesla Motors

Once construction is complete, the Gigafactory will be about three-fourths a mile long at an enormous 10 million square feet—the size of 262 NFL football fields. Musk noted that the factory could eventually employ 10,000 people in the next three to four years.

Not only will the Gigafactory be the world's largest building by footprint when construction finishes, it will be powered 100 percent by renewables such as solar, wind and geothermal, and will feature energy-storage technology. The company also plans for the building to achieve net zero energy.

Musk tweeted that the building will recycle old batteries—which will be highly necessary as Tesla aims to nearly double the world's production of lithium-ion batteries.

Tesla wants the Gigafactory to be a global powerhouse. As the Associated Press described of the company's goals:

Tesla says the factory will be producing 35 gigawatt hours of batteries by 2018. That's the equivalent to the entire world's production in 2014. Tesla CEO Elon Musk has said the factory has the capacity to produce 150 gigawatt hours if it needs to. To put that in context, New York City uses around 52 gigawatt hours of energy per year.

Musk has long advocated for a sustainable transportation future, and recently made a $2.8 billion move to acquire SolarCity to basically allow Tesla customers to drive on sunshine.

Last week, the entrepreneur further explained his grand plans when he unveiled his Master Plan, Part Deux. Climate Nexus summarized Musk's goals in four bullet points:

  • Create stunning solar roofs with seamlessly integrated battery storage
  • Expand the electric vehicle product line to address all major segments
  • Develop a self-driving capability that is 10X safer than manual via massive fleet learning
  • Enable your car to make money for you when you aren't using it

"Given that we must get off fossil fuels anyway and that virtually all scientists agree that dramatically increasing atmospheric and oceanic carbon levels is insane, the faster we achieve sustainability, the better," Musk wrote.

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