Tecnología
VIDEO: NRG Energy CEO David Crane: I Own a Tesla, Fisker and a Nissan Leaf
STORY: Ask Bill Clinton: How Can We Encourage Homeowners to Adopt Solar Energy?
The solar and distributed generation push is being speeded up by a parallel revolution in microgrids. Those are computer-controlled systems that let consumers and corporate customers do on a small scale what only a Consolidated Edison or Pacific Gas & Electric could do before: seamlessly manage disparate power sources without interruption. Microgrids have long been used to manage emergency backup power systems. A 26-megawatt microgrid completed in 2011 kept the power on at the U.S. Food and Drug Administration’s White Oak research center in the aftermath of Hurricane Sandy last year. It also saves the federal government an estimated $11 million a year in electricity costs. The microgrid’s ultimate potential, however, is in turning every person, company, or institution with a renewable energy power system into a self-sustaining utility. Imagine your house switching from power it generates itself to power from the grid the way a Toyota (TM) Prius switches from battery power to gasoline.
Outside the makeshift offices of Sunora Energy Solutions, in suburban Phoenix, the thermometer reads 112F on a recent afternoon as Crane takes a seat and begins explaining his plans to adapt to a post-grid world. While NRG’s main business remains supplying electricity to utilities in the wholesale market from Staten Island, N.Y., to San Diego, Crane has overseen about $1 billion in solar and green-tech investments, including a 50 percent stake in the 290-megawatt Agua Caliente utility-scale solar plant in Arizona due to be completed in 2014. (A Warren Buffett-controlled enterprise owns the other half.) Last year, NRG bought a 50 percent stake in 22-month-old Sunora for an undisclosed sum. Its business is stealing the revenue stream of the very companies NRG sells power to.
Outside the makeshift offices of Sunora Energy Solutions, in suburban Phoenix, the thermometer reads 112F on a recent afternoon as Crane takes a seat and begins explaining his plans to adapt to a post-grid world. While NRG’s main business remains supplying electricity to utilities in the wholesale market from Staten Island, N.Y., to San Diego, Crane has overseen about $1 billion in solar and green-tech investments, including a 50 percent stake in the 290-megawatt Agua Caliente utility-scale solar plant in Arizona due to be completed in 2014. (A Warren Buffett-controlled enterprise owns the other half.) Last year, NRG bought a 50 percent stake in 22-month-old Sunora for an undisclosed sum. Its business is stealing the revenue stream of the very companies NRG sells power to.
Sunora has only a few dozen employees and an overhead befitting its warehouse location. Still, it’s abuzz with ideas to tap into the changes detailed in the EEI report. Its engineers have come up with solar canopies that can be installed in supermarket and department store parking lots or above drive-up ATMs. They provide shade and generate clean power that can be used by the buyer or sold back to the grid. Sunora says it has pitched a mass purchase of canopies to a large U.S. retailer for its parking lots, though it won’t name the company. For customers who think the canopies are too industrial-looking, Sunora developed a decorative solar pergola—a kind of standalone patio—that provides the output of a rooftop system without cluttering the roof with solar panels. It can be installed in two days. Crane says he can sell lots of them to luxury hotels, though he hasn’t yet. Sunora is also working with DEKA, a Manchester (N.H.) technology-development company, on a microgrid package for homeowners. The price isn’t set yet, but Sunora executives say they hope to start selling a 10-kilowatt residential system for about $20,000 in 2015.
Businesses are adopting solar and smart microgrids at an escalating rate to beat rising power costs and burnish their green cred. Verizon is investing $100 million in solar and fuel-cell projects that will directly supply 19 offices and data centers in three states. Wal-Mart Stores, with 4,522 locations in the U.S., expects to have 1,000 solar-powered stores by 2020. MGM Resorts International’s Mandalay Bay resort convention center in Las Vegas hired NRG to install a 6.2-megawatt solar system—enough to meet as much as 20 percent of Mandalay Bay’s demand. Wal-Mart U.S. President Bill Simon extolled the virtues of the company’s solar program in March when he told an analyst at an investor meeting that solar was often cheaper than grid power. Besides, Wal-Mart has a lot of roofs, and “roofs are big places where we can gather a lot of solar,” Simon said.
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In full pitch mode, Crane sees an “underserved market” for NRG in bringing solar to businesses—from grocery stores to office buildings to athletic stadiums—requiring from 100 kilowatts to 10 megawatts of power. At Lincoln Financial Field, home of the Philadelphia Eagles, NRG installed a $30 million system of more than 11,000 solar panels and 14 mini wind turbines that can supply about a third of the stadium’s needs.
When Crane is asked whether he, CEO of a company that gets nearly all of its $8.4 billion revenue from selling coal-powered electricity to utilities, risks alienating his traditional customers, he says the changing world requires changing strategies. He then crisply runs through his vision of how the next two to three decades play out. The grid continues to shrink—U.S. power use actually peaked in 2007—as distributed generation captures an increasing share from utility-generated power. There won’t be much need for new large-scale transmission lines after that, except perhaps to gather and distribute power from remote wind farms. Crane says at least some existing transmission lines “are about to become stranded costs”—utilities simply won’t require the capacity they have now.
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