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New York • Google is investing $280 million to help private homeowners put solar panels on their rooftops. It's Google's latest and largest investment in clean energy.
The money will allow installer SolarCity to offer solar systems to homeowners for no money up front. In exchange, customers agree to pay a set price for the power produced by the panels.
Google earns a return on its investment by charging SolarCity interest to use its money and reaping the benefits of federal and local renewable-energy tax credits.
"It allows us to put our capital to work in a way that is very important to the founders and to Google, and we found a good business model to support," said Joel Conkling of Google's Green Business Operations in an interview before the company announced the investment Tuesday.
Google co-founder and CEO Larry Page wants Google's operations to eventually produce no net greenhouse gas emissions. To that end, Google has invested in wind farms in North Dakota, California and Oregon, solar projects in California and Germany, and the early stages of a transmission system off the East Coast meant to foster the construction of offshore wind farms.
This will be Google's seventh green-energy investment, totaling more than $680 million.
The money goes into a fund that SolarCity will use to pay for solar systems for residents. This type of fund is common in the residential solar industry, but this is the largest such fund ever created.
A typical rooftop solar system costs $25,000 to $30,000, too much for many homeowners to afford. Instead, solar providers such as SolarCity and competitors SunRun and Sungevity can pay for the system with money borrowed from a bank or a specially-designed fund. The resident then pays a set rate for power that is generated. The rate is lower than, or roughly the same as, the local electricity price.
A typical 5-kilowatt system will generate about 7,000 kilowatt-hours of power in a year, or about 60 percent of the typical household's annual use. The homeowner buys whatever remaining electric power he needs from the local utility. The homeowner typically enjoys lower overall power bills and is somewhat protected against potentially higher traditional electricity prices in the future.
Electricity prices haven't risen in recent months, unlike gasoline and heating oil. But they're expected to creep up in coming years as the cost of increasingly stringent clean-air regulations are passed on to customers.
These types of programs don't work well in all states, or for all homes. In order for both the solar company to make money and the homeowner to save money, there must be some combination of high local electric rates, state and local subsidies and low installation costs.
And, of course, sunshine. A home needs a roof, preferably facing south, that is not shaded by trees or structures.
Google's $280 million is expected to pay for 10,000 rooftop systems that will be installed during the next 18 months. These types of programs originated in California, by far the nation's largest solar market, since the state has offered generous incentives, power prices are high and there is ample sunlight.
In recent months, though, SolarCity and its competitors have announced expansions to other states and the establishment of new funds to pay for new systems. SolarCity offers service in Arizona, California, Colorado, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Texas and Washington, D.C.
SolarCity established a $158 million fund in May, while SunRun set up a $200 million fund, both with U.S. Bancorp. SolarCity has now raised a total of $1.3 billion. Also last month, Sungevity announced it would offer services through Lowe's stores in eight states.
Customers typically choose to finance systems. SolarCity says of the 15,000 systems installed, 12,000 were financed.
Google's investment generates returns in three ways. Google gets a tax credit from the federal government of 30 percent of the cost of the solar projects in this case, $84 million. It also can write off the total value of the systems in the year they are built, an accounting benefit called accelerated depreciation. The value of state and local tax credits also flow to Google.
Finally, SolarCity pays Google interest for the use of the funds through the rates it charges customers, though neither will say how much.
Google also declined to compare the return on its solar fund with the company's overall profit margin. In 2010, Google earned $8.5 billion on $29.3 billion in sales, a profit margin of 29 percent.
Investors have raised questions about investments that have little to do with Google's main Internet businesses and that may be potentially risky or generate lower returns. In a meeting with investors last month, Google Chief Financial Officer Patrick Pinchette said tax benefits from the projects can generate high returns.