$1 per watt
The BAPVC is a key part of the DOE SunShot Initiative to reduce the installed price of large-scale photovoltaic systems from $3 per watt to $1 per watt by 2020 without government subsidies.
Today, less than 1 percent of the electricity generated in the United States comes from solar power. But at $1 per watt, solar-generated electricity would be comparable in cost to electricity produced from coal-powered power plants.
That would give utilities a strong economic incentive to begin installing photovoltaic systems across the country, which in turn would dramatically increase the percentage of solar-generated power in the United States, according to DOE projections.
In a utility-scale photovoltaic system, about half of the installed cost goes into permits, power electronics, mounting hardware and other on-site construction costs. The solar module itself accounts for about half of the cost.
"To achieve the DOE's aggressive price reduction of $1 per watt by 2020, the module cost will have to go below 50 per watt," Cui said. "That is the goal of the consortium."
Whole-module approach
To address the DOE's price-cutting challenge, the consortium has adopted a whole-module approach to its research effort.
"Innovation will be required in every component of a solar cell module in order to achieve a price of 50 per watt," said BAPVC co-director Ali Javey, an associate professor of electrical engineering and computer sciences at UC-Berkeley. "While the solutions may be revolutionary, they must also be timely. We're looking for innovative technologies that can be transferred from the
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| Contact: Mark Shwartz mshwartz@stanford.edu 650-723-9296 Stanford University Source:Eurekalert |