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Good Day Sunshine

By Katherine Bourzac

The park cost General Electric $75 million and is expected to turn a profit. Portuguese utilities are required to purchase electricity from the plant, with a federal subsidy of a few cents per kilowatt-hour. Customers whose utilities buy solar power will see less than a tenth of a percent increase in their electric bills. Wenger expects the plant to produce 21,340 ­megawatt-­hours of electricity each year, reducing the region’s carbon dioxide emissions by 13,000 tons over the same time period.