The south-facing roof of Havens Wine Cellars in Napa, Calif., is home to a new 46.5 kW solar-power system.
The solar power system was designed and installed by San Francisco-based Sunlight Electric. After rebates and other subsidies, the winery states that its net expense will be 26% of the project's total cost, adding the system will pay for itself in a little over six years with a 17% internal rate of return.
‘The real highlight was the moment when the inverters were turned on and we all watched the meter start to spin backwards,’ says Michael Havens, the winery's owner. ‘That's a blast.’