Solar

The photovoltaic system is designed to offset 86% of the electrical load at the Utah Metal Works north building. The DC rating is 28.08 kW, with room to expand to 56.16 kW. It was designed to comply with the Buy American provision of the ARRA.

The array is 117 modules rated at 240 watts each, mounted on a standing-seam roof. Panels are wired in strings of 13, nine strings in all. Three SMA Sunny Boy 8000US inverters take three strings each. Estimated production is 35,121 kilowatt-hours a year.

Using the EPA greenhouse-gas equivalence figures cited with the original project, that production is on the order of:

• 53,391 pounds of carbon offset
• 4.7 passenger vehicles taken off the road for a year
• 2,715 gallons of gasoline not burned
• 621 trees planted