Furniture giant, IKEA, just switched on a 573-kW solar power system, which covers 65,000 square feet of space at their Sacramento, California store. The array is made up of approximately 2,548 panels and will help to cut 630 tons of carbon dioxide per year from the atmosphere. The solar array is the eighth solar power project that IKEA has finished in the US, and they still have plans to build twelve more — four more in California and eight on the East Coast.