Aspiria project on former Sprint campus in Overland Park to be powered 100% by wind energy Aspiria, a 207-acre development on the former Sprint campus site in Overland Park, will be powered by 100% renewable energy through a partnership between developer Occidental Management and utility company Evergy. Image courtesy Occidental Management. Aspiria, a vast multi-use development on the former Sprint campus in Overland Park, will be powered completely by wind energy, according to its Wichita-based developer Occidental Management. The company says it plans to have the 207-acre site powered 100% by wind farms in Kansas and Oklahoma in a partnership with utility Evergy.