Article - Energy-as-a-Service Could Be the Solution to Save Energy and Decarbonize Hotels with Zero Debt or Investment - The hospitality industry is energy intensive with the majority of hotels relying on PTACs to heat and cool the guest rooms. Energy costs are only second to labor costs for the hotel. In addition, franchisors are pushing the franchisees for investments in sustainability, EV charging stations and decarbonization or potentially the hotel could lose its flag.