sentences:  Green performance contracting provides comprehensive integrated solutions to a wide variety of building, site and infrastructure improvements, and it allows building owners to pay for these building sustainability improvements, including capital improvements or renewable energy, with funds in the organization's expense budget.The result is a better performing building along with all the public relations and marketing benefits of green buildings.Studies show that virtually every building suffers from incompletely installed controls systems, excessive chilling and heating capacity, and an inability to obtain the data needed to let senior decision makers understand how a building is really performing.