As demand grows and climate-change restrictions raise costs, developers are flocking to PACE financing for relief. : As demand grows and climate-change restrictions raise costs, developers are flocking to PACE financing for relief. Developers grappling with the cost of new laws enacted to combat climate change are taking advantage a little-known finance tool to help pay for green-building requirements. The model for the loans, known as Property Assessed Clean Energy, was created in 2008 to fund improvements that create environmentally sustainable and resilient properties.