enough proof of construction repairs to pay off the balance of arrears to New York State. Renovations Within the first decade of the 2000s, the aging development began undergoing a complex-wide $240 million renovation, replacing piping and garbage compactors, rehabilitating garages and roofs, upgrading the power plant, making facade and terrace repairs, switching to energy-efficient lighting and water-conserving technologies, replacing all 130,000 windows and 4,000 terrace doors (costing $57.9 million in material and labor) and all 179 elevators. The word "renaissance" is being used to describe this period in Co-op City history. Many of these efforts are also helping in the "greening" of the complex: the power-plant will be less polluting, the buildings will be more efficient and recycling efforts will become more extensive. The New York State Energy Research and Development Authority (NYSERDA) awarded its largest ever grant—$5.2 million—to the community under its NY Energy $mart Assisted Multifamily Program. In 2003, after a partial collapse in one garage, inspectors found 5 of the 8 garages to be unsafe and ordered them closed for extensive repairs. The other 3 garages were able to remain partially open during repairs. To deal with the parking crisis, New York City allowed angled parking in the community, the large greenways in the complex were paved over to make outdoor parking lots and agreements were made with nearby shopping centers to use their extra parking spaces. All garages were re-opened by January 2008, and work began to restore the greenways that had been paved. Financial responsibility for these upgrades was the subject of a protracted dispute between RiverBay and the State of New York. Co-op City was developed under New York's Mitchell-Lama Program, which subsidizes affordable housing. RiverBay charged that the state should help with the costs because of severe infrastructure failures stemming from the development's original shoddy construction, which occurred under the supervision of the state. The state countered that RiverBay was responsible for the costs because of its lack of maintenance over the years. In the end, a compromise had the state supplying money and RiverBay refinancing the mortgage, borrowing $480 million from New York Community Bank in 2004, to cover the rest of the capital costs. In 2007, the power plant was in the process of upgrading from solely managing the electricity brought in from Con Edison to a 40-megawatt tri-generation facility with the ability to use oil, gas or steam (depending