888 Boylston is a 17-story, 425,000 SF, ultra-sustainable office and retail building featuring 365,000 SF of office space, and a new entrance to the Prudential Center shopping mall. Per developer Boston Properties, the building uses 45% less energy and 37% less water than a typical office building. A water-fueled chilled beam system circulates 100% fresh air throughout the building for cooling purposes, significantly increasing energy savings. Solar panels and 14 wind turbines on the roof of 888 Boylston produce up to 134 kW of power. 888 Boylston also includes sustainable features such as a green roof, outdoor terraces for tenants, energy-efficient lighting, a rainwater harvesting system and a green wall in the lobby.