From Port of San Francisco:
The EcoCenter at Heron's Head Park is an educational community center that uses sustainable on-site power, water and wastewater systems. It is owned and maintained by the Port of San Francisco, and operated by The Bay Institute Aquarium Foundation through a lease agreement with the Port. Nearly every feature of this facility is designed to educate the public about renewable energy, pollution and greenhouse gas reduction, wastewater treatment, sustainable building materials, rainwater harvesting and the green economy. In July 2013, the EcoCenter was certified by the United States Green Building Council as a Leadership in Energy and Environmental Design (LEED) Platinum building. It is the first LEED Platinum - Zero Net Energy Building in San Francisco.