I recently visited the Alexandra Canal Depot. The depot provides waste, maintenance and construction services for the southern city area.
It has also been designed with a strong focus on environmental sustainability. The site has natural ventilation and lighting, roof water collection and re-use, solar power, energy and water efficient equipment and locally produced products where possible. It also has the Tesla Battery which can provide up to 500-kilowatt hours of electricity, which is enough to power 50 homes for an entire day!