The streetlights blink on. A warm glow wafts through the kitchen windows, infusing the friendly night air. It's evening at the Prince of Wales Zoological Garden, the first solar-powered zoo in India. Inspired by the 'sky's the limit' philosophy of Zoo Director Renu Singh, the entire zoo infrastructure--from electricity to water systems to even zoo vehicles and wheelchairs--is run completely on eco-friendly fuel. On top of providing a clean environment for visitors and animals, the initiative saves the zoo significantly on electricity costs and offers a supportive and healthy space for humans and animals.