Hamburger Energiewerke GmbH is a municipal energy supplier for the Free and Hanseatic City of Hamburg, Germany. It provides green electricity, gas, and district heating to 168,000 customers and is the largest energy company in Hamburg. The company is a key driver of Hamburg's energy transition, aiming to produce district heating coal-free by 2030 and achieve climate neutrality by 2040. It operates various generation plants, e-charging stations, and an extensive energy infrastructure.