Rambøll is a member of DBDH and now a part of a consortium advising the Danish Energy Agency (DEA) on international green energy transition too. The DEA helps countries, government to government, to reduce their CO2 emissions by adjusting policy framework conditions improving district heating expansion. DBDH collaborates with DEA in this matter in Germany, the United Kingdom, the Netherlands, the United States, China, Ukraine, and Turkey. The DEA is advising on regulation, planning, and energy supply, while DBDH help to find specific answers for a sustainable district energy solution or integrating green technology into an existing district energy system. Very often a similar system is in operation in Denmark, being the most advanced district energy country in the world. DBDH then organizes visits to Danish reference utilities or expert delegations from Denmark to the country.