HOT|COOL NO. 2/2018 - "40 Years Anniversary"


THE EIGHTIES AND FORWARD In 1985, the activity in DBDH has increased to such an extent that a separate secretariat in Odense is established for better coordination of activities. The location in Odense also ensures that the many foreign visitors can see first-hand how Danish district heating actually works in a large city. DBDH has now grown into consisting of 32 member companies.

DBDH's work is now focused on three "legs": • Publication of the magazine News from DBDH - today known as Hot Cool. • Export promotion and reception of foreign delegations. • Network for members of the association. News from DBDH (Hot Cool) is characterized by articles at a professional level that reach decision makers and technicians in district heating worldwide. Yes – Hot Cool is becoming the largest district heating magazine in the world outside of China

The big step for DBDH at the international district heating scene takes place in June 1985, where the association participates in

with readers in more than 60 countries - and the magazine is free! It is available in print or a digital version and can also be read on THE FUTURE Now 40 years have passed, and from the original 18 members, DBDH currently has more than four times as many, 77. This could then be the end of the great adventure that began in Hans Christian Andersen's hometown Odense back in 1978.

Unichal's international district heating congress in Copenhagen. (Unichal is now known as EuroHeat & Power). By this time, DBDH is an established and respected player on the international district heating scene. The beachhead, which DBDH has now established internationally, is being expanded through the conclusion of cooperation agreements with a number of national district heating associations in North America as well as in Europe and Asia. The cooperation agreements ensure the coordination of activities such as conferences and seminars, delegation visits, exchange of technical information as well as market information of mutual interest and structure.

However, it is not.

With the EU's desire to place district heating high on the energy and climate agenda; with increased global focus on renewable energy and the efficient use

First issue of Hot Cool

In connection with the fall of the Berlin Wall in 1989, DBDH's focus changes from primarily North America, Western Europe and Asia to Russia and a large

of natural resources; with ideas for smart cities and livable cities, district heating and cooling have caught new attention - not just in Europe and North America, but also in Asia and the Middle East.

number of countries in the Baltic and Eastern Europe. Yes - the new markets thus, for a number of years, remove the focus from North America and Western Europe, as the new markets historically have a large prevalence of district heating. At the same time, many of these district heating systems were very worn down and the systems also heavily lag behind technologically. For that reason it is only natural that the attention is directed at these markets over the next 20 years. With the growing interest in Danish district heating technology in China, it seemed natural that DBDH established an independent unit in the form of a subsidiary organization in Beijing, DBDH China, to meet the interests of those members who focused on the Chinese

Although district heating is an old concept (moving hot water from point A to point B), the technological development has not been stagnant over the past 100 years. Over the past 100 years, district heating systems have evolved from generation to generation with still less demand for the flow temperature and thus increasing efficiency.

Today many district heating systems are established as 4th generation district heating systems (4G DH) with flow temperatures as low as 50-60 °C - indeed, some systems are established as Ultra Low Temperature District Heating (ULTDH) systems with flow temperature as low as 40- 50 °C.

Lennart Larsson, who invented DBDH

market. China has the world's largest population, of which a large part is living in areas where district heating is the natural form of heating.

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