plus heat partly from the waste energy plant ARGO in Roskilde and partly from the future Avedøre CHP plant.
• VEKS buys biomass-based district heating from the Avedøre CHP plant and from the waste-to-energy plants ARGO and Vestforbrændning. It also has its own biomass-based heat production from a CHP plant in Køge, a biogas engine in Solrød, and excess heat from the industrial company CP Kelco in Køge. VEKS delivers the heat to 19 local distribution companies in 12 municipalities. The development in the environmental declaration for district heating (kg CO2/MWh) delivered to an end-customer in VEKS' supply area shows a reduction in CO2 emissions of more than 76% in 2020 - the reduction is equivalent for an end-custom- er at HOFOR and CTR. So, in terms of environmental impact alone, the expansion of district heating in Greater Copenhagen has been a success. Varmelast Since January 7, 2008, Varmelast has handled the total load dispatching of the Copenhagen metropolitan area. In brief, load dispatching is an economic optimization of heat produc- tion hourly in proportion to the production costs and prices on the power market. Varmelast is a cooperation between HOFOR Varme, CTR, and VEKS. Before the power market liberalization, there were two large producers of district heating in the Copenhagen metropolitan area. The production companies had a joint load dispatching station. Back then, no confidential data were involved as they did not need to consider the liberalized power market. With the liberalization of the power market in the year 2000, the producers merged so that there was only one big produc- er of district heating in the Copenhagen metropolitan area, which handled the load dispatching of all the plants.
For outsiders, it may be surprising that two district heating transmission companies were established. It was a political de- cision that ensured the desired democratic influence among the companies' stakeholder municipalities. In the 1980s, Vestforbrænding had significantly greater heat production from burning waste than the company could sell to its district heating customers. Therefore, a pipe connection was established between Vestforbrænding and VEKS, so VEKS' supply area could use the excess heat instead of cooling it off in cooling towers. Subsequently, a line connection has also been established between Vestforbrænding and CTR, so that excess heat from Vestforbrænding can be delivered to CTR and/or VEKS depending on where the heat demand is most signifi- cant. What does the district heating system in Greater Co- penhagen look like today? The system today consists of four more or less linked systems: • Vestforbrænding, which supplies waste-based district heat- ing to five municipalities, is connected to the district heat- ing transmission networks of CTR and VEKS for excess heat supply. • HOFOR Varme covers a subset of its customers' heating needs by directly purchasing district heating from HOFOR Production - and the rest from CTR. • CTR, which buys biomass-based district heating from the CHP plants Amager and Avedøre - as well as the waste-to-en- ergy plants ARC and Vestforbrænding - sells the heat to five municipalities in the eastern part of Copenhagen.
For further information please contact: Lars Gullev, xxx@xxx.dk
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