{"id":12231,"date":"2025-09-16T13:23:56","date_gmt":"2025-09-16T11:23:56","guid":{"rendered":"https:\/\/fvb.se.ny.haus.se\/fvb-news\/district-cooling-boom-in-molndal-sweden-new-thermal-energy-storage-to-be-built\/"},"modified":"2025-11-24T13:13:03","modified_gmt":"2025-11-24T12:13:03","slug":"district-cooling-boom-in-molndal-sweden-new-thermal-energy-storage-to-be-built","status":"publish","type":"fvb-nytt","link":"https:\/\/fvb.se.ny.haus.se\/en\/fvb-news\/district-cooling-boom-in-molndal-sweden-new-thermal-energy-storage-to-be-built\/","title":{"rendered":"District cooling boom in M\u00f6lndal, Sweden \u2013 new Thermal Energy Storage to be built"},"content":{"rendered":"\n
\"View<\/a>
M\u00f6lndal Energi is currently constructing a cooling accumulator tank, which has been designed by FVB. Photo: M\u00f6lndal Energi, Skvader Media Rickard Olausson.<\/figcaption><\/figure>\n\n\n\n
M\u00f6lndal Energi has built a new district cooling plant, trebling cooling production. The next step is a new Thermal Energy Storage (TES) tank adding another 6 MW of capacity. FVB has been responsible for the process design and coordination of commissioning the District Cooling Plant, as well as the design of the TES. FVB also proposed an innovative solution to optimise the TES tank.<\/h5>\n\n\n\n

A large part of the demand for district cooling comes from a new innovation cluster within Life Science. M\u00f6lndal Energi will also supply district cooling to the new suburb of Fors\u00e5ker.\n\u201cBecause we already had several new big customers signed on, we felt able to justify the investment needed here,\u201d says Mats Andersson, Head of the Project and Development Department at M\u00f6lndal Energi.\n\nGrowing demand for district cooling meant that M\u00f6lndal Energi decided to invest in a new district cooling plant in 2021. The energy company already had a 3 MW cooling plant called Berget, located in the centre of M\u00f6lndal in an old rock chamber that used to house oil-fired boilers originally used for district heating production.\n\nThe new district cooling plant stands in the same area as M\u00f6lndal Energi\u2019s CHP plant. Cooling is produced through a combination of absorption cooling, free cooling and compressor cooling. Absorption cooling uses summertime surplus heat from waste incineration and industry in the Gothenburg area. The new district cooling plant, completed in the spring of 2024, is connected to Berget, making it possible to run the grid from two locations.\n\nFVB has been responsible for the process design and coordination of commissioning the District Cooling Plant.\n\u201cAll-in-all, this is a big project involving a totally new basic infrastructure project for us. We are not a big company and do not have all the skills needed for such an expansion in-house. That’s why we brought in expert help and key skills,\u201d explains Mats Andersson before continuing:\n\u201cFVB were responsible for process design and function descriptions. They were also involved in commissioning and helping us to fine-tune the plant, which was very important to us.\u201d\n\nIn addition to the new district cooling plant, M\u00f6lndal Energi will also build a 6000 cubic meter TES tank. The tendering procedure is currently in progress and building is scheduled to start in the early autumn, with commissioning scheduled for 2026. FVB is designing the TES tank, has full functional responsibility and will guarantee the accumulator\u2019s performance.\n\nFVB has run advanced CFD calculations (Computational Fluid Dynamics) for the district cooling TES to simulate how the cold and warm water would move and stratify in the tank. The objective is to optimise the design and operation to retain dynamic stratification, which gives efficient cold-water storage.\n\u201cUsing the simulations, we found a completely new solution and unique design of the nozzles in the district cooling TES used to control and restrict the flow of water at the inlet to the tank,\u201d explains Bernt Andersson, Project Manager for FVB.\n\u201cThey are optimised to manage the flow needed and to minimise stratification in a completely new way, giving M\u00f6lndal Energi a highly optimised TES tank for its district cooling,\u201d concludes Andersson.<\/p>\n\n\n\n

\n\n\n<\/i>\n<\/p>\n","protected":false},"excerpt":{"rendered":"

M\u00f6lndal Energi has built a new district cooling plant, trebling cooling production. The next step is a new Thermal Energy Storage (TES) tank adding another 6 MW of capacity. FVB has been responsible for the process design and coordination of commissioning the District Cooling Plant, as well as the design of the TES. FVB also … <\/p>\n","protected":false},"featured_media":12232,"menu_order":0,"template":"","expertise-cat":[321,322,323],"services-cat":[178],"fvb-categories":[],"fvb-nytt-cat":[262],"class_list":["post-12231","fvb-nytt","type-fvb-nytt","status-publish","has-post-thumbnail","hentry","expertise-cat-district-cooling","expertise-cat-district-cooling-network","expertise-cat-district-cooling-produktion","services-cat-projekt","fvb-nytt-cat-all-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-nytt\/12231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-nytt"}],"about":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/types\/fvb-nytt"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/media\/12232"}],"wp:attachment":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/media?parent=12231"}],"wp:term":[{"taxonomy":"expertise-cat","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/expertise-cat?post=12231"},{"taxonomy":"services-cat","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/services-cat?post=12231"},{"taxonomy":"fvb-categories","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-categories?post=12231"},{"taxonomy":"fvb-nytt-cat","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-nytt-cat?post=12231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}