Forest industry and energy technology major Valmet Oyj has announced that it ill supply a complete plant for the production of district heat to Göteborg Energi AB in Gothenburg, Sweden. The new boiler plant will run on wood pellets and replace two old boilers originally designed for oil and coal but converted to run on pellets in 2003.
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Last month, Göteborg Energi announced that it will invest around SEK 500 million (≈ EUR 47.7 million) in a new dedicated 130 MWth wood pellet fired hot water boiler at its Rya HVC district heat facility in Gothenburg. Demolition of the existing plant will start in April 2021, and the new plant will be started up in December 2021.
The goal of Göteborg Energi is that our production of district heat will emit zero CO2 by 2025. We have already taken many steps toward that goal, and I am very happy we are now also upgrading our Rya district heating plant. We will get a plant with modern technology that will serve us well for many years to come. Going forward, we will continue with our other planned steps toward a more sustainable city, said Anna Svernlöv, Head of Production at Göteborg Energi.
The new boiler plant will replace two old boilers originally designed for oil and coal but converted to operate on wood pellets in 2003. The new boiler will be 25 percent larger than the two old ones combined. It will also have a longer operating season.
Since the number of operating hours on pellets will increase, the use of natural gas will decrease. As a result, fossil carbon dioxide (CO2) emissions will be reduced by an estimated 25 000 tonnes annually with the new hot water plant and the ash from the combustion will be returned to the forest.
This is an important continuation of Valmet’s deliveries of pellet-fired plants, and the scope of the project is unique. The flue gas cleaning system will represent the best currently available technology, and the plant will be equipped with Valmet Industrial Internet solutions, too. This advanced technology will provide information on where maintenance is needed, enabling higher reliability and performance. This is an exciting project for Valmet, and we are looking forward to completing it together with Göteborg Energi, said Mikael Barkar, Senior Sales Manager, Energy Sales and Services Operations, EMEA, Valmet.
