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The application of Solar Heat

Despite its small size, the solar district heating system in Lodi, close to Milan, is one of few in Italy to feed surplus heat into a local network. Since March 2017, heat produced by a 192 m² solar thermal installation is used as a heating source.

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Redesigning District Heating Networks for Cooling Capacity

In the city of Helsingborg in Sweden, the municipal energy company Öresundskraft supplies District Cooling to a variety of customers in the downtown area. Customers include large users such as a pharmaceutical production facility and a major hospital together with an array of offices and other commercial buildings. The system that has been in operation since 1999 has now been reengineered to allow for an expansion to 30 MW (thermal) cooling capacity and to significantly improve energy efficiency and environmental performance.

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District heating system of Bolzano

The DH System of Bolzano in South Tyrol (northern Italy) was initiated in 1986 in order to satisfy a social housing district’s need for heat. From the end of the 1990 years began expansion, optimisation and from 2008 took place a massive expansion, made possible through the construction of a new waste incineration plant. Thus, a strong reduction of CO2 emission was possible despite a massive expansion of the network.

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Sustainable heat and power production

Assens Fjernvarme (Denmark) has supplemented their existing wood chip combined heat and power plant and an existing wind turbine with a solar cell system and an air to water heat pump system. This unique combination of renewable energy sources makes it possible to combine a low price for heat consumers with the production of green electricity when the electricity market needs electricity and purchase electricity from the electricity grid when there is a surplus of green electricity in the grid.

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Very-Low-Temperature District Heating

In Denmark, the first world-wide demonstration of a new concept of an efficient district heating system for low-energy buildings is established. The goal is to reduce district heating temperature
delivered to consumers to 50°C. In total, 122 sustainable climate friendly public houses are built.

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Smart Grid Pilot: Banco EnergETICO

Companies, Universities and NGOs are working together to green the Lombardian economy! A2A Calore e Servizi, Alfa Acciai, University of Brescia and DHPlanet have pursued the common goal of creating an innovative and efficient system for the recovery of energy from industrial thermal waste, deriving from the Alfa Acciai production site, in order to contribute to the supply of the district heating network already serving the city of Brescia.

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Heat recovery from steel mills

As part of the decarbonization project of the Brescia city energy system promoted by A2A (Italian multi-utility, operating in the environment, energy, heat, grids and technologies for smart cities sectors. District heating operator), which will make the city “Carbon Free”, there are two important circular economy projects that see heat recovery as the protagonist from production plants, specifically from steel mills.

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Low-Grade Waste Heat recovery in steel-making industry by coupling of Large Heat Pump and Gas Expander

Turboden will design and install an innovative industrial heat pump (Large Heat Pump) of about 5-7 MWth at the ORI Martin steel plant, through which it will be possible to increase (with the addition of electricity) the waste heat coming from the waste thermal low temperature of the steel plant from around 70 ° C to 120 ° C, the optimum temperature to then transfer it to the A2A district heating network.

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Bergamo Green

An agreement between A2A Calore & Servizi and REA DALMINE (waste to energy plant), owned by Greenthesis Group, will lead to a 50% increase in the heat available in the district heating network of the City of Bergamo.

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The establishment of an open district heating network

Warmtenetwerk Zaanstad B.V. has created the first open district heating network in the Netherlands in Zaanstad-Oost. This organization is a partnership between the municipality of Zaanstad, Firan, and the provincial authority of Noord-Holland. Thanks to the open structure, all suppliers and customers will ultimately be able to use the heating infrastructure under the same conditions. The district heating network, which has supplied heat to an existing residential district since 2019, is powered by a local small-scale biomass plant in this early phase. In the future, we will also be able to connect newly constructed homes and create links for new products, suppliers and users.

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