Hamburg is promoting climate friendly production in a bid to halve CO2 emissions by 2030 over those in 1990 and by as much as 80 per cent before 2050. Industries across the city are already using climate-friendly technologies. In late April, the senate formed an alliance with industries (IVH) to improve their framework conditions, to identify and remove investment barriers and to boost co-operation between research and industry. Hamburg News presents four projects below.
Tests of CO2 free steel mill production
A study by HAW Hamburg showed that CO2 free steel production based on environment-friendly energy is technically possible. ArcelorMittal Hamburg GmbH will now undertake tests in its steelworks using hydrogen and environment-friendly electricity. Steel is highly recyclable and has a better environmental balance than many other industrial materials. Steel is also crucial to the energy transition as it is a basic component of wind turbines and electric cars etc.
Climate-neutral ice storage
The international Galab Laboratories GmbH uses climate neutral ice storage technology in Hamburg-Bergedorf to condition the air in the building and to cool the technical equipment. A tank with 1,000,000 litres of water positioned under the parking lot serves as an energy store for heat and cold. Coated windows reflect the sun’s rays or use them for heating, when needed. The company can save up to 70 per cent of CO2 with this energy distribution concept compared to conventionally air-conditioned buildings. Galab Laboratories wants to set up a 20,000 square metre life science campus with research facilities, industry and start-ups near the Energiecampus Bergedorf. A 3,000 square metre greenhouse is being planned for the roof, which will be 100 per cent renewable.
Industrial heat for downtown Hamburg
The eastern part of HafenCity is the first district in Hamburg to be fully supplied with CO2 free industrial heat by Aurubis AG. According to the copper producer, around 20,000 tonnes of CO2 are already avoided every year. Now the Hamburg-based firm wants to supply neighbouring residential areas as well. To do so, it aims to decouple waste heat, generated in a secondary process of copper production, and to transport it to the targeted area in a 3.7 km long heat pipe. Aurubis could supply the Hamburg district heating network and cover one tenth of all the city’s heating requirements with CO2-free heat. This would save up to 140,000 tons of CO2 annually.
Disposal – extracting raw materials with industrial waste
Indaver Deutschland GmbH’s hazardous waste incinerator in Hamburg can dispose of up to 100,000 tonnes of waste annually. Toxic components are rendered harmless at temperatures of up to 1,300°C and energy is generated at the same time. The resulting waste heat is fed into Hamburg’s district heating network via a neighbouring, combined heat and power plant. The company is also developing processes for retrieving important raw materials from waste on molecular levels. The aim is to make valuable metals, chlorine and other substances available to the business cycle again.