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Carbon Capture & Storage

Ørsted eyes CCU and S at Danish biomass CHP plants

Ørsted eyes CCU and S at Danish biomass CHP plants
Ørsted's woodchip-fired Asnæs Power Station in Kalundborg, Denmark with the Kalundborg Refinery in the background (photo courtesy Ørsted).

Denmark-headed renewable energy utility major Ørsted A/S has announced that it is planning to establish carbon capture at two of its Danish biomass-fired combined heat and power plants. Ørsted says that it can be ready to capture and store up to 400 000 tonnes per annum as early as 2025 provided that financial support is obtained from the current tender for carbon capture and storage.

According to the company, the technology and logistics for handling and storing carbon dioxide (CO2) from the woodchip-fired Asnæs Power Station in Kalundborg in western Zealand and from the Avedøre Power Station’s straw-fired boiler in the Greater Copenhagen area, are in place.

If financial support is obtained from the current tender for carbon capture and storage (CCS), Ørsted can be ready to capture and store 400 000 tonnes of CO2 as early as 2025, which is also the objective of the political agreement on carbon capture and storage.

With carbon capture at the Asnæs and Avedøre CHP plants, we’ll be able to capture 400 000 tonnes of carbon from 2025, which can be stored in the North Sea. This will contribute significantly to realising the politically decided climate target for 2025, said Ole Thomsen, SVP, Ørsted.

Establishing carbon hubs

According to Ørsted, the two combined heat and power (CHP) plants have the best possible infrastructure, as they are linked to the grid and the district heating system and have their own harbours.

Our carbon capture plans are based on our newest CHP plants which will be in operation for many years to come, and which run on sustainable straw and woodchips, said Ole Thomsen.

Thus, they can act as hubs for the handling and shipping of both carbon and green fuels. Ørsted’s CHP plants will not only serve as hubs for the capture and shipping of its own carbon, but also for shipping carbon produced by other players.

The CHP plants are uniquely placed, as they have access to all the components which are needed for either capturing and shipping carbon or for using the carbon to produce green fuels, which can then be shipped from the CHP plants’ own harbours, Ole Thomsen said.

CCS in Kalundborg

In Kalundborg, Ørsted is, amongst others, in dialogue with Kalundborg Refinery about the possibility of capturing carbon from the oil refinery and piping it to Asnæs Power Station, before sailing it away for storage.

It’s already become evident how other companies with captured carbon can use our hubs as well. Kalundborg Refinery is the first potential partner, but there are several other players with carbon emissions where we also see a potential for collaboration. The entire supply chain is already in place, so the first volumes can be shipped and stored from 2025, Ole Thomsen said.

Asnæs Power Station and Kalundborg Refinery will focus on CCS.

The potential CCS partnership with Ørsted fits well with Kalundborg Refinery’s ambitions for a green transition. With this project, we will be able to reduce our CO2 emissions significantly already in 2025, and we look forward to collaborating on CCS and thereby contributing to this technology being developed on a commercial scale for the benefit of Danish companies and the climate, said Niels Bech, Director for Business Development at Kalundborg Refinery.

CCUS at Avedøre

Control room at Avedøre power station
The control room at Avedøre power station (photo courtesy Ørsted).

The straw-fired boiler unit at Avedøre Power Station has been designated for capturing and delivering some of the carbon to the initial phases of the Power-to-X (PtX) project ‘Green Fuels for Denmark’ (GFDK) where the ambition is to develop green fuels for the shipping and aviation industries.

Consequently, the straw-fired boiler at Avedøre Power Station will be able to deliver carbon for storage and for Power-to-X and to function as a hub for other players with carbon emissions in the Greater Copenhagen area – carbon capture, utilization, and storage (CCUS).

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