MEMBER NEWS: Vattenfall plans hydrogen upgrade to Aberdeen offshore wind farm

January 5, 2022
MEMBER NEWS: Vattenfall plans hydrogen upgrade to Aberdeen offshore wind farm

Courtesy of Energy Voice.

New proposals would see the renewable energy developer add green hydrogen production equipment to the Aberdeen offshore wind farm (AOWF), with supplies piped to an onshore site near the city.

Also known as the European Offshore Wind Deployment Centre (EOWDC), the wind farm was completed in 2018 and has an installed capacity of 96.8 MW.

The site consists of eleven 8.8-MW turbines and an 8-mile array cable connected to an offshore transformer, which transmits the energy from the site to an onshore substation at Blackdog.

Vattenfall has set out new plans for the scheme in a November environmental screening report submitted to the Scottish government.

Dubbed Hydrogen Turbine 1 (HT1), the proposals aim to demonstrate the feasibility of offshore hydrogen production by installing hydrogen generating equipment on an extended transition piece platform at turbine B06, on the site’s north east side.

The equipment, comprising an electrolyser, desalination facilities and compressors, would be housed in up to seven 40 ft shipping containers mounted on the platform. Desalinated seawater would be used as an input and – assuming maximum capacity from the 8.8-MW turbine – the site could produce up to 0.18 cubic metres of green hydrogen per hour.

Produced hydrogen would then be transferred to shore via an 8” flexible flowline.

Several potential pipeline routes have been identified to both the north and south of the offshore site, though Fugro recently began a contract to carry out a survey for one route between the EOWDC and an onshore site at the north side of Nigg Bay, near the Aberdeen south harbour expansion project.

While the location of the onshore facilities has yet to be finalised, the scoping report suggests a site of up to 0.5 hectares, with storage capacity for up to 4 tonnes of hydrogen, compressed to 200bar. There would also be tanker refuelling facilities for up to four trailers, capable of holding up to 1 tonne of hydrogen each, compressed at up to 500bar.

Vattenfall said “various opportunities for offtake, including transportation, industrial uses and marine operations are currently being considered.”

Vattenfall’s report says the HT1 facility is “envisaged to be operational by 2024/5”, operating for between 8-10 years, which is the expected lifetime of the electrolyser system. EOWDC is currently licensed until July 2043.

When asked, the company said the plans were at an exploratory stage and it could not comment further.

However, in its submission the developer added that the demonstrator project would put Scotland “at the forefront of low-carbon hydrogen production” and help meet national hydrogen targets, as well as international efforts such as the European Union’s intention to reach 40 GW of renewable hydrogen capacity by 2030.

It also bodes well for local decarbonisation efforts, including plans for a £215m green hydrogen production hub in Aberdeen, for which Aberdeen City Council (ACC) picked BP as preferred delivery partner last November.

Read this story on the Energy Voice article here.


Get in touch

AREG is the original energy transition organisation, working on behalf of members to empower the energy supply chain and champion its expertise. Please get in touch if you have any questions or would like to find out more about membership.

AREG has played an important role in the growth of Scotland’s renewable energy sector, engaging the supply chain and developing the European Offshore Wind Deployment Centre. However, we are only at the very beginning of the transition that AREG was established to both lead and support so there are still opportunities for companies to get into the constantly evolving renewables supply chain. We look forward to continuing our work together as renewables builds on its place as Scotland’s main source of power, and as we seek to deliver real change in the crucial areas of heat and transport.

Scottish Renewables

Aberdeen & Grampian Chamber of Commerce has worked closely with AREG since its formation. The recent progress in the developments of offshore wind projects by Equinor and Vattenfall are as a result of the work of the group over many years. The north-east is known as the oil and gas capital of Europe. At the Chamber, we believe the region must evolve its position to being recognised as the energy capital. Whilst hydrocarbons will continue to be essential in driving our economy for years to come, the generation of renewable resources will play an increasingly important role in providing cost-effective power, innovative development and economic growth.

Aberdeen & Grampian Chamber of Commerce

The enthusiasm and dedication of the early group that would become AREG was fundamental in us choosing to launch All-Energy in Aberdeen. The first tiny show was held in 2001, and AREG’s Chairman at the time, Jeremy Cresswell, played such an active role that I often describe him in terms such as All-Energy’s ‘midwife’. All-Energy is now the UK’s largest renewable and low carbon energy exhibition and conference in terms of number of attendees, space booked, and number of exhibiting companies. As AREG became firmly established, their presence and support for the event grew spectacularly over the years. We thank them most sincerely for their invaluable input.


Vattenfall has forged a strong working relationship with AREG through the development of the European Offshore Wind Deployment Centre. AREG has worked tirelessly on behalf of the North East and it can take enormous credit for the growth of sustainable energy in the region and the path it has cleared for the region to capture further investment.


Aberdeen City and Shire is emerging as a key location for renewables by successfully transferring its world-class oil and gas expertise into the sector and AREG has done much to advance this through a broad range of initiatives. It has acted as a catalyst in driving further investment in the local economy by engaging with companies, Government, public bodies and existing projects and we have been pleased to support their efforts. Scottish Enterprise will continue to engage with AREG as we increase Scotland’s use of renewable energy.

Scottish Enterprise