Gigastack, the UK’s flagship renewable hydrogen project, will demonstrate that renewable hydrogen is essential to the UK’s 2050 net-zero greenhouse gas emission target and the decarbonisation of large industrial clusters. Accelerating the uptake of renewable hydrogen through Gigastack is vital and will facilitate the development of a UK renewable hydrogen technology hub as well as the creation of a world-leading supply chain and highly skilled jobs across the sector.

What is Gigastack?

Gigastack is an ambitious multiphase programme to prove economically viable renewable hydrogen at scale and demonstrate the full decarbonisation potential of offshore wind in the UK’s largest industrial cluster by:

  • Developing electrolyser technology to produce renewable hydrogen at large-scale
  • Coupling one of the largest offshore wind farms in the world with the largest carbon emitting industrial zone in the UK on a pathway to net zero
  • Decarbonising large industrial clusters through collaboration

How will it work?

Click the hotspots to find out more about the different elements of Gigastack

Renewable electricity splits water into oxygen and renewable hydrogen.

Ørsted’s Hornsea 2 offshore wind farm connects to the UK’s electricity grid at this substation

The Phillips 66 Humber Refinery will use renewable hydrogen, reducing CO2 emissions

Hornsea 2 offshore wind farm generates renewable electricity

Project timeline

There are four high-level phases to the Gigastack programme that will take the concept from the feasibility stage to the build and supply stage in the mid-2020s.