3H2 – Helsinki Hydrogen Hub

We are building a green hydrogen production plant in Vuosaari, Helsinki. This is Helen’s first hydrogen project with which we will increase our expertise to meet the needs of large-scale hydrogen production and enhance the flexibility to the entire energy system. This is also the first green hydrogen production plant to be built in Helsinki. The aim is to launch the hydrogen production in the new plant in 2026.

We enhance the flexibility to the entire energy system

In the 3H2 plant, hydrogen will be produced with renewable electricity, which means that the production is emission-free. This is the world’s first hydrogen project, which is designed to be an integral part of the optimisation of society’s overall energy system in the electricity, heat, transport and hydrogen markets as well as to serve as the solution for the flexibility of the energy system. The capacity of 3H2 – Helsinki Hydrogen Hub pilot plant project – will be approximately three MW. The project will reduce CO2 emissions by 3,700 tonnes per year.

We produce green hydrogen for heavy transport

Reduction of emissions makes green hydrogen an attractive alternative especially for heavy transport in which electrification is challenging. The produced hydrogen will primarily be used through a hydrogen filling station to be built in connection with the plant, which is mainly intended for heavy transport. The refuelling station, slated for operation by 2027, aims to meet the EU's AFIR target standards, contributing significantly to Finland's environmental targets and supporting the nation's transition to sustainable energy solutions.

Waste heat put to good use for Helsinki residents

The waste heat generated in the production process will be utilised in Helen’s district heating network, which means that the overall energy efficiency of the plant is over 90%. The plant is much more energy efficient than any project so far. The plant will be located in the vicinity of Helsinki’s district heating network and the busy Vuosaari Harbour which enables the seamless utilization of waste heat in Helsinki’s district heating network and the provision of zero-emission fuel solutions for heavy transport.