Repsol to build Spain's largest electrolyzer in Tarragona by 2026

The 150 MW facility at the Tarragona Industrial Complex will drive renewable hydrogen production in Southern Europe.

Generic image of a renewable hydrogen industrial facility with piping and electrolysis technology.
IA

Generic image of a renewable hydrogen industrial facility with piping and electrolysis technology.

Energy giant Repsol plans to approve the installation of a 150 MW electrolyzer at its Tarragona Industrial Complex during the first half of 2026, marking the largest project of its kind in Spain.

The T-HYNET initiative aims to produce up to 2.7 tons of renewable hydrogen per hour. This green hydrogen will serve as a sustainable raw material for local industries, including the production of e-methanol at the upcoming Ecoplanta facility, and will eventually support heavy duty zero-emission mobility.
Backed by 104.19 million euros in Next Generation EU funding, the project is expected to be operational by 2028. It is estimated that the facility will prevent 200 kilotonnes of CO2 emissions annually, equivalent to the carbon absorption capacity of approximately 4 million trees.
This investment is part of Repsol's broader strategy to decarbonize its industrial hubs. In Tarragona, the company is also developing the Ecoplanta, an 800-million-euro project scheduled for 2029 that will transform urban waste into circular methanol.