Hynion's hydrogen refueling station in Porsgrunn was acquired in 2019 and has not been in use since. This is due to stricter requirements, the need for technical review and low demand in the region. But in line with the rollout of more hydrogen vehicles due to stricter environmental requirements, the demand has increased.

Hynion now has completed a major overhaul and update of the station, and the station has undergone third-party certification and been approved. Now all that remains is for Direktoratet for samfunnssikkerhet og beredskap (DSB) to finalize the certification. The hydrogen refueling station in Porsgrunn was built by Norsk Hydro and was completed in 2007.

It became part of the "Hydrogen Highway" which was inaugurated in 2009 and consisted of four hydrogen refueling stations on the E18 from Oslo to Stavanger. The station is a flagship with its underground hydrogen tanks and a dispenser for 700 bar for both passenger cars and heavy vehicles. When the station now reopens, this will be the fifth in Hynion's operation, which cements the company as the larger player in the Nordic market.

The lengthy process of reopening the station is, among other things, because the documentation from the manufacturing of Norsk Hydro was no longer available and had to be largely recreated from subcontractors. This was a comprehensive and time-consuming task. Additionally, the recertification of the pressure tanks required pressure testing with 15,000 cycles, which also consumed a significant amount of time.