Germany – Construction works for plants, mining and manufacturing and for buildings relating to the oil and gas industry – EU-weite Ausschreibung einer Biogasreinigungsanlage im Rahmen der Erneuerung der Gasverwertungsanlage

The Zweckverband Abfallbehandlung Kahlenberg (ZAK) is tendering a biogas cleaning plant as part of a modernization project for its gas utilization facility in Ringsheim, Germany. The procedure is a negotiated procedure with prior call for competition. Only one lot (LOT-0001) is clearly described; additional lot entries are incomplete. No estimated contract value is provided. Submission deadline is 15 June 2026 at 11:00 CEST. Key eligibility criteria include a minimum annual turnover of EUR 2 million, a reference project of at least EUR 500,000 net for a biogas treatment plant, and liability insurance of EUR 2 million.