Netherland, Sewell & Associates Inc. (NSAI) has prepared a Competent Person’s Report (CPR) confirming the 2P storage capacity of the Prinos reservoir at 51.5 million tonnes of CO2. Τhis assessment confirms that Prinos can support an annual storage capacity of 2.8 million tonnes for at least 15 years, while sensitivity analyses indicate the potential to extend the operating period beyond 15 years and up to 18–20 years, depending on the scenario.
Commenting on this development, Mr. Nikolas Rigas, Head of Carbon Storage at EnEarth, said, “Prinos CO2 has reached a highly significant milestone, as NSAI, an independent evaluator, also confirms that the Prinos reservoir is capable of permanently and safely storing volumes in the order of 2.8 million tonnes of CO2 per year for at least 15 years”.
“This represents another major step in the maturation of the project, which is the only CO2 storage project in Southeast Europe that has received environmental approval, obtained a storage permit, and secured an installation permit for the new offshore Omega platform to be installed by the end of 2026 at the Prinos complex to support the planned drilling campaign”.
“We are ready for the next steps, namely the approval from the competent authorities to proceed with the market test for the allocation of injection and storage capacity, which will demonstrate the strong demand for CO2 storage at Prinos from hard-to-abate industrial facilities”.
“This major investment, which will exceed €1 billion, is progressing according to schedule and is expected to operate at its full capacity of 2.8 million tonnes per year from 2030 onwards”.
The assessment was carried out in accordance with the guidelines and definitions of the 2025 CO2 Storage Resources Management System (SRMS) developed by the Society of Petroleum Engineers (SPE). The evaluation used data from wells drilled in the Prinos area, geological maps, seismic data, hydrocarbon production and water injection data, as well as estimates of project costs and investment recovery mechanisms.
