Copenhagen Infrastructure Partners has approved investment in Via Verde, a biomethane platform with 20 projects planned across several Italian regions. The programme is the first investment from the group’s Advanced Bioenergy Fund II and is intended to convert agricultural residues and other sustainable feedstocks into renewable gas.
Projects in the pipeline include sites in Lombardy, Abruzzo and Campania, giving CIP a portfolio spread across several agricultural and gas network areas rather than one large central installation. Each site will still require its own feedstock contracts, permits, process design, gas handling equipment and connection strategy, so common engineering has to be adapted to local operating conditions.
Production begins with anaerobic digestion, where microorganisms break down organic material inside sealed vessels and produce biogas containing methane, carbon dioxide and smaller quantities of other compounds. The raw gas then passes through upgrading equipment that removes moisture, carbon dioxide and contaminants until methane concentration and gas quality meet the requirements for injection, storage or another intended use.
Overall plant availability depends on feedstock reception, storage, pumping, digestion, upgrading, compression and digestate handling operating as one process chain. Temperature and chemical conditions inside the digester also have to remain suitable for the microbial population, so a disruption in one part of the installation can reduce gas output even when other equipment remains available.
Agricultural supply adds further variability because residues are distributed between farms and their quantity and composition can change through the year. Maintaining utilisation requires enough material of suitable quality within an economic transport radius, making supplier contracts, storage capacity and the balance between wet and dry feedstocks part of the production system.
Locating plants across several regions can shorten some transport routes by placing digestion closer to the material being processed while also allowing connections into different parts of Italy’s existing gas infrastructure. The same geographical spread multiplies the number of permits, construction programmes and feedstock arrangements under management, increasing the value of repeated technical standards where local conditions allow them.
CIP intends Via Verde to rely on wastes and residues rather than depend solely on purpose grown crops. That feedstock strategy can reduce competition for agricultural land, although overall environmental performance will still reflect transport distances, process energy use and control of methane losses during digestion, upgrading and storage.
Methane control is closely linked with plant design because fugitive releases can continue while production remains within its expected operating range. Valves, pipework, storage systems and upgrading equipment therefore require inspection and monitoring capable of identifying losses early. The same controls protect process yield because methane escaping from the system is also product that cannot be sold or injected into the network.
Italy’s established gas infrastructure gives the platform a route into existing industrial and commercial demand where biomethane meets the required specification. Existing gas consuming equipment can then continue operating while part of the carbon reduction occurs upstream through the origin and processing of the fuel.
Consistent gas quality across the portfolio will be essential because each project has to meet network specifications despite differences in feedstock composition and biological performance. Upgrading equipment and process control must absorb that variation before gas reaches the connection point, which places common quality requirements across otherwise different local plants.
CIP has not disclosed the combined production capacity or capital value of all 20 projects, leaving the eventual scale dependent on how many sites move through permitting, engineering and construction. The investment decision establishes the financing structure and development programme, while operating output will build as individual plants are commissioned and reach stable production.
The Advanced Bioenergy Fund II allows experience from early projects to be carried into later developments while spreading construction and operating risk across separate locations. Equipment specifications can be repeated where appropriate, although digester sizing, feedstock handling and upgrading capacity will still have to reflect the agricultural catchment and expected gas composition at each site.
As the first plants enter operation, measured data on feedstock availability, gas yield, upgrading performance, methane control and maintenance demand can be used to refine subsequent projects. That operating evidence will be especially important across a 20 site portfolio, where repeated engineering has to deliver consistent gas quality despite different local feedstock and connection conditions.
