
Plant & Technology
An industrial-scale multi-substrate plant — anaerobic digestion with an adapted temperature regime, upgrading to biomethane and a digital tech stack that is part of the process from the outset.
The core of the project
The plant is at the heart of Monte Alto. It converts a diversified mix of regional residues — vinasse, bagasse, filter cake, animal manure, organic agricultural residues — into pipeline-quality biomethane and into biofertilizer. Its character lies not in any single component, but in the interplay: a robust multi-substrate process, a marketable gas upgrading stage and a digital control layer that brings all three together from the outset.
The plant at a glance
The following overview shows the planned plant complex in context — from substrate delivery through the digester lines and gas upgrading to bio-LNG liquefaction, logistics and digital monitoring.

Heart of the plant
The process is based on proven anaerobic digestion with an adapted temperature regime and continuous substrate mixing. Three technical building blocks form the heart of the plant:
Multi-substrate anaerobic digestion with an adapted temperature regime
Accelerated biomass processing with continuous temperature control, designed for a diversified substrate mix rather than a single feedstock.
Upgrading to biomethane
Cleaning of the raw biogas to pipeline quality with a methane content in the upper range typical for the industry — suitable for grid injection and marketing (pipeline, LNG, CNG). Optionally a complementary power generation component.
Intelligent operation
Digital-twin and machine-learning-supported operations as an advisory decision basis for the operating team — with high plant availability as an operating target in line with industry standards.
Integrated digital tech stack
The plant is controlled by an integrated digital tech stack. It is not an after-the-fact addition, but part of the multi-substrate processing from the outset — a diversified substrate mix calls for correspondingly differentiated control.
Digital substrate management
Real-time monitoring of substrate availability, quality indicators and logistics utilisation — as a decision basis for the multi-substrate mix.
AI-supported forecasting
Predictions of substrate availability, plant performance and maintenance needs — data-based, with a learning curve across the operating phases.
Logistics optimisation
Route planning, just-in-time delivery and inventory control within a regional supply radius — minimising empty runs and securing continuous operation.
Designed for phased build-out
The plant is designed for phased build-out from the start: Phase 1 begins with a medium processing capacity on complete shared infrastructure, Phase 2 adds further digester lines as a modular tie-in on the pre-installed base. The logic of the build-out and the regulatory framework are described on the The Project page.
