Redrock Feedstock strategy
Securing and blending the right organic streams for stable, high-yield digestion, grounded in real contracts, contamination and seasonality rather than optimistic assumptions.
Anaerobic digestion & biomethane
The proven core, done properly.
Anaerobic digestion is where Redrock started, and it remains the backbone of what we do. We develop food- and agriculture-fed AD and biomethane projects end to end, grounded in the operational and microbiological reality that decides whether a plant performs.
- Feedstock strategy
- Biomethane to grid
- CHP, power & heat
- Biofertiliser
- Operations & optimisation
What we do
The full chain, feedstock to field.
Digestion & biogas
Process and plant design built on how the biology actually behaves, so the plant performs in operation and not just on paper.
Upgrading & grid injection
Cleaning biogas to grid-quality biomethane and getting it into the network under the right commercial and certification framework.
Energy, power & heat
On-site renewable gas, power and heat via CHP where grid injection is not the route.
Biofertiliser & nutrients
Turning digestate into a valuable, compliant soil product and recovering nutrients rather than creating a disposal problem.
Why it works
Not just another AD developer.
Microbiology-first
Plants live or die on the biology. We design, commission and troubleshoot from the microbiology outward, not from the equipment datasheet inward.
Feedstock realism
Real feedstock contracts, real contamination and real seasonality. We size and de-risk projects against what actually arrives at the gate.
An operator’s eye
Designed by people who have run AD plants, for the people who will run them, with reliability, safety and uptime built in from the start.
How we deliver
Concept to close, and into operation.
An in-house development team, supported by specialist partners, takes AD and biomethane projects from feedstock strategy and site selection through design, consenting and financing to a built, operating asset.
And because anaerobic digestion sits alongside our supercritical and sustainable-fuel work, we can see where AD is the right answer, and where it isn’t.
Where AD is the right answer
Clean, biodegradable, and better digested than burned.
Anaerobic digestion is the right technology for source-segregated food waste, commercial and industrial organics, agricultural residues, manures and the by-products of food and drink production. These are the streams where the biology does the work, the digestate returns nutrients to land as a compliant biofertiliser, and the carbon case is genuine rather than accounting. Where a stream is clean and biodegradable, digesting it beats burning it, and it beats sending it to landfill by a wide margin.
It is not the answer to everything, and we say so. Persistent, hazardous or non-biological wastes belong on a different route, which is why our supercritical processing sits alongside the AD portfolio rather than competing with it. Being able to see both lets us point a client at the right technology instead of the one we happen to sell.
Biomethane to market
Gas is only value once it is sold.
Producing biomethane is half the project. The other half is getting it to market under a framework a lender will underwrite. Where a grid connection exists, biogas is upgraded to network specification and injected, earning renewable-gas certificates alongside the commodity. Where it does not, the gas goes out as compressed biogas on a virtual pipeline to an offtaker. Either way the revenue stack of gas, certificates, gate fees and carbon has to be structured with the certainty that finance requires, not left to the merchant market.
We build that commercial case in step with the engineering, so the plant is sized to a real offtake and a real feedstock basket rather than an optimistic one. That is the difference between a project that reaches financial close and one that stalls at feasibility.
Have feedstock or a site in mind?
Whether it’s a new AD project or an existing plant that isn’t performing, let’s talk.
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