New here?Quick start for Biogas (Dairy / WWTP)— typical inputs, what to ask the host, red flags
Typical inputs
Flow: 100–600 scfm for a typical dairy or mid-size WWTP digester; 600+ at large food-waste or co-digestion sites.
CH₄ %: 55–65% CH₄ raw biogas; if the host is considering RNG upgrade, model both paths and compare $/MMBtu equivalent.
What to ask the host
- Digester feedstock mix and whether throughput is steady or seasonal.
- Existing offtake — flared, boiler, RNG, or vented.
- H₂S and siloxane levels (dairy/WWTP often 1,000–4,000 ppm H₂S).
- Existing RNG interconnect contract terms, if any.
Red-flag inputs
- Comparing against RNG without accounting for D3 RIN volatility.
- Ignoring digester downtime during cleanouts (often 3–6 weeks/yr).
- Treating CO₂ from biogenic methane as a credit-eligible reduction.
Full walkthrough on the Guide. Formulas live in the Glossary.
Biogas (Dairy / WWTP) to Hash Feasibility
Model anaerobic digester biogas — dairy, WWTP, food waste — as a Bitcoin mining feedstock instead of (or alongside) RNG upgrade.
Raw biogas at digester outlet (pre-upgrade)
Dairy/WWTP biogas often 1,000–4,000 ppm — biological scrubbing assumed
Mining typically uses raw biogas; upgrade is usually only worth it if you can hit RNG pipeline pricing.
Typical range: recip 32–40%, microturbine 26–33%
Biogas (Dairy / WWTP) sites: typical range varies — include planned maintenance
Commercial-scale deployment: 261 × S19 XP across 7 containers. Grid-independent behind-meter system. Dual connectivity recommended (Starlink + LTE backup).