BIOGAS PROJECT EVIDENCE BRIEF
Yenra | Updated September 7, 2026
Article: https://yenra.com/biogas/

Purpose: trace a biogas project's material, energy and methane evidence. Fill one record for each proposed configuration, using project documents and measured data. Qualified specialists must handle gas-system design and operation.

Project/location, operator and stage:
Feedstock types and quantities (state units and period):
Composition, contamination and seasonality evidence:
Supply agreements and rejected-load arrangements:
Digester design basis and relevant operating references:
Operator staffing, training, maintenance and downtime plan:

GAS RECORD
Raw-gas quantity and period:
Volume reference temperature/pressure; wet or dry basis:
Methane fraction and gas-analysis source:
Treatment process and product-quality requirement:
Methane recovery into product (%), measurement basis:
Product quantity and purity:
Off-gas destinations; methane oxidation, flaring, venting or other fate:
Treatment/compression electricity and digester heat (units/period):
Energy customer, connection or purchase agreement:
Fictional component balance on one dry standard-volume basis: 1,000 cubic metres x 60% methane = 600 cubic metres methane. At 98% product recovery: 588 in product and 12 elsewhere. The 12 is not automatically an atmospheric emission; identify its fate. Total product volume also needs product purity.

DIGESTATE AND CLIMATE
Digestate quantity, analysis, treatment, storage and destination:
Alternative feedstock-management baseline and existing gas recovery:
Methane detection coverage, measured losses and repair records:
Transport, energy supply, digestate emissions and displaced service:
Greenhouse-gas metric/time horizon and uncertainty:
Result per delivered energy and/or waste managed, with units:

COMMERCIAL CHECK
Capital, utilities, labor, consumables and maintenance:
Contracted revenue versus assumed credits/incentives:
Authority confirming any incentive eligibility:
Risk owner for off-spec gas, rejected feedstock and customer interruption:
Open question / responsible party / evidence needed:

REFERENCE CONTEXT
The linked article explains the comparisons and limits. Check exact project or equipment documents before using a specification.
EPA AgSTAR’s digestion explanation
https://www.epa.gov/agstar/how-does-anaerobic-digestion-work
DOE’s Alternative Fuels Data Center
https://afdc.energy.gov/fuels/natural-gas-production
EPA’s RNG facility-operation best practices
https://www.epa.gov/system/files/documents/2022-11/RNG_Operations_Guide.pdf
AgSTAR project development handbook
https://www.epa.gov/sites/default/files/2014-12/documents/agstar-handbook.pdf