Choose the gas pathway around the resource and customer.
Renewable gases are different products made through different processes. Biogas and biomethane can build on organic resources; renewable hydrogen and synthetic methane introduce other conversion and energy requirements. BioLPG serves an LPG supply chain. Compare the complete route to a customer rather than assuming these gases are interchangeable. [[ US Environmental Protection Agency, How Does Anaerobic Digestion Work? ](https://www.epa.gov/agstar/how-does-anaerobic-digestion-work), [ US Environmental Protection Agency, Renewable Natural Gas ](https://www.epa.gov/lmop/renewable-natural-gas); C01] Customer equipment, product specifications and the available delivery infrastructure constrain which pathway can serve a particular site.
Begin with the service required
A processor may need heat, a network buyer methane, a fuel-cell user specified hydrogen, and an off-grid business LPG. Establish the customer’s quantity, quality and reliability needs before choosing equipment. Where direct electrification can provide the same service, include it in the comparison.
| Pathway | Production concept | Main project question |
|---|---|---|
| Direct-use biogas | Use treated digester gas for suitable heat or power | Is useful demand available nearby? |
| Biomethane | Upgrade biogas; other biomass-conversion routes also exist | Can methane reach a customer economically? |
| BioLPG | Renewable propane through a suitable production process | Are verified fuel supply and LPG distribution available? |
| Biohydrogen | Convert a suitable biological resource through a defined pathway | What are input energy, emissions and customer specifications? |
| E-methane | Combine renewable hydrogen and suitable captured CO₂ | Do conversion costs and energy use support the customer value? |
Develop products alongside their markets
Shelby supports early practical biogas and biomethane deployment with tailored pathways for other gases. This is a policy position, not a declaration that every route has the same commercial maturity. For existing plants, compare retaining heat and power with upgrading or further conversion.
Include co-products without multiplying the same resource
Digestate and suitable recovered CO₂ may add value. Other pathways can produce different carbon products. Keep mass and energy balances explicit: one methane stream cannot be consumed in full by several options simultaneously. Additional products require their own quality, customer and operating-cost evidence.
Make a like-for-like comparison
Use the same customer service, delivery point, operating life and emissions boundary. Separate demonstrated performance, supplier quotations and assumptions. The most attractive route is the one supported by that project’s evidence, not a universal technology ranking.
Compare gas origin, conversion and actual compatibility
A gas name does not establish its renewable claim or suitability for an appliance. Compare the production boundary and the customer service before selecting a route.
| Feedstock | Energy source | Conversion | Output | Infrastructure compatibility | Stage / qualification | Market |
|---|---|---|---|---|---|---|
| Organic inputs | Biogenic chemical energy | Anaerobic digestion | Biogas | Site equipment must accept composition and contaminants | Measure gas; qualify treatment and combustion | Local heat or CHP |
| Biogas or landfill gas | Biogenic gas plus process energy | Cleaning and upgrading | Biomethane | Network or customer's methane specification; operator acceptance required | Recovery, methane slip, quality and origin evidence | Gas customers or transported fuel |
| Eligible biological gas or biomass | Biogenic input plus conversion energy | Reforming or thermochemical conversion and purification | BioH₂ | Dedicated hydrogen equipment and product specification | Route-specific yields, impurities and lifecycle accounting | Qualified hydrogen buyers |
| Water | Qualifying renewable electricity | Electrolysis | Hydrogen | Hydrogen-compatible storage and end-use equipment | Electricity accounting, load factor and fuel specification | Industrial or fuel-cell buyers |
| CO₂ and hydrogen | Electricity and other process inputs | Methanation | E-methane | Methane quality and operator approval still required | Carbon origin and electricity eligibility are distinct checks | Eligible methane users |
| Eligible oils / fats or other bio-based inputs | Route-specific process energy | Suitable refining / conversion | BioLPG | LPG specification and customer equipment acceptance | Biomass-origin and product evidence; supplier scale must be verified | LPG-compatible applications |
Hydrogen is not automatically bio-derived. Renewable methane and bioLPG may serve compatible existing assets only after specification, equipment and operator checks; no universal drop-in claim is made. Thermochemical intermediates require their own treatment and customer case. Compare non-gas options where they provide the same useful service at lower whole-system cost.
Frequently asked questions
Is hydrogen always made from biomethane?
No. Renewable-electricity electrolysis is a different route, and other production pathways exist.
Should every biogas plant upgrade to biomethane?
No. Direct use may deliver better overall value where useful demand is close to production.
Does including several gases mean one support mechanism fits all?
No. Their maturity, inputs and delivery requirements can justify distinct arrangements.
Sources & References
- US Environmental Protection Agency, How Does Anaerobic Digestion Work?
Publication: 2019-03-18
Observation period: United States; general technology description
Relevant page / section: Claim-level locator not yet verified
Last link / title verification: 2026-10-11
Publisher link checked; individual claims, costs and regulatory applicability still require review.
Supports process definitions. No Australian cost or project-outcome inference.
- US Environmental Protection Agency, Renewable Natural Gas
Publication: 2018-12-06
Observation period: Technology and delivery guidance; historical chart through 2023 not reused as a current census
Relevant page / section: Claim-level locator not yet verified
Last link / title verification: 2026-10-11
Publisher link checked; individual claims, costs and regulatory applicability still require review.
High for process context; US descriptions do not replace Australian specifications
- Australian Renewable Energy Agency (ARENA), The Hazer Process: Commercial Demonstration Plant
Publication: Date not verified
Observation period: Project overview carries a 3 June 2022 update date and links to later reports. Checked 10 October 2026. Distinct methane-pyrolysis demonstration; not a conventional steam-reforming cost benchmark.
Relevant page / section: Claim-level locator not yet verified
Last link / title verification: 2026-10-11
Publisher link checked; individual claims, costs and regulatory applicability still require review.
Project overview carries a 3 June 2022 update date and links to later reports. Checked 10 October 2026. Distinct methane-pyrolysis demonstration; not a conventional steam-reforming cost benchmark.
- Shelby Bioenergy, Shelby’s National Renewable Gas Policy consultation response
Publication: 2026-10
Observation period: October 2026
Relevant page / section: Supplied company position
Last link / title verification: Not verified
Company position / supplied material, not independent evidence.
Proposals and scenarios, not adopted policy or market offers.