Your Biomethane Development Pathway, VIC

Action plan

Confidence 0%

First / Perform a physical manure recovery audit to move from 'assumed' to 'known' feedstock tonnage.

Next / Screen the project against VIC EPA categories A07a/A07b to define the permitting timeline.

Then / Identify the specific Gas Distribution Network operator for the site and lodge a preliminary connection enquiry [VIC-6].

Decision gate / Review the net commercial return once CAPEX quotes and network connection costs are received. If gas injection costs are prohibitive, pivot to the 'candidate route' of onsite electricity generation.

Developing this pathway in VIC

Confidence 0%

Victoria currently hosts 133 public bioenergy registry records, with 7 matching renewable gas pathways (6 reporting a total of 56.1 MW capacity). The market context is defined by a transition toward renewable gases in the Victorian gas network, supported by existing large-scale operations like the Lilydale hub and Traralgon station. However, for a small-scale dairy project, the regulatory pathway is primarily governed by environmental and connection standards.

Screen EPA Permission Tiers

• Why it matters for you: Waste processing triggers specific Victorian environmental obligations that impact site layout and cost.
• Evidence needed: Determination if the facility falls under category A07a (large) or A07b (small) organic waste processing [VIC-3, VIC-4].
• Next action: Submit a pre-application enquiry to EPA Victoria to confirm the required permission pathway [VIC-2].
• Who confirms it: EPA Victoria.

Evaluate Digestate Management Requirements

• Why it matters for you: Nutrient management for 500 cows’ worth of effluent is a significant compliance and logistical factor in VIC.
• Evidence needed: A nutrient balance sheet for the land application of treated digestate [VIC-5].
• Next action: Soil testing of proposed application areas to determine nutrient loading limits.
• Who confirms it: A qualified agronomist or environmental consultant.

Declared Objective and Scenario

Confidence 0%

The objective is to investigate the conversion of manure from 500 fully housed dairy cows into biomethane within Victoria. You have selected a biomethane-led scenario which, according to deterministic model outputs (ecosystem-1.0.0), yields 441 Nm³/day of biomethane based on 346.75 operating days per year. This is compared against candidate routes for BioLNG (313 kg/day) or Electricity (1,208 kWh/day). It is important to note that while the herd size is declared, the actual available tonnage for digestion is not yet established. The commercial framework, including CAPEX and offtake terms, remains unknown. Consequently, the current modelled output serves as a technical potential rather than a verified production forecast.

Commercialisation screen

Confidence 0%

Commercial viability not established. The current assessment lacks essential data regarding CAPEX for the digestion and upgrading suite, OPEX for manure handling, and the specific terms of a gas offtake agreement. While biomethane is the selected scenario, the price for bulk biogenic CO2 is not verified on Shelby and must not be inferred from the recoverable mass of 534 kg/day. The next task is to complete a formal Commercialisation Screen. This must resolve the parasitic electricity load—the net energy remaining after the plant powers itself—to determine if the 1,208 kWh/day electricity alternative provides better local value than gas delivery. Until offtake pricing is secured, the project remains in the pre-investment phase.

Your next pathway decisions

Confidence 0%

The primary pathway involves anaerobic digestion of dairy manure. While the model suggests a capacity of 441 Nm³/day of biomethane, the gap between theoretical manure production and collectable volatile solids is a known risk. We must distinguish between the total herd count and the specific volume of manure that can be mechanically recovered from housing systems without excessive grit or water dilution.

Assess Feedstock Collection Efficiency

• Why it matters for you: Tonnage alone does not establish available feedstock; recovery rates in dairy environments vary significantly based on floor scrapers or flush systems.
• Evidence needed: A quantified audit of daily manure mass (tonnes) and total solids concentration recovered from the housing area.
• Next action: Conduct a fourteen-day manure collection trial to weigh actual inputs.
• Who confirms it: Your site operations lead or a biomass specialist.

Compare Biomethane Injection vs Onsite Electricity

• Why it matters for you: The 441 Nm³/day biomethane yield requires a gas connection, whereas the 1,208 kWh/day electricity route uses different infrastructure.
• Evidence needed: Distance to the nearest gas distribution main and a preliminary injection capacity enquiry.
• Next action: Locate the nearest gas asset and request a network constraints map.
• Who confirms it: The relevant Victorian Gas Distribution Network operator [VIC-6].

Frequently asked questions

Can I sell the 534 kg/day of CO2 mentioned in the model?

Commercial recovery is not established. While the model shows mass potential, saleability depends on purification costs and local buyer demand, which are currently unknown.

Is the 1,208 kWh/day electricity output additional to the gas?

No, these are alternatives. You must choose between gas injection, BioLNG, or electricity; they are not additive outputs from the same gas pool.

Does a herd of 500 cows guarantee this gas volume?

No, the model assumes specific manure properties. Actual gas yield depends on your specific collection methods and the volatile solids content of the manure.

Will Victorian government certificates improve the project's return?

Certificates and external funding are excluded from this base case to ensure the core commercial viability is assessed first.

Sources & References

www.energy.vic.gov.au

www.epa.vic.gov.au

www.epa.vic.gov.au

www.epa.vic.gov.au

www.epa.vic.gov.au

www.agig.com.au