# Framework Applied: Wheatbelt Western Australia

## Context

The Western Australian Wheatbelt is a specific instantiation of the distributed fertilizer opportunity with properties that make it arguably the strongest first market globally. This document applies the framework to that specific context, with explicit confidence levels on all estimates.

The Wheatbelt is not a developing-world smallholder story. It is a commercial farming context with:
- Large farms (3,000-5,000 hectares typical)
- Significant revenue and existing capital access
- Extreme remoteness from port and distribution infrastructure
- Existing cooperative governance (CBH Group)
- Exceptional renewable energy resource
- A real and immediate emergency context (global fertilizer supply chain fragility)

---

## Objects

### Resources — WA Specific Properties

**Wheat straw**
- Yield: 3-4 tonnes/hectare (confidence: high — well measured in WA)
- Current use: burned or ploughed in — liability not asset
- Collection infrastructure: farmers already own baling equipment
- Seasonality: harvest December-January in most Wheatbelt regions
- Lignin content: high — pretreatment required (confidence: high)

**Solar resource**
- Peak sun hours: 5.5-6.5 hours/day (confidence: high — among best globally)
- Cost of utility solar installed in WA: $800-1,200/kW (confidence: medium — falling)
- Note: solar assessed but not primary energy path — biogas from straw is primary

**Water**
- Groundwater available across most Wheatbelt (confidence: high)
- Quality variable — some locations saline, may require treatment for SMR (confidence: medium)
- Dragon: specific site water quality unknown without testing

**Existing diesel infrastructure**
- All farms run diesel generation — existing energy infrastructure
- Diesel price in remote Wheatbelt: $2.20-2.80/litre (confidence: medium — volatile)
- This is a cost the system partially displaces

### Technologies — No Changes from General Framework
All technology objects as per general framework document apply. WA-specific notes:

**Ammonia storage**
- Australian safety regulations (HAZMAT, WorkSafe WA) apply
- Compliance cost: unknown, flagged as dragon
- Existing grain storage infrastructure (CBH silos) may inform siting and approval pathway

**Grid connection**
- Western Power operates the SWIS (South West Interconnected System)
- Coverage: extends into parts of Wheatbelt but not all
- Connection cost for export capacity: highly variable, $200k-2m+ (confidence: very low, dragon)
- Some Wheatbelt locations are off-grid entirely — electricity revenue may be unavailable
- Horizon Power operates in more remote areas — different commercial terms

### Actors — WA Specific

**Wheatbelt farmers**
- Farm size: 3,000-5,000 hectares typical (confidence: high)
- Annual fertilizer spend per farm: $200,000-500,000 (confidence: medium)
  - Note: this is current spend, not optimal spend — yield gap means real value of accessible fertilizer is higher
- Straw volume per farm: 9,000-20,000 tonnes annually (confidence: medium)
- Capital access: significant — these are commercial operations with banking relationships
- Risk tolerance: moderate — farmers are commercially sophisticated but conservative on novel technology
- Existing cooperative behaviour: high — CBH membership near universal, pooled grain marketing standard practice
- Dragon: appetite for this specific type of capital commitment unknown without direct engagement

**CBH Group**
- Australia's largest grain storage and handling cooperative
- Handles ~90% of WA grain (confidence: high)
- Existing infrastructure: silos, transport networks, financial systems across Wheatbelt
- Governance: farmer-owned, democratically governed
- Capital capacity: significant (confidence: high)
- Appetite for fertilizer production investment: unknown (dragon — most important actor dragon)
- Potential role: natural operator/owner of town-scale system, existing trusted relationship with farmers

**WA State Government**
- Strong motivation: food security, regional employment, decarbonisation targets
- DPIRD (Department of Primary Industries and Regional Development): direct remit
- Existing grant programs: RCDF (Regional Connectivity and Development Fund), others
- Emergency motivation: strategic sovereign capability argument very strong in current geopolitical context
- Dragon: which specific programs apply, what approval pathway looks like

**Federal Government**
- NAIF (Northern Australia Infrastructure Facility): may apply to some regions
- Critical Minerals and Food Security agenda: fertilizer sovereignty fits directly
- Emergency powers: available if supply disruption declared
- Carbon credit framework (ACCU): operates federally, Clean Energy Regulator administers

**Western Power / Horizon Power**
- Grid connection gatekeeper
- Commercial terms for surplus electricity export: unknown without specific application (dragon)
- May represent either a revenue stream or a blocking constraint depending on location

**Global fertilizer market**
- Incumbent: Yara, SABIC, OCI, CF Industries dominate global ammonia supply
- Middle East supply: ~15-20% of global ammonia from Gulf region (confidence: medium)
- Strait of Hormuz exposure: significant — disruption would spike global prices immediately
- This is not hypothetical risk — it is current and growing

---

## Properties — WA Specific Numbers

### Farm and Cooperative Scale

**Per farm (representative)**
- Hectares: 4,000 (central estimate)
- Straw available: 14,000 tonnes/year
- Straw deliverable (50% assumption, confidence: low): 7,000 tonnes
- Nitrogen demand: 400 tonnes/year (100 kg N/ha)
- Current fertilizer spend: $320,000/year at $800/tonne N (confidence: medium)

**Town cooperative (10 farms)**
- Total hectares: ~40,000
- Straw deliverable: ~70,000 tonnes/year (confidence: low — uptake rate dragon)
- Total nitrogen demand: ~4,000 tonnes/year
- Total current fertilizer spend: ~$3.2m/year (confidence: medium)
- Emergency fertilizer spend (3x price): ~$9.6m/year

### Methane Production

**Inputs**: 70,000 tonnes straw with lime pretreatment

**Methane yield**:
- Central estimate: 150 m³/tonne (confidence: medium — lab proven, field uncertain)
- Pessimistic: 100 m³/tonne
- Optimistic: 200 m³/tonne
- Real world discount applied: 30% reduction from theoretical
- **Central estimate total methane**: ~7.4 million m³/year
- **Pessimistic total methane**: ~4.9 million m³/year

**Note**: These numbers carry a dragon flag. Real world anaerobic digestion of straw at field scale in WA has not been demonstrated at this volume. This is the second most important dragon after Haber-Bosch capex.

### Methane Allocation

**For hydrogen production (SMR)**:
- Nitrogen demand: 4,000 tonnes N = ~4,880 tonnes ammonia
- Hydrogen required: ~880 tonnes H₂
- Methane required for SMR: ~420 tonnes CH₄ = ~590,000 m³
- **Fraction of total methane**: ~8% (central estimate)

**Surplus methane for electricity**:
- Central estimate: ~6.8 million m³/year
- Energy content: 36 MJ/m³
- At 35% generation efficiency: ~24 million kWh/year
- Wheatbelt town electricity demand: ~3-6 million kWh/year (confidence: low)
- **Surplus electricity**: ~18-21 million kWh/year

**Confidence note**: The surplus electricity number is highly sensitive to methane yield assumption. On pessimistic methane yield, surplus electricity approximately halves. The fraction going to SMR stays small regardless — fertilizer production is not the primary consumer of methane.

### Lime Pretreatment

- Lime required: ~5% of straw weight = ~3,500 tonnes/year
- Lime price delivered to Wheatbelt: $180-280/tonne (confidence: medium)
- **Annual lime cost**: $630,000-980,000/year
- Note: lime is already purchased by Wheatbelt farmers for soil pH — existing supply chain

### Labour

- Australian industrial labour: $80,000-120,000/year per operator (confidence: high)
- Operators required for automated facility: 2-4 FTE estimated (confidence: low)
- **Annual labour cost**: $160,000-480,000/year
- Dragon: Haber-Bosch operation may require more specialist skill than other components
- Mitigation: automation level is a design choice — higher capex trades against lower opex here

---

## Calculations — WA Specific

### System Capex (WA, 10-farm cooperative, 4,000 tonnes N/year)

| Component | Central Estimate | Range | Confidence | Dragon |
|-----------|-----------------|-------|------------|--------|
| Lime pretreatment unit | $300k | $200-500k | Medium | No |
| Anaerobic digester | $1.5m | $800k-3m | Medium | Civil works |
| SMR unit | $800k | $500k-1.5m | Low | Purity spec |
| PSA nitrogen separation | $300k | $150-400k | Medium-high | No |
| Haber-Bosch reactor | $1.5m | $500k-4m+ | Very low | **YES — central dragon** |
| Ammonia storage | $350k | $200-600k | Medium | Safety compliance |
| Gas genset | $750k | $500k-1.2m | Medium-high | No |
| Grid connection | $500k | $200k-2m+ | Very low | **YES** |
| Civil, installation, commissioning | $1m | $600k-2m | Low | Remoteness |
| **Total** | **$7m** | **$3.6m-15.2m** | **Low** | |

**Key observation**: The range $3.6m-15.2m is not useful for decision-making. It is almost entirely driven by two dragons: Haber-Bosch capex and grid connection cost. Slaying these two dragons collapses the range dramatically. Everything else is estimable with reasonable confidence.

### System Opex (Annual, WA)

| Component | Central Estimate | Range | Confidence |
|-----------|-----------------|-------|------------|
| Lime | $800k | $630k-980k | Medium |
| Labour | $320k | $160k-480k | Low |
| Maintenance | $400k | $250k-700k | Low |
| Catalyst replacement (annualised) | $80k | $40k-150k | Low |
| Water and consumables | $50k | $30k-100k | Medium |
| **Total opex** | **$1.65m** | **$1.1m-2.4m** | **Low** |

### Annual Value Generated (WA, normal market)

| Revenue stream | Central Estimate | Range | Confidence | Dragon |
|----------------|-----------------|-------|------------|--------|
| Fertilizer saving | $3.2m | $2m-5m | Medium | No |
| Electricity sales | $2.2m | $0-3.5m | Very low | Grid access |
| Carbon credits | $800k | $0-2m | Low | Political volatility |
| Digestate value | $400k | $200k-700k | Low | Application logistics |
| **Total revenue** | **$6.6m** | **$2.2m-11.2m** | **Low** | |

**Net annual value (revenue minus opex)**: $5m central, range $0.8m-8.8m

**Payback (central estimates)**: $7m capex / $5m net value = **~1.4 years**

**Payback (pessimistic)**: $15m capex / $0.8m net value = **~19 years**

**Honest assessment**: The central estimate looks compelling. The pessimistic case is not viable. The difference is almost entirely two dragons: Haber-Bosch capex and grid access. This is useful — it tells us exactly where to focus.

### Emergency Scenario (Hormuz disruption, fertilizer price 3x)

| Revenue stream | Emergency Estimate | Confidence |
|----------------|-------------------|------------|
| Fertilizer saving | $9.6m | Medium — price spike assumption |
| Electricity sales | $3m+ | Low — grid access still dragon |
| Carbon credits | $1.5m | Low |
| Digestate value | $400k | Low |
| **Total revenue** | **$14.5m** | Low |

**Emergency payback (pessimistic capex)**: $15m / ($14.5m - $2.4m) = **~1.2 years**

**Emergency assessment**: Viable under almost any capex scenario. Government funding likely available. Speed of deployment becomes the binding constraint, not economics.

---

## Pathways — WA Specific Sequencing

### Recommended Sequence

**Stage 1 — Now, regardless of dragon resolution**
Path A + B: Digester + digestate optimisation + bulk ammonia cooperative purchasing hub

- Capex: ~$2-3m (CBH could fund this without novel risk)
- Resolves: straw collection logistics, farmer trust, digestate application
- Generates: biogas, electricity, significant digestate value, bulk ammonia cost saving
- Produces data on: actual methane yield (slays dragon 2), actual farmer uptake (slays dragon 4)
- Does not foreclose: any future path
- Timeline: 12-18 months to operational

**Stage 2 — After dragon 1 (Haber-Bosch capex) and dragon 2 (methane yield) resolved**
Add SMR + PSA + Haber-Bosch to existing infrastructure

- Capex: $2-5m additional (range collapses once dragons slain)
- Uses: infrastructure from Stage 1
- Produces: first locally synthesised ammonia in Wheatbelt
- Resolves: remaining technical dragons through operation
- Timeline: 18-36 months from Stage 1 commitment

**Stage 3 — Open source release after Stage 2 operational**
Publish full design package, bill of materials, operating data

- Capex: near zero
- Activates: replication across Wheatbelt towns
- Converts: every subsequent installation into a dragon-slaying team
- Changes: the nature of the problem from commercial to commons

**Stage 4 — Electrolyser substitution when economics permit**
Replace SMR hydrogen with green hydrogen as electrolyser costs fall

- Monitor: do not commit capital until stack lifetime dragon resolved
- Infrastructure: Stage 2 Haber-Bosch accepts hydrogen from either source if designed correctly
- Design principle: build Stage 2 with electrolyser substitution in mind from day one

---

## Constraints — WA Specific

**Hard**:
- Distance from Perth: 200-500km — specialist maintenance visits are expensive and slow
- This is a design constraint: system must be operable and maintainable with local skills
- Straw seasonality: system must store feedstock or operate batch cycles

**Soft (currently active)**:
- WorkSafe WA: ammonia storage regulations apply, compliance pathway unknown
- Western Power: grid connection approval required for electricity export
- EPBC Act: environmental approval if native vegetation affected by facility siting
- Planning: Shire of [relevant LGA] approval for industrial facility

**Conditional**:
- Emergency declaration → State and Federal fast-track approval available
- CBH endorsement → farmer uptake constraint largely dissolves
- First successful installation → demonstration effect reduces risk perception across Wheatbelt

**Unknown (dragons)**:
- Whether WorkSafe WA has a clear approval pathway for ammonia at this scale
- Whether specific CBH silos could serve as approved co-location sites
- Specific water quality at candidate sites
- Whether any existing Wheatbelt infrastructure (grain dryers, gas storage) could be repurposed

---

## Phase Space — WA Specific

### Current Position
WA Wheatbelt sits at a symmetry point. The cooperative structure exists. The feedstock is being burned. The fertilizer is being trucked in. The emergency is real. No commitment has been made. All paths are open.

This is the highest-leverage moment. The symmetry breaks when the first cooperative commits.

### Symmetry Points
1. **CBH engagement**: approach CBH as potential owner/operator vs approach individual cooperative vs approach State Government as funder — different paths, different actors, different timelines, not all reversible
2. **Stage 1 technology**: digester design choices constrain Stage 2 integration options — get this right
3. **Open source vs proprietary**: once you go proprietary it is very hard to go back — this choice should be made deliberately before any IP is created

### Breaking Points — WA Specific
1. **CBH says yes**: changes everything — capital, logistics, farmer trust, replication all become easier simultaneously
2. **First Haber-Bosch vendor quote received**: collapses central dragon, makes Stage 2 decision possible
3. **State Government emergency funding announced**: compresses timeline, may force faster decisions than ideal
4. **Another country or region deploys open source version first**: changes the competitive/collaborative dynamic

### Forced Moves — WA Specific
- Engage CBH → forced to work within CBH governance timeline (slow, democratic)
- Bypass CBH → forced to build farmer trust from scratch without institutional support
- Choose remote site → forced to solve off-grid electricity — revenue stream may disappear
- Choose site near SWIS grid → site selection constrained, may not be optimal for straw logistics
- Commit to Stage 2 before Stage 1 operational → forced to solve all dragons simultaneously — high risk

### Dragons — WA Priority Order

**Slay immediately** (blocking Stage 2 decision):
1. Haber-Bosch unit: get vendor quotes from Starfire Energy, KBR small-scale, ThyssenKrupp, others — do not accept proprietary lock-in, negotiate open specification
2. CBH appetite: have the conversation — this actor's position determines the entire pathway

**Slay during Stage 1 operation** (data comes from running the system):
3. Real world methane yield from WA wheat straw with lime pretreatment
4. Farmer straw uptake rate — actual behaviour vs modelled assumption
5. Digestate application logistics and value realised

**Slay via targeted study before Stage 2 commitment**:
6. WorkSafe WA ammonia compliance pathway and cost
7. Western Power grid connection cost and feasibility at candidate sites
8. Water quality at specific candidate sites

**Monitor, not urgent**:
9. Electrolyser economics — check annually, integrate into Stage 4 when ready
10. Carbon credit market stability — treat as upside, not base case

---

## What This Document Cannot Tell You

With honesty:

- **Actual Haber-Bosch capex**: requires vendor engagement. Central dragon. Do not proceed to Stage 2 without this number.
- **CBH decision**: requires direct engagement with CBH leadership and governance process
- **Actual methane yield from WA straw**: requires pilot digester trial — Stage 1 resolves this
- **Grid connection cost**: requires Western Power scoping study for specific candidate sites
- **WorkSafe WA compliance cost**: requires regulatory pre-application meeting

These are not things better modelling resolves. They require teams walking specific territory and returning with specific numbers. Until those teams go out, the model remains useful for navigation but the payback range ($3.6m-$15.2m capex, $0.8m-$8.8m annual value) is too wide to make Stage 2 capital commitments confidently.

Stage 1 can and should proceed without resolving all dragons. It is low-risk, high-option-value, and itself resolves several dragons through operation.

Stage 2 requires dragon 1 (Haber-Bosch capex) and dragon 2 (CBH appetite) resolved before commitment.