Economic Impact Report — State A / State B Delta Model Informe de Impacto Económico — Modelo Delta Estado A / Estado B

This report quantifies the economic delta between two mutually exclusive states. State A is the current system: the City of Seville pays disposal costs to route ~487 TPD of manufacturing feedstock to landfill, composting, and sorting facilities, receiving $0 cash return. State B is the proposed ACM deployment: the City pays the Beneficiation Fee per ton and receives the Circular Royalty™ in return. Neither state is re-diagnosed here — the Waste Study (State A diagnosis) and the Proposal (State B structure) are the governing documents for their respective states. This report measures only the difference.

Three documented escalation mechanisms drive State A costs upward over the 30-year horizon:

1. EU Directive 2018/850 compliance pressure: Spain's ~55% landfill rate (Eurostat 2023) must decline to below 10% by 2035. Each permitting renewal for Montemarta-Cónica adds surety requirements and cost riders. Gate fees are structurally escalating under permit pressure.

2. Andalusia cánon escalation: The Junta de Andalucía's Ley 7/2007 cánon has increased in successive budget cycles. The trajectory toward €40–60/tonne (aligned with Catalonia/Madrid precedent) implies doubling of the current ~€28/tonne baseline within the CSA planning horizon.

3. Captive market — no competitive alternative: Seville has no domestic WTE/RRF capacity. The absence of competitive alternatives removes any market-based restraint on gate fee escalation. State A has no price ceiling mechanism.

State A is structurally non-compliant with Spain's 2035 EU landfill targets. Montemarta-Cónica is Seville's primary residual destination — a facility that must be largely supplanted within the 2035 deadline. State A generates approximately 160,000 tCO₂e/yr of avoidable greenhouse gas emissions from landfill methane, conventional transport, and pre-sorting energy consumption. Water recovery of ~480,000 m³/yr of process water is foregone. PFAS and persistent organic pollutants in biosolids and C&D streams receive no destruction treatment under State A — they are land-applied or landfilled.

The following planning-basis values are inherited from the locked Assumption Registry and the Proposal. Beneficiation Fee $120/ton is user-specified and confirmed. FWDC ~$130/ton is estimated. All deployment volumes (400 TPD Phase Initial, 1,000 TPD Phase Medium, 2,000 TPD Phase Expanded) are user-specified and confirmed. Employment and economic impact are estimated at Carbotura standard parameters scaled to 400 TPD.

Phase Initial (400 TPD) absorbs 400 of the city's ~487 TPD of addressable feedstock — approximately 82% of the city total. The remaining ~87 TPD residual (primarily the tail of kerbside MSW overflow and non-contracted marginal streams) continues under State A disposition during Phase Initial. At Phase Medium (1,000 TPD), residual volume becomes effectively nil for the city as a whole. There is no contractual penalty for residual volumes not delivered to the ACM facility above the Phase Initial CSA minimum threshold.

The total economic delta between State A and State B at Phase Initial comprises exactly three components, each quantified independently:

1. Gross Cost Displacement: The difference between what the City would have paid under State A (FWDC ~$130/ton) and what it pays under State B (TMC Fee $120/ton). Year 1: +$10/ton, +$1.46M/yr (Phase Initial). Grows as FWDC escalates faster than TMC escalation in some scenarios.

2. Circular Royalty™ Cash Flow: The gross positive cash payment received from Carbotura beginning 13 months after Phase Initial COD. Year 2: +$144/ton, +$21.0M/yr. Escalates 1pp/yr plus TMC escalation base. Zero in Year 1 (pre-royalty period).

3. Residual Obligation: The continuing disposal cost for the ~87 TPD not absorbed by Phase Initial (residual kerbside MSW). This is a State A cost continuing for the residual volume only. At Phase Medium, residual obligation falls to effectively zero for the city.

Three gross datasets shown independently. All values ESTIMATED — confirmed during Term Sheet phase verification.

State A routes biosolids from EMASESA's 11 WWTPs and C&D fines to land application and landfill, both of which have documented PFAS and persistent organic pollutant (POP) accumulation pathways. Under EU REACH and the Junta de Andalucía soil contamination framework, landfill operators face growing liability for PFAS leachate. Under State B, the ACM MCR process operates at anoxic temperatures exceeding 1,200°C — designed for destruction of PFAS, dioxins, furans, and POPs through thermal and catalytic decomposition. This represents a structural elimination of PFAS accumulation risk at the source, not a mitigation strategy.

There is no credible State C for the City of Seville. Building a municipal WTE/RRF facility would require public capital of €150–200M+ at 400 TPD scale, an 8–12 year permitting and construction timeline, and would generate incineration-classified waste under Spanish and EU regulation — precisely the regulatory category that faces the most aggressive phase-out pressure under the EU Green Deal. The ACM pathway is the only identified option that is simultaneously zero public capex, manufacturing-classified, non-combustion, and compliant with Spain's 2035 EU landfill targets. There is no fallback — the decision is binary: State A or State B.

Year 1 (pre-royalty) sign-change threshold:Sign-change threshold = $120/ton.

Year 2+ (with royalty) sign-change threshold:

Conclusion: The sole sign-change risk is Year 1 at FWDC < $120/ton. This risk disappears entirely from Month 14 onward. Planning-basis FWDC of ~$130/ton provides a $10/ton buffer against sign-change in the pre-royalty period.

Each 12-month delay in LOI/MOU execution (T0) defers first Circular Royalty™ by 12 months. At Phase Initial scale, this equates to approximately $21.0M of foregone Year-2 royalty per year of delay. The T0+37mo timeline to first royalty is fixed once T0 is defined — the decision variable is T0 itself. The EU 2035 compliance deadline is unchanged by T0 — a later T0 compresses construction margin, not compliance deadline.

Two binding constraints define the outer bounds of the decision window. Constraint 1 — EU Directive 2018/850: Spain must achieve less than 10% MSW to landfill by 31 December 2035. This is a statutory obligation — not advisory. Constraint 2 — Carbotura deployment timeline: The standard deployment schedule requires T0+24 months (T0 = CSA execution) to Phase Initial COD. Authorising Term Sheet phase verification at T0 = Q3 2033 (absolute latest) delivers Phase Initial COD in Q3 2035 — within the deadline. Recommended: T0 = Q3 2026 for maximum Circular Royalty™ accumulation.

Phase Initial: +367 total jobs (92 direct / 275 indirect) · ~$32M/yr regional economic impact. Source: §5.1. All ESTIMATED — Carbotura standard parameters at 400 TPD.

GHG diversion: designed for ~160,000 tCO₂e/yr avoided. Water recovery: designed for ~480,000 m³/yr. External energy draw: designed for near-zero. PFAS: designed for destruction at 1,200°C+. EU 2035 compliance: Phase Initial delivers structural compliance contribution of 146,000 tpy landfill diversion. Source: §5.2, §5.3.

State B eliminates the structural dependency on landfill capacity at Montemarta-Cónica — a dependency that is incompatible with Spain's 2035 EU compliance obligation. It converts a disposal cost centre into a revenue-positive asset with 30-year cash flow visibility. The Carbotura BOO structure transfers all technology, construction, and operating risk to Carbotura, leaving the City with a simple bilateral obligation: deliver feedstock, receive royalty. The manufacturing classification of the ACM facility positions the City's waste management infrastructure within the industrial economy — not the disposal economy — with the regulatory protections and economic incentives that come with that classification.

Terms supplementary to the Waste Study glossary. Core terms (MCR, ACM, Beneficiation Fee, Circular Royalty™, CSA, BOO, FWDC) defined in waste-study.html Appendix D.