Miami-Dade County
Strategy 32: Residual ConversionCondado de Miami-Dade
Estrategia 32: Conversión Residual
A perpetual Circular Supply Agreement (minimum 30 years from COD) sizes an ACM facility to the residual the County's own Zero Waste Master Plan leaves behind — ≈3,237 TPD at full plan implementation — at a Beneficiation Fee of $88.00/ton, $4.78 below the verified system disposal cost, with zero County capex.
Un Acuerdo de Suministro Circular perpetuo (mínimo 30 años desde el COD) dimensiona una instalación ACM al residual que el propio Plan Maestro de Cero Residuos del Condado deja atrás — ≈3,237 TPD con implementación completa — con una Tarifa TMC de $88.00/tonelada, $4.78 por debajo del costo de disposición verificado, con cero aportación de capital del Condado.
What this document is
The commercial structure of a Circular Supply Agreement sized to the ZWMP's own terminal residual — CSA elections, Beneficiation Fee, Circular Royalty™, site candidates, and 30-year fiscal return.
- Phase Initial (500 TPD) is sized well within near-term disposal volume and remains correctly sized as the ZWMP's 31 strategies phase in over 13 years.
- the CSA delivers a $4.78/ton immediate saving vs. the verified FWDC, then a Circular Royalty™ that exceeds the fee from Year 2 onward — at zero County capital.
- The engagement window is the ZWMP's pre-adoption period — after Board adoption, the residual-conversion layer has to be negotiated separately rather than written into the plan.
Eight Commitments · One EngagementOcho Compromisos · Un Compromiso
Four items are required. One item is subject to Waste Characterization Study. Three optional items signal Public Authority materials offtake under the CMOA.Cuatro elementos son obligatorios. Un elemento está sujeto a Estudio de Caracterización. Tres son opcionales.
What This Means for Miami-Dade CountyQué Significa Esto para el Condado de Miami-Dade
Fee: $100/ton Yr 1 · +2.5%/yr · ~$14.6M/yrTarifa: $100/ton Año 1 · ~$14.6M/año
Circular Royalty™: 120% from Month 13 · ~$17.52M/yr Year 2Canon Circular™: 120% desde Mes 13 · ~$17.52M/año Año 2
$0 Fee · site deed at signing (Miami-Dade Recorder)$0 Tarifa · escritura al firmar (Miami-Dade)
$50/ton from Month 13 · +1%/yr · ~$9.13M/yr Year 2$50/ton desde Mes 13 · ~$9.13M/año Año 2
Landfill deeded at signing (if study confirms)Escritura al firmar (si el estudio confirma)
$50/ton · ~$3.65M/yr from Year 6$50/ton · ~$3.65M/año desde Año 6
Subject to Waste Characterization StudySujeto a Estudio de Caracterización
Why This Proposal — Five ReasonsPor Qué Esta Propuesta — Cinco Razones
- Immediate cost savings — from Day 1.Ahorro inmediato de costos — desde el Día 1. The Beneficiation Fee of $88.00/ton is $4.78 below the verified all-in disposal cost of $92.78/ton. Miami-Dade pays less for the same tonnage from the moment Phase Initial begins operating — before any royalty is received. La Tarifa TMC de $88.00/ton está $4.78 por debajo del costo verificado de $92.78/ton. Miami-Dade paga menos por el mismo tonelaje desde el momento en que la Fase Inicial comienza a operar — antes de recibir ninguna regalía.
- Waste becomes an income-producing instrument.Los residuos se convierten en un instrumento generador de ingresos. From Month 14, the same waste stream that was a pure cost centre generates Circular Royalty™ cash inflows. By Year 30, Miami-Dade receives $34.61M/year in royalty alone on Phase Initial volume. The balance sheet character of the material changes — from open-ended liability to a contractual royalty stream. Desde el Mes 14, el mismo flujo de residuos que era un centro de costos puro genera ingresos de Regalía Circular. En el Año 2, el condado comienza a recibir la Regalía Circular™. En el Año 30, Miami-Dade recibe $34.61M/año solo en regalías sobre el volumen de la Fase Inicial. El carácter del balance del material cambia — de pasivo abierto a un flujo contractual de regalía.
- Zero capital required from the County — ever.Cero capital requerido del Condado — nunca. Carbotura designs, finances, builds, owns, and operates 100% of the ACM infrastructure. The County's only financial obligation is the per-ton Beneficiation Fee. There is no bond issuance, no balance sheet debt, and no capital exposure at any phase from $305M through $3.47B. Carbotura diseña, financia, construye, posee y opera el 100% de la infraestructura ACM. La única obligación financiera del Condado es la Tarifa TMC por tonelada. No hay emisión de bonos, no hay deuda en el balance y no hay exposición de capital en ninguna fase de $305M a $3.47B.
- Fixed cost certainty against a growing out-of-county export dependence.Certeza de costo fijo frente a una creciente dependencia de exportación fuera del condado. Every ton the County currently exports to Okeechobee, JED/St. Cloud, Heart of Florida, or Broward processing carries undisclosed and likely escalating out-of-county rates. The Beneficiation Fee starts at $88.00/ton and escalates at a fixed 2.5%/yr for the life of the CSA — a known, contracted trajectory instead of an open-ended external dependency. Cada tonelada que el Condado exporta actualmente a Okeechobee, JED/St. Cloud, Heart of Florida o al procesamiento de Broward conlleva tarifas no divulgadas y probablemente crecientes. La Tarifa TMC comienza en $88.00/ton y escala a un 2.5%/año fijo durante la vida del CSA.
- This is the floor, not the ceiling.~$990M de beneficio total del condado durante 30 años — a 500 TPD, una fracción del residual terminal de ≈3,237 TPD del propio plan. Este es el piso, no el techo. $28.5M gross cost avoidance plus ~$961M Circular Royalty™ received — two separate, additive revenue lines. Phase Initial is the minimum viable deployment. At full deployment sized to the plan's own terminal residual, the modelled 30-year county benefit scales accordingly — because the royalty model scales linearly with tonnage while zero capex, fixed escalator, and the liability inversion all apply at every scale. None of this requires County capital at any phase. $28.5M de ahorro bruto más ~$961M de Regalía Circular recibida — dos líneas de ingresos separadas y aditivas. La Fase Inicial es el despliegue mínimo viable. En el despliegue completo dimensionado al residual terminal del propio plan, el beneficio del condado a 30 años escala en consecuencia. Nada de esto requiere capital del Condado en ninguna fase.
- The decision window is the ZWMP's public-comment / pre-adoption period — now.La ventana de decisión es el período de comentario público / pre-adopción del PMCR — ahora. Engaging before the Board of County Commissioners formally adopts the Zero Waste Master Plan is how the residual-conversion layer gets written into the plan itself, rather than negotiated separately after adoption. All five reasons above are strongest while that window remains open. Involucrarse antes de que la Junta de Comisionados adopte formalmente el Plan Maestro de Cero Residuos es cómo la capa de conversión residual se incorpora al propio plan, en lugar de negociarse por separado después de la adopción.
- Carbotura proposes a perpetual Circular Supply Agreement (CSA), minimum 30 years from COD:Carbotura propone un Acuerdo de Suministro Circular (CSA) perpetuo, mínimo 30 años desde el COD: Carbotura designs, finances, builds, owns, and operates an Advanced Circular Manufacturing (ACM) facility. Miami-Dade County delivers feedstock and pays a per-ton Beneficiation Fee. Zero County capital commitment. Zero construction debt. Zero operating liability.Carbotura diseña, financia, construye, posee y opera una instalación de Manufactura Circular Avanzada (ACM). El Condado de Miami-Dade entrega materiales y paga una Tarifa TMC por tonelada. Cero compromiso de capital del Condado. Cero deuda de construcción. Cero responsabilidad operativa.
- The County's sole financial obligation is the Beneficiation Fee:La única obligación financiera del Condado es la Tarifa TMC: $88.00/ton — $4.78 per ton below the verified all-in disposal cost of $92.78/ton — delivering an immediate fiscal advantage from Phase Initial COD (Q2 2028).$88.00/tonelada — $4.78 por tonelada por debajo del costo verificado de $92.78/tonelada — generando una ventaja fiscal inmediata desde el COD de la Fase Inicial (T2 2028).
- The County receives a Circular Royalty™ beginning 13 months after the first Beneficiation Fee payment:El Condado recibe una Regalía Circular a partir de los 13 meses posteriores al primer pago de la Tarifa TMC: Carbotura pays the County a cash royalty applying a 120%→150% multiplier (escalating +1 percentage point annually) to the current-year escalated Beneficiation Fee.Carbotura paga al Condado una regalía en efectivo aplicando un multiplicador de 120%→150% (escalando +1 punto porcentual anualmente) a la Tarifa TMC del año en curso ya escalada. En estado estable, la Regalía Circular supera la Tarifa TMC por tonelada.
- Gross cost displacement and Circular Royalty™ cash flow are quantified separately. Year 1 position reflects Beneficiation Fee savings only. Year 2+ reflects Beneficiation Fee savings plus Circular Royalty™ cash receipts.El desplazamiento bruto de costos se cuantifica por separado del flujo de efectivo de la Regalía Circular. La posición fiscal neta completa refleja ambos.
- The decision window is the ZWMP's pre-adoption period:La ventana de decisión es el período de pre-adopción del PMCR: Miami-Dade County's Board of County Commissioners has not yet formally adopted the draft Zero Waste Master Plan. Engaging in this window is how the residual-conversion layer is written into the plan itself.La Junta de Comisionados del Condado de Miami-Dade aún no ha adoptado formalmente el borrador del Plan Maestro de Cero Residuos.
Commercial Structure and Decision Window
Advanced Circular Manufacturing is a manufacturing process, not a waste-management activity. Microwave Catalytic Reforming operates in an anoxic, oxygen-free, sub-atmospheric environment — mechanistically incompatible with combustion or biological degradation. ACM does not fit within the waste domain and does not operate under waste-domain statutes. The Regulatory Predicate Transition (RPT) — also framed as the dewaste pathway — is the coordinated regulatory shift from legacy disposal-predicate statutes onto manufacturing-predicate classifications. 100% elemental recycling of the municipal material stream requires this transition. Manufacturing NAICS 325180 · 325998 · 327992 · 331110 · 331314 · 331492 (6-code ACM set) plus EPA RCRA §1004(27) / 40 CFR §261.2(e) exclusion pathway in the US; ISIC Rev.4 20-25 + UN CPC 89 internationally. In many jurisdictions the required authorities already exist in latent form within existing statutes; in others the transition requires primary-authority amendments. The Joint Working Group phase includes a regulatory engagement workstream to shepherd the RPT alongside site permitting. Both parties commit to the RPT pathway. Carbotura brings the process-classification evidence, regulatory engagement expertise from prior ACM deployments, and the legal-technical framework. The counterparty brings the standing to engage the local regulator, the political mandate for the transition, and — where applicable — legacy statutory authorities that can be re-instrumented for manufacturing use. The endpoint is categorical: manufacturing classification across all permitting, licensing, and regulatory contexts. Interim bridging authorities may apply during the transition.
Regulatory basis: RCRA §1004(27) · 40 CFR §261.2(e) · 40 CFR §260.43 Base regulatoria: RCRA §1004(27) · 40 CFR §261.2(e) · 40 CFR §260.43 · Petición de Exclusión de Residuos Sólidos RCRA ante la EPA (pendiente de presentación, abril de 2026)
§1.1 — Circular Supply Agreement StructureEstructura del Acuerdo de Suministro Circular
| ElementElemento | Miami-Dade County CommitsCompromisos del Condado de Miami-Dade | Carbotura CommitsCompromisos de Carbotura |
|---|---|---|
| CapitalCapital | Zero capital commitmentCero compromiso de capital | 100% capex (Phase Initial: $305M; Full: up to $3.47B) |
| ConstructionConstrucción | Site access; permitting cooperationAcceso al sitio; cooperación en permisos | Design, finance, build — turnkey deliveryDiseño, financiamiento, construcción — entrega llave en mano |
| OperationsOperaciones | Zero operating liabilityCero responsabilidad operativa | Own and operate facility for the CSA term (perpetual, minimum 30 years from COD) |
| Feedstock deliveryEntrega de materiales | Deliver contracted feedstock volume at Beneficiation Fee | Accept all contracted feedstock streams |
| Cost certainty | Beneficiation Fee fixed at $88.00/ton escalating 2.5%/yr | No pass-through of operating cost increases to County |
| Revenue return | Receive Circular Royalty™ from 13 months after first Beneficiation Fee payment | Pay rolling Circular Royalty™ on 13-month lag |
| Term | Perpetual; 30 years from Phase Initial COD is the minimum | BOO; facility returns to County if the CSA term ends |
§1.2 — Decision WindowVentana de Decisión
§1.5 — CSA Structure§1.5 — Marco de Elección CSA
At CSA execution, Miami-Dade County The Exogenesis™ Royalty (Okeechobee Road Landfill, closed) is a structured option for discussion, available as an add-on under the CSA — activation requires Waste Characterization Study and mutual agreement. Terminal residual at full ZWMP implementation: ≈3,237 TPD; Phase Initial standard 500 TPD.
Al ejecutar el CSA, Miami-Dade elige entre y . La Canon Exogenesis™ (Vertedero Okeechobee, cerrado) es una opción estructurada para discusión, disponible como bono en cualquiera de las dos elecciones. Residual terminal con implementación completa del PMCR: ≈3,237 TPD; Fase Inicial estándar 500 TPD.
The Okeechobee Road Landfill (former Class I MSW, closed) is Miami-Dade's primary legacy mining candidate. Its closed status eliminates active waste intake complexity. Activation requires Waste Characterization Study. If elected: all post-closure obligations transfer to Carbotura (GASB 49).
El Vertedero Okeechobee (ex Clase I, cerrado) es el candidato principal para minería legado en Miami-Dade. Su estado cerrado elimina complejidades operativas. Activación requiere Estudio de Caracterización.
Deployment Architecture
§2.1 — Phase ConfigurationConfiguración de Fases
| PhaseFase | TPD | ModulesMódulos | Annual Feedstock (TPY)Materiales Anuales (TPY) | % of IMMEDIATE% del INMEDIATO | CapExCapEx | COD / Full OpsCOD / Ops Completas |
|---|---|---|---|---|---|---|
| Phase InitialFase Inicial | 500 | 5 | 182,500 | 12% | $305M | Q2 2028 |
| Milestone 1,000 TPD | 1,000 | 10 | 365,000 | 24% | $592.5M | Q4 2028 |
| Phase MediumFase Media | 2,000 | 20 | 730,000 | 49% | $1,167.5M | Q4 2029 |
| Milestone 4,000 TPD | 4,000 | 40 | 1,460,000 | 97% | $2,317.5M | Q4 2030 |
| Phase ExpandedFase Expandida | 6,000 | 60 | 2,190,000 | 146% (regional draw) | $3,467.5M | Q2 2031 |
Chart — Phase Deployment Scale | Source: Carbotura standard CapEx parameters; Carbotura standard deployment schedule, T0 = Q2 2026
§2.2 — BOO Capital StructureEstructura de Capital BOO
§2.3 — Feedstock Stream Coverage by PhaseCobertura de Flujos de Materiales por Fase
| StreamFlujo | Phase InitialFase Inicial | Phase MediumFase Media | Phase ExpandedFase Expandida | Access StatusEstado de Acceso |
|---|---|---|---|---|
| MSW / Refuse-Derived Waste | ✅ Primary | ✅ Core | ✅ Core | IMMEDIATE |
| Construction & Demolition Debris | ✅ Added | ✅ Full | CONDITIONAL | |
| Recyclables (contaminated / rejected) | ✅ Added | ✅ Full | CONDITIONAL | |
| Yard Waste / Green Waste | ✅ Added | ✅ Full | CONDITIONAL | |
| Biosolids (wet) — WASD | ✅ Added | ✅ Full | CONDITIONAL | |
| Organics / Food Scraps — Commercial | ✅ Added | ACCESSIBLE | ||
| Special Waste / HHW | ✅ Added | ACCESSIBLE |
§2.4 — Site Candidate Analysis
Site Candidate Summary Table
| PriorityPrioridad | ZoneZona | TypeTipo | AcreageSuperficie | ZoningZonificación | Co-location AdvantageVentaja de Co-ubicación | Key ConsiderationConsideración Clave |
|---|---|---|---|---|---|---|
| P1 | West Dade Industrial Corridor | In-County | 50–80 ac | IU-1 | Near County Sustainable Solid Waste Campus siting discussion; I-75/SR-836 access; near West + Central TSs | Shared siting-discussion area with the County's own campus planning — coordination required |
| P2 | South Dade Industrial Zone | In-County | 40–60 ac | GU | Direct South Dade Landfill co-location; South District WWTP 2 miles; dual-stream convergence | Distance from North/Central transfer stations (~22+ miles) |
| P3 | South Bay / Belle Glade, PBC | Rail-Connected | 100+ ac | IL | CSX direct; low land cost; 100+ acres; large Phase Expanded build footprint | Rail transfer station construction required; outside county jurisdiction |
§2.5 — Phase Initial Feedstock Sufficiency
Economic Structure — Beneficiation Fee (TMC Fee)
§3.1 — FWDC Planning Basis
Derivation: $76.12/ton (contract disposal rate) + $16.66/ton (Regional Transfer Station transfer fee) = $92.78/ton all-in contracted cost. Source: miamidade.gov/resources/solid-waste/documents/disposal-facility-fees.pdf · October 1, 2025.
§3.2 — Beneficiation Fee Formula
| PhaseFase | TPD | Annual Volume (TPY)Volumen Anual (TPY) | Beneficiation Fee Year 1Tarifa TMC Año 1 | Annual Obligation Year 1Obligación Anual Año 1 | FWDC ComparisonComparación con CFRD | Year 1 Gross SavingsAhorro Bruto Año 1 |
|---|---|---|---|---|---|---|
| Phase InitialFase Inicial | 500 | 182,500 | $88.00/ton | $16,060,000 | $92.78/ton → $16,932,350 | $872,350/yr |
| Phase MediumFase Media | 2,000 | 730,000 | $88.00/ton | $64,240,000 | $92.78/ton → $67,729,400 | $3,489,400/yr |
| Phase ExpandedFase Expandida | 6,000 | 2,190,000 | $88.00/ton | $192,720,000 | $92.78/ton → $203,188,200 | $10,468,200/yr |
Circular Royalty™
Standard CSA: Miami-Dade County pays Beneficiation Fee; Carbotura pays Circular Royalty™ (120%→150% multiplier, +1pp/yr, applied to the current-year escalated Beneficiation Fee) beginning 13 months after the first Beneficiation Fee payment. Phase Initial 500 TPD of the ≈3,237 TPD terminal residual. Separate transactions, never netted.
Elección estándar: Miami-Dade paga Tarifa TMC; Carbotura paga Canon Circular™ (multiplicador 120%→150%, +1pp/año) desde 13 meses después del primer pago de la Tarifa TMC. Fase Inicial 500 TPD del residual terminal de ≈3,237 TPD. Transacciones separadas.
§4.0.1 — Contractual Definition and Formula
§4.0.2 — Parameter Table
| ParameterParámetro | ValueValor | BasisBase |
|---|---|---|
| Royalty base rate (Year 1) | 120% of the current-year Beneficiation Fee | Carbotura standard parameters |
| Beneficiation Fee Year 1Tarifa TMC Año 1 | $88.00/ton | VERIFIED FWDC-anchored |
| Royalty Year 2 rate | 120% × $88.00 = $105.60/ton | Derived |
| Beneficiation Fee escalatorEscaladora de Tarifa TMC | 2.5%/year | Carbotura standard parameters |
| Royalty rate escalator | +1 percentage point/year (120% → 121% → 122% …) | Carbotura standard parameters |
| Payment lag | 13 months after corresponding Beneficiation Fee payment | Carbotura standard — contractually fixed |
| Royalty structure type | Rolling lagged cash flow (monthly) | Carbotura standard parameters |
| CSA termPlazo del CSA | Perpetual; 30 years from Phase Initial COD is the minimum | Carbotura standard parameters |
§4.0.3 — Fiscal Period Distinction (Mandatory)
| PeriodPeríodo | TimingCronología | County Fiscal PositionPosición Fiscal del Condado | Beneficiation Fee ($/ton)Tarifa TMC ($/ton) | Circular Royalty™ ($/ton)Regalía Circular™ ($/ton) |
|---|---|---|---|---|
| Pre-Royalty Period | Months 1–13 after first delivery (Q2 2028 – Q3 2029) | County pays Beneficiation Fee; receives $0 royalty | $88.00/ton ($16.06M/yr) — vs. $92.78/ton FWDC | $0.00/ton ($0) |
| Royalty Ramp Begins | Month 14 (first royalty payment Q3 2029 onwards) | County pays Beneficiation Fee; receives rolling royalty payments — reported as two separate transactions | $90.20/ton ($16.46M/yr) | $105.60/ton ($19.27M/yr) |
| Steady State Year 5 | Year 5 (2033) | Royalty exceeds Beneficiation Fee on a per-ton basis | $98.00/ton ($17.89M/yr) | $116.72/ton ($21.30M/yr) |
| Steady State Year 10 | Year 10 (2038) | Spread between the two streams widens | $111.17/ton ($20.29M/yr) | $136.40/ton ($24.89M/yr) |
| Steady State Year 30 | Year 30 (2058) | Terminal year of the 30-year minimum term | $157.54/ton ($28.75M/yr) | $189.65/ton ($34.61M/yr) |
§4.0.4 — Year-by-Year Cash Flow Table (Phase Initial — 500 TPD)
| YearAño | Avoided Disposal/tonCosto Evitado/ton | TMC Rate ($/ton)Tarifa TMC ($/ton) | Annual TMC ($M) | Royalty RateTasa de Regalía | Royalty/tonRegalía/ton | Annual Royalty ($M) |
|---|---|---|---|---|---|---|
| 1 | $88.00 | $16.06 | Pre-royalty | $0.00 | $0.00 | |
| Pre-royalty months 1–13 | No royalty payment received — lag period (13 months) | |||||
| 2 (Month 14+) | $90.20 | $16.46 | 120% | $105.60 | $19.27 | |
| 5 | $98.00 | $17.89 | 123% | $116.72 | $21.30 | |
| 10 | $111.17 | $20.29 | 128% | $136.40 | $24.89 | |
| 20 | $139.94 | $25.54 | 138% | $168.73 | $30.79 | |
| 30 | $157.54 | $28.75 | 148% | $189.65 | $34.61 | |
Royalty figures are amounts received. The royalty is paid 13 months in arrears, so the figure shown for a year is earned on the previous year’s delivered tonnage.Las cifras de regalías son importes recibidos. La regalía se paga con 13 meses de diferimiento, por lo que la cifra mostrada para un año se genera sobre el tonelaje entregado el año anterior.
§4.0.5 — Fiscal Position — Three Gross Items, Years 1–20Posición Fiscal — Tres Elementos Brutos, Años 1–20
Three independent datasets — nothing pre-netted. Avoided disposal cost (what the County saves vs. FWDC) is positive every year. Beneficiation Fee paid is negative every year. Circular Royalty™ received is zero in Year 1 (13-month lag) then positive from Year 2 onward.Tres conjuntos de datos independientes — nada pre-neteado. El costo de disposición evitado es positivo cada año. La Tarifa TMC pagada es negativa cada año. La Regalía Circular es cero en el Año 1 y positiva desde el Año 2 en adelante.
Three Contractual Positions on Circular Royalty™ — Required DisclosuresTres Disposiciones Contractuales sobre la Regalía Circular — Divulgaciones Requeridas
- "Gross cost displacement and Circular Royalty™ cash flow are quantified separately."El desplazamiento bruto de costos se cuantifica por separado del flujo de efectivo de la Regalía Circular. La posición fiscal neta completa refleja ambos."
- "At steady state, the Circular Royalty™ is designed to exceed the Beneficiation Fee on a per-ton basis.""En estado estable, la Regalía Circular está diseñada para superar la Tarifa TMC por tonelada."
- "Circular Royalty™ payments begin 13 months after corresponding Beneficiation Fee payments and ramp to full run-rate on a rolling basis.""Los pagos de la Regalía Circular comienzan 13 meses después de los pagos correspondientes de la Tarifa TMC y aumentan gradualmente hasta la tasa completa de manera continua."
§4.1 — Exogenesis™ Royalty add-on (Subject to Waste Characterization Study)§4.1 — Canon Exogenesis™ (Sujeto a Estudio de Caracterización)
Exogenesis™ becomes a CSA element — a bonus available on the CSA — only after Waste Characterization Study and mutual agreement. The Okeechobee Road Landfill (closed Class I) is Miami-Dade's primary legacy mining candidate — its closed status makes it well-suited for study.
Exogenesis™ se convierte en elemento CSA — un bono disponible como complemento de la CSA — solo tras Estudio de Caracterización y acuerdo mutuo. El Vertedero Okeechobee (Clase I cerrado) es el candidato principal para estudio.
| YearAño | Rate $/ton | Annual (~73,000 tpy indicative)Anual (~73,000 tpy indicativo) |
|---|---|---|
| 1–5 | $0 | |
| 6 | $50.00 | +$3,650,000 |
| 10 | $52.02 | +$3,797,460 |
| 30 | $63.49 | +$4,634,770 |
| 30-yr indicative (if elected)30 años indicativo (si elegida) | ~$103M | |
All values INDICATIVE. Subject to Waste Characterization Study. Stacks on the CSA — never netted (MR §4.8).Todos los valores INDICATIVOS. Sujetos a Estudio. Acumulados sobre la CSA — nunca compensados.
Risk Register
| RiskRiesgo | Key Driver | Who Bears It | MitigationMitigación | Residual Exposure |
|---|---|---|---|---|
| FWDC verification | Contracted rate may change at 2025 renewal | County / shared | FWDC VERIFIED at $92.78/ton Oct 2025; Beneficiation Fee formula re-anchors at Joint Working Group phase | Low — fee schedule published publicly |
| Technology performance | ACM output recovery rate below projections | Carbotura | BOO structure — Carbotura bears all operating risk; County pays fixed Beneficiation Fee regardless | None to County |
| Timeline slippage | Permitting or site delays beyond T0+24 months | Carbotura / shared | Carbotura standard schedule includes 6-month pre-construction buffer; COD milestone contractually guaranteed | Low — County has no capital at risk |
| ZWMP adoption without residual layer | BCC adopts the plan before the residual-conversion layer is included | County | Authorize Joint Working Group phase during the plan's public-comment / pre-adoption window | HIGH if no action — the 13-point gap goes unaddressed in the official plan |
| Diversion execution variance | ZWMP strategies under- or over-perform relative to the 77% modeled diversion | Shared | Phase Initial sized well within near-term disposal volume; Phase Expanded sized to the plan's own terminal residual regardless of execution variance | Low for Phase Initial; Medium for Phase Expanded sizing |
| Competitive procurement | BCC selects a competing disposal or conversion technology for the residual | County | ACM engagement during the plan's pre-adoption window; Joint Working Group phase establishes comparator analysis | Medium — time-sensitive to plan adoption |
| Residual stream / ash | ACM residual fraction requires disposal | Carbotura | BOO structure — all residual disposal is Carbotura's operational responsibility | None to County |
| PFAS regulatory | Evolving FDEP / EPA PFAS rules affect biosolids and leachate | Carbotura / shared | ACM process handles PFAS-bearing streams; Carbotura bears regulatory compliance cost | Low for Phase Initial (MSW only) |
Deployment Timeline
| MilestoneHito | Target DateFecha Objetivo | NotesNotas |
|---|---|---|
| ⚠ ZWMP Board adoption (decision window) | Public-comment / pre-adoption, draft dated Jul 2026 | Engagement before Board adoption is how the residual-conversion layer is written into the plan itself. |
| Joint Working Group phase — authorize | During the pre-adoption window | Precedes formal ZWMP adoption to include the residual-conversion layer |
| Joint Working Group phase — complete | T0 + 3 months | T0 = Q2 2026 (Carbotura standard schedule) |
| Phase Initial construction start | T0 + 6 months (Q4 2026) | Site P1 preferred — no rail transfer station required |
| Phase Initial CODCOD Fase Inicial | T0 + 24 months (Q2 2028) | 500 TPD operational — MSW stream only |
| First Circular Royalty™ paymentPrimer pago de Regalía Circular | T0 + 37 months (Q3 2029) | 13 months after Phase Initial COD · Rolling lagged cash flow begins |
| Phase Medium full operations | T0 + 42 months (Q4 2029) | 2,000 TPD — conditional streams integrated |
| Phase Expanded full operations | T0 + 60 months (Q2 2031) | Sized to the ZWMP's own ≈3,237 TPD terminal residual |
| CSA minimum term end / facility transfer if term ends | T0 + 30 years (Q2 2058) | CSA is perpetual; 30 years is the contractual minimum. All ACM assets transfer to Miami-Dade County if the term ends. |
County Fiscal Return — Full PictureRetorno Fiscal del Condado — Panorama Completo
① Gross Cost Avoidance — The County pays $88.00/ton instead of $92.78/ton. Active from COD (Q2 2028). Locked in regardless of royalty performance.
② Circular Royalty™ Received — Carbotura pays the County a cash royalty beginning Month 14 (Q3 2029), growing every year. At Year 30 the royalty rate reaches 148% of the Beneficiation Fee — the County receives more than it pays. ① Ahorro Bruto de Costos — El Condado paga $88.00/ton en lugar de $92.78/ton. Activo desde el COD (T2 2028). Garantizado independientemente del desempeño de la regalía.
② Regalía Circular Recibida — Carbotura paga al Condado una regalía en efectivo a partir del Mes 14 (T3 2029), creciendo cada año. En el Año 30 la tasa de regalía alcanza el 148% de la Tarifa TMC — el Condado recibe más de lo que paga.
§7.1 — Complete County Fiscal Return (Phase Initial — 500 TPD, 182,500 TPY)§7.1 — Retorno Fiscal Completo del Condado (Fase Inicial — 500 TPD, 182,500 TPY)
| YearAño | State A Cost (FWDC)Costo Estado A (CFRD) | Beneficiation Fee PaidTarifa TMC Pagada | ① Gross Cost Avoidance① Ahorro Bruto de Costos | ② Royalty Received② Regalía Recibida | Cumulative BenefitBeneficio Acumulado |
|---|---|---|---|---|---|
| Year 1Año 1 Pre-royaltyPre-regalía |
$16.93M | $16.06M | +$0.87M | $0.00 (13-month lag) | +$0.87M |
| Year 2Año 2 Royalty beginsComienza regalía |
$17.35M | $16.46M | +$0.89M | +$19.27M | +$21.03M |
| Year 5Año 5 | $18.68M | $17.89M | +$0.79M | +$21.30M | ~$84M |
| Year 10Año 10 | $21.10M | $20.29M | +$0.81M | +$24.89M | ~$225M |
| Year 20Año 20 | $26.57M | $25.54M | +$1.03M | +$30.79M | ~$544M |
| Year 30Año 30 | $29.90M | $28.75M | +$1.15M | +$34.61M | ~$990M |
§7.2 — Beneficio Total del Condado a 30 Años por Fase
| PhaseFase | TPD | 30-yr Gross Cost Avoidance ①Ahorro Bruto 30 años ① | 30-yr Royalty Received ②Regalía Recibida 30 años ② | County CapEx AvoidedCapEx del Condado Evitado |
|---|---|---|---|---|
| Phase InitialFase InicialFase Inicial | 500 | ~$28.5M | ~$961M | $305M avoidedevitado |
| Phase MediumFase MediaFase Media | 2,000 | ~$114M | ~$3.85B | $1.17B avoidedevitado |
| Phase ExpandedFase ExpandidaFase Expandida | 6,000 | ~$342M | ~$11.54B | $3.47B avoidedevitado |
§7.3 — County Balance Sheet Impact: State A vs. State B§7.3 — Impacto en el Balance del Condado: Estado A vs. Estado B
| Balance Sheet ItemElemento del Balance | State A — No ACMEstado A — Sin ACM | State B — With ACM CSAEstado B — Con CSA ACM | ImpactImpacto |
|---|---|---|---|
| Annual disposal cost (Year 1, 500 TPD)Costo anual de disposición (Año 1, 500 TPD) | $16.93M/yr (FWDC $92.78/ton) | $16.06M/yr (TMC $88.00/ton) | −$0.87M/yr lower from Day 1menor desde el Día 1 |
| Capital expenditure requiredGasto de capital requerido | $556M+ (new County landfill) or $1.5B–$1.9B (new WTE facility)$556M+ (nuevo relleno del condado) o $1.5B–$1.9B (nueva instalación WTE) | $0 | Full CapEx avoidedCapEx total evitado |
| New revenue to CountyNuevos ingresos para el Condado | $0 | $19.27M/yr from Year 2 (Phase Initial)desde Año 2 (Fase Inicial) | +$19.27M/yr new cash flownuevo flujo de efectivo |
| Per-ton cost trajectory (Year 30)Trayectoria de costo por tonelada (Año 30) | Undisclosed out-of-county export rates, likely escalating (Okeechobee / JED-St. Cloud / Heart of Florida / Broward)Tarifas de exportación fuera del condado no divulgadas, probablemente crecientes DATA GAP | $157.54/ton (TMC $88/ton +2.5%/yr × 30yr) | Known, fixed trajectory vs. an undisclosed export costTrayectoria fija y conocida frente a un costo de exportación no divulgado |
| Balance sheet character of waste obligationCarácter en el balance de la obligación de residuos | Pure long-term liability — open-ended disposal cost, escalating every year, no revenue offset, no income returnPasivo puro a largo plazo — costo de disposición abierto, escalando cada año, sin compensación de ingresos ni retorno | Income-producing instrument — the same waste stream generates Circular Royalty™ cash inflows from Month 14.Instrumento generador de ingresos — el mismo flujo de residuos genera ingresos de Regalía Circular desde el Mes 14. La Regalía Circular™ se recibe desde el Año 2, de forma independiente de la Tarifa. | Liability replaced by a Circular Royalty™ streamPasivo sustituido por un flujo de Regalía Circular™ |
| Residual environmental liabilityResponsabilidad ambiental residual | Landfill leachate, PFAS, odour — County liability ongoingLixiviados de relleno, PFAS, olores — responsabilidad del Condado en curso | All residual handling by Carbotura under BOO — zero County liabilityTodo manejo residual por Carbotura bajo BOO — cero responsabilidad del Condado | Full liability transferTransferencia total de responsabilidad |
§7.4 — Regional Economic Effects (Distinct from Fiscal)§7.4 — Efectos Económicos Regionales (Distintos del Fiscal)
| EffectEfecto | Phase InitialFase InicialFase Inicial | Phase ExpandedFase ExpandidaFase Expandida | StatusEstado |
|---|---|---|---|
| Direct FTE employmentEmpleo FTE directo | ~175 jobsempleos | ~1,750 jobsempleos | ESTIMATED |
| Indirect / induced jobsEmpleos indirectos / inducidos | ~280 | ~2,800 | ESTIMATED |
| Annual economic impactImpacto económico anual | ~$140M/yr | ~$1.6B/yr | ESTIMATED |
| Carbon avoidedCarbono evitado | ~315,000 tCO₂e/yr | ~3,780,000 tCO₂e/yr | ESTIMATED |
Why This Works in Miami-Dade County
- Volume alignment:Alineación de volumen: Even after the County's own Zero Waste Master Plan reaches full implementation (77% diversion), an estimated ≈3,237 TPD terminal residual remains — 6.5× Phase Initial capacity, and near-term disposal volume (≈9,015 TPD) is 18× Phase Initial capacity. This volume supports all deployment phases without regional feedstock aggregation.
- Infrastructure alignment:Alineación de infraestructura: Three Regional Transfer Stations (combined capacity 3,700 TPD) are already operational and positioned for Phase Initial feedstock consolidation. Site P1 (West Dade Industrial Corridor) is within 8 miles of the West Transfer Station — the largest of the three. Site P3 (South Bay / Belle Glade) connects to the same feedstock network via CSX rail.
- Timing alignment:Alineación de momento: The draft Zero Waste Master Plan is in its public-comment / pre-adoption window — the narrowest and most valuable engagement window, since it is the only point at which the residual-conversion layer can be written into the plan itself rather than negotiated separately afterward.
- Policy alignment:Alineación de políticas: The Zero Waste Master Plan's own 31 strategies and 90%-by-2040 mayoral commitment are structurally compatible with — and require — a residual-conversion layer. ACM does not compete with any of the 31 strategies; it addresses precisely the volume they do not reach. The concurrency requirement (must demonstrate disposal capacity before issuing development permits) creates a formal policy driver for long-term residual disposal capacity commitments.
- Organic mandate / regulatory driver:Mandato orgánico / impulsor regulatorio: The ZWMP's own organics Alternative Scenario (anaerobic digestion + tunnel composting) was justified partly on +2,300 person-years of employment and +$670M regional output — the same category of economic argument this Proposal and the companion EIR extend to the residual-conversion layer.
- Economics specificity:Especificidad económica: The Beneficiation Fee of $88.00/ton is anchored to the verified Miami-Dade DSWM contract disposal rate of $76.12/ton + $16.66/ton transfer fee = $92.78/ton FWDC, sourced directly from the official DSWM Disposal Facility Fee Schedule (October 1, 2025). The $4.78/ton immediate per-ton advantage is not a modeled estimate — it derives from a verified published government fee schedule.
Executive Implications — ProposalImplicaciones Ejecutivas — Propuesta
- The County receives ~$990M in total benefit from Phase Initial — 500 TPD, 7% of addressable volume — over 30 years: ~$28.5M gross cost avoidance + ~$961M Circular Royalty™. This is the floor. At full deployment the 30-year county benefit is ~$11.88B. Two separate, additive lines — the royalty dominates, but the cost avoidance is real, begins at COD, and requires no royalty to materialise.
- El Condado recibe ~$990M en beneficio total de la Fase Inicial — 500 TPD, 7% del volumen disponible — durante 30 años: ~$28.5M ahorro bruto + ~$961M Regalía Circular. Este es el piso. En el despliegue completo el beneficio del condado a 30 años es ~$11.88B. Dos líneas separadas y aditivas — la regalía domina, pero el ahorro de costos es real, comienza en el COD y no requiere que la regalía se materialice.
- From Year 2 the County receives both streams simultaneously. Year 2 total: $0.89M avoidance + $19.27M royalty = $20.16M. This grows to $35.76M/year by Year 30. Across all three phases at full deployment, estimated 30-year County benefit is ~$11.88B.
- Desde el Año 2 el Condado recibe ambas corrientes simultáneamente. Año 2 total: $0.89M ahorro + $19.27M regalía = $20.16M. Esto crece a $35.76M/año en el Año 30. En las tres fases a pleno despliegue, beneficio estimado del condado a 30 años: ~$11.88B.
- Zero county capex across all phases — and the balance sheet character of waste inverts. The County's $305M–$3.47B capital obligation in State A disappears entirely. More fundamentally, the waste stream itself transforms: what was a pure long-term liability generating only costs becomes an income-producing instrument.
- Cero capex del condado en todas las fases — y el carácter del balance de los residuos se invierte. La obligación de capital del Condado de $305M–$3.47B desaparece completamente. Más fundamentalmente, el flujo de residuos se transforma: lo que era un pasivo puro generador solo de costos se convierte en un instrumento generador de ingresos. Desde el Año 2, el mismo tonelaje que antes era un centro de costos genera flujo de efectivo neto positivo al Condado.
- The ZWMP pre-adoption window is the decision point. Engaging before the Board formally adopts the plan is the only way the residual-conversion layer gets written into the plan itself, rather than negotiated separately afterward — and is the only action that captures ~$990M+ in Phase Initial benefit before that window closes.
- La ventana de pre-adopción del PMCR es el punto de decisión. Involucrarse antes de que la Junta adopte formalmente el plan es la única forma de incorporar la capa de conversión residual al propio plan.
Appendix A — Data Basis
Public Data Sources — All Labels Externally Readable
- DSWM Disposal Facility Fee Schedule (Oct 1, 2025) · miamidade.gov/resources/solid-waste/documents/disposal-facility-fees.pdf · FWDC derivation ($76.12 + $16.66 = $92.78/ton) · Current
- Miami-Dade County draft Zero Waste Master Plan (July 2026) · WSP USA, Kessler Consulting, Abbe & Associates, Catalyst Miami · 36%→77% diversion trajectory; ≈3,237 TPD terminal residual; North Dade full 2030 / South Dade full 2032 · Current
- ZWMP Appendix E · Sustainable Solid Waste Campus siting discussion (West Dade Nurseries parcel); BET-PRD 1000 pyrolysis pilot; organics Alternative Scenario economic case · Current
- Carbotura standard parameters — CapEx: $75M first 100 TPD module + $57.5M each additional. Royalty: 120%→150% multiplier +1pp/yr on current-year Beneficiation Fee. TMC escalator: 2.5%/yr. CSA: perpetual, 30-year minimum. Lag: 13 months. Deployment schedule: T0 to COD 24 months.