THE NEW FRAMEWORK  MUC (Layered Universalization Model) - MUC

Why the 2033 Target Requires Sequencing, Not Just Planning

Brazil has one of the most ambitious infrastructure agendas in the world: universalizing sanitation by 2033.

However, the current model shows critical misalignments: capital-intensive CAPEX concentrated in the short term; high tariffs before the service is perceived; low user adherence (delinquency and resistance); pressure on operators and lenders.

Verdius's thesis: Universalization should not be scaled back — it should be reprogrammed into a more efficient execution curve, with early delivery of environmental and social impact and progressive monetization.

THE STRUCTURAL PROBLEM 

Current model (linear): Network → Investment → Tariff → Perception Problem: perception comes last; billing comes first Result: delinquency; litigation; regulatory risk; higher cost of capital

THE NEW FRAMEWORK — MUC (Layered Universalization Model)

The Layered Universalization Model (MUC) is a conceptual framework developed for the Brazilian context, combining principles of project finance, results-based regulation and international sanitation strategies, structuring universalization into sequential phases of impact, expansion and consolidation.

Based on a combination of: international sanitation best practices; practical concession experience; project finance logic; risk management and user-adoption principles.

Investment sequencing (Project Finance) — Conceptual basis: phased CAPEX, risk reduction over time, alignment between investment and cash generation. Origin: classic project finance structures; infrastructure financing (energy, transport, sanitation).

"Service-first" vs. "infrastructure-first" — Core idea: deliver service before the infrastructure is fully complete. Comes from: World Bank, Inter-American Development Bank. Applications: urban sanitation in Asia; sewage programs in Latin America.

Reducing pollution load before universalization — Technical basis: intercept pollution before building out the full network. Common practice in: India (Ganges programs), Mexico (urban basins), Colombia (hybrid systems).

"Willingness to Pay" (behavioral economics) — Principle: users pay when they perceive value. Origin: World Bank studies; public services economics.

Outcome-based regulation — KPI shift: from infrastructure → to outcomes. Basis: modern regulation models (OECD / multilaterals).

FRAMEWORK — MUC: Universalization sequencing with integrated financial + social logic

Layer 1 — Immediate impact (0–3 years): dry-weather flow; interceptors; decentralized solutions; modular treatment plants (ETEs). Goal: rapidly reduce pollution load. Layer 2 — Structured expansion (3–7 years): conventional network; system consolidation. Layer 3 — Full universalization (7–12 years): full coverage; optimized operation.

KPI SHIFT (ESSENTIAL): From % of network installed → to pollution load removed (BOD) + population effectively served + environmental quality.

PROGRESSIVE ECONOMIC MODEL: Phase 1 – 30–50% – Outcome (adherence + immediate impact); Phase 2 – 50–70% – Outcome (expansion); Phase 3 – 80–100% – Outcome (maturity).

BENEFITS: Social — less resistance, greater adherence, immediate benefit. Environmental — rapid pollution reduction. Financial — lower delinquency, better credit profile.

INTERNATIONAL CASES (REFERENCE): Colombia — decentralized solutions + gradual tariffs; India — sewage interception before full network build-out; Mexico — focus on reducing pollution load in critical basins.

CONCLUSION: "It's not about investing less — it's about investing in the right order."

COMPARATIVE FINANCIAL MODEL — Assumptions (realistic sector baseline): Total CAPEX R$5 billion; Term 10 years; WACC 11.79%; Potential average revenue R$1,200/connection/year.

SCENARIO 1 — CURRENT (LINEAR) MODEL: accelerated CAPEX, high tariff from the start. Result: Delinquency 18–25%; Perceived WACC 12.5–13.5%; IRR 11–13%; Payback 10–12 years.

SCENARIO 2 — VERDIUS MODEL (PROGRESSIVE – MUC): phased CAPEX, rising tariff, immediate impact. Result: Delinquency 8–12%; Perceived WACC 10–11%; IRR 13–16%; Payback 7–9 years.

KEY INSIGHT: Reducing delinquency is worth more than accelerating the tariff.

REAL PILOT — BAIXADA FLUMINENSE Region: Baixada Fluminense. Estimated population: ~4 million.

PROBLEM: low effective sewage coverage; high pollution load; tariff resistance; dense, complex areas.

PROPOSED SOLUTION Phase 1 (0–3 years): interceptors on critical rivers, dry-weather flow systems, modular treatment plants (ETEs). CAPEX ~R$1.2 billion. Impact: 40–60% reduction in pollution load. Phase 2 (3–7 years): structured network expansion. CAPEX ~R$2.0 billion. Phase 3 (7–12 years): full universalization. CAPEX ~R$1.8 billion.

EXPECTED RESULT: Immediately impacted population 2–3 million; pollution reduction (5 years) 60–70%; increase in adherence +30%; reduction in delinquency -40%.

TIMELINE: Years 1–2 (immediate environmental impact); Years 3–5 (relevant expansion); Years 6–10 (consolidated universalization).

MACRO IMPACT: improvement in waterborne disease rates; real estate appreciation; higher HDI; environmental recovery.

FINAL CONCLUSION: The current model maximizes CAPEX in the short term. The proposed model maximizes impact, adherence and sustainability.

About the Author

Luiz Fernando Fabbriani has more than four decades of experience in infrastructure, with leadership roles spanning engineering, water and wastewater utilities, energy, and investment structuring.

In recent years, his work has focused on the intersection of CAPEX governance, operational execution, and value creation, advising executives, investors, and Boards of Directors on how to transform infrastructure investments into sustainable long-term performance.