Independent research on renewable curtailment, transmission and the future of Brazil's SIN. Public data, analytical rigor, full transparency.
Live curtailment counter + environmental impact (CO₂, trees, households).
Navigable dashboard: Brazil, subsystem, state, cluster, plant. 60M+ records.
687 grid connection points with remaining capacity, constraints and ONS transmission margin.
17 articles, 450+ discoveries, 91 hypotheses tested. You are here.
Granular data analyses revealing what aggregated reports hide

11 lines at 500 kV, 26 GW nominal, R$ 1.77 billion/year in invisible congestion

NEWAVE-DECOMP-DESSEM-PDP: zero curtailment modeled across the entire chain. 87% is a surprise.

P10 jumped 27x. 41% of days with curtailment across all 24 hours. It's no longer a peak phenomenon.

The ONS temporal heuristic that determines whether your curtailment will be compensated. R$ 3.8-4.1B at stake.

A single piece of equipment offline since Oct/2025 causes 471 GWh in the NE. 4,162 GWh from one substation.

NE saturating, BA accelerating, MG emerging. 11 states, 3 incompatible dynamics.
Findings with direct commercial, regulatory or technical implications
NEWAVE-DECOMP-DESSEM schedule ZERO. 87% of curtailment is managed manually in real time.
Hidden annual cost of the NE→SE bottleneck. CMO spread between subsystems × curtailed energy.
Daily curtailment minimum jumped 27x in 1 year. Present 99% of hours. Became baseload.
No longer just a NE problem. MG solar +469%, SP emerging. 3 distinct geographic fronts.
Curtailment deconcentrated. Top 5 clusters: from 17% to 10%. Became a systemic problem.
Optimizing battery by value (CMO) yields 2.4x more revenue than by volume (curtailed MWh).
150 Mvar compensator in MG causes 471 GWh of curtailment 2,000 km away. R$ 115M in 116 days.
Base scenario with logistic saturation. +49% over 2025. MG solar: biggest mover (+81%).
Granular data by plant, cluster, state and subsystem. SHA-256 verifiable certificates.