ANEEL’s GGT system today monitors 102 transmission lines across every region of Brazil — 43,000 kilometers and over 86,000 spans — cross-checking satellite imagery monthly against what utilities themselves report.

The comparison runs on the regulator’s system, not the utility’s, which reverses a relationship traditional enforcement always assumed: since the Geospatialized Transmission Management (GGT) system began operating, discrepancies between what was reported and what was observed have already resulted in penalties applied, not from a complaint or field visit, but from satellite data the regulator processes automatically before any interaction with the utility.

That shift carries more weight alongside another data point. In 2024, INPE recorded 278,299 active heat hotspots, the highest number in 14 years, and grid operator ONS logged 931 transmission-line shutdowns caused by wildfires. The requirement to complete vegetation inspection near rights-of-way by May 31, and clearing by July 31, stops being just a contractual deadline and becomes the window within which the utility needs to produce verifiable evidence, because whatever isn’t proven within that window is already, in some form, documented on the other side, in the regulator’s system.

Right-of-way management, seen from this angle, isn’t an inspection-coverage problem. It’s an evidence-chain problem.

What ANEEL requires as proof of management

The right-of-way is the area adjacent to the infrastructure where land use is restricted to ensure operational safety and maintenance access. For transmission lines, its width varies with voltage, defined by NBR 5422, and can reach tens of meters on each side of the structure. The land still belongs to the rural or urban owner, but responsibility for the right-of-way’s integrity falls to the utility — a combination that creates a structural asymmetry: control over land use doesn’t rest solely with the company, even though the company answers for any irregularity within its perimeter, whether it’s vegetation beyond the limit, construction started in the restricted area, earthmoving near the structure, or storage of flammable material.

The common thread among these events is that all of them are detectable by satellite, and ANEEL tends to have the data before the transmission company’s field team reaches the stretch. The October 2025 regulation formalized this logic by consolidating the requirement to submit vegetation management plans to ANEEL and ONS, with annual updates and a record of actions taken. What the regulator now requires isn’t a report saying clearing was done, but evidence that it was done, traceable back to the execution date.

Why ground inspection and one-off flyovers no longer close the loop

Ground inspection covers the stretch the inspector walked on the date they walked it, and a flyover covers the corridor visible during the window the helicopter passed. Both methods share a limitation that isn’t about technical quality, but about design: they’re sample-based by definition, while the regulator already operates with continuous coverage.

When the GGT system cross-checks satellite imagery against what the transmission company reported, a discrepancy between the declared clearing and the vegetation observed during the period doesn’t need confirmation from a later field visit to become a record. This repositions what counts as evidence: it’s no longer the field report with the inspector’s date and signature, but satellite confirmation of execution, with polygon, coordinates, and timestamp, produced during the same period the regulator uses for verification.

How different right-of-way events behave over time

Invasive vegetation is the most frequent event and the one GGT focuses on most, and how it’s handled depends entirely on when it’s detected: identified while the canopy is still below the regulatory limit but on a growth trajectory, it’s still a plannable clearing campaign ahead of the July 31 deadline; identified after that date, it’s already an irregularity logged in ANEEL’s system.

Illegal construction within the right-of-way follows similar logic, but with a narrower window and harsher consequences. While the structure is at an early stage, negotiating with the owner happens at an administrative level. Past that point, any removal tends to involve legal proceedings, an indefinite timeline, and much higher cost, which makes the moment of detection, not whether it eventually happens, the variable that determines the cost of the problem.

Earthmoving and excavation near the structure round out this picture. These are events high-resolution optical sensors pick up through changes in the texture and color of exposed soil, and in areas near underground cables they often precede serious ruptures. What separates a monitored event from an incident, in these cases, is precisely the length of the window between detection and occurrence — a window continuous monitoring keeps open.

How NOR closes the loop, from detection to a ticket with valid evidence

At NOR Space Intelligence, this cycle runs on four integrated layers within a single platform, with no data transfer between systems and no break in the evidence chain. Imagery arrives from multiple sources with continuous coverage, with no gap from clouds or smoke, and the geospatial AI model detects and classifies the event. Every detection goes through validation that eliminates false positives before it comes out with polygon, coordinates, date, and operational context, and the corresponding ticket opens automatically in the maintenance workflow, with an owner and deadline defined. Hash and timestamp document every step, making the cycle auditable from the orbital image to field closure.

For transmission companies operating with the NOR Energy product, this supports the utility’s standing with the regulator by proving execution with independent evidence, in the same format GGT uses for verification, before ANEEL runs its own cross-check.