Subject
Vegetation management · data strategy
Scope
Electricity network
Date
2026-08-30
Sheet
1 / 1

The Threefold Force

Base satellite, high resolution, LiDAR, drone — we have every layer. The skill is putting each one where it does its best work.

A vegetation management programme covers the whole network, but the money is decided on a few kilometres. Trees growing into the line are not spread evenly along the route — they appear in patches, and those patches change from year to year.

What changes the patches
Human intervention

A clearance, a planting, a change of land use — creates a new patch, or removes an old one.

Nature itself

A storm, a dry year — or simply a stand reaching the height at which it starts to matter.

The trap

No single layer answers every question

High resolution everywhere

Detailed imagery over every kilometre — even where nothing is changing. The detail lands where nobody needs it, and the rest of the toolkit sits unused.

The continuous base on its own

It watches the whole network and shows where the bands are shifting — but it does not measure the individual tree, so the final question stays open.

The answer is not one or the other. Every layer — base satellite, high resolution, LiDAR, drone — in its own role, combined to fit the question.
The ratio worth keeping in mind throughout

The money is not in the survey, it is in the intervention

In pruning, felling, forestry work, call-outs and outages. A monitoring system earns its place when it works continuously, across the whole network, and sends each data layer only where its question is.

Good monitoring, moreover, does not add to the cost of the work — it cuts into it: it sends the crew where the work actually is, and skips the sections that need nothing this year.

This is why it is a service, not a project

A monthly fee that keeps working

A single large survey project strains the annual budget, then goes stale within eighteen months. A monthly fee spreads out, stays predictable and — more importantly — shows the current state, not last year’s.

ONE YEAR OF VEGETATION MANAGEMENT COST PHYSICAL INTERVENTION pruning · felling · forestry work · call-outs · outages MONITORING the bulk of the cost whole network and it cuts into this it sends the crew where the work actually is — the rest can be left alone this year Each data layer does its own job — together they tell the crew where to go.
The money in vegetation management is in the intervention. Monitoring earns its place by cutting into it — because it says where no work is needed this year.
THE BASE SYSTEM the framework, with satellite processing included — risk classification the entire network · continuously GLOBAL MODEL height, species mix, growth — validated against LiDAR retrained region by region TARGETED HIGH RESOLUTION where the model flags risk, and only there on the flagged sections THE PROCESSING fusion · height model · risk matrix · work package minimum area, swath width and timing are resolved here PROCESSED RESULT — NOT SATELLITE IMAGERY GIS · export · report · work list broken down by span
The three layers are not alternatives to one another; each is the condition for the next. The base system says where to look. The model says what it sees means. And high resolution only goes where the other two have already marked the spot.

One measurement — Most of the network does not even run through woodland

So that this is not merely a claim: we selected three network areas and measured them end to end. In total, more than 159,000 kilometres of medium-voltage line, with a ±10 metre band on either side, compared against public 30 metre land-cover data.

Take the first. On this 22,580 kilometre network, only 5.2 percent runs through woodland. The rest passes through built-up areas, farmland and low vegetation — where the growth either never reaches the conductor, or is mown and managed every year.

AREA “A” · 22,580 KM MEDIUM-VOLTAGE NETWORK within a ±10 m band along the line 84.3% THE FOCUS IS HERE built-up area 19,032 km 84.3% agriculture, low vegetation 2,325 km 10.3% wooded area 1,185 km 5.2% 22,580 km × € 5 / km / year = € 112,900 / year ≈ € 9,408 / month the base system — across the entire network, with risk classification Targeted high resolution on top — only on the 1,185 wooded km, and only where the classification calls for it.
A mid-sized distribution network. The base system watches all 22,580 kilometres, on a per-kilometre annual fee — that is the price of full, continuous coverage. The targeted layers — high resolution, LiDAR, drone — come into play on the 1,185 wooded kilometres, and not even always there. The filtering is done by the base system itself, before anyone buys a single image.

The other two areas told a very different story. Same method, same band width — and the share of wooded sections ranges from 5.2 to 39.1 percent . On one network every twentieth kilometre needs vegetation attention; on another, almost every third.

There is no single right number. There is no industry average to plan from — which is exactly why it must be measured before anyone writes a budget into a spreadsheet.

SHARE OF WOODED SECTIONS ACROSS THREE AREAS same method, ±10 m band 0% 10% 20% 30% 40% AREA “A” 22,580 km 5.2% AREA “B” 38,741 km 6.1% AREA “C” 97,877 km 39.1% A SEVENFOLD SPREAD
The same measurement on three different networks. The share of wooded sections shows a sevenfold spread. Plan with an industry average and in one case you spend six times more than needed — in the other you allocate far less than the real risk deserves.

The first force — The base system: the whole network, continuously

The customer does not buy data; they get a framework with satellite processing already inside it. This layer covers the whole network, not occasionally but continuously: the same section gets a fresh reading continuously.

What it gives Risk classification

Which span is fine, which one has started growing, where the stand’s condition has declined, where drought stress shows.

How precise Relatively precise within the band

It does measure — but its purpose is not to give the height of every single tree to the centimetre. The purpose is watching the bands: where the situation is changing, and in which direction.

Why that is enough The first question is never 8.2 or 8.7 metres

It is which thirty kilometres to inspect this year. The classification answers exactly that, and it refreshes every month.

What this yields is more than any single image could give. Readings have been accumulating over the same place for years, across seasons and growth stages — and from that time series the pace of leafing, year-on-year change and declining condition can all be read. Our own processing is what brings that out.

The second force — A global model with local ground truth

A model trained on one country works in that country. We train the same height and species-composition model across biomes on several continents — because networks also run through several climates, and because diversity is what makes the model stable even where it has never been.

Why global Networks do not stop at borders either

The same species grows differently in another climate, and behaves differently beside a conductor. A single-country model cannot know this.

Local ground truth LiDAR validation in every new area

We compare what the model says against measured, tree-level truth. Where it diverges, we refine it with local data.

The feedback What is learned here improves everywhere

The refinement feeds back into the global model, so the system gets more accurate with every deployment — not only where it happens to be working.

So the customer is not buying a boxed product but a model calibrated to their own area, with every earlier validation standing behind it.

World map coloured by climatic and vegetation zones.
The model was not built for one country. The colours mark climatic and vegetation zones — the same species grows quite differently in Scandinavia, the Mediterranean or the tropics , and behaves differently beside a line as well. That is why we train the model across zones on several continents.
GLOBAL MODEL height · species mix growth several continents · several biomes gives an estimate for the new area THE CUSTOMER’S AREA the model says what it expects — and where it is unsure LiDAR — THE MEASURED TRUTH tree-level check on the ground this is where the model’s errors show the difference refines the local model AND IT FEEDS BACK INTO THE GLOBAL MODEL the next area starts with that knowledge
The model is not a static product. In every new area, LiDAR’s measured truth checks it, and where it diverges it is refined — and the lesson returns to the global model. That is why the system gets more accurate with every deployment, not only where it is currently working.

The third force — High resolution — but only where it is needed

Once the first two layers single out a section, the targeted layer takes over — high-resolution imagery, LiDAR or drone. At that point we are not buying an image — we are choosing a tool for a purpose: one kind of image tells you how tall the tree is, another tells you whether something has been built on the route.

The choice Stays with the customer

Nobody has to work out which tool fits each section: our system knows every available data product and proposes the right one for the purpose. We recommend; the customer decides.

What it weighs in the background Technical fit and price, at the same time

Is the resolution fine enough for the question; is it from a single day or stitched from several years; what is the supplier’s minimum order and minimum swath width; does the corridor-shaped area or the bounding box work out cheaper.

What comes out A single number: the price per kilometre

Not km², not scenes, not credits. The unit a network operator already thinks in.

The system at work: on the left the LiDAR point cloud with the conductor and trees, on the right the same span on an orthophoto with measured heights and risk classification.
The system at work. On the left, the LiDAR point cloud — the tree-level truth we validate the model against. On the right, the same span on an orthophoto, with measured conductor height, minimum clearance and risk classification. The model bridges the two even where LiDAR has never been.
What you want to knowWhat we pull in for itBilled as
How tall are the trees beside the line? Surface and terrain model; canopy height computed from the difference, broken down by span € / km / year
What has changed since the last survey? Comparison of repeat images with known acquisition dates — new growth, clearance, construction € / km
Has anything been built on the route? High-resolution imagery on which a building or a new road is unmistakable € / km
Where did trees fall on the line after the storm? Priority acquisition across the whole network within 24–72 hours — here the question is time, not price case by case
This is the menu: not a list of satellites but a list of questions. The customer picks the question; we propose the tool, and the customer decides.

What else it answers — The same chain, different questions

Vegetation is our foundation — our oldest and best-validated field. But the technology is the same: satellite time series, height model, change detection and object recognition. Whatever can be answered this way, we can do — the only difference is what we look for.

Vegetation along the network

Tree height by span, band classification, growth tracking. Trained and validated against LiDAR.

our core field

Rapid post-storm assessment

Where trees fell on the line, where the route broke, where vehicles cannot get through — hours before the first patrol, across the whole network at once.

Here the question is time, not price.

priority acquisition · 24–72 h

Unpermitted construction

A new building, extension or outbuilding on the route or in the safety strip — before anyone moves in, and before it becomes a legal case.

0.5 m or finer, repeated

Encroachment into the safety strip

Not just vegetation: stockpiled material, containers, parked vehicles, staging areas under the line.

change detection

Railway overhead line

The same task on a different track: vegetation along the rails and the surroundings of the overhead line.

the same chain

Changes to assets

Substation, tower, access road, fence — what was built, what disappeared, what deteriorated since the last image.

object recognition

Land-use change

Clear-cutting, a new road, illegal dumping, earthworks around the route — what becomes a risk tomorrow.

time-series comparison

Terrain and elevation model

0.5 m surface and terrain model for design, route selection, line-of-sight and sag calculations.

DSM + DTM

The real question — It is not whether we can measure height

That question is settled here. We can give height, band classification and growth trend — and we can measure how accurately we do so. The question is at what cost we do it, and how often.

Because there is a trap here that every vegetation programme runs into: no single layer gives both the detail and the rhythm. LiDAR gives the tree-level truth, but it is flown at long intervals — between two flights it misses the change, and in five years a tree grows by exactly the amount the whole question is about. High-resolution imagery and drone give detail where they are sent; the continuous base gives the whole network every month. On its own, each leaves the same gap — dynamics or detail.

The threefold force resolves precisely this dilemma. Not by compromise — it is not that you get a slightly worse version of everything. It is that each layer does the job it is best at: the continuous base monthly, the model always, and LiDAR, high resolution or drone exactly where and when the other two have said they are needed.

THIS IS WHERE YOU WANT TO BE every five years monthly HOW OFTEN YOU GET A FRESH READING EFFORT PER READING LiDAR HIGH RESOLUTION BASE SYSTEM LiDAR the tree-level truth — flown at long intervals, it validates the model High resolution detail on demand — pulled where the question is Base system the whole network, every month — it classifies into bands, it does not measure to the metre THE THREE TOGETHER the accuracy of the rare measurement reaches places it never visited
Every layer has its own rhythm: LiDAR gives the tree-level truth at long intervals, the base system gives the whole network every month. No single source reaches the bottom-right corner on its own. The layers together do — because the LiDAR measurement carries through the model to sections it has never visited.

What we do not replace — We do not take the human out of the process

This is worth saying plainly, because many promises today claim the opposite. The actual intervention — what to cut, how, under what conditions, on whose land, under what permit, with what machinery you can get there — is always decided on site. This cannot be determined from orbit, and we do not claim otherwise.

What we do is two things. We shorten the path: the crew does not spend the week finding the problem but solving it. And we optimise the risk: we direct attention where the network is genuinely vulnerable, so that the chance of failure converges, step by step, towards zero.

The decision stays with the specialist. All we want is that when they go out, they already know what they will find.

The field application’s start screen on a mobile phone.
1
Technology says WHERE

Which span is at risk — from the height model and the risk matrix. That is where the machine’s job ends.

2
The field app takes you there

The specialist records on site: species, condition, access, protected species. Offline-first — it works without signal, then syncs.

3
The specialist says WHAT

Pruning, felling, stump removal — with local knowledge, permits and an understanding of the conditions. No image can tell you this.

HIGH MEDIUM LOW VEGETATION CONDITION AND HEIGHT very lowlow mediumhigh very high PROBABILITY OF FAILURE MONITOR SCHEDULE URGENT increasing priority
This is how far the system goes: every span gets its place in the matrix, and from that comes the order of priority. What then has to be done on an urgent section, and how — pruning or felling, on whose land, under what permit, with what machinery — is decided on site.

What we ultimately deliver

Not satellite imagery and not a data file. A processed data catalogue: tree height by span, band classification, growth trend, risk zones — loadable into GIS, as a report, and as a work package the contractor can pick up the next morning.

The customer does not have to choose a satellite, sign contracts with suppliers or compare minimum order sizes. The three forces work in the background, and only one thing surfaces: the answer to what was asked.

And something is coming. Within a few weeks we will publish a tool on our website where anyone can…

… and from here we say nothing.

We think every network operator has wanted something like this — and simply never got it from anyone. Worth checking back.

The point in one sentence

Every layer in its own role — the high-resolution image, the LiDAR flight or the drone goes only where the other two layers have already said it is needed.

Farkas Péter, CEO · Talamone Group
Grid intelligence & vegetation management