Grid Proximity Mapping

A real distance to grid on every candidate site.

Substations, transmission lines and their corridors mapped from high-res imagery, so each site in your file carries a routed connection distance instead of a ruler line.

01

The files

Deliverable
Distance layer
Format
GIS layer (GeoPackage or shapefile)
What's in it
For each candidate site, the nearest visible substation and the nearest visible transmission line, each with a route distance in miles. One record per site, keyed to your site IDs. Delivered once per annual pass.
Cadence
Annual pass
Deliverable
Corridor route
Format
Line layer
What's in it
A plausible routed path from each site to its nearest substation, drawn with terrain and major obstacles in view (water, highways, steep ground). It follows existing corridors where it can. Open it in your desktop GIS beside your parcel and constraint layers.
Cadence
Annual pass
Deliverable
Region map
Format
GIS layer
What's in it
Every substation and transmission line the imagery shows across your candidate set or region, so you can see the neighbourhood around a site and not only its nearest node.
Cadence
Annual pass
Deliverable
Site table
Format
CSV
What's in it
One row per site: site ID, nearest substation, route distance, straight-line distance for comparison, and a visibility note where the imagery was poor. Paste it into the pipeline tracker.
Cadence
Annual pass
02

How it works

  1. In

    Sites in

    You send candidate sites as points or polygons, or name a region. Say which are in the pilot.

  2. Pass

    Annual pass

    We take a high-res satellite pass over the pilot area at 0.5–2 m, timed to your screening calendar.

  3. Detect

    Detect

    Substations, transmission lines and cleared corridors are identified in the imagery. What the imagery cannot show is left off, not guessed.

  4. Out

    Route and deliver

    A routed distance and path per site, the region map and the table. We go through the first few sites with you on a call.

Schematic: a straight ruler line from a candidate site to a substation crosses a river and a ridge, while the routed path runs out to an existing line corridor and follows it in. 1234
  1. 1 Candidate site
  2. 2 Substation
  3. 3Straight line, the ruler number. It crosses the river and the ridge.
  4. 4Routed path, out to the existing corridor and along it.

Schematic only. Not drawn from any real site.

03

Limits

Condition
Resolution
Effect on the output
At 0.5–2 m a substation yard is many pixels across and easy to find. A tower footprint is a few metres, so at the coarse end it is a pixel or two. Lines are followed by their cleared corridor and the towers that resolve. Distribution feeders and wood poles are not traced.
Condition
Visible infrastructure only
Effect on the output
Underground cable, and any line or substation built since the pass, will not appear. A site can look farther from the grid here than it is.
Condition
The route is plausible, not final
Effect on the output
The path is drawn from visible infrastructure and terrain. It is not a survey, a design or an easement. Verify with the utility and a surveyor before committing capital.
Condition
Physical location, not capacity
Effect on the output
This maps where infrastructure is. It says nothing about available capacity, queue position, upgrade cost or whether the utility would accept a connection.
Condition
Cloud and canopy
Effect on the output
Optical imagery needs a clear-sky window. Cloud or snow can push the pass later, and corridors under dense tree cover are flagged low-confidence.
Condition
Annual cadence
Effect on the output
One pass per region per year, more often on request. It is a screening layer, not continuous monitoring of the grid.
04

Why the ruler number is not enough

Early screening runs on a desktop map. You drop a pin on the parcel, pull a substation and line layer from a public dataset or a utility extract, and measure to the nearest substation. That figure goes in the site file and the shortlist gets sorted on it.

The ruler ignores the river, the highway, the ridge and the easements between the pin and the substation, and the extract may predate whatever was built last year. The site that ranked well turns into a long, awkward gen-tie once someone traces the actual route.

A line of steel lattice transmission towers running across sagebrush range under a rain-heavy sky
Scenery: an overhead line across open range.
05

Who it's for

For

  • Grid connections analysts and interconnection managers at renewables developers, screening candidate sites.
  • Investors and acquisition teams who need a comparable distance figure across a portfolio of sites.
  • A GIS analyst on the same team who will check the layers against the utility's data.

Not for

  • Teams after available capacity or a queue position. Only the utility can say, and it does so in its studies.
  • Cost-to-connect estimates or construction-ready routing.
  • Mapping underground or newly built lines.
  • Distribution-level connection of small rooftop systems.
06

Questions before a pilot

Does this confirm available grid capacity?

No. It shows physical infrastructure only. Capacity, queue position and upgrade cost come from the utility and its studies.

How good is the routed distance?

It is a plausible path along visible infrastructure and terrain, there to rank sites. Check it with the utility before you commit money to a site.

How do we check it against our own data?

Choose pilot sites where you already hold a surveyed route or a utility-confirmed distance and keep that figure back. Compare it with the delivery site by site and decide whether the layer is good enough for screening.

What formats does it arrive in?

GIS layers your desktop GIS opens, and a CSV for the site file. We do not write into your pipeline tracker.

How current is it?

One pass per region per year, with more on request. Anything built after the pass will not show until the next one.

Does it include underground lines?

No. Only what shows in optical imagery.

Can we load it next to our own layers?

Yes. Layers are keyed to your site IDs, so they sit beside your parcel and constraint layers.

Who owns the results and the imagery?

Ownership and licence terms for the deliverables and the imagery go in the pilot agreement before anything is ordered. Ask for them early if your legal team needs to review.

How is a pilot bought and priced?

Scope depends on the number of sites and the region, and we price the pilot area you choose. Tell us how you buy data and we will fit the scope to it.

Put a real distance on your shortlist.

Send us the candidate sites you would put in a pilot and the date your shortlist has to be firm. We will tell you whether the imagery calendar can meet it.

Start a pilot