Transmission Line, Substation & ISO/RTO Lookup
Find the nearest transmission line and substation to any US lat/lon, plus the serving utility and ISO/RTO. Includes 69 kV sub-transmission. No API key.
Transmission Line & Substation Distance API by Coordinatesmalonestar/hifld-grid-proximity-screener
Asset label
Grid access tier
Nearest line distance (mi)
Nearest line voltage (kV)
+25 fieldsTextNumberBooleanListObject
Input
Assets (sites to screen)(required)
lat:39.017+3
lon:-77.46+3
label:Ashburn VA data center site (PJM)+3
Search radius (miles):10
Screen electric substations:true
Screen power plants and storage:true
Resolve serving utility and ISO/RTO:true
Flag non-authoritative planned lines (advanced):true
Skip ERROR rows (do not emit or bill them):false
Max assets to screen:500
Output fields
Asset label
Grid access tier
Nearest line distance (mi)
Nearest line voltage (kV)
Nearest line voltage class
Nearest line owner
Lines within radius
Sub-transmission lines within radius
Max existing line voltage within radius (kV)
Nearest substation name
Nearest NAMED substation
Nearest substation distance (mi)
Nearest substation max voltage (kV)
Nearest substation line count
Named substations within radius
Substations within radius
Nearest power plant name
Nearest power plant distance (mi)
Nearest power plant capacity (MW)
Nearest power plant fuel
Power plants within radius
Generation within radius (MW)
Battery storage within radius (MW)
Serving utility
ISO / RTO
Balancing authority code
Utility customer count
Transmission line source
Error
Sign up on Apify01
Create your Apify account to access the Transmission Line & Substation Distance API by Coordinates.
Start the run02
The Actor will start running based on the input automatically.
Receive the output03
Monitor the progress in real-time. You will be notified as soon as your dataset is complete and ready for review.
Integrate into your workflow04
The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow.
