TransmissionMap (Global Electrical Transmission Map): what it returns, and whether it works in Clay

TransmissionMap (Global Electrical Transmission Map) is not available in Clay. It is best for Diligence, Content demo, Lead lists. Pricing: Free. Access: Open source; code MIT, data per upstream licence (OSM ODbL share-alike; HIFLD, EIA, Census public domain; several CC BY 4.0; Our Grid Future free for non-commercial use only; ODIN declares no licence). Free hosted map and free GeoJSON and CSV downloads. 1 star; created 2026-07-01, last commit 2026-10-15..

Data domains: Geography, Infrastructure, Signals, Weather.

What does TransmissionMap (Global Electrical Transmission Map) return?

Documented fields: HIFLD substations hifld_id, name (about 30% filled), max_kv, min_kv, kv_range; region tags states, counties, ba, nerc, retail. Live outages (ORNL ODIN, county level): FIPS, customers_out, incident_count, utility name, cause, metersaffected, customersrestored, generated_utc. Other layers: OSM transmission lines, substations, generators, plants, pipelines, data centres; IM3 data centre atlas footprints; Moratorium Nation data centre moratoriums; EIA-860 generators (capacity, fuel, NERC region, balancing authority); HIFLD lines and natural gas; BOEM offshore wind leases; MSHA mines; WECC paths; WestTEC 10-year plan; Our Grid Future planned transmission; NWS alerts; NASA FIRMS and NIFC wildfire; USGS seismic hazard; FEMA NRI; WorldPop; Census ZCTA and counties.

What can you derive from it?

1. Distance from a site to the nearest substation of 230 kV or more, a grid-access proxy for data centre, industrial or renewable projects. 2. Counties with data centre moratoriums near planned transmission. 3. Live customers out by county and utility (ODIN). 4. Generator capacity by fuel within a balancing authority.

How would a GTM team use it?

1. Diligence for energy, data centre or industrial targets: check a site's grid proximity, moratorium status and hazard layers, then cite HIFLD, EIA and ODIN directly. 2. LinkedIn content: "which US counties have banned new data centres, and where the big lines run", using the moratorium and transmission layers. 3. Account research for an energy-services client: EIA-860 generators by owner and region as a starter list of plants (plant level, no contacts). 4. Outage map screenshot after a storm as timely content.

What are the caveats?

Not a native Clay integration as of 2026-10-17 (checked against Clay's integrations catalog). Says "for educational and informational use only". Coverage is North America focused despite the "global" name; power outages are US only and partial (roughly 34 to 38 states, self-reported by utilities). 70% of HIFLD substations carry an UNKNOWN placeholder name. OSM layers impose share-alike if redistributed. Our Grid Future layer is non-commercial, so keep it out of paid client deliverables. Built by one person with AI assistance and very few users, so check layers against the source before relying on them. No camera content.