Methodology
Source dates, gaps and terms.
About this
What a record page cannot say: how old a source’s data is, which gaps mean no source rather than no activity, and what the words mean.
Some sources here allow noncommercial use only. Each is credited on its records, and it comes off the site if we stop publishing it.
What is not here
Empty here means no source, not nothing happening.
What is not here
239 sources are registered and 53 have rows flowing. The register holds 73,326 projects, 5,243 RFPs and funding notices and 162,260 existing assets. An empty result for anything below means we have no source, not that nothing is happening.
Technologies with no rows
Our classifier can produce these, and no loaded source ever has: Fuel cell.
Registers we hold but do not publish
Nothing from these appears on this site. 5 of the 50 are interconnection or connection registers, the absence you would feel on the map.
Ownership depth
48,119 of 50,272 companies have no recorded parent (2,153 do). A company page showing no parent is a company we have no parent record for.
Existing assets: sources per type
Each type is loaded one row per source record. Where a type has more than one source and nothing yet resolves them to one record per asset, a count over its rows can exceed the number of assets.
| Asset type | Rows | Sources | One record per asset |
|---|---|---|---|
| Power plants | 116,525 · 116,507 with a location | Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses) 81,231 GEM tracker rows sourced from TransitionZero (rows carrying a TZ ID), CC BY-NC 4.0 18,722 EIA-860M 16,572 |
Yes |
| Transmission lines | 34,302 | LBNL 13,084 OpenStreetMap power network, US — transmission lines and cables (69 kV and up, or voltage not tagged) and substations, from Geofabrik's US state extracts 21,218 |
Not yet |
| Substations | 6,208 | OpenStreetMap power network, US — transmission lines and cables (69 kV and up, or voltage not tagged) and substations, from Geofabrik's US state extracts 6,208 | One source, so nothing to resolve |
| RNG projects | 1,851 · 1,339 with a location | EPA AgSTAR 498 EPA LMOP 1,353 |
Not yet: measured |
| Petroleum product terminals | 1,474 | EIA Energy Atlas 1,474 | One source, so nothing to resolve |
| Gas processing plants | 478 | EIA Energy Atlas 478 | One source, so nothing to resolve |
| Gas storage sites | 412 | EIA Energy Atlas 412 | One source, so nothing to resolve |
| Gas pipelines | 259 | EIA Energy Atlas 259 | One source, so nothing to resolve |
| Ethanol plants | 204 · 197 with a location | EIA Energy Atlas 197 EIA ethanol capacity 7 |
Yes |
| Refineries | 130 | EIA Energy Atlas 130 | One source, so nothing to resolve |
| Crude oil pipelines | 128 | EIA Energy Atlas 128 | One source, so nothing to resolve |
| Petroleum product pipelines | 117 | EIA Energy Atlas 117 | One source, so nothing to resolve |
| Crude oil rail terminals | 94 | EIA Energy Atlas 94 | One source, so nothing to resolve |
| HGL pipelines | 70 | EIA Energy Atlas 70 | One source, so nothing to resolve |
| LNG terminals | 8 | EIA Energy Atlas 8 | One source, so nothing to resolve |
Status values no source produces
These words are in the vocabulary and no loaded source maps into them, so no record carries them today: Frozen, Reinstated, Cancelled. What each means.
Notes
5ERCOT publishes no request-level large-load data, so no Texas large-load request is listed.
The data-centre sites on this register come from air-permit registers (Virginia DEQ and EPA ICIS-Air), carry no MW, and are not grid requests. ERCOT reports its large-load interconnection queue only as system-wide totals and charts in PDF decks, with no file that lists individual requests, their size, status or location. The ERCOT large-load connector watches ERCOT's data catalogue each month and has found no such file; until one appears, an empty Texas large-load view is a fact about what ERCOT publishes, not about Texas demand.
Written 2026-10-07. The numbers above it are measured on every page load; this paragraph is not.
Interconnection queues withheld pending licence clearance: PJM and MISO.
PJM and MISO rows are published nowhere, on any tier, because their terms do not let us republish them: they require a licence we do not hold, or grant a use this site is not operating under. No projects from these queues is a fact about our licences, not about the queues.
Written 2026-11-09. The numbers above it are measured on every page load; this paragraph is not.
Most companies have no recorded parent.
Ownership comes from GLEIF's Level 2 accounting-consolidation parents, which cover LEI-registered entities only, plus a small curated file of edges taken from companies' own published statements. A company shown with no parent is a company we have no parent *record* for; privately held and fund-owned operators are systematically the ones missing, which is the opposite of what an empty parent field looks like.
Written 2026-09-21. The numbers above it are measured on every page load; this paragraph is not.
Coverage is US-first, with three non-US feeds.
Supply coverage is three US interconnection queues plus the federal generator inventory and the GB transmission register. Demand coverage is EU, GB, US federal and multilateral-bank notices. There is no coverage of US state or local permitting, no non-GB European interconnection queue, and no Canadian, Australian or Asian supply source. Absence of a country here means we have not built it, never that nothing is happening there.
Written 2026-09-21. The numbers above it are measured on every page load; this paragraph is not.
RNG projects: two EPA sources, covering different populations.
The two sources are not resolved to one record per project either, but they do not need to be: LMOP lists landfill-gas projects and AgSTAR lists farm digesters, and no project was found in both (0 cross-source links, measured 2026-09-22, docs/24). A count over these rows is a count of projects. It is listed here because the table above cannot tell an overlap from a disjoint pair, and a reader should not have to guess which this is.
On this load: 1,851 rows from 2 sources, 1,339 with a location. This note is withdrawn automatically when the type has one source or a resolution exists.
Written 2026-09-25. The numbers above it are measured on every page load; this paragraph is not.