Every cited factual claim resolves to a primary source — tap a mark to see the source ■ 27 briefs
RM21-17: Order 1920 compliance filings due Feb 12, 2027

Source register

Gridlight monitors 54 named primary sources across 10 beats, each on a stated cadence. This table is the whole register — including the sources that are currently failing. Coverage gaps are disclosed here, not promised away.

0 reporting healthy 54 degraded or failing 0 not yet swept

ERCOT 4

SourceCadenceHealthLast success
ERCOT NPRR tracker (revision requests) daily pass Sep 24, 2026

Federal 2

SourceCadenceHealthLast success
Watch: DOE NIETC corridor dockets (Regulations.gov) watch only daily pass Sep 24, 2026

FERC 3

SourceCadenceHealthLast success

ISO-NE 4

SourceCadenceHealthLast success
ISO-NE Key Projects pages daily pass Sep 24, 2026
ISO-NE Markets Committee (MC) weekly pass Sep 23, 2026
ISO-NE Planning Advisory Committee (PAC) weekly pass Sep 23, 2026

MISO 5

SourceCadenceHealthLast success

NYISO 5

SourceCadenceHealthLast success

PJM 7

SourceCadenceHealthLast success
PJM Members Committee (MC) daily pass Sep 24, 2026
PJM Operating Committee (OC) daily pass Sep 24, 2026
PJM Planning Committee (PC) daily pass Sep 24, 2026

Southeast 11

SourceCadenceHealthLast success
Florida PSC Ten-Year Site Plans weekly pass Sep 23, 2026
Georgia PSC docket document API daily pass Sep 24, 2026
TVA filings via SEC EDGAR (CIK 1376986) daily pass Sep 24, 2026
Watch: Georgia Power 2025 IRP (GA PSC 56002) watch only daily unverified —

SPP 8

SourceCadenceHealthLast success
SPP Board of Directors document library daily pass Sep 24, 2026
SPP Market Working Group (MWG) page weekly pass Sep 23, 2026
SPP Revision Request tracker daily pass Sep 24, 2026

West 5

SourceCadenceHealthLast success
Watch: APS data-center rate proposal (AZ CC E-01345A-25-0105) watch only daily blocked (4 in a row) —

Tip-only sources — trade press Gridlight reads for leads — are deliberately not in this table. They never carry a claim, so their cadence says nothing about coverage. What a tip leads to is confirmed in a primary document before it is written about.