Relationship, requires input

Electricity system requires input Transmission and distribution grid

The stored status is what a reviewer approved. The level below it is what the overlapping data support; the two are shown side by side and only a human moves the status.

Stored statusEstablished relationEvidence level (latest analysis)not analysed yet

Mechanism, evidence, reviewer judgements

The edge as stored

Electricity system requires input Transmission and distribution grid3 evidenceEstablished relation

Electricity system depends on Transmission and distribution grid.

Mechanism

Electricity is generated in one place and used in another. Delivering it to homes and industry physically requires transmission lines, substations and distribution networks; access statistics count connections to that network.

Evidence

documentIEA, Electricity Grids and Secure Energy Transitions (2023)iea.orgGrid expansion, connection queues and transformer and cable supply chains.checked 2026-09-07
documentEIA, Electricity explained: how electricity is delivered to consumerseia.govTransmission at high voltage, step-up and step-down transformers, distribution.checked 2026-09-07
metricelectricity-accessShare of population with a grid connection.

Status: established_identity_or_engineering_relation
Reviewer confidence: 0.99
Stated strength: 1.00
Lag: not stated
Version: curated_seed_v1
Reviewed: 2026-09-07

Confidence and strength are curated judgements recorded with the edge, not measured quantities.

Entity pages: Electricity system, Transmission and distribution grid. Part of the mechanism More delivered electricity needs more transformers, which need copper, aluminum and electrical steel.

Not computed

Statistical evidence

No analysis has been stored for this edge. The causal.analyze_all job runs monthly over every edge with a catalog metric linked to both entities; edges without a series on both ends are not analysed.

Not computed

Causal estimate

A causal estimate needs at least 20 overlapping periods and was not attempted for this edge yet.

What each rung means

Levels

Level 0: No association found
the overlapping data show no significant association.
Level 1: Correlation only
statistically associated in the overlapping periods; no direction, no mechanism.
Level 2: Predictive lead/lag
one series historically contains predictive information about the other.
Level 3: Mechanism supported
a documented physical, economic or institutional mechanism with cited evidence.
Level 4: Causally supported
a backdoor-adjusted estimate that survived refutation, on stated assumptions.
Level 5: Established relation
follows from engineering, accounting or scientific structure.

Every stored run, newest first

Analysis history

No runs stored.