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es_cnmc_generation_capacity

CNMC — Mapa de capacidad de acceso de generación (red de transporte y de distribución)

Published by Comisión Nacional de los Mercados y la Competencia · ES · Monthly

Archived, pending reviewpending_reviewHealthy

Generation access capacity in MW at every Spanish transmission node and distribution busbar, as the regulator compiles it monthly from the operators' submissions: available (by module type at transmission), occupied and admitted-not-resolved, with the tender/Just-Transition reservation and short-circuit flags.

What is withheld, and why

Every value from this source is withheld. The operator’s terms do not clearly allow us to redistribute its figures, and when signals conflict the more restrictive reading wins until the operator confirms otherwise in writing. Records are still listed — with capacity.value null, access.status "withheld" and a link to the publication — so you know the operator publishes something there.

The publication is still read and kept, because operators overwrite their files and a history not recorded when it happened can never be recovered. If reuse is cleared, customers get the history as well as the present.

The layers, their ArcGIS items (licenseInfo empty) and the landing page carry no licence. CNMC's open-data portal licenses its information for commercial and non-commercial reuse (CC BY-SA 4.0 and Ley 37/2007), but that grant is scoped to the information on the CNMC|Data portal, which has no access-capacity dataset, and Ley 37/2007 excludes documents over which third parties hold rights — these layers are compiled from the operators' submissions, whose own notices reserve commercial use. Pending CNMC's written confirmation that the maps fall under its reuse conditions (research/dossiers/es.md §13 Q1). Archived, never served.

Licence and rights evidence

Licence
Not stated
Attribution
Origen de los datos: Comisión Nacional de los Mercados y la Competencia (CNMC)required
Technical access
Yes
Commercial use
Not established
May be cached
Not established
May be redistributed
Not established
Derived data allowed
Not established

Evidence

Methodology

2 version(s)

Generation access capacity at the distribution networks (each DSO's figures in CNMC's map)

es_cnmc_gen_rdd_2026 · vCircular 1/2021, Especificaciones de Detalle; BOE-A-2025-9913 format

Each distribution operator's monthly generation access capacity per busbar (substation x voltage level) under CNMC's common methodology, as CNMC compiles it: available, occupied (connected plus permits in force) and admitted but not yet resolved, in MW.

Capacity basis
operator calculated
Network state
unknown
Binding
No
Additive across assets
No — do not sum these figures
The method accounts for
reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Comparability class
es_rdd_generation_access_cir1_2021

The operator’s own caveats

  • CNMC: 'sus valores no pueden computarse como directamente sumables' — values are informative and not additive, also across the voltage levels of one substation.

Generation access capacity at the transmission network (REE's figures in CNMC's map)

es_cnmc_gen_rdt_2026 · vCircular 1/2021 and its Especificaciones de Detalle (27-06-2024), as published by REE

REE's monthly access-capacity study for every transmission node, as CNMC republishes it: the capacity available for new requests by module type (synchronous MGES, power-park MPE; generation and storage), the capacity granted and the capacity requested and pending. REE computes it on the final horizon year of the current transmission plan.

Capacity basis
operator calculated
Network state
unknown
Binding
No
Additive across assets
No — do not sum these figures
The method accounts for
reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Comparability class
es_rdt_generation_access_cir1_2021

The operator’s own caveats

  • CNMC: nodes influence one another, so 'sus valores no pueden computarse como directamente sumables'; access requests must still go to the network operator.

How the publication maps to the model

availability types
["available","allocated","requested"]
binding
false
directions
["injection"]
firmness
["unknown"]
geometry precision
exact
includes reserved projects
null
non additive
true
notes
["Two layers. Transmission (Generacion_en_Transporte, 937 REE nodes): available for requests by module type — CAP_DISPONIBLE_MPE / _MGES and their storage twins CAP_ALM_DISPONIBLE_* — are REE's own columns 53/52/57/56 (variants mpe_rdt, mges_rdt; verified 936/937 nodes against REE's file), CAP_OCUPADA is REE's granted total for all modules (allocated, variant mge), CAP_ADMITIDA_NO_RESUELTA its pending requests (requested). Distribution (Generacion_en_Distribucion, 6,149 busbars of 59 DSOs): CAP_DISPONIBLE (available), CAP_OCUPADA (occupied: connected plus permits in force; allocated) and CAP_ADMITIDA_NO_RESUELTA (requested).","CAP_COMPROMETIDA = 1 (all or part of the node reserved for a tender or a Just Transition node), NUDO_LIMITADO_SCC = 1 (limited by short-circuit power) and NUDO_0 = 1 ('0*' node: no capacity now, obtainable with reinforcements) are flags on the available values, never megawatts.","Transmission nodes are keyed by NUDO_AFECCION_RDT, REE's own node name with voltage and binudo suffix (unique; carried as identifier es_ree_node, which joins REE's files). Distribution rows have no stable identifier (OBJECTID is regenerated on each monthly overwrite, SUBESTACION is a name): the key is (GESTOR_RED, SUBESTACION, NIVEL_TENSION), with a 1-based ordinal ordered by the DSO's UTM coordinates where one key repeats (860 i-DE groups); those busbars carry identity_confidence = low.","NIVEL_TENSION is an integer in the layer: i-DE's 13.2 kV busbars read 13. Published as is.","Each busbar belongs to the DSO in GESTOR_RED (its code in the Registro Administrativo de Distribuidores), including i-DE and UFD, whose own publications refuse automated clients.","Points come from the layer geometry, requested in WGS84; a point outside Spain is dropped and the fact recorded, never corrected."]
spatial scope
busbar
technologies
["generic_generation","storage_other"]
units
["MW"]

Query this source

curl "https://api.gridcapacityapi.com/v1/capacity/search?source=es_cnmc_generation_capacity&limit=20" \  -H "Authorization: Bearer gc_live_..."
CNMC — Mapa de capacidad de acceso de generación (red de transporte y de distribución) (Comisión Nacional de los Mercados y la Competencia): licence, methodology and freshness · GridCapacity API