es_ree_demand_access_capacity

REE — Capacidad de acceso de demanda en la red de transporte

Published by Red Eléctrica de España, S.A.U. · ES · Monthly

Archived, pending reviewpending_reviewHealthy

Demand and storage (offtake) access capacity in MW at each of REE's 937 transmission nodes, from its monthly study: nodal capacity and margin by criterion, the reference value reserved for the underlying DSO, granted and pending capacity by demand type, the gross margin, the capacity not grantable with REE's reason, and the capacity available for requests under the general criterion.

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.

REE's legal notice claims the site's information including its databases; exploitation needs prior written authorisation, and reuse citing REE is allowed only for informative, non-commercial purposes. A publication duty is not a reuse licence. Archived, never served, until REE authorises commercial reuse in writing (research/dossiers/es.md §13 Q2).

Licence and rights evidence

Licence: REE Aviso legal, §5.1 Propiedad intelectual (all rights reserved) (opens the operator’s site)
Attribution: Fuente: Red Eléctrica de España (REE), capacidad de accesorequired
Technical access: Yes
Commercial use: No
May be cached: Not established
May be redistributed: No
Derived data allowed: Not established

Evidence

siempre que sea con fines informativos y no con finalidad comercialwww.ree.es/es/aviso-legal (opens the operator’s site) · read 25 Sep 2026

Methodology

1 version(s)

REE demand access-capacity study, transmission nodes

es_ree_dem_rdt_2026 · vCircular 1/2024 and its Especificaciones de Detalle (Resolution 1-12-2025, BOE-A-2025-25253)

REE's monthly study of the demand access capacity of each transmission node: nodal capacity and margin under the short-circuit, static and dynamic criteria, the reference value reserved for the underlying distribution network, the gross margin, the capacity not grantable at the transmission network (tender nodes, reference value not agreed) and the capacity available for requests under the general criterion, by demand type.

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_demand_access_cir1_2024
Documentation: Operator’s method (opens the operator’s site)

The operator’s own caveats

REE: the publication is informative; the specific study of each individual request always prevails.
Values are blank where the reference value was not agreed with the distribution operator; they are not zero.

How the publication maps to the model

availability types: ["total","available","reserved","allocated","requested","unknown"]
binding: false
directions: ["offtake"]
firmness: ["unknown"]
geometry precision: none
includes reserved projects: null
non additive: true
notes: ["One node per 'Nombre y tensión del nudo' (the same 937 nodes as the generation file), identifier es_ree_node. No coordinates; CNMC's demand layer has the nodes with geometry.","Every value is one column, its variant naming the column: per criterion the nodal capacity (total) and unoccupied margin (available) — wscr_* (short-circuit criterion, CEP demand only), estatico_* (static, demand and storage), dinamico1_margen (CEP with voltage-dip ride-through and non-CEP) and dinamico2_margen (CEP without it); valor_referencia_rdd (the reference value reserved for the underlying DSO's consumption: reserved); granted (allocated) and pending (requested) by demand type; margen_total_* (gross margin); no_otorgable_* (not grantable at the transmission network: availability unknown, with REE's reason); and the capacity available for requests under the general criterion (cep_ch, cep_sh, no_cep, storage cep / no_cep).","CEP is demand connected through power electronics; CH / SH is with / without voltage-dip ride-through ('con / sin hueco').","A blank is not zero: 313 nodes have blank margins, not-grantable and available columns because the reference value was not agreed with the DSO (REE's reason, column 54, travels in details). Those values are null and flagged not_published. CNMC's layer writes 0 for the same cells.","Numbers have no decimals; the WSCR columns write '.' as a thousands separator ('1.310' is 1,310 MW, checked against the XLSX's numeric cell)."]
spatial scope: node
technologies: ["generic_load","storage_other"]
units: ["MW"]

Query this source

$ curl "https://api.gridcapacityapi.com/v1/capacity/search?source=es_ree_demand_access_capacity&limit=20" \  -H "Authorization: Bearer gc_live_..."