Generation capacity access at network nodes
Check the availability of power for generation facilities at our network nodes
La capacidad de acceso disponible para cada nudo se ha determinado como la potencia activa máxima adicional que puede inyectarse en dicho nudo teniendo en cuenta exclusivamente la capacidad ocupada informada en todos los nudos de la red y el escenario de instalaciones previsto sin considerar refuerzos adicionales, de acuerdo a los criterios de la Circular 1/2021 de la CNMC y de las "Especificaciones de Detalle" para la determinación de la capacidad de acceso. Esta información, de carácter indicativo, no evita la necesidad de realizar un estudio específico para cada solicitud individual que tenga en cuenta cualquier variación en el escenario, como la consideración de las solicitudes en trámite con mejor orden de prelación, tanto en el nudo de estudio como en otros nudos de la red que puedan tener influencia en el mismo.
No se tienen en consideración las limitaciones que pudieran existir en redes de otros distribuidores, en la red de transporte o en la propia subestación, motivados por aspectos de configuración u operación de la misma y los relativos a la viabilidad de conexión. Dichas limitaciones se evidenciarían, llegado el caso, en los correspondientes informes de aceptabilidad y de acceso y viabilidad de conexión que deberán realizarse para cada solicitud individual.
Los valores de "Capacidad de Acceso Disponible" informados no deben interpretarse como valores de capacidad simultáneos ni sumables. La conexión de un generador en un nudo no sólo disminuye la capacidad de acceso disponible en dicho nudo, sino también en los nudos de su red próxima.
Los valores de capacidad ocupada y admitida y no resuelta informados se refieren exclusivamente a los generadores conectados o con permisos de acceso y conexión concedidos o solicitados exclusivamente en estos nudos, pero no en líneas ni nudos de la red de distribución subyacente de los mismos.
Debido a que las publicaciones se realizan habitualmente con periodicidad mensual, es posible que reflejen capacidad disponible en un nudo que puede estar ya agotada por solicitudes admitidas y no resueltas, tanto en el propio nudo como en otros de la red con influencia en el mismo o en sus redes subyacentes.
Salvo casos excepcionales, debidamente justificados, se denegarán solicitudes de acceso y conexión que no se ajusten al rango de potencias máximas y mínimas por nivel de tensión establecido en las "Especificaciones de Detalle".
Las solicitudes que se realicen sobre nudos en los que la capacidad publicada sea de 0 MW serán inadmitidas, según el art 8.1 apartado d) del RD1183/2020.
In compliance with RD 1183/2020 of 29 December on access and connection to electricity transmission and distribution networks, Article 5, and CNMC Circular 1/2021 of 20 January, which establishes the methodology and conditions for access and connection to transmission and distribution networks for electricity generation facilities, Article 12, the access capacities are published for each voltage level above 1 kV in the HV/HV and HV/MV substations operated by EDistribución Redes Digitales SLU and Energías de Aragón I SLU. These capacities are reported and calculated as defined in the CNMC Resolution of 27 June 2024, which sets out the Detailed Specifications for determining generation access capacity to the transmission and distribution networks, as well as in the CNMC Resolution of 30 April 2025, which establishes the formats for publishing demand and generation capacities by distribution network operators.
The available access capacity for each node has been determined as the maximum additional active power that may be injected at that node, taking into account only the occupied capacity reported at all network nodes and the planned installation scenario without considering additional reinforcements, in accordance with the criteria set out in CNMC Circular 1/2021 and the “Detailed Specifications” for determining access capacity. This information, provided for guidance only, does not remove the need for a specific study for each individual request, which will take into account any variations in the scenario, such as pending requests with higher priority, both at the node under study and at other nodes in the network that may influence it.
Limitations that may exist in other distributors’ networks, in the transmission network, or in the substation itself, due to configuration or operational aspects, and those relating to connection feasibility, are not taken into account. Such limitations would, where applicable, be identified in the corresponding acceptability and access, and connection feasibility reports that must be carried out for each individual request.
The reported “Available Access Capacity” values must not be interpreted as simultaneous or cumulative capacity values. The connection of a generator at a node not only reduces the available access capacity at that node but also at nodes within its adjacent network.
The reported values for occupied capacity and for admitted but pending capacity refer exclusively to generators connected or with access and connection permits granted or requested at these nodes or within their underlying network at the same voltage level
As publications are issued monthly using data from the previous month, they may reflect available capacity at a node that has already been fully allocated due to requests accepted before the publication date, both at the node itself and at other nodes in the network that may influence it or its underlying networks.
Except in duly justified exceptional cases, access and connection requests that do not comply with the maximum and minimum power ranges per voltage level established in the “Detailed Specifications” will be rejected.
Requests specifically targeting nodes where the published capacity is 0 MW will be inadmissible, in accordance with Article 8.1(d) of RD 1183/2020.
NOTICE FOR STORAGE APPLICATIONS
Regarding the entry into force of the CNMC Resolution of 27 June 2024, which establishes and amends the Detailed Specifications for determining access capacity for demand and generation to distribution networks, specific operating patterns for storage facilities shall not be taken into account until they are approved by a CNMC resolution and published on this platform. In accordance with the First Transitional Provision of CNMC Circular 1/2024, and until such resolution is approved, storage facilities shall continue to be assessed based on the existing firm capacity of the network, considering their operation both as generation and as demand.
As set out in DA2ª of CNMC Circular 1/2021, applications for installed capacity exceeding 5 MW on the mainland and 500 kW in non-mainland systems may require an acceptability report to evaluate the impact on the transmission network of the connection to the distribution network.
Generation Capacity Map
This map provides an approximate geographical indication of the e-distribución network nodes with available access capacity for generation.
The capacity map should be regarded as an informative representation of the capacities published in the official XLSX/CSV listings. In the event of any discrepancies, the official values are those shown in the XLSX/CSV files.