E-DISTRIBUCION
DSO - Spain
Publication info
| Publication status | Published |
| Access link to GHC publication of the SO | |
| Access type | Open |
| Geographical Coverage | Hosting capacity information is available for each DSO in Spain. |
| Spatial granularity | Nodal (substation) |
| Voltage Level Coverage | HV (1 kV and above) |
| Time Horizon (e.g. Y+1, Y+3 / 202x / snapshot) | Snapshot |
| Data Format (Table, Map, etc.) | Map and Table |
| Grid user types covered | Two different maps: one for generation and one for consumption |
| Displayed Capacity Type (e.g. available/requested/reserved/connected etc.) | For every electrical distribution node, the information is provided for available/requested/reserved/connected capacity and the electrical dependency from its transmission electrical node. |
| API Availability | Not Applicable |
| Grid hosting capacity downloadable & format | Information can be either visualised in a map or downloaded in PDF table format. |
| Update Frequency | Monthly |
| Available language | National language(s) + others including English |
Hosting capacity assessment
| Capacity type considered for available hosting capacity information (e.g., Firm and/or Flexible) | Firm |
| Description of what firm capacity means | Regulatory definition: Firm or ordinary access capacity is the maximum active power that can be supplied with guaranteed service during all hours of the year. |
| Description of the aspects/methodology that leads to firm capacity results | Regarding the methodology leading to firm capacity results, there is a regulatory body that enforces 1) the scenario for the assessment and 2) the range in voltage variations and maximum current per element. Furthermore, there is a regulatory body that enforces the coordination between agents and the deadlines for communications. |
| Description of what flexible capacity means (if applicable) | Regulatory definition: Flexible access capacity refers to the situation where the requirements associated with firm or standard capacity are not fully met because supply cannot be guaranteed during all hours of the year, as one or more specific criteria are not satisfied as a result of the capacity analysis. |
| Description of the aspects/methodology leading to flexible capacity results | The flexible capacity calculation is assessed in each HV node using the same market scenario as the one used in firm capacity calculation. The only difference arises from the fact that the network scenario in N-1 calculations allows up to 10% of hours of unfulfillment (non-compliance). |
| Description for the criteria and methodologies used that lead to the published information | Every month, DSOs organise the received applications and evaluate, in aggregate, the plausibility of accommodating them in the distribution network. Based on this analysis, DSOs publish the available network capacity. |
| Main assumptions/disclaimers behind calculations | The main assumption/disclaimer is that the publicly available capacity information is useful for evaluating its evolution over the year, although it does not guarantee availability for any specific application |
Additional information for connection request and hosting capacity information
| Connection request procedure | Connection requests are intrinsically linked to access requests, such that the fulfilment of both leads to the issuance of an access and connection permit. |
| Available options for the investors if the map shows “no capacity available” in their interested area | The capacity map is intended to provide general information indicating the likelihood of sufficient capacity. The only way to obtain the available capacity for a concrete project is by applying through the regulated web platform. |
| Connection request rules/principles | First come, first served |
| Information published for volumes of connection requests/waiting lines | Not Applicable |
| Granularity of published connection requests/waiting lines (e.g., nodal, regional, per SO) | Nodal/provincial/region (Comunidad Autónoma) |
Relevant references/Links/Additional material
BOE-A-2020-17278 Real Decreto 1183/2020, de 29 de diciembre, de acceso y conexión a las redes de transporte y distribución de energía eléctrica: https://www.boe.es/buscar/act.php?id=BOE-A-2020-17278
BOE-A-2024-20760 Circular 1/2024, de 27 de septiembre, de la Comisión Nacional de los Mercados y la Competencia, por la que se establece la metodología y condiciones del acceso y de la conexión a las redes de transporte y distribución de las instalaciones de demanda de energía eléctrica. https://www.boe.es/buscar/act.php?id=BOE-A-2024-20760
BOE-A-2021-904 Circular 1/2021, de 20 de enero, de la Comisión Nacional de los Mercados y la Competencia, por la que se establece la metodología y condiciones del acceso y de la conexión a las redes de transporte y distribución de las instalaciones de producción de energía eléctrica. https://www.boe.es/buscar/act.php?id=BOE-A-2021-904
BOE-A-2024-13823 Resolución de 27 de junio de 2024, de la Comisión Nacional de los Mercados y la Competencia, por la que se establecen las especificaciones de detalle para la determinación de la capacidad de acceso de generación a la red de transporte y a las redes de distribución. https://www.boe.es/buscar/act.php?id=BOE-A-2024-13823 BOE-A-2024-13823 Resolución de 27 de junio de 2024, de la Comisión Nacional de los Mercados y la Competencia, por la que se establecen las especificaciones de detalle para la determinación de la capacidad de acceso de generación a la red de transporte y a las redes de distribución. https://www.boe.es/buscar/act.php?id=BOE-A-2024-13823