Data centres / Spain
Data centre projects in Spain
Pipeline projects5123 permitted or being builtChecked 11 Oct 2026
New grid connectionsRationedconcurso de acceso de demanda, in force since 17 Jul 2025. Nationwide, transmissionChecked 12 Oct 2026
Wholesale power price67 €/MWhDay-ahead, 2025 mean, SpainLatest hour €239, 12 Oct 2026, 17:09 UTC
Grid carbon intensity84 g CO2e/kWhLatest hour, estimate; yearly average 15412 Oct 2026, 17:09 UTC
Next EU rule date14 Dec 2026The EU Commission's minimum performance standards consultation and call for evidence closesApplies EU-wide
Latency to nearest major hub11 msRound trip, Madrid to ParisMapped fibre route, minimum
These are the data-centre projects of 5 MW or more in Spain that our pipeline tracker follows: 51 projects, 23 of them permitted or already being built. Projects in the Madrid market have their own page. One national rule shapes new sites here: draft Royal Decree for sites above 1 MW, including hourly matching with additional renewable generation; consultation closed in early September 2026 (proposed).
Largest stated project650 MWProyecto Rhodes data centre campus, planned electrical capacity, first phase
Newest milestoneOct 2026latest check 11 Oct 2026
Projects by stage
- Announced20
- In planning8
- Permitted5
- Under construction17
- Structure complete1
What the capacity figures measure
- IT load9
- Facility, campus or unstated basis18
- First phase only5
- No capacity published19
Each project’s capacity is quoted on its own stated basis, so the figures are never added together.
What changed
23 milestones in the last 90 days. The newest check was on 11 Oct 2026; each row below shows its own.
- Oct 2026AWS second data centre at Walqa reported under construction after the Aragón government approved the building projects in May 2026 Under construction
- Oct 2026Microsoft Aragón data centre campuses (La Muela, Villamayor de Gállego, Zaragoza) earthworks reported under way at several sites, with Microsoft stating construction would start in 2026; a PIGA modification was published in the BOA on 30 July 2026 for public consultation Under construction
- Oct 2026Tillion Aragón data centre campus pIGA approved in July 2026; agreement in principle reached in October 2026 for the town council to withdraw its court appeal against the PIGA, pending formal steps Permitted
- Oct 2026AWS Aragón consolidation sites consolidation projects at DIGA stage; AWS raised its planned Spanish investment to 33.7 billion euros in March 2026 In planning
- Oct 2026Epilon project at DIGA stage in the Aragón regional approval process In planning
Projects
Madrid: 21 projects, 11 permitted or being built. Madrid market page
Elsewhere in Spain 30
| Project | Capacity | Stage and latest milestone | Checked |
|---|---|---|---|
| SP01Alto Infrastructure (formerly Sierra DC)CITAI technology park, Escúzar, Granada, Andalusia | 100 MWgranted gross power (about 70 MW IT)Phase one 10 MW IT and 15 MW gross; 25 MW IT and 40 MW gross before end of 2027 | Under construction Works started on site, Jun 2026Expected: First phase summer 2027; full development end of 2029 | 10 Oct 2026 |
| Bilbao-Arasur 02Merlin PropertiesArasur, Basque Country | 48 MWIT capacity | Under construction Fully let twelve months before delivery; Phase II works progressing as planned, Jul 2026Expected: Developer says the building was pre-let one year before delivery; no delivery date given | 10 Oct 2026 |
| Bilbao-Arasur third buildingMerlin Properties (Merlin-Edged)Arasur logistics platform, Rivabellosa (Ribera Baja), Álava, Basque Country | 48 MWcapacity of the building as stated by the developer (basis not specified)The July 2026 release lists Bilbao-Arasur 01 (48 MW) as let eighteen months before becoming operational; the developer does not state whether this is the same building | Under construction Construction licence obtained in December 2025; construction works started, as reported in the February 2026 annual results, Feb 2026 | 10 Oct 2026 |
| Adam fourth data centre, Cerdanyola del VallèsAdam (CVC DIF)Parc de l'Alba, Cerdanyola del Vallès, Barcelona, Catalonia | 8 MWinstalled powerFirst phase of four rooms with 4 MW of power | Under construction Building permit obtained, earthworks started and foundation stone laid for the new data centre, Nov 2025Expected: Fully operational in 2027 (operator) | 11 Oct 2026 |
| Mediterra BCN01Mediterra DataCentersBarcelona region, Catalonia | 8 MWIT capacity, in 1.3 MW increments; 12 MW power connectionDeveloper page gives 8 MW as installed electricity in 1.3 MW blocks | Under construction Site acquired with permits and power connection; construction started, Feb 2026Expected: Operational in the second half of 2027 | 10 Oct 2026 |
| NxN Valencia data centreNxN Data CentersVara de Quart, Valencia, Comunitat Valenciana | 5 MWpower as stated by the source | Under construction First stone laid and works started, Feb 2026Expected: Opening planned for the first half of 2027 | 10 Oct 2026 |
| AWS Villanueva de Gállego expansionAmazon Web ServicesVillanueva de Gállego, Zaragoza, Aragón | Not disclosed | Under construction Expansion works continuing under the PIGA approved in August 2025; town council filed a second appeal against a later expansion project, Aug 2026 | 10 Oct 2026 |
| AWS second data centre at WalqaAmazon Web ServicesWalqa technology park, Huesca, Aragón | Not disclosedSources give annual consumption of 2,270,600 MWh and 342 MW of diesel generator power, not a capacity figure | Under construction Reported under construction after the Aragón government approved the building projects in May 2026, Oct 2026 | 10 Oct 2026 |
| Microsoft Aragón data centre campuses (La Muela, Villamayor de Gállego, Zaragoza)MicrosoftLa Muela, Villamayor de Gállego and Zaragoza (including the Puerto Venecia site), Aragón | Not disclosed | Under construction Earthworks reported under way at several sites, with Microsoft stating construction would start in 2026; a PIGA modification was published in the BOA on 30 July 2026 for public consultation, Oct 2026Expected: First operational phase within four years of final PIGA approval | 10 Oct 2026 |
| Proyecto Rhodes data centre campusQTS (Blackstone), promoted by Calanza Inmuebles SLCalatorao, Zaragoza, Aragón | 650 MWplanned electrical capacity, first phaseOne report gives 650 MW of planned electrical capacity for the first phase and says the figure includes cooling; the Aragón government release gives no MW figure | Permitted Aragón government gave definitive partial approval of the PIGA covering urbanisation, substation, power lines and water networks; the eight data centre buildings still await environmental assessment; no construction start date set as of October 2026, Sep 2026Expected: First installations to start operating in 2028 and the complex ready within seven years, per the Aragón president's stated condition | 10 Oct 2026 |
| Meta Talavera de la Reina data centre campusMeta (Zarza Networks SL)Torrehierro industrial estate phase two, Talavera de la Reina, Toledo, Castilla-La Mancha | Not disclosed | Permitted Definitive approval of the land reparcelación published in the DOCM; regional government approvals in place for works to start, Aug 2026 | 10 Oct 2026 |
| Tillion Aragón data centre campusAzoraVillamayor de Gállego, Zaragoza, Aragón | Not disclosed | Permitted PIGA approved in July 2026; agreement in principle reached in October 2026 for the town council to withdraw its court appeal against the PIGA, pending formal steps, Oct 2026Expected: Urbanisation works to start at the end of 2026 or during 2027 | 10 Oct 2026 |
| La Puebla de Alfindén data centre campusACS with BenbrosLa Puebla de Alfindén, Zaragoza, Aragón | 150 MWinitial capacity as stated by ACS | In planning Initial approval of the PIGA published in the BOA on 2 December 2025, Dec 2025Expected: Urbanisation works to start at the end of 2026 or during 2027 | 10 Oct 2026 |
| Zaragoza-WIND data centre campusMerlin Properties (Merlin-Edged)Botorrita (Polígono Industrial San Antonio), Zaragoza, Aragón | 144 MWIT capacity, single buildingAragón government also cites guaranteed power of 227.4 MW and possible expansion to 240 MW IT subject to energy availability | In planning Aragón government approved the DIGA (declaration of investment of regional interest) for the campus, Jul 2026Expected: Operation planned for the second half of 2029 | 10 Oct 2026 |
| AWS Aragón consolidation sitesAmazon Web ServicesLa Puebla de Híjar and Azaila (Teruel), Huesca and San Mateo de Gállego (Zaragoza), Aragón | Not disclosed | In planning Consolidation projects at DIGA stage; AWS raised its planned Spanish investment to 33.7 billion euros in March 2026, Oct 2026 | 10 Oct 2026 |
| Bilbao-Arasur 04 and 05Merlin Properties (Merlin-Edged)Arasur logistics platform, Rivabellosa (Ribera Baja), Álava, Basque Country | Not disclosedPart of Merlin Phase III (406 MW IT across several sites); no site figure published | In planning Construction licence requested, Jul 2026 | 10 Oct 2026 |
| EpilonBox2BitÉpila, Zaragoza, Aragón | Not disclosed | In planning Project at DIGA stage in the Aragón regional approval process, Oct 2026 | 10 Oct 2026 |
| Green It AragónSAMCALuceni, Zaragoza, Aragón (associated wind farm upgrades in Pedrola, Plasencia de Jalón and Rueda de Jalón) | Not disclosed | In planning In the PIGA process; committed investment updated to 2,627 million euros after the renewable supply component was added to the processing, Oct 2026Expected: Urbanisation works to start at the end of 2026 or during 2027 | 10 Oct 2026 |
| Vantage Villanueva de Gállego campusVantage Data CentersVillanueva de Gállego, Zaragoza, Aragón | Not disclosed | In planning Campus at DIGA stage in the Aragón regional approval process, Oct 2026 | 10 Oct 2026 |
| DC VillasequillaEdgeMode and Blackberry Alternative Investment Fund (BAIF) joint ventureVillasequilla, Toledo, Castilla-La Mancha | 600 MWplanned capacity | Announced Project added to the EdgeMode and BAIF joint venture portfolio, Jan 2026 | 10 Oct 2026 |
| DC TomellosoEdgeMode and Blackberry Alternative Investment Fund (BAIF) joint ventureTomelloso, Ciudad Real, Castilla-La Mancha | 450 MWplanned capacity | Announced Project added to the EdgeMode and BAIF joint venture portfolio, Jan 2026 | 10 Oct 2026 |
| DC Malpica AI campusEdgeMode with BlackBerry AIFMora, Toledo, Castilla-La Mancha | 300 MWplanned campus capacity across two facilities | Announced Project presented to Castilla-La Mancha officials after a non-binding MoU with Mora city council; developers preparing a regional Priority Project application, Jul 2026 | 10 Oct 2026 |
| Nostrum EvergreenGrupo IngenostrumPlataforma Logística de Badajoz, Badajoz, Extremadura | 300 MWstated project capacityIREN agreed in May 2026 to acquire Nostrum Group (Ingenostrum, S.L.), citing 490 MW of secured grid connected power in Spain; completion subject to closing conditions | Announced Data centre announced by Grupo Ingenostrum for the Plataforma Logística de Badajoz, 2025 | 10 Oct 2026 |
| Solaria Puertollano data centreSolaria Energía y Medio Ambiente with DatasectionPuertollano, Ciudad Real, Castilla-La Mancha | 200 MWmaximum capacity of the planned data centre (up to)Article says the grid operator approved supply of 155 MW for data centres; Solaria seeks to raise this to 1 GW | Announced Memorandum of understanding signed with Datasection to adapt a Solaria plant site in Puertollano for a data centre, Sep 2024 | 10 Oct 2026 |
| Ark Barcelona data centre (La Maquinista)Ark Data CentresLa Maquinista area, Barcelona, Catalonia | 45 MWplanned IT capacity, up to | Announced Ark acquired 30,000 m2 of industrial land in Barcelona for the data centre; timetable and phases not yet detailed, Mar 2026 | 11 Oct 2026 |
| GUA1Nostrum Data CentersEl Ruiseñor industrial estate, Guadalajara, Castilla-La Mancha | 29 MWIT capacity (up to); 40 MWe electrical power already granted | Announced Project presented with Guadalajara city council; 2 hectares of industrial land acquired and 40 MWe of power granted, Feb 2026Expected: Works to start end of 2026; operation during 2028 | 10 Oct 2026 |
| IGNIS Data Epta Segovia data centreIGNIS and Acciona joint venture (IGNIS Data Epta)Segovia, Castilla y León | Not disclosed | Announced Acciona acquired 50% of the project company IGNIS Data Epta; IGNIS had already secured grid access and connection permits for the project, Aug 2026 | 10 Oct 2026 |
| LusitanusFotowatio Renewable Ventures (FRV, Jameel Energy)ExpacioMérida, Mérida, Badajoz, Extremadura | Not disclosed | Announced Land reservation contract formalised for a 240,000 square metre site, Feb 2026 | 10 Oct 2026 |
| Rubix Flix AI data centreRubix Data Centers (Submer Group)Former Ercros plant, Flix, Tarragona, Catalonia | Not disclosed | Announced Project presented at a media event attended by the President of Catalonia and the Catalan business minister; Submer Group said it will invest more than 1 billion euros, Jul 2026 | 10 Oct 2026 |
| Substrate AI Talavera de la Reina developmentSubstrate AI (AI European Infrastructure SOCIMI)Talavera de la Reina, Toledo, Castilla-La Mancha | Not disclosed | Announced Substrate AI set up a real estate investment vehicle whose first development is planned in Talavera de la Reina, Aug 2026 | 10 Oct 2026 |
Formal refusals and bans since 2025
Verified decisions only. Absence is not evidence of low planning risk.
Decisions on single sites
- 11 Feb 2026Madrid Grid access refused at two local substationsOverturned by the energy regulator, Jun 2026; new capacity studies ordered
- 3 Nov 2025Valle de Elorz, Navarre Grid access refused at the local substationPartly overturned by the energy regulator, May 2026; a smaller firm capacity to be offered
- 7 Apr 2025Meco, near Madrid Grid access refused at the local substationUpheld by the energy regulator, Feb 2026
- 27 Jan 2025San Sebastián, Gipuzkoa Grid access refused at two local substationsUpheld by the energy regulator, Jun 2025; a higher-voltage connection point to be offered
- 13 Jan 2025León Grid access refused at the local substationUpheld by the energy regulator, Apr 2025
Decisions from 1 Jan 2025; statuses checked 11 Oct 2026.
Power and grid in Spain
The latest hour, ES bidding zone
Grid carbon intensity (estimate)84 g CO2e/kWhsame hour yesterday 80
Day-ahead price239 €/MWhwholesale, not what a site pays
Renewable share of generation67 %
Best four hours for flexible load13:00Tue 13 Oct to 17:00, local time
Updated 12 Oct 2026, 17:09 UTC; refreshed every 10 minutes. Spain grid hour by hour, next 48 hours
Over a year, country level
Grid carbon, latest full-year average154 g CO2/kWh13th cleanest of 30 countries; 75% renewable or nuclear
Business electricity price, latest full year126 €/MWh8th cheapest of 26; wholesale is 71% of it
Wholesale power, 2025 average67 €/MWh5th cheapest of 30
Annual country averages, as used by the siting cost ranking. Production-based average carbon, not marginal.
Climate at Madrid
Hours a year above 27 °C dry-bulb1,117 hmean of 2016 to 2025
Hours a year above 32 °C dry-bulb441 hworst year 508 h
Hours a year above 20 °C wet-bulb63 hlimit for evaporative cooling
Hourly climate reanalysis at the city’s grid cell, from the market comparison; a site’s own conditions differ.
Fibre latency from Madrid
| To | Round trip, minimum | Path length | Path |
|---|---|---|---|
| Lisbon | 5.2 ms | 536 km | Mapped fibre route |
| Marseille | 10 ms | 1,052 km | Mapped fibre route |
| Paris | 11 ms | 1,149 km | Mapped fibre route |
| London | 12 ms | 1,263 km | Straight line (no mapped land route) |
| Dublin | 14 ms | 1,451 km | Straight line (no mapped land route) |
| Milan | 15 ms | 1,480 km | Mapped fibre route |
| Amsterdam | 16 ms | 1,600 km | Mapped fibre route |
| Frankfurt | 17 ms | 1,712 km | Mapped fibre route |
Light in single-mode fibre between city centres, over the mapped land fibre route where one exists, otherwise the straight line. Operator routes, equipment and the last kilometres add to these floors. Any pair in the latency calculator
Rules and dates
| Where | Rule | Status |
|---|---|---|
| EU | Reporting duty from 500 kW installed IT power, 7 items and 24 indicators, next report 15 May 2027 | In force |
| EU | Waste-heat use above 1 MW total rated energy input, unless a cost-benefit assessment shows it is not feasible | In force |
| EU | Common rating scheme adopted 21 Sep 2026; in Parliament and Council scrutiny, extended 6 Oct | Adopted, not in force |
| Spain | Draft Royal Decree for sites above 1 MW, including hourly matching with additional renewable generation; consultation closed in early September 2026 | Proposed |
Next dates
- 14 Dec 2026the EU Commission's minimum performance standards consultation and call for evidence closes
- 15 May 2027EU database and French reports due every year
From the European data-centre regulation tracker and the market comparison.
Method
The pipeline covers data-centre projects of 5 MW or more, or with no capacity published, that are announced, in planning, permitted or under construction and not yet fully operating. It is not a list of operating facilities. A metro market follows the tracker’s own market field, so it includes the region around the city; a country page covers every tracked project in the country.
- Projects: each row is the latest public milestone we found for the project, with the date it was last checked; the pipeline tracker holds every project.
- Latest hour: carbon intensity estimated from the hourly generation mix, with the day-ahead price, refreshed every 10 minutes on the live grid page.
- Over a year: national averages for the latest full year, the same figures the siting cost ranking uses.
- Climate: hourly reanalysis at the city’s grid cell, 2016 to 2025.
- Latency: light in fibre between city centres over the mapped land route, otherwise the straight line.
Cite as: ScienceShot, “Data centre projects in Spain”, https://scienceshot.com/data-centres/spain/ (checked 11 Oct 2026). © ScienceShot. You may quote individual facts with a link to this page.
ScienceShot dataset, checked 12 Oct 2026. How we build it: Method and standards.