Acciona and IGNIS have joined forces to develop a new data center in the province of Segovia, paired with an adjacent photovoltaic plant meant to supply renewable energy to the complex. The deal runs through Ignis Data Epta, a company both now hold a 50% stake in, deepening Acciona’s move into a market where power availability has become one of the main factors for getting new projects off the ground.
The Segovia data center in 20 seconds
- Acciona has taken a 50% stake in Ignis Data Epta and shares the project with IGNIS.
- The future data center will be backed by an adjacent photovoltaic plant.
- Access and grid connection permits had already been processed by companies linked to IGNIS.
- Acciona aims to develop a portfolio of up to 2 GW in data centers.
- IT capacity, investment, exact location, and opening date haven’t been disclosed yet.
The partnership is interesting because it combines two increasingly inseparable infrastructures from the start: computing capacity and energy availability. New data centers, especially those built for AI workloads, need large amounts of electricity and connections that can support significant power growth.
Here it’s worth separating photovoltaic generation from the continuous supply a data center needs. A solar plant can cut the power drawn from other sources during daylight, but on its own it doesn’t provide power around the clock. The project will still depend on its grid connection and, depending on the final design, could add other energy management tools.
Acciona takes a 50% stake in the Epta project
The project runs through Ignis Data Epta, a company set up in 2024 that until now was fully owned by Ignis P2X.
Ignis P2X is itself a platform owned 50% by IGNIS and the investment fund KKR. Official corporate documents lay out that structure and the platform’s focus on new energy infrastructure projects.
With this deal, Acciona has taken a 50% stake in Ignis Data Epta, while IGNIS keeps the other 50%. The agreement also includes jointly acquiring the photovoltaic plant next to the future data center.
The permits for grid access and connection had already been obtained through two companies affiliated with IGNIS.
That’s an important detail, because having enough land to build a data center no longer guarantees the project happens. Real access to electric power has become one of the most valuable assets in this market.
The spread of large computing facilities for cloud and AI is pushing developers and operators to check grid infrastructure, substations, power lines, and nearby generation and storage options early on.
Even so, the public information doesn’t yet clear up several key parts of the Segovia project. The exact location, planned investment, IT capacity, solar plant size, and construction and commissioning timeline haven’t been disclosed. It’s also not wise to extrapolate electrical figures from the company’s other developments to this one.
Acciona aims for a 2 GW data center portfolio
The move is part of a wider Acciona strategy to expand into digital infrastructure.
Led by José Manuel Entrecanales, the company aims to develop up to 2 GW of capacity tied to data centers, a business that used to sit inside its Construction division and is now run by a dedicated unit, Acciona Data Centers.
The appeal is clear. The growth of cloud services, digital solutions, and especially AI is speeding up the construction of facilities that need ever more electric power.
GPU accelerator clusters used to train and run AI models have far higher energy density than most traditional IT. That shifts the industry’s focus from just putting up buildings and installing servers to securing enough energy and continuous power for infrastructure that has to run 24/7.
So companies traditionally tied to energy and infrastructure are expanding into this sector.
IGNIS offers exactly the kind of combination that fits this shift. Its model includes grid access and connection, renewable generation, battery storage, long-term power purchase agreements (PPAs), and energy management.
The Segovia project envisions an integrated setup where the energy infrastructure is developed alongside the data center rather than bolted on later.
The Fuenlabrada precedent: 82 MW grid access and a 94 MW solar plant
There’s another project that helps illustrate the model, though its figures shouldn’t be confused with the future Segovia center’s.
IGNIS reached an agreement tied to the campus Apto is developing in Fuenlabrada, Madrid. There, it involves 82 MW of grid access and connection and a long-term PPA tied to a 94 MW photovoltaic facility developed and built by IGNIS.
That plant is estimated to produce about 171 GWh a year, per the project details.
The example shows how part of the Spanish data center market may evolve: first lock in a mix of land, electrical connection, generation, and energy contracts, then deploy the IT capacity.
Spain has an especially favorable renewable resource, but that doesn’t remove one of the main challenges of solar and wind: variability.
A data center needs electricity 24/7, 365 days a year, whatever the sun or wind is doing. So having a photovoltaic plant nearby doesn’t mean the facility runs on solar panels alone.
The grid will still play a vital role, along with storage, PPAs, and other tools that can match production with consumption across different periods.
That energy component can become as critical as the technological design of the center itself.
For Castilla y León, the Segovia project also means a stronger place in Spain’s emerging digital infrastructure, which has traditionally centered on Madrid, with smaller hubs in Barcelona and Aragón.
Proximity to Madrid helps, but the final location and characteristics will need to be clarified before anyone can judge the project’s true scale.
For now, the deal underlines a broader trend: the race to build data centers in Spain is also a race to secure megawatts. Acciona and IGNIS are coming at it from both sides of the same equation, digital infrastructure and energy generation and access.
Frequently Asked Questions
Where will the new Acciona and IGNIS data center be built?
The project will be in the province of Segovia, Castilla y León. The available information doesn’t specify the municipality or the exact site yet.
What power capacity will the Segovia data center have?
The IT capacity of the future complex hasn’t been officially disclosed. It also shouldn’t be confused with the 82 MW of grid access and connection tied to Apto’s Fuenlabrada project.
Will it run on solar energy alone?
No announcement points to running solely on photovoltaic energy. The project pairs an adjacent solar plant with a grid connection, which is essential for a continuous supply.
What are Acciona’s goals in the data center market?
Acciona aims to develop a portfolio of up to 2 GW of capacity as it expands into this sector.
