The US technology company Microsoft has signed a long-term solar power purchase agreement with Zelestra in Aragon, a move that reinforces the region's importance as a strategic hub for digital infrastructure and the energy transition in Europe. The agreement centers around two photovoltaic plants under construction in the province of Zaragoza and extends beyond simply supplying electricity.
In addition to guaranteeing renewable electricity for Microsoft's operations in the region, the agreement incorporates a significant social and environmental component, managed by the Aragonese foundation ECODES. Through a specific program of EU funding, local projects focused on sustainability, economic inclusion, and environmental improvement will be promoted, with special attention to the most vulnerable communities.
A PPA to boost solar energy in Zaragoza
The core of the agreement is a Power Purchase Agreement (PPA) signed between Microsoft and Zelestra, covering the Escatrón II and Fuendetodos II solar projects, both located in the province of Zaragoza. These photovoltaic installations are currently under construction and are part of the renewable energy deployment taking hold in Aragon.
The 95,7 MWac of solar generation capacity from both plants will be used to cover part of the technology company's electricity demand. The fact that the supply comes from new renewable capacity contributes to the effective decarbonization of the electricity system , a key aspect of corporate climate strategies in Europe.
Zelestra has presented this PPA as a strategic alliance in Aragon with Microsoft and ECODES, emphasizing that the agreement not only supports the economic viability of the projects but also demonstrates an explicit commitment to the region's development. This model reinforces the trend of linking large energy contracts with direct benefits for the communities where the facilities are located.
From an energy perspective, the operation aligns with the growing use of long-term bilateral power purchase agreements (PPAs) by large consumers to secure stable prices, reduce exposure to market volatility, and advance their emissions reduction targets. In Microsoft's case, the supply from these plants will help support its energy consumption, including that of data centers and cloud services.
Community funds managed by ECODES
One of the key features of the agreement is the implementation of a community benefits initiative channeled through ECODES, a non-profit organization based in Aragon. This entity will be responsible for managing the financial resources associated with the PPA, which are earmarked for social and environmental projects in the region.
In practice, ECODES grants and supports community-led sustainability projects. These Community Funds will be used to expand access to sustainable infrastructure, promote healthy environments, and strengthen the social and economic fabric of areas near solar plants.
The organization has announced that vulnerable communities will receive a significant portion of the resources, with the aim of ensuring that the ecological transition does not exacerbate existing inequalities and, on the contrary, creates opportunities in terms of employment, training, and basic services. This approach aligns with ECODES' work on a just ecological transition in Spain.
The funds will also be used to strengthen the capacities of local organizations that provide services to the community, helping them develop resources, improve their resilience, and increase their impact. The aim is to create a multiplier effect: not only to finance isolated projects, but to consolidate a network of entities with more tools to support the changes brought about by decarbonization.
Zelestra's 3E strategy and the vision of a just transition
For Zelestra, this collaboration is part of its 3E strategy (Education, Energy, and Environment) , which outlines the company's roadmap for social investment wherever it operates. The company aims to ensure that renewable energy deployment translates into tangible improvements for the regions, extending beyond electricity generation.
Within this framework, priority is given to initiatives linked to green skills , support for energy efficiency and environmental protection projects, as well as actions that promote territorial balance. Aragon, with its growing penetration of renewable energy and increasing importance in the digital economy, has become an ideal testing ground for these types of programs.
ECODES, for its part, frames the project within its mission of a just energy transition . The organization emphasizes the need to listen to local stakeholders—municipalities, neighborhood associations, SMEs, and social groups—so that they can set priorities and define the most effective interventions in each area.
These types of collaborative schemes between energy companies, large technology consumers, and social organizations are increasingly gaining solid social license in Europe when it comes to large infrastructure projects linked to digitalization and clean energy. The goal is to minimize resistance, distribute benefits more equitably, and ensure that renewable energy deployment maintains a strong social license in the medium and long term.
Microsoft's commitments to decarbonization and data centers
From the tech side, the PPA with Zelestra helps advance Microsoft's global carbon-negative goals . The company aims not only to reduce its direct emissions but also to offset and remove more carbon than it emits, and renewable energy is a key component of this.
The agreement also falls within Microsoft's Data Center Community , which aims to ensure that the deployment of digital infrastructure is carried out responsibly and generates tangible benefits in the areas where these facilities are located. In regions like Aragon, where the company's presence is growing, the integration of clean energy and social programs is considered key.
Microsoft emphasizes that, as it increases its footprint in Aragon, its intention is to support the sustainability of the local community . In this sense, the alliance with Zelestra and ECODES is presented as a concrete tool to materialize these commitments and not remain merely as generic declarations of corporate responsibility.
Through contracts like this PPA, the technology company reinforces the idea that supplying energy with renewables is possible for the energy demand associated with digital growth, reducing the climate footprint of services such as cloud computing, artificial intelligence or data storage, which are increasingly important in Europe.
Voices of the protagonists and scope for Aragon
At the presentation of the agreement, Zelestra's Director of Sustainability and Stakeholder Relations, Scarlett Álvarez Uzcategui , emphasized that the collaboration with Microsoft and ECODES aligns perfectly with the company's commitment to generating a positive impact wherever it operates. She also underscored Zelestra's long-term commitment to Aragon and the expectation that the program's benefits will have a lasting effect on the communities surrounding the projects.
From ECODES, Cecilia Foronda , head of Action for a Just Ecological Transition, described the initiative as a "unique opportunity" to accelerate progress towards a green, inclusive, and responsible economy in Aragon and the rest of Spain. She emphasized the importance of listening to local stakeholders to ensure that resources reach those who need them most and to strengthen social participation and territorial balance.
On behalf of Microsoft, Eoin Doherty , Vice President and EMEA Regional Leader for Cloud Operations and Innovation, emphasized that the company's increased presence in Aragon is accompanied by a firm commitment to the community. He stated that the collaboration with Zelestra and ECODES is central to achieving their clean energy goals in a way that will provide lasting benefits to the region.
Together, the three entities have presented the alliance as a model of public-private cooperation , where the private sector assumes an active role not only in energy investment, but also in the social and environmental transformation of the territories where it operates. For Aragon, this type of agreement reinforces its position as a leader in renewable energy and as an attractive location for the implementation of major technology projects.
The combination of a 95,7 MWac solar power PPA, ECODES' management of EU funds, and Microsoft and Zelestra's commitment to decarbonization goals paints a picture of a future where the expansion of the digital economy and the green transition are advancing hand in hand in Aragon. The challenge now lies in defining, with local participation, which social and environmental projects will be implemented and how their long-term impact will be assessed.