The University of Malaga has launched a project that goes far beyond simply installing solar panels on rooftops. Its aim is to create a photovoltaic energy ring capable of powering the entire campuscoordinating generation, consumption and storage to achieve electrical self-sufficiency and reduce to zero the emissions associated with the light used by the institution.
This energy ring will rest on a large internal medium voltage microgrid This will connect the UMA buildings through a massive deployment of solar panels and a high-capacity battery system. All of this will be managed under an innovative architecture designed to make the university function as its own energy ecosystem, almost independent of the external grid.
UMA photovoltaic energy ring: what it consists of
The heart of the project is a medium voltage electrical ring which will link the various university facilities and allow photovoltaic energy to circulate throughout the campus according to the needs of each moment. Instead of each building operating in isolation, the system will create a cooperative internal network in which the surpluses of some centers will be used to cover the deficits of others.
This ring is integrated with a distributed photovoltaic field which, once completed, It will exceed 15 MWp of installed powerThe forecast is that annual production will exceed 28 GWh, above the approximately 25 GWh consumed today by the entire UMA, which will allow 100% of the annual electricity demand to be covered through shared self-consumption.
The Malaga-based company GSL (OSI UTE), parent company of the Solar Lighting Group, has been awarded the contract for the supply, installation and operation of the photovoltaic and storage systemThe agreement, valued at around 42,2 million euros and with a total execution and operation period of more than a decade, makes the photovoltaic ring one of the most ambitious university self-consumption projects in Spain.
The infrastructure has been designed to serve a community of more than 35.000 students and 4.000 workersThe area is spread over nearly two million square meters, of which more than 400.000 are built-up. The predominantly daytime consumption pattern is particularly well-suited to solar power generation and favors the direct use of the electricity produced by the panels.
Another key aspect of the photovoltaic energy ring is that it is conceived as shared self-consumption among all centersSo, not only are panels installed on the roofs, but the way the campus buys, generates and distributes energy is reorganized, moving from a purely consumer model to a producer and manager one.
Solar Architecturalism: three levels to organize the energy ring
The technical solution that shapes the photovoltaic energy ring is based on the concept of “Solar Architecturalism”A hierarchical architecture organizes the system into three priority levels. This structure allows the campus to function as a whole, while still ensuring that each building has its own capacity to generate and manage energy.
At the first level, known as Priority 1 or “The cell”Each building is designed as a self-sufficient energy unit. The panels installed on its roof produce electricity that is consumed immediately where it is generated, always prioritizing local self-consumption. The goal is for each center to minimize its dependence on the internal grid and, of course, on the external grid.
The second level, the Priority 2 or “The circulatory system”This comes into play when a building produces more energy than it needs. Instead of feeding that electricity directly into the main grid, the surplus is channeled through the medium-voltage ring to power other buildings on campus that are experiencing a deficit. In this way, the internal microgrid acts as a circuit that distributes solar energy to where it is needed.
La Priority 3, focused on stability and storageIt activates when neither local nor shared consumption can absorb all the instantaneous generation. It is then that the surplus energy is directed to the battery system, which stores those kilowatt-hours to release them later, either during periods without sun or when there are occasional peaks in demand.
This three-layered approach transforms the UMA photovoltaic energy ring into a true smart microgridFirst, the energy is harnessed where it is produced, then it is shared within the campus, and only as a last resort is it stored in batteries, minimizing losses and optimizing overall operation.
A battery system that stabilizes the campus microgrid
To ensure the photovoltaic energy ring functions reliably in any scenario, the UMA will integrate a 9 MW power storage system with 30 MWh usable capacityThese batteries are not just for storing energy; they are destined to play a central role in the stability of the entire internal university network.
The key is in the technology “grid-forming” with which the system will operate. Unlike other models where the battery simply follows the grid conditions, in this case it will be able to Mark the voltage and frequency reference of the medium-voltage ring. In practice, it will act as the “master” of the microgrid, similar to what a conventional power plant does, but on a campus scale.
Thanks to this scheme, the UMA photovoltaic ring will be able to to continue functioning stably even if there are disturbances or outages in the external networkThe batteries will absorb generation peaks when there is high solar radiation and low demand, and will also compensate for consumption peaks at critical times, such as in laboratories, research equipment or computer systems that cannot afford interruptions.
The combination of panels, a medium-voltage ring, and storage makes it possible for the university to move closer to a scenario of operational self-sufficiencyThe general network becomes a backup, not the main source, and the campus gains resilience against price fluctuations and supply problems outside its premises.
Cost savings and transition to a decarbonized campus
The deployment of the photovoltaic energy ring not only has an environmental impact. From a financial point of view, the operation represents a structural change in the electricity bill of the UMAIn 2023, the university paid around 9,3 million euros for its energy consumption, a figure that had already been reduced to 5,08 million in 2025 thanks to efficiency measures and more adjusted contracts.
With the new shared self-consumption system now operational and the photovoltaic ring at full capacity, forecasts indicate that the Annual spending will decrease to around 3,3 million eurosOnce the initial investment is recouped, the recurring cost could stabilize at around one million euros per year, primarily allocated to operation, maintenance and renewal of equipment.
In addition to these direct savings, there are other avenues for economic return, such as possible generation of Energy Saving CertificatesThese certificates, considered as an evaluable improvement in the tender, would allow for the monetization of part of the reduction in consumption and emissions, reinforcing the project's viability in the medium and long term.
In parallel, the progressive replacement of electricity from fossil fuels with domestic solar energy fits with the objectives of Integrated National Energy and Climate Plan (PNIEC) 2021-2030 and with the European climate neutrality strategy. The UMA thus aspires to consolidate itself as a 100% decarbonized campus in electrical terms, which positions it as a benchmark in the Spanish university field in matters of sustainability.
The role of GSL and the scope of the project for the university community
The implementation of the photovoltaic energy ring and the entire associated microgrid falls to GSL (OSI UTE), a Malaga-based group specializing in renewablesThe company has over 1 GW of developed or built photovoltaic and wind power projects, plus another gigawatt in storage systems, with a presence in both Spain and several Latin American countries.
This experience in large generation facilities and in solutions of advanced self-consumption and storage It has been a determining factor in tackling a project as complex as that of the UMA, where the combination of buildings, schedules, laboratories and specific uses requires a tailor-made design.
For the university community, the photovoltaic energy ring is not merely an “invisible” infrastructure. Beyond guaranteeing supply, the system opens the door to new lines of research and training in fields such as microgrids, smart demand management, storage, or the integration of renewable energies in urban environments.
The university will be able to use its own campus as living laboratoryThis facilitates internships, final year projects, and research work linked to the actual operation of the energy ring. This strengthens the connection between the energy transition and teaching and scientific activity, and places the University of Malaga (UMA) in an advantageous position to participate in European initiatives related to the decarbonization of educational buildings and infrastructure.
With all these elements, the photovoltaic energy ring of the University of Malaga is configured as a pioneering model of university microgrid in Spain, which combines electrical self-sufficiency, internal grid stability, economic savings and alignment with European climate objectives, while turning the campus itself into a practical learning space about the energy of the future.