Hera develops renewable power supply for Leonardo
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Hera develops renewable power supply for Leonardo

On 13 October, Hera outlined its earlier-awarded €73.5 million concession for a proposed agrivoltaic energy park serving Bologna’s Leonardo supercomputer. Construction and generation have not begun; completion in 2029 remains…

Hera develops renewable power supply for Leonardo
Summary
  • On 13 October, Hera disclosed details of a €73.5 million concession awarded earlier in 2026 for the proposed Energy Park.
  • The proposed Bologna Energy Park includes a 30-hectare agrivoltaic area within a larger 90-hectare site.
  • Annual generation of 30 GWh and completion in 2029 are projections; construction and electricity supply have not begun.

Italian multiutility Hera announced details on 13 October of a €73.5 million concession awarded earlier in 2026, linked to a proposed renewable electricity project intended to supply part of the power used by the Leonardo supercomputer in Bologna. The development includes an agrivoltaic facility in the city’s Navile district, around three kilometres from the Tecnopolo complex where Leonardo is operated by the interuniversity consortium CINECA.

The proposed Energy Park covers approximately 90 hectares, with almost 70 hectares described as cultivable land. Around 30 hectares would host an agrivoltaic installation, with photovoltaic panels arranged to permit agricultural activity below or around the structures. Hera projects output of 30 GWh per year once the park is operating at its intended scale.

A project company, Helisa, has been established under Hera’s control to manage the arrangement. The detailed scheme was announced on 13 October, after the earlier concession award. The reporting envisages permitting and subsequent construction during 2027 and 2028, with completion projected for 2029. Construction and electricity generation have not yet begun; the forecast 30 GWh is a projected annual output, not an existing supply figure.

A local generation route for computing demand

Leonardo is a major high-performance computing installation whose electricity requirements include servers, storage, interconnects, cooling, and supporting electrical systems. Pairing it with dedicated renewable generation introduces a different procurement arrangement from relying entirely on electricity purchased through ordinary grid contracts. The physical contribution of the project, however, will depend on the final connection architecture and the timing of generation relative to demand.

Photovoltaic output changes with daylight and weather, while a supercomputer can require electricity outside the hours of solar generation. The project’s reported annual production therefore should not be treated as evidence of continuous round-the-clock supply, a fully renewable energy balance, or a reduction in the supercomputer’s instantaneous grid demand by the same amount.

Italian reporting refers to a dedicated connection to existing systems at the Tecnopolo. Further engineering information would be needed to establish metering arrangements, the role of the public grid, any storage or balancing requirements, and the proportion of Leonardo’s actual consumption covered by the new energy park. Neither the annual output estimate nor the concession value alone supplies those answers.

The site also includes a proposed urban forest with around 4,000 trees and shrubs. Hera presents the wider development as part of Bologna’s climate programme. Those landscaping elements form part of the concession but are separate from the generating equipment and should not be counted as electrical capacity.

The next infrastructure milestones

The area allocated to crops reflects an attempt to combine energy generation with continuing agricultural use. Such projects require detailed design of panel spacing, agricultural operations, access, and maintenance. Those constraints can alter land utilisation compared with a conventional ground-mounted solar plant, but the reporting does not provide a technical design from which independent generation efficiency or yields can be derived.

The Italian source associates operation at scale with avoided emissions of around 7,000 tonnes of carbon dioxide annually. That is a project-side estimate based on a comparison methodology that is not fully disclosed in the reporting, rather than measured emissions avoided by a completed facility.

The connection distance of approximately three kilometres makes the project geographically local, but distance alone says little about the electrical interface. The generating site and computing facility may use the network differently at different times of day. Verifying the claimed renewable contribution will require metered generation, the mechanism allocating that energy to Leonardo, and transparent treatment of power imported when the solar plant is not producing.

Leonardo remains operational independently of the proposed park. Its projected 30 GWh a year cannot be counted as current supply: permitting, construction, connection and commissioning would all need to be completed before the planned installation could generate electricity, currently projected for 2029.


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