IN Brief:
- Galileo has secured consent for another 80MW battery storage project in Italy.
- The project is registered for the second MACSE storage auction scheduled for 24 November 2026.
- Its duration, energy capacity, precise location, and construction timetable have not been disclosed.
Galileo has secured construction and operating consent for a further 80MW battery energy storage project in Italy, adding to the developer’s authorised portfolio ahead of the country’s next dedicated storage procurement round. The company has registered the new project for the second MACSE auction, scheduled for 24 November. Consent and auction registration advance the scheme through distinct development steps, although neither establishes that a capacity contract has been awarded.
Two 125MW developments received approval earlier in October, forming the immediate background to Galileo’s latest 80MW consent. The earlier projects have stated energy capacities of 1,000MWh and 500MWh respectively, giving nominal discharge durations of eight and four hours at their rated power. Their combined specification is 250MW and 1,500MWh. The additional 80MW project is separately authorised and registered for the forthcoming Italian storage auction, with its own electrical design and delivery requirements.
An 80MW power rating describes the proposed rate at which the new battery could deliver electricity, whereas its stored energy would be measured in MWh. Galileo has not stated the latter figure for the new scheme. Battery duration is calculated from those two quantities and then affected in operation by efficiency, usable state-of-charge limits, and availability. The four-hour and eight-hour ratings of Galileo’s earlier developments consequently describe those specific designs and cannot be carried across to the new consent.
Galileo now reports nearly 500MW of consented Italian storage capacity across its wider portfolio. The newly detailed 80MW project and the two previously reported 125MW schemes account for 330MW of that total. The developer’s Italian development pipeline also exceeds 3GW when solar photovoltaics, battery storage, and onshore and offshore wind are considered together. Those figures relate to different project groupings and stages of maturity, rather than a single battery portfolio awaiting construction.
Italy’s second MACSE auction is scheduled for 24 November, procuring 16GWh of storage for delivery in 2029. MACSE is a system for contracting energy storage capacity over an agreed service period. Developers with eligible schemes compete for allocations, with the auction determining which projects obtain the relevant contracts. Galileo’s registration puts the newly authorised 80MW project into that competition, after its development team progressed the site through consent and registered it for the competition.
The 16GWh procurement target describes stored energy, while the approved output of an individual scheme is commonly expressed in MW. In a battery plant, power conversion equipment controls charging and discharging, and the installed battery energy determines how long electricity can be delivered at a given rate. The market mechanism therefore brings together a commercial energy-capacity target with the physical design of each participating project, including its available storage duration, connection limit, and operational controls.
Galileo’s October consents concerned projects in Italy’s North and Centre-South electricity market zones. Different regional generation and demand patterns, together with network transfer constraints, affect where storage can provide flexibility. The developer describes the latest consented projects as strategically located within areas where balancing supply and demand is important. Its public information does not identify the precise location or market zone of the new 80MW scheme, so the earlier regional details remain specific to the original two projects.
Galileo’s Italian team originated and developed the authorised sites, taking them through project selection, engineering and permitting. For a grid battery, those steps must align land permissions and environmental requirements with the proposed electrical connection and the project’s physical layout. Approval allows the developer to advance the next procurement and investment decisions, while the battery equipment, power conversion technology, transformer design, and construction contract still have to be matched to the approved scheme.
If the new project succeeds in the MACSE competition, its contracted storage services would be governed by the auction arrangements and the plant’s eventual technical capability. The outcome will determine the commercial position available through that mechanism, while financing and procurement will shape the route into construction. Galileo has not identified the battery supplier or principal construction contractor for this particular installation. Selection and integration of that equipment will follow the authorised performance and grid connection requirements.
Battery systems can absorb electricity during periods of available generation and return it to the network when requested, supporting the management of variable renewable output. An installation rated at 80MW needs appropriately sized conversion equipment and electrical infrastructure, but the energy volume delivered over a discharge cycle also depends on the installed MWh rating. Network protection, metering, and control systems coordinate the plant’s connection and response. Those specifications will establish the operational services the new Galileo facility can provide after construction.
The 24 November MACSE auction is Galileo’s next public milestone for the 80MW project. Its outcome will establish whether the consented installation obtains a storage contract for the 2029 delivery round. The developer has a wider Italian pipeline spanning several technologies, while the battery projects already authorised have separate construction and equipment programmes ahead. The latest approval adds an eligible scheme to the near-term auction without fixing the date on which it will be commissioned.
