Why Sunprime's 100 MWp Starlight Buy Shows Italian Solar Development Has Split in Two

Sunprime has acquired 11 ready-to-build photovoltaic projects totalling approximately 100 MWp in Italy from Starlight, the renewable asset development platform of NextEnergy Group. All the assets are fully permitted and ready to enter construction. The transaction completes the transfer of an Italian platform of more than 300 MW that Starlight built over six years, and it is the first acquisition under Sunprime's Sophocles plan, a programme targeting 500 MWp by June 2027 whose construction phase is already backed by €507 million of bank financing. Terms were not disclosed. Two companies here are doing two entirely different jobs, and that separation is the story.

What did Sunprime acquire from Starlight?

Sunprime acquired 11 photovoltaic projects totalling around 100 MWp, averaging roughly 9 MWp each and located across Italy, all at ready-to-build status following a full development process led by Starlight covering land scouting, design and primary and secondary permitting. Part of the portfolio has already been awarded under the FER-X contract for difference mechanism, with incentivised revenues guaranteed for the contract term, while the remaining projects are candidates for future FER rounds and the Energy Release mechanism. The consideration was not disclosed. Enerdatics' benchmark for Italian ready-to-build solar since the start of 2023 puts the developer premium at a median of $0.14 million per MW within an interquartile range of $0.11 million to $0.16 million, which indicates roughly $11 million to $16 million for a portfolio of this size.

What does ready-to-build mean, and why buy at that stage?

Ready-to-build means a project has cleared every pre-construction gate, holding land rights, grid connection and both primary and secondary permits, with only procurement and construction left to complete. In Italian solar the permitting stage is where projects fail, since primary and secondary consents run through regional and national authorities on timelines that resist forecasting. Buying at ready-to-build removes that uncertainty entirely and replaces it with a defined construction schedule. The trade-off is price, because a permitted project costs more than a pipeline position, and the developer keeps the margin earned for absorbing the permitting risk. For a buyer with committed construction finance and a fixed delivery deadline, paying that premium is rational: the alternative is holding capital against a permitting process that may not conclude in time to use it.

Why is Starlight selling an entire platform it spent six years building?

Because monetisation was always the point. Starlight has now reached 1 GW of solar and battery projects monetised out of 1.3 GW fully permitted over six years, a development rate of roughly 50 MW a year on the Italian platform alone, and it continues in Italy with a further pipeline of about 1.2 GW across solar, wind and storage. The company develops and sells rather than owns. Enerdatics records seven NextEnergy Group transactions, most of them sales out of the NextEnergy Solar Fund in the United Kingdom, including 100 MW to Atrato Onsite Energy in March 2026, 35.22 MW to Downing for $35.5 million in June 2024 and 149 MW of Italian solar to an undisclosed buyer in January 2022. Selling the completed Italian platform to fund the next 1.2 GW is the same model applied at platform scale.

Enerdatics' data shows how thinly this segment prices and how few buyers operate at Sunprime's cadence. Across 30 Italian ready-to-build solar transactions recorded since the start of 2023, 24 carry no disclosed value or capacity, leaving just $93.8 million of visible consideration across the entire slice. The buyer field in Italian solar is led by Zenith Energy with 20 acquisitions covering 216.69 MW since the start of 2024, followed by Bluefield Solar, Iberdrola and Sonnedix on three each, drawn from a 90-deal slice. That distribution is telling: Zenith's average transaction is under 11 MW, and most Italian solar buyers transact once or twice. A programme acquiring 500 MWp inside two years would place Sunprime among the most active buyers the market has, and it has 400 MWp still to buy.

What does the deal signal for Italian solar?

The deal signals that Italian solar has separated cleanly into a permitting business and a construction business, and that both now have committed capital behind them. Starlight originates, permits and sells. Sunprime finances, builds and operates, with €507 million already syndicated for the construction phase and €861 million raised in total from the European Investment Bank, Natixis, Kommunalkredit Austria, KfW IPEX-Bank and Nord LB. Neither is attempting the other's job, and the handover point is ready-to-build. That specialisation is what makes a 500 MWp programme credible on a two-year clock, because Sunprime does not need to originate anything, only to buy permitted assets faster than it builds them. The FER-X awards matter here too, since a contract for difference converts a construction-stage asset into contracted revenue, which is precisely what a bank syndicate needs to see.

The constraint is supply. Sunprime is targeting a further 400 MWp of permitted Italian projects by June 2027, at medium voltage principally but with interest in high voltage, and Enerdatics records only 30 Italian ready-to-build solar transactions in three and a half years. Starlight's remaining 1.2 GW is one obvious source, and chief executive Antonio Mazzitelli has said the company is assessing portfolios and individual projects alike. Whether enough permitted capacity reaches the market on that timetable is the open question, and if it does not, the developer premium in Enerdatics' data has room to move upward.

Key takeaways

• Sunprime acquired 11 ready-to-build photovoltaic projects totalling approximately 100 MWp in Italy from Starlight, NextEnergy Group's development platform. Terms were not disclosed.
• Enerdatics puts the developer premium for Italian ready-to-build solar at a median of $0.14 million per MW since 2023, within a $0.11 million to $0.16 million interquartile range, indicating roughly $11 million to $16 million for 100 MWp.
• The transaction is the first under Sunprime's Sophocles plan, which targets 500 MWp by June 2027 with the construction phase already financed by a €507 million banking pool.
• Starlight has now monetised 1 GW of solar and batteries out of 1.3 GW fully permitted over six years, and continues in Italy with a pipeline of approximately 1.2 GW across solar, wind and storage.
• Enerdatics data shows 24 of the 30 Italian ready-to-build solar transactions recorded since 2023 carry no disclosed value, leaving just $93.8 million of visible consideration across the whole segment.

Frequently asked questions

How much did Sunprime pay for the Starlight solar portfolio?The consideration was not disclosed. Enerdatics records 24 of the 30 Italian ready-to-build solar transactions logged since 2023 as carrying no disclosed value. The segment's developer premium runs at a median of $0.14 million per MW within a $0.11 million to $0.16 million interquartile range, indicating roughly $11 million to $16 million for 100 MWp.

What does ready-to-build mean for a solar project?Ready-to-build means the project holds land rights, grid connection and all primary and secondary permits, leaving only procurement and construction. In Italy the permitting stage carries the greatest risk of failure or delay, so buying at this point removes development uncertainty and replaces it with a defined construction schedule.

What is the Sophocles plan?Sophocles is Sunprime's investment programme targeting 500 MWp of photovoltaic capacity and battery storage by June 2027, spanning medium and high voltage connections. Its construction phase is financed by a banking pool totalling €507 million, and this 100 MWp acquisition from Starlight is its first building block.

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