Photovoltaic growth: O&M market reaches 348 GW in 2025

The growth of photovoltaics is also fueling an increasingly important market downstream of the installation of systems: that of management and maintenance services (Operations & Maintenance, O&M). At the end of 2025, according to data from Wood Mackenzie's new Global Solar PV O&M Service Provider Dynamics 2026, PV capacity surveyed globally reached 348 GW, an increase of 61 GW in just one year.

The study - which analyzes over 130 operators active in the Americas, Asia-Pacific (excluding China), Europe, the Middle East and Africa - highlights that growth is going hand in hand with rapid market consolidation. The 15 largest global operators added a total of 41 GW in 2025, bringing their portfolio to 200 GW and controlling 57% of the total capacity analyzed.

NovaSource Power Services remains at the top of the ranking, with 38.4 GW under management, followed in the group of top five operators by Res Energy Global Services, Solv Energy, Solarig Energy Services and Recurrent Energy.

But the dynamics change from one region to another. In North America, explains Wood Mackenzie, the maturity of the sector and high competition are reducing costs and strengthening independent operators. In the Middle East and Africa, however, volumes have almost doubled and new players are entering a market that is still relatively underdeveloped.

Among the most significant performances of 2025 is that of Engie, which more than doubled its O&M portfolio and surpassed six competitors, reaching eighth place in the world. The growth was mainly driven by the Americas, where the capacity managed by the group increased by 172%.

Sterling & Wilson is also expanding strongly, rising to sixth place in the world after growth of 53%, up to 13.5 GW. Of these, 12.2 GW are concentrated in Asia-Pacific, where the company leads the market.