Inverter failure and auction prevalence pressuring solar O&M costs, report finds

Facebook
Twitter
LinkedIn
Reddit
Email
Image: Lightsource BP.

Inverter failures and the prevalence of auction-based mechanisms for large-scale solar projects are placing pressure on solar operations and maintenance (O&M) prices, a new report from Wood Mackenzie has found.

New research compiled by the analysis firm suggests that solar’s aging fleet will present numerous challenges to O&M, a factor which will be further compounded by project auctions placing further pressure on costs as developers look to save on project OpEx.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Wood Mackenzie forecasts that solar assets running into premature failures will rise from ~4.2GWdc this year to 36GWdc by 2025 as a growing number of plants pass ten years of operational life. Around 100GWdc of operational solar will be more than ten years’ old by 2025, Wood Mackenzie has found.

By that time, nearly 227GWdc of solar systems will be approaching inverter end of life, representing a significant opportunity for those either repowering or maintaining projects moving forward.

But O&M prices are set for additional pressure owing to the widescale adoption of auctions driving the levelised cost of electricity (LCOE) down which, in turn, will place greater emphasis on price-based competition in the O&M sector, as principal analyst Daniel Liu explained.

“Developers and asset owners are exploring methods along the value chain to reduce overall costs, assuming more risk. In the O&M sector, this will happen through partnerships with different players oriented to a hybrid structure,” Liu said.

Such pressure could lead to certain works – panel cleaning, corrective maintenance and landscape management – being omitted from contracts as asset owners pursue an “a-la-carte service structure” rather than all-in service contracts.

Accelerated consolidation

Meanwhile, Wood Mackenzie’s report also paints a picture of a global O&M market that continues to consolidate. According to the research firm’s analysis, the top 15 vendors increased their market share from just over half (51%) to 54% last year, with Spain’s growing solar market experiencing the most significant consolidation. At the end of last year, the top five O&M providers in the country held 71% of the market, up 9% year-on-year.

Only Germany, the UK, the US and France witnessed no real consolidation, the analysis shows.

And this trend looks set to continue, with vendors listed in places 16 – 30 experience lower growth rates than the top 15, indicating that the leading players are increasing their hold on the market.

Read Next

August 3, 2026
A US court has upheld a FERC plan to speed up the permitting process for connecting energy projects to the grid.
August 3, 2026
According to the Silicon Industry Branch, the average price of n-type G10L monocrystalline wafers dropped 3.61% month-on-month.
Premium
August 3, 2026
Australia's National Electricity Market recorded a combined 3,320GWh of solar generation in July 2026, comprising 1,448GWh from utility-scale assets and 1,872GWh from rooftop systems.
August 3, 2026
Trinasolar has been selected to supply solar modules for the Good Earth Green Hydrogen and Ammonia project in New South Wales, Australia.
July 31, 2026
FIC has acquired Perfect Power, developer and owner of the Jaguar Energy Centre, a planned 1.15GW solar and battery storage platform.
July 31, 2026
Avaada has secured approximately US$1.3 billion in debt to fund a 2.15GW portfolio of hybrid and solar projects in Gujarat and Maharashtra.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
April 20, 2027
Istanbul, Türkiye