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

June 22, 2020
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

December 19, 2025
The US House of Representatives has passed a permitting reform bill reducing the environmental scrutiny on large energy projects.
Premium
December 19, 2025
PV Talk: Luminous Energy's Guy Lavarack says that interface risk, grid risk and talent risk are all key risk factors in Europe.
December 18, 2025
Pivot Energy has completed three financing agreements, totalling US$225 million, while CleanCapital has raised US$185 million.
December 16, 2025
The global solar inverter industry will contract over the next two years as major markets in China, Europe and the US confront new volatility, according to energy market analyst Wood Mackenzie.  
December 15, 2025
Spanish renewables developer Acciona Energia has sold a 49% minority stake in a 1.3GW US solar PV project portfolio.
December 15, 2025
Soltec has begun the process of transferring 80% of its share ownership to European investment firm DVC Solutions.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
November 24, 2026
Warsaw, Poland