Solar ‘charging ahead’ but ‘unprecedented’ investment action required, IEA warns

Facebook
Twitter
LinkedIn
Reddit
Email
Image: UniversityBlogSpot/Flickr.

Solar PV is “charging ahead” across the world as it outpaces other renewables, but far more significant action is required if a climate crisis is to be averted, the International Energy Agency (IEA) has warned.

This morning the IEA has released this year’s edition of its World Energy Outlook (WEO), including a mix of worldwide energy trends and forecasts under different models and scenarios.

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

Solar PV, the IEA has said, is “charging ahead” of other renewables in numerous markets and, alongside gas, is “re-shaping” the power sector entirely. IEA forecasts that solar PV capacity will overtake wind by 2025 and coal in the mid-2030s to become the second largest generation technology, behind only gas.

Such a surge in installed capacity is likely to have significant impacts on global generation mixes and, in turn, the entire power sector, thrusting huge importance on flexibility which the IEA has labelled the “new cornerstone” of electricity security.

The IEA has gone so far as to state that changes to the power mix will need to be addressed with “growing urgency” across the global, which will, in turn, require market reforms, more significant investments in national grids and more prolific adoption of demand-side response, smart metering and energy storage technologies.

But of a far starker nature are the agency’s warnings surrounding the pace of clean energy adoption, specifically if the world remains committed to limiting global warming to within two degrees.

In charting projections for electricity generation capacities and demand, the IEA has suggested there remains a significant gap between its forecasts and staying within those climate targets, requiring what the IEA has termed as a “systematic preference” for investments in sustainable energy technologies.

In simple terms, both developing and advanced economies can no longer invest in carbon-emitting power stations if the effects of climate change are to be limited to limited within two degrees.

Fatih Birol, executive director at the IEA, noted that with more than 70% of global energy investments set to be government-driven, the “world’s energy destiny” is intertwined with global politics.

“Crafting the right policies and proper incentives will be critical to meeting our common goals of securing energy supplies, reducing carbon emissions, improving air quality in urban centres, and expanding basic access to energy in Africa and elsewhere,” he said.

While the IEA's absolute figures for solar power deployment have proven far too conservative in the past, the body has the ear of OECD governments adding weight to its overall message..

25 November 2025
Warsaw, Poland
Large Scale Solar Central and Eastern Europe continues to be the place to leverage a network that has been made over more than 10 years, to build critical partnerships to develop solar projects throughout the region.

Read Next

Premium
October 10, 2025
Gaëtan Masson of IEA PVPS warns of overcapacity, collapsing prices and slipping module quality in the new Trends in PV Applications report.
October 10, 2025
The European solar module market has reached a “state of equilibrium” in recent weeks, with stable prices and regular demand.
October 10, 2025
US solar recycling firm OnePlanet has achieved the R2v3 certification from electronics sustainability non-profit SERI, which represents the “highest standards of traceability”.
October 10, 2025
NTPC Renewable Energy Limited has signed an MoU with the Government of Gujarat to develop 15GW renewable energy projects in Gujarat.
October 10, 2025
Australia's renewable energy sector recorded its slowest month of the year for additions in September, with 5.8GW of new projects added to development pipelines, according to data from Rystad Energy.
October 9, 2025
The Australian government has announced the results of the fourth Capacity Investment Scheme (CIS) tender, with 6.6GW of renewables awarded long-term contracts.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK