The world installed 174GW of solar in 2021 and is on track to deploy 260GW by end of 2022 – IEA

Facebook
Twitter
LinkedIn
Reddit
Email
The level of solar deployment across the world continues to ramp up but is still behind where countries need to be to meet their climate targets. Image: Sol Systems.

The world installed around 174GW of solar PV in 2021, a 20% jump on the previous year, and is expected to deploy 260GW this year, barring any major disruptions to international trade.

Those, among many others, were the findings of the International Energy Agency’s (IEA) Trends in PV Applications 2022 report, which also examined solar installations across different countries and regions as well as the key drivers for growth.

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

The report showed how 2021 witnessed the total business value of the global solar PV sector in 2021 reach US$190 billion, with 174GW installed in that year. This takes global capacity to just shy of 1TW – 946GW as of the end of 2021. World PV installations surpassed 1TW in March this year, according to some measurements.

The IEA report said the figure of 174GW represented the “minimum capacity installed” during 2021 with “a reasonably firm level of certainty”.

“This level is the highest ever recorded for PV installations, despite the pandemic related perturbations which have delayed market development in several countries,” said the IEA, noting that the true impact of the pandemic was hard to quantify given many projects were pushed back to later in the year.

The report mapped the installation of PV deployment over the last 10 years, showing a massive growth in solar activity across the world but particularly the countries in its report.

The IEA participating countries are Australia, Austria, Canada, Chile, China, Denmark, Finland, France, Germany, Israel, Italy, Japan, Korea, Malaysia, Mexico, Morocco, the Netherlands, Norway, Portugal, South Africa, Spain, Sweden, Switzerland, Thailand, Turkey, and the US.

“PV development is now widespread across all continents, though Africa and some parts of Latin America, Europe and Asia are yet to embrace the solar-driven energy transition. 2021 closed with a record number of new countries installing significant numbers of PV,” noted the report.

The evolution of cumulative PV installations across the world. Source: International Energy Agency

The top five regions for PV deployments in 2021 were China with 54.9GW installed, the European Union (28.7GW), the US (26.9GW), India (13.4GW) and Japan (6.6GW). Most of those regions, however, have seen significant transformations to their PV landscapes since last year.

China has called on its dominant PV sector to develop more “strategic alliance”. The US has passed its US$369 billion landmark Inflation Reduction Act (IRA) which looks set to turbocharge its solar industry. India has launched a production linked incentive scheme to support its domestic PV manufacturing sector. Japan’s large-scale PV pipeline, on the other hand, is “drying up” after a recent tender attracted very little interest.

That said, installations not financially supported and developed outside of tenders have been observed in an increasing number of countries in 2021.

“The growing competitiveness of solar PV electricity has also boosted the share of PV installations operating under self-consumption without any financial support mechanism,” the IEA said.

PV penetration per capital. Source: IEA.

Read Next

November 4, 2026
Array Technologies and Shoals Technologies Group have agreed to combine in a stock-for-stock merger, creating an integrated energy infrastructure platform spanning structural and eBOS solutions for utility-scale solar PV and battery storage.
November 4, 2026
rPlus Energies has closed a revolving credit facility of up to US$450 million to support its project pipeline across the American West.
November 4, 2026
Numerous solar technology and installation companies globally have seen their stocks surge off the back of the Democrats' victories in the US midterm elections.
November 4, 2026
Chinese PV manufacturer Trina Solar has emphasised that a reported divestiture of its solar tracker business is in the preliminary stages..
November 4, 2026
Maryland-based IPP Sunraycer Renewables has acquired two utility-scale solar projects with a combined capacity of 325MWac from Apricus Energy.
November 3, 2026
Waaree Solar Americas has commenced commercial production on two 800MW solar module manufacturing lines at its Brookshire facility in Texas.

Upcoming Events

Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye