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.
7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.
21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
10 March 2026
Frankfurt, Germany
The conference will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing out to 2030 and beyond.
16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

September 15, 2025
Norwegian energy firm Statkraft has agreed to divest a portion of its renewable energy portfolio to Serentica Renewables.
September 15, 2025
Vikram Solar has secured a contract to supply 200MW of modules to AB Energia, a domestic solar engineering, procurement, and construction (EPC) solutions provider. 
September 12, 2025
ACME Venus Urja has secured INR3.8 billion (US$43 million) to develop and construct a solar-plus-storage project in Barmer, Rajasthan.
Premium
September 12, 2025
Vote Solar's Sean Garren tells PV Tech Premium that Georgia Power's latest IRP is 'skewed so heavily towards fossil fuels'.
September 11, 2025
Madison Energy Infrastructure has raised US$800 million to accelerate the deployment of clean energy assets across the US. 
Premium
September 11, 2025
PV CellTech USA: US cell manufacturer ES Foundry’s CEO Alex Zhu discusses his company's rapid ascent, strategic technology choices and the challenges of operating in a shifting policy environment.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines