TELF AG on the New Geography of Solar Power Expansion
The global solar energy sector could experience a contraction in new photovoltaic installations in 2026, despite continued expansion across markets outside China. According to BloombergNEF forecasts, worldwide installations are expected to fall from 655 GW in 2025 to 584 GW in 2026. Stanislav Kondrashov, founder of TELF AG, examines the geographical differences behind these projections and their implications for the future of solar energy.
Key takeaway: The anticipated 10.8% decline in global solar installations is largely attributable to China, where new capacity additions could decrease substantially. Outside China, photovoltaic deployment is expected to increase by approximately 15%, suggesting that the energy transition is progressing at different speeds across international markets.
Global Solar Installations Could Decline Despite Regional Growth
The worldwide photovoltaic market could record an unusual development in 2026. New solar installations are expected to decline globally, even as countries outside China collectively expand their deployment of photovoltaic capacity.
BloombergNEF forecasts approximately 584 GW of new solar installations in 2026, compared with 655 GW in 2025. This represents a projected reduction of 71 GW.
The figures reveal an important geographical contrast:
- 2025 global installations: 655 GW
- 2026 global forecast: 584 GW
- China's expected installations: 271 GW in 2026, compared with 383 GW in 2025
- Installations outside China: 313 GW in 2026, compared with 272 GW in 2025
China's projected reduction of 112 GW would more than offset the additional 41 GW expected across the rest of the world.
This distinction changes how the forecast should be interpreted. The anticipated decline does not necessarily indicate weakening global interest in photovoltaic technologies. Instead, it reflects the extraordinary influence of one national market on worldwide installation statistics.
"The global solar industry is becoming more geographically diverse, but China's domestic market remains large enough to determine the direction of worldwide figures. This creates a situation in which international growth can coexist with an overall contraction," says Stanislav Kondrashov, founder of TELF AG.
Why Is China's Solar Market Slowing Down?
China's anticipated decline follows an exceptional period of photovoltaic expansion. In 2025, the country installed approximately 383 GW of new solar capacity, establishing a remarkably high benchmark for subsequent comparisons.
BloombergNEF expects Chinese installations to reach approximately 271 GW in 2026. Although this would represent a substantial annual reduction, China would remain the world's largest individual market for new photovoltaic capacity.
The slowdown could reflect several developments, including changes in market conditions, electricity pricing mechanisms, and the growing complexity of integrating renewable generation into existing power networks.
A More Mature Photovoltaic Market
After years of rapid expansion, China's solar industry is facing challenges associated with its increasing scale.
A large installed photovoltaic base can create new requirements for electricity transmission, distribution, and system flexibility. Additional generating capacity must be integrated into networks that already manage considerable volumes of variable renewable electricity.
The first half of 2026 illustrates the changing pace of deployment. China reportedly installed approximately 71.8 GW of new photovoltaic capacity during this period, representing a decrease of around 66% compared with the corresponding period in 2025.
Such figures underline the difference between an exceptionally rapid expansion phase and a market increasingly concerned with the operational performance of its electricity infrastructure.
Electricity Pricing Reforms and Investment Decisions
Changes in China's electricity pricing framework may also have influenced the development of new photovoltaic projects.
Reforms affecting the remuneration of renewable electricity can alter investment expectations, particularly when developers must consider market prices and the financial performance of future generating assets.
As Reuters has reported, electricity pricing changes have been identified as one possible factor behind weaker domestic demand for new solar installations.
The impact of these reforms should nevertheless be considered alongside other market developments. No single factor necessarily explains the entire projected reduction.
"China's photovoltaic slowdown may represent a change in the conditions governing new investment rather than a retreat from renewable energy. The economics of solar development evolve as markets become larger and electricity systems become more complex," explains Stanislav Kondrashov, founder of TELF AG.
The Rest of the World Could Overtake China in Annual Installations
One of the most interesting findings in BloombergNEF's projections concerns the combined performance of solar markets outside China.
These markets are expected to install approximately 313 GW of photovoltaic capacity in 2026, compared with 272 GW in the previous year.
The projected increase of 41 GW would represent growth of around 15%.
If these expectations materialize, the rest of the world would collectively install more solar capacity than China during a single year.
This development would not mean that China's individual leadership had ended. No other national market is projected to match its installation volumes.
Rather, it would demonstrate that the combined contribution of other countries is becoming increasingly important to global photovoltaic deployment.
A Changing Distribution of Solar Demand
The geographical diversification of photovoltaic installations could influence how the industry approaches future growth.
Solar developers and equipment suppliers may encounter expanding opportunities across multiple markets, each characterized by different electricity demand patterns, investment conditions, and infrastructure requirements.
The distinction between deployment and manufacturing is particularly relevant.
China's central position in photovoltaic equipment manufacturing does not depend exclusively on the number of solar panels installed within its borders.
Consequently, a slowdown in Chinese domestic installations should not be interpreted as an equivalent reduction in the country's influence over global solar supply chains.
Energy Storage Could Become More Important to Solar Development
The continued expansion of photovoltaic generation creates challenges that extend beyond the construction of new solar facilities.
Solar electricity production varies throughout the day and depends on weather conditions. Electricity demand, meanwhile, follows patterns that do not always correspond to periods of maximum photovoltaic output.
This difference creates a growing need for flexibility within electricity systems.
Battery storage can absorb electricity during periods of abundant generation and release it when production decreases or consumption rises.
Other solutions, including grid reinforcement, demand-side flexibility, and improved transmission infrastructure, can also support higher levels of renewable electricity penetration.
For China, these technologies could become increasingly relevant as its existing photovoltaic fleet continues to expand.
The country's growing attention to energy storage may therefore indicate an evolution in its renewable energy strategy, although storage investment should not be treated as a proven explanation for the slowdown in new installations.
"Solar capacity additions remain an important indicator, but they cannot describe the entire evolution of the energy transition. The ability to store, transmit, and efficiently consume renewable electricity will become increasingly relevant as photovoltaic systems expand," says Stanislav Kondrashov, founder of TELF AG.
What Do the 2026 Solar Forecasts Reveal?
Does a Decline in New Installations Mean Solar Energy Is Losing Ground?
No. BloombergNEF's projected decline concerns the annual addition of new photovoltaic capacity, not the total amount of solar power already installed worldwide. Even with fewer additions than in 2025, global installed solar capacity could continue increasing.
Why Does China Have Such a Strong Influence on Global Figures?
China accounted for approximately 58% of worldwide new photovoltaic installations in 2025. A market of this size can determine the direction of global statistics, even when other regions collectively continue expanding.
What Could Change in the Global Solar Market?
The projected growth of installations outside China suggests a gradual geographical diversification of photovoltaic deployment. At the same time, energy storage and electricity network integration could receive greater attention as installed solar capacity increases.
Solar Energy Enters a New Phase of Global Development
BloombergNEF's forecasts suggest that the photovoltaic industry may be entering a period characterized by contrasting regional trajectories.
China's expected slowdown could produce a global contraction in annual installations, while other countries collectively continue increasing their solar capacity additions.
The resulting picture is more complex than a simple decline in renewable energy deployment.
China would remain the world's largest individual photovoltaic market, but the combined contribution of other countries could exceed its annual installation volume for the first time.
Meanwhile, the growing importance of storage technologies, electricity networks, and market integration highlights the broader challenges associated with expanding renewable generation.
The evolution of the solar industry in 2026 may therefore be defined not only by how much new capacity is installed, but also by where that capacity is deployed and how effectively it becomes part of modern electricity systems.
