Global installed solar capacity has officially surpassed 3 terawatts (TW) as of early 2026, according to a report from BloombergNEF (BNEF). This significant milestone marks a rapid acceleration in solar energy adoption, with the global capacity growing from 1 terawatt achieved in 2022 to 3 terawatts in less than two years. The remarkable pace of this growth highlights an increasing global commitment to renewable energy sources.
Rapid Growth in Solar Power Capacity
The growth trajectory of solar energy has been unprecedented. It took approximately ten years for the world to increase its solar capacity from 100 gigawatts (GW) to 1 TW, a milestone reached in 2022. Following that, the second terawatt was added in under three years, achieving 2 TW in 2024, and the third terawatt was incorporated in less than two years. This acceleration illustrates not only the technological advancements in solar energy but also a growing recognition of its importance in combating climate change and providing sustainable energy solutions.
China’s Dominance in Solar Expansion
China has played a pivotal role in this growth, accounting for approximately 55-60% of the solar capacity additions in 2025 alone. The country’s extensive investments in solar technology and infrastructure continue to drive global solar expansion. However, the increase in solar capacity is not solely a Chinese phenomenon; there has been a notable rise in the number of countries embracing solar energy.
Global Adoption Across Developing Nations
Since 2020, the number of countries with at least 1 GW of solar capacity has surged from 42 to 74 by 2025. Developing nations such as Pakistan, Nigeria, and Cuba are increasingly adopting rooftop solar solutions, especially in the context of ongoing energy crises. This trend indicates a shift towards decentralized energy systems that can enhance energy security in regions facing traditional energy supply challenges.
Solar Energy’s Contribution to Global Electricity
Currently, solar power contributes approximately 9% of the world’s electricity, a significant increase from just 3% in 2020. BNEF projects that solar capacity could reach 9 TW by 2036, underscoring the potential for solar energy to play a major role in the future energy landscape. This growth is critical for meeting global energy needs while transitioning towards more sustainable practices.
Looking Ahead
The advancements in solar technology and the increased adoption rate globally signify a transformative period for renewable energy. As nations strive to meet climate goals and reduce carbon emissions, solar energy stands out as a viable solution for energy generation. The rapid pace of solar capacity growth highlights the potential for continued expansion and innovation in the sector.
This remarkable achievement of surpassing 3 terawatts of solar capacity signifies a turning point in the global energy narrative, as more countries and communities turn to sustainable energy sources to power their futures. While the milestone may have gone unnoticed by many, it represents a crucial step forward in the fight against climate change and in the quest for energy independence.
Watch the full video on YouTube: The World Just Hit 3 Terawatts of Solar — And Almost Nobody Noticed
