Compared to coal-fired and hydroelectric power, solar power generation is significantly cleaner and more environmentally friendly.

International research institutions have reached consistent conclusions. As early as March 28, 2012, Greenpeace released the Clean Production Research Report on China's Photovoltaic Industry, affirming solar power as a superior low-carbon energy source. The report demonstrates that achieving clean production in the PV industry delivers dual benefits: environmental protection and cost reduction.

Critically, photovoltaic systems operate with zero emissions during electricity generation. While manufacturing involves energy consumption and carbon emissions, these represent merely 5–10% of fossil fuel equivalents. With an Energy Payback Time (EPT) of just 1.3 years and a typical system lifespan of 25 years, PV installations provide approximately 24 years of net-zero carbon operation – underscoring their exceptional advantages in energy conservation and emission reduction.