China's coal-fired power generation accounted for 49.7% of total electricity output in the first half of 2026, marking the first time on record that the share has fallen below 50%, according to data from the National Energy Administration.

Renewable energy sources generated nearly 2 trillion kWh in the period, representing 41.2% of total power output, with combined wind and solar generation exceeding 1.2 trillion kWh, roughly a quarter of total electricity consumption.

The shifting balance reflects a historic turning point in China's energy structure, driven by long-term systemic planning, technological advances and institutional reforms in the world's largest coal-consuming nation.

The declining role of coal power does not signal the marginalization of the coal industry. Rather, it marks a fundamental shift from being the dominant power supplier to a comprehensive energy service provider, accelerating the sector's transition toward cleaner, more efficient and diversified operations.

Coal power remains the backbone of electricity supply. Coal-fired plants account for only 32% of total installed capacity but support nearly half of national electricity consumption, while providing about 70% of peak-load support and 80% of system flexibility regulation.

In 2025, coal power accounted for roughly 90% of thermal power generation. Replacing coal power would require an additional 100 billion cubic meters of natural gas annually, equivalent to 5.8 times 2025 import volumes, or about 1.33 billion tonnes of diesel, which would require crude oil imports to rise by more than 2.3 times.

Given China's energy endowment of abundant coal, limited oil and scarce gas, coal power has significantly stabilized end-user electricity prices and supported smooth socioeconomic operations. Coal power is expected to retain its strategic importance for decades to come.

Coal power also serves as a stabilizer for electricity supply. While renewable energy has development advantages, it faces inherent challenges. Wind power is technologically mature and pollution-free, but its output is intermittent and weather-dependent. Solar power offers wide distribution, modular deployment and low costs but suffers from diurnal intermittency and weather sensitivity.

Hydropower is the most mature technology with strong peak-shaving capabilities but has environmental impacts, site limitations and long construction periods. Nuclear power provides high energy density and stable output but demands stringent safety standards and extended construction timelines.

The inherent intermittency, volatility and randomness of wind and solar power remain objective constraints. During extreme weather events, peak demand periods or low renewable output windows, stable and controllable coal power remains the final safety net for electricity supply. No alternative energy source can fully assume coal power's backstop role in the near term.

Coal consumption is entering a plateau period, with reduced baseline usage but significantly higher emergency reserve requirements during extreme weather, reflecting a pattern of stable volumes with qualitative changes.

This milestone also signals the end of extensive expansion for the coal industry, ushering in a phase of high-quality transformation focused on stability over volume and quality over market position.

Coal enterprises should proactively develop integrated coal power plus renewable energy operations, using the stability of traditional energy to offset the volatility of clean energy. Capacity management should shift from rigid full production to flexible reserves in response to demand-side changes.

In the spot market, the stabilizer role of long-term contract coal will be further amplified, potentially increasing spot market volatility. When renewable output is strong, coal power is constrained and coal prices face pressure; when renewable output weakens, coal power provides support and coal prices surge. Thermal coal prices may become increasingly weather-dependent.