China wastes a quarter of its renewable power despite rapid expansion, as coal generation rises in first half of 2026 due to flawed electricity market design
Executive summary: In the first half of 2026, China curtailed approximately one-quarter of its renewable electricity generation despite leading the world in renewable capacity additions, while coal power output increased over the same period. The mismatch between renewable generation and grid absorption undermines China's climate commitments, raises questions about the effectiveness of its energy transition strategy, and highlights systemic flaws in electricity market design that could deter future investment.
Who is involved: Chinese national and provincial energy authorities, grid operators, renewable energy producers, coal power companies, and policymakers overseeing electricity market reform.
Likely next: Accelerated investment in grid infrastructure, pilot reforms in provincial power markets to improve renewable dispatch, and potential policy adjustments to reduce curtailment through better storage and demand-response integration.
China's renewable energy capacity has grown faster than any other country's, yet grid constraints and outdated market mechanisms prevent full utilization of green power. In the first half of 2026, renewable curtailment reached 25%, while coal-fired generation increased, undermining decarbonization goals. The situation reveals a structural mismatch between renewable investment and grid readiness, with policy and market design failing to keep pace with deployment.
Timeline
- — Energiewende: „Das Strommarktdesign funktioniert nicht“: China verschwendet ein Viertel seines grünen Stroms (Handelsblatt)
- — Rente: Fast drei Viertel der Rentenleistungen waren 2025 einkommensteuerpflichtig (Handelsblatt)
Analysis — what this means
Likely next events
- National Energy Administration to release Q3 2026 renewable curtailment data by October 2026
- State Grid Corporation to announce new interprovincial transmission projects by Q1 2027
- Inner Mongolia and Xinjiang to pilot market-based renewable trading mechanisms starting November 2026
Sectors affected
- Renewable energy generation (wind, solar)
- Electricity grid infrastructure and transmission
- Coal power generation
- Energy storage and frequency regulation services
Regulatory implications
- Revision of electricity market rules to prioritize renewable dispatch (expected draft by end 2026)
- Introduction of capacity compensation mechanisms for curtailed renewables under consultation
- Strengthening of provincial accountability for renewable integration targets under the 14th Five-Year Plan
Historical parallels
- Germany's Energiewende faced similar grid congestion and curtailment issues during rapid renewable expansion (2015-2020)
- Texas (ERCOT) experienced wind curtailment exceeding 10% in 2019–2020 due to transmission bottlenecks
- India's solar and wind curtailment averaged 5–7% in 2022–2023 due to grid inflexibility and timing mismatches