PVTIME – During her keynote at the 4th Latin American Energy Storage Summit, Ana Lía Rojas, Executive Director of Chile’s Renewable Energy and Storage Association (ACERA), revealed key energy data. As of August 2025, the curtailment of solar and wind power in the country had reached 3.2TWh.
This figure is slightly higher than in the same period last year, but the growth rate has slowed compared to 2023–2024. In 2024, Chile’s solar and wind curtailment approached 6TWh, marking a 133% year-on-year increase. Ms Rojas added that, while the grid saw 2.2TWh of new solar generation last year, solar curtailment rose by 2.7TWh, highlighting deep-seated challenges in system absorption capacity.
Despite these absorption issues, Chile’s renewable energy sector has strong growth prospects. Currently, 30.2GW of renewable projects have secured environmental approval, including 19.9GW of solar power and 2.9GW of energy storage capacity. Rojas also mentioned that an additional 22GW of projects are awaiting environmental approval, 6.8GW of which are standalone battery energy storage systems.
Rojas emphasised that growth in electricity demand is critical to Chile’s energy transition. Without it, the country’s energy mix would experience the same bottlenecks that hindered technological expansion in recent years. She warned that weak demand growth would leave the grid facing full-scale market erosion, impacting not only renewables, but all energy types and segments, from large-scale utility projects to distributed generation (PMGD).
Rojas concluded that a policy focus on full electrification is urgently needed, and that action must be taken immediately.
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