Chile is making significant progress in decarbonizing its energy sector, aiming to achieve a 100% emissions-free power system by 2050. However, the country is facing challenges in grid flexibility as coal-fired power plants are gradually phased out. Wärtsilä, a global energy solutions company, has highlighted the need for storage and flexible gas plants to substitute the stability services previously provided by coal plants. The article discusses the limitations posed by the inflexibility of the existing power system, particularly in accommodating renewable energy without curtailment. Coal generation, which is only required at night in Chile, has led to curtailment of new solar projects, financial struggles for renewables investors, and increased costs for ratepayers. The sentiment of the article is positive, emphasizing the potential for Chile to lead in the energy transition with innovative solutions. Wärtsilä suggests a renewable integration plan to address the challenges and ensure a smooth transition. The article also highlights the importance of phasing out coal to reduce carbon emissions and the need for new battery storage and flexible gas power plants to maintain security of supply. Proposed steps include decommissioning 2.5GW of coal, installing energy storage and flexible gas capacity, and repowering coal plant sites to enhance system flexibility. By gradually retiring coal plants and increasing renewable energy capacity, Chile can pave the way for a cleaner energy future while ensuring supply security and stability. The article emphasizes the importance of planning and preparation to tackle the grid decarbonization challenges effectively, ultimately enabling Chile to achieve its ambitious emission reduction goals.