Empresa de Transporte de Pasajeros Metro SA, commonly known as Metro de Santiago, is a Chilean company that operates in the passenger rail sector. It was founded in 1969 and is headquartered in Santiago, Chile. The company is responsible for the operation and maintenance of the Santiago Metro, which is the largest and most extensive metro system in Chile. The Santiago Metro is a vital part of the transportation infrastructure in Santiago, serving millions of passengers every year.

Decarbonisation is a key priority for Metro de Santiago, and the company has taken several steps to reduce its carbon footprint. One of the ways in which the company has achieved this is by investing in renewable energy. In 2016, Metro de Santiago signed a contract with a renewable energy company to purchase 42 GWh of renewable energy per year. This represents around 60% of the energy that the company consumes. The renewable energy is generated from wind and solar sources, and the contract is expected to reduce the company's carbon emissions by around 17,000 tonnes per year.

In addition to purchasing renewable energy, Metro de Santiago has also implemented several energy efficiency measures. For example, the company has installed LED lighting in its stations and trains, which has reduced energy consumption by around 30%. The company has also implemented a program to optimize the use of its trains, which has resulted in a reduction in energy consumption of around 10%.

Corporate energy is another area of focus for Metro de Santiago. The company has implemented a corporate energy management system, which is certified to the ISO 50001 standard. This system allows the company to monitor and manage its energy consumption, identify areas for improvement, and track progress towards energy efficiency goals. The system has helped the company to reduce its energy consumption by around 3% per year.

Corporate power purchase agreements (PPAs) are another way in which Metro de Santiago is supporting the transition to renewable energy. In 2020, the company signed a PPA with a renewable energy company to purchase 100 GWh of renewable energy per year. This represents around 80% of the company's energy consumption, and the renewable energy is expected to reduce the company's carbon emissions by around 40,000 tonnes per year. The PPA is part of the company's commitment to achieving carbon neutrality by 2050.

Renewable energy is a key focus for Metro de Santiago, and the company has set ambitious targets for the use of renewable energy. The company has committed to sourcing 100% of its energy from renewable sources by 2040, and to achieving carbon neutrality by 2050. These targets are aligned with the goals of the Paris Agreement, which aims to limit global warming to well below 2 degrees Celsius.

In conclusion, Metro de Santiago is a leading player in the passenger rail sector in Chile, and is committed to decarbonisation and the use of renewable energy. The company has implemented several energy efficiency measures, purchased renewable energy, and signed corporate PPAs to reduce its carbon footprint. The company's commitment to achieving carbon neutrality by 2050 is a clear indication of its dedication to sustainability and the transition to a low-carbon economy.