PT Perusahaan Listrik Negara (PLN) (Persero) is an Indonesian state-owned enterprise that holds a monopoly on the distribution of electricity in Indonesia and generates the majority of the country's electrical power. It was established in 1945 and is headquartered in Jakarta. PLN's main business activities include:

• Electricity Generation: PLN owns and operates a variety of power plants, including coal-fired, gas-fired, geothermal, hydroelectric, and solar power plants.
• Electricity Transmission: PLN owns and operates a vast transmission network that delivers electricity from power plants to distribution centers.
• Electricity Distribution: PLN distributes electricity to end-users through a network of distribution lines and substations.

PLN also provides a variety of other services, such as:

• Metering and Billing: PLN installs and maintains electricity meters and bills customers for their electricity usage.
• Customer Service: PLN provides customer service through a variety of channels, including call centers, walk-in centers, and online services.
• Research and Development: PLN conducts research and development on new technologies to improve the efficiency and reliability of its electricity generation, transmission, and distribution systems.