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The project is integrated into Copecs 123 MWp facility, located in the Tarapacá region. It will have a storage capacity of 420 MWh. This is Transelecs first storage contract. Transelec, Chiles leading transmission company, has announced the start of construction of a large-scale energy storage system at Copecs Granja Solar photovoltaic park in the Tarapacá region. The system, which will have a nominal feed-in capacity of 105 MW and a storage capacity of 420 MWh, marks Transelecs first contract of its kind. The BESS (Battery Energy Storage System) will allow the energy generated by the solar farm to be stored during the day and delivered to the National Electric System (SEN) during times of peak demand or lower solar generation. This solution responds to the high rate of renewable energy discharge registered in the country, which has increased by 225% since 2021, and seeks to improve the integration and stability of the electricity supply. The storage system is scheduled to be operational in the first quarter of 2026. The infrastructure will initially connect to the Granja Solar substation via a 33 kV transmission line and subsequently use an existing 220 kV line to the Lagunas substation, also owned by Transelec. The long-term BOOT contract, agreed in July of last year , envisages Transelec assuming the construction, operation, and management of the system for 20 years, after which it will transfer the asset to Copec. The Granja Solar photovoltaic park, acquired by Copec in April 2024, has an installed capacity of 123 MWp and joins the renewable generation offering of Copec Emoac, a subsidiary specializing in the marketing of renewable energy and storage solutions. The BESS system will allow the SEN to inject energy equivalent to the annual consumption of more than 60,000 homes. In August 2024, Transelec announced the purchase of the batteries and conversion equipment for the large-scale BESS storage system for this project from the Chinese company Clou Electronics . A statement explained that Clou would provide more than 130 20-foot (6-meter) modules, each containing thousands of energy battery cells. In total, there are more than 130 liquid-cooled battery modules. |
