Barros & Errázuriz advised Colbún S.A. in the negotiation and signing of a power purchase agreement with Atlas Renewable Energy, regarding the Estepa project, consisting of a battery storage project (BESS) of 230 MW of installed capacity and 920 MWh of daily storage, equivalent to 4 hours of storage, located in María Elena, Antofagasta Region. The contract, signed for a term of 15 years, will allow Colbún to acquire up to 335 GWh per year of energy from the BESS system, optimising the use of renewable energies in the National Electricity System.