Enel Green Power Chile has launched construction of a 100 MW grid-forming battery energy storage system (BESS) at the existing Finis Terrae solar photovoltaic park in the northern Antofagasta region, the Italian renewables group said on August 17, 2026.
A Grid-Forming Sixth For Chile
The Finis Terrae BESS will be rated 100 MW at the point of interconnection and, unusually for the region, will feature grid-forming capabilities, letting it help maintain stable voltage and frequency on Chile's National Electric System (SEN). By pairing storage with the existing solar array, Enel Green Power is turning the site into a hybrid solar-plus-storage plant that can shift daytime PV output into peak evening hours. The company says Finis Terrae is its sixth large-scale BESS project in Chile, adding to a fleet that already totals roughly 730 MW of storage capacity in the country.
Battling Solar Curtailment
Chile has become one of the world's most active grid-scale storage markets and by far Latin America's biggest, as developers race to soak up surplus midday solar generation that has been driving both physical curtailment and negative wholesale prices. Battery durations in Chile typically run four to six hours to match the solar-shifting use case. Enel Green Power's Chilean project pipeline also includes the 205 MW BESS Las Salinas and the 94 MW Azabache BESS, on top of operating projects at La Cabana (34 MW), Don Humberto (67 MW) and El Manzano (67 MW).
Storage Targets Hit Years Early
Chilean regulators have watched storage deployments outrun their own targets: the country reached its 2027 storage build-out goal a year early and is now on track to hit the 2050 target by 2027. Recent activity includes Limes Renewable Energy reaching ready-to-build stage on a 200 MW / 1 GWh project, Verano Energy ordering 660 MWh of Sungrow batteries, and ContourGlobal starting a 131 MWp solar plus 90 MW / 360 MWh BESS site. Enel has not disclosed the battery supplier for Finis Terrae, in line with its usual practice.
Latin America's Storage Momentum
The Finis Terrae start-up lands alongside a wave of regional and global storage moves this month, from EDF and NV Energy's 400 MW Winston solar-plus-storage PPA to Low Carbon's 400 MW Beacon Fen approval in the UK and LG Energy Solution's LFP supply deal for Tesla's Megapack 3.
Reporting based on coverage from Energy-Storage.News, Renewables Now and Enel Green Power.