AES Chile proposes hybrid plant with over 3,000MWh of battery energy storage

February 21, 2023
LinkedIn
Twitter
Reddit
Facebook
Email

The local subsidiary of global energy firm AES has submitted an EIA for a hybrid renewables plant in Chile with over 3,000MWh of battery energy storage capacity.

AES Chile submitted its Environmental Impact Assessment (EIA) for the Pampas Hybrid Park yesterday (20 February), proposed for the commune of Taltal in the Antofagasta region. It has set the investment amount at US$800 million.

The project will involve the construction of a 140MW wind farm, two solar PV parks with a combined power of 252MWp and a lithium-ion battery energy storage system (BESS).

The BESS will have a power rating of 623.5MW with a duration of ‘up to five hours’, the company’s submission stated, with a total energy capacity of around 3,100MWh.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

This will be split into a 200MW/1,000MWh system which will store energy from the wind farm and a 423.5MW/2,100MWh system connected to the PV plant.

The energy produced by the 573-hectare plant will be connected to the nearby ‘S/E Pampsa’ substation for transmission to the country’s National Electric System (NES).

AES did not say which technology provider would supply the BESS solution. It has in the past enlisted Fluence, the global battery storage system integrator it co-founded along with Siemens, with the two together still holding a controlling stake.

Chile recently passed a major piece of legislation in October to incentivise the take-up of EVs through a statutory fee exemption and the deployment of grid-scale energy storage by making it easier for projects to sell energy and power in the NES market.

A few weeks ago, developers Fotowatio Renewable Ventures and oEnergy submitted EIAs for co-located battery storage projects totalling nearly 500MW. The country has a relatively small amount of grid-scale battery storage online today, under 100MW, but this is set to grow substantially in the coming years with projects already announced before the bill was passed.

The Antofagasta region lies within the Atacama desert, sometimes called the sunniest place in the world. The EIA from AES Chile said the project is ideally located for maximum sun irradiance throughout the year.

See all Energy-Storage.news coverage of developments in the energy storage market in Chile here.

15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.
13 October 2026
Santiago, Chile
Energy Storage Summit Latin America brings together developers, investors, utilities and policymakers to explore how storage is advancing system stability, regulation, deployment and new revenue models across the region. With insights from Chile, Argentina, Brazil, Mexico and beyond, the Summit focuses on financing, policy clarity, hybridisation, supply chain development and project optimisation as LATAM accelerates its storage buildout.

Read Next

Premium
January 22, 2026
Saudi Arabia and the UAE have emerged as two of the world’s most prominent energy storage markets, with mega-scale projects announced and moved forward at a staggering pace over the last two years. But what does the next phase look like?
January 20, 2026
Global infrastructure investor I Squared Capital has launched ANZA Power, a next-generation independent power producer (IPP) in Australia and New Zealand.
January 19, 2026
FranklinWH and ConnectDER have had their respective battery and electric meter technologies enrolled into programmes in Arizona expected to accelerate the take-up of home batteries for virtual power plants (VPPs).
January 16, 2026
Duke Energy, Elevate Renewables, and Fluence Energy, along with BrightNight and Cordelio Power, are advancing BESS projects across the BESS.
January 15, 2026
San Diego-based home battery storage company NeoVolta has formed NeoVolta Power, a joint venture (JV) to develop a US battery energy storage system (BESS) manufacturing platform in Pendergrass, Georgia.