PPA signed for Grenergy’s Oasis de Atacama project in Chile, featuring ‘world’s biggest’ BESS

By JP Casey
LinkedIn
Twitter
Reddit
Facebook
Email

Spanish independent power producer (IPP) Grenergy has signed a power purchase agreement (PPA) for the fourth phase of its Oasis de Atacama solar-plus-storage project in Chile, which has the largest capacity of any storage project in the world.

Grenergy is commissioning the project, which was announced in 2023, in four phases, and expects to begin operation in 2025. The fourth phase of development will see Grenergy add 260MW of new solar capacity, alongside 1.1GWh of new storage capacity, which will help the project reach its total nameplate capacity of 1GW of solar and 4.1GWh of storage.

The company signed the PPA with an unnamed “international utility with an investment grade credit rating”, and the utility will acquire power generated at this phase of the project for 15 years. Grenergy has already completed PPAs for other phases of the project, with Chilean energy company EMOAC signing a 15-year deal, and Grenergy has now completed contracts worth €2.7 billion (US$2.9 billion) at the project.

To read the full version of this story, visit PV Tech.

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

8 July 2026
9am PDT / 5pm BST
This webinar will examine how FEOC requirements are reshaping the U.S. BESS market from both a policy and practical implementation perspective. Experts from Intertek CEA will break down the latest developments surrounding FEOC restrictions and Material Assistance Cost Ratio (MACR) thresholds, as well as key areas where uncertainty remains around topics such as effective control, intellectual property, and grandfathering provisions. Beyond policy, the session will also focus heavily on the practical realities developers and buyers are now facing in the market. Attendees will gain insight into how Intertek CEA is assessing battery suppliers in practice, what documentation and evidence can support compliance efforts, and how to navigate emerging supplier transparency and due diligence challenges
25 August 2026
São Paulo, Brazil
ees South America, LATAM’s key event for batteries and energy storage systems, focuses on energy storage solutions suited to support and complement energy systems with increasing shares of renewable energy, while integrating prosumers and electric vehicles. The event is strongly rooted in the LATAM region and highlights the strategic relevance of sector coupling across electricity, heat and mobility. As part of it, “element1,” a dedicated special exhibition, spotlights the high potential of green hydrogen in Brazil. ees South America brings together investors, utilities, installers, manufacturers and project developers from all over the world.
25 August 2026
Sydney, Australia
Building on our successful global portfolio of energy storage network events including our successful Energy Storage Summit Australia, combined with the exponential buildout of large-scale energy storage, we are delighted to return for the inaugural Battery Asset Management Summit Australia in Sydney (25-26 August 2026). The Battery Asset Management Summit has been received worldwide with huge optimism and has quickly established itself as leading event series for connecting asset owners with optimisers, software providers, and many more.
1 September 2026
Dubai World Trade Centre, Dubai
Co-located with the extremely well renowned Middle East Energy Show, join us for the inaugural Energy Storage Middle East Summit in Dubai, April 2026, as we bring our world leading energy storage series to one of the world’s fastest-growing BESS markets. This landmark event will explore the Middle East’s trajectory to become the third largest storage market globally by 2026, with a special focus on the region’s ambitious renewable energy targets and BESS integration strategies.
8 September 2026
Barcelona, Spain
Battery & Energy Storage Tech Europe (BESTE) is Europe’s industrial scaling platform for stationary and industrial battery applications — not EVs. Taking place 8–9 September 2026 at Fira de Barcelona, BESTE brings together utilities, IPPs, energy-intensive industries, data centres, ports, rail, maritime, defence and aerospace OEMs — all deploying or integrating battery storage at scale. Over 100 companies already confirmed — including EDP Renewables, Acciona, Endesa, Naturgy, Neoen, Galp, Basquevolt and Veolia — alongside 40+ expert speakers and international institutional support from BEPA, BVES, LDES and Volta Foundation. Where Europe’s battery & ES ecosystem turns projects into reality.
9 September 2026
Schaumburg, Illinois
RE+ Midwest brings together clean energy businesses, utilities, professionals, and policymakers to explore the technologies, trends, and opportunities shaping the Midwest energy market. Following a successful 2025 event that welcomed more than 1,200 attendees and 90 exhibitors, RE+ Midwest continues to highlight the region’s growing role in advancing solar, energy storage, EV infrastructure, and grid modernization. From rustbelt to greenbelt, the Midwest is helping drive the future of clean energy forward.

Read Next

July 2, 2026
A roundup of recent large-scale BESS activity in the UK, with IPPs ContourGlobal, Zenobē and Revera buying or taking FID on three separate projects totalling 3.6GWh of capacity.
Premium
July 2, 2026
State of charge (SOC) is on the face of it a straightforward measurement for batteries and BESS. But in reality, it’s highly complex and under- or over-reporting still happens in the industry, leading to under-performance and losses in revenue.
July 2, 2026
Tank storage company Vopak has marked its energy into the BESS sector with a final investment decision (FID) for a 200MW/800MWh BESS in the Netherlands, which recently entered into a first-of-its-kind agreement with TSO TenneT.
July 2, 2026
US sodium-ion (Na-ion) battery startup Alsym Energy and consulting organisation for the mining and energy sectors, Erity, have signed a 9GWh strategic relationship agreement (SRA) for global mining use-cases.
July 2, 2026
Singapore-headquartered clean energy developer Vena Energy has raised AU$1.4 billion (US$970 million) in green finance to support 614MW of solar PV capacity and 1,141MWh of battery energy storage systems (BESS) in Australia.