Engie wins 50MWp/300MWh solar-plus-storage duo on Guam

October 8, 2019
Facebook
Twitter
LinkedIn
Reddit
Email
Guam. Source: Flickr, Jonathan Miske

Engie has been hired by Guam’s state electricity utility to build two solar-plus-storage plants with a combined capacity of 50MWp/300MWh on the Micronesian island.

The firm scooped up the project duo in the third round of Guam’s competitive renewable tender programme after submitting the lowest bid.

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

The plants will deliver more than 85GWh annually and are scheduled to be operational by 2022, according to Engie.

By the time this article was published, the French energy group had not responded to PV Tech's questions about the project's tariff, its costs and its construction timeline.

The firm's storage business, Engie EPS, will supply the battery storage system and act as the solution provider and system integrator with help from partner Samsung SDI.

Carlalberto Guglielminotti, Engie EPS CEO, said that the “iconic” project marks a “paradigm shift,” in that it is “now possible to provide solar power at night cheaper than conventional generation.”

Engie EPS estimates that the installed battery systems can ensure power for seven hours after sunset.

Guam’s Power Authority (GPA) will formally award Engie with a 20-year power purchase agreement (PPA) once the regulatory recourse process finishes and the partners have clinched approvals from two local public service commissions.

The GPA is working to wean itself off petroleum products shipped in by tanker, and towards a target of sourcing 25% of energy from renewables by 2021.

The other major solar project underway on the Southern Pacific US territory is a pair of 60MW PV plants, announced in August 2018 by Hanwha Energy and a consortium including Korea Electric Power Corp and LG-CNS, part of LG Corporation.

The US military accounts for one-fifth of Guam's electricity consumption.

US solar prospects amid trade tensions and a changing incentive landscape will take centre stage at Solar Media's Solar & Storage Finance USA in New York on 29-30 October 2019.

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

November 12, 2025
Nextracker has rebranded itself as ‘Nextpower’ to reflect what the company said was its evolution from solar tracker supplier to a “full-platform” provider of integrated energy solutions.
November 12, 2025
Qcells has announced plans to reduce pay and working hours for one-third of its 3,000 employees in the US state of Georgia.
Premium
November 12, 2025
PV Talk: Stefano N. Granata of STS discusses the growing momentum behind back contact cell technology as manufacturers and investors embrace higher-efficiency solutions.
November 12, 2025
US solar installer SunPower has continued its expansion in the residential market with the acquisition of Utah-based residential installer Ambia Solar.
November 11, 2025
Sunrun has posted revenue of US$724.6 million in the third quarter of this year, marking the third consecutive quarter of growth this year.
November 10, 2025
Pine Gate Renewables has filed for Chapter 11 bankruptcy to pursue a court-supervised sale of its solar and energy storage portfolio, along with its independent power producer (IPP) platform.  

Upcoming Events

Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Lisbon, Portugal
Solar Media Events
June 16, 2026
Napa, USA