Constant Energy agrees on 50MW of solar for Thai cement giant including floating PV

April 1, 2019
Facebook
Twitter
LinkedIn
Reddit
Email
The major 50MW C&I solar deal for 30% Thai Crown-owned firm will include some energy storage components. Credit: Constant Energy

Thailand-based clean energy developer and investor Constant Energy has signed a Memorandum of Understanding with one of Thailand's largest companies, Siam Cement Group (SCG Cement), to deploy 50MW of C&I solar PV plants including rooftop, ground-mount and floating technology.

Franck Constant, CEO of Constant Energy, told PV Tech that the PV projects at various affiliates of the packaging, cement and petrochemical giant, are likely to range from 1-5MW in size, that several of the projects are likely to include an energy storage component, and that Constant Energy will be the 100% investor in the projects.

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

Power off-take from the projects will be handled under corporate power purchase agreements (PPAs) for numerous factories of SCG Cement in Thailand as well as several other companies chosen by SCG, which is 30% owned by the Crown Property. Power will be supplied directly from the Constant Energy plants to the factories.

Franck Constant said it was too early to say where the floating PV systems would be located, but the target is for all 50MW of solar to be deployed over the coming three years in multiple provinces across Thailand including Saraburi, Lopburi, Samut Prakan, Rayong, Songkhla, Buriram.

Siam Cement Group is a leading business conglomerate in ASEAN region, having been established in 1913 following a royal decree of His Majesty King Rama VI to produce cement.

“I had the chance 20 years ago to negotiate and conclude a joint investment for a 120MW cogeneration power plant with Siam Cement Group (Nong Khae Cogeneration) which is still operating successfully today and servicing industrial customers with high-quality low-cost steam and power. Siam Cement and its team have been great partners to work with. I am excited to execute this MoU today with Siam Cement to provide even lower cost power, this time through our zero-carbon emission PV power plant for at least the next 20 year,” said Franck Constant in a release.

The company has already started engineering of its first solar PV plant under the deal and the pre-construction permitting and licensing process will be handled in Q2 this year, followed by construction. 

Constant has long said that corporate PPAs are likely to dominate the clean energy space in Southeast Asia over the next few years.

Land constraints in Southeast Asia also make it a suitable region for alternative technologies like floating solar – a large FPV project was recently installed in Cambodia – while Thailand is also beginning to take energy storage seriously with battery storage pilots and major FPV plans.

Read Next

October 15, 2025
Ciel & Terre has launched a new floating PV structure designed to address the increasingly large scale of floating solar projects.
October 7, 2025
The government of Victoria, Australia, has launched the an incentive scheme to encourage businesses to install rooftop solar installations.
October 2, 2025
The Indian Department of Commerce has launched an antidumping investigation on solar encapsulants originating or exported from South Korea, Vietnam and Thailand.
October 1, 2025
Adding 32GW of new solar to Thailand’s power generation deployment targets could cut power generation costs by as much as US$1.8 billion.
September 11, 2025
Constant Energy has secured THB300 million (US$9.4 million) in green financing from HSBC to expand large-scale solar and battery storage projects in Thailand. 
September 2, 2025
SMA Solar has forecast financial losses and further restructuring measures in 2025, as it responds to falling sales and a “challenging” market for residential and commercial renewable energy installations.

Subscribe to Newsletter

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 10, 2026
Frankfurt, Germany
Solar Media Events
March 24, 2026
Lisbon, Portugal