TotalEnergies ENEOS Commissions 28 MWp Rooftop Solar at Samsung Vietnam

TotalEnergies ENEOS, a joint venture between TotalEnergies (TTE) and Japan's ENEOS, switched on a 28 MWp rooftop solar array at Samsung Electronics' HCMC CE Complex in Vietnam. The project is the largest private-wire power purchase agreement under Vietnam's Decree 57 framework, the companies said.

Under the 20-year PPA, TotalEnergies ENEOS financed and installed the system. It will also operate and maintain it for the contract term. The 45,000 panels generate 40,000 MWh a year, covering 26% of the site's electricity use. Samsung benefits from a fixed price for renewable power, reducing exposure to Vietnam's grid electricity tariffs, which have risen 3% annually in recent years.

The Decree 57 framework, approved in 2024, allows direct PPAs between generators and large users without going through the state utility EVN. That reduces regulatory uncertainty for industrial buyers. It also creates a new counterparty: the private generator. If TotalEnergies ENEOS fails to deliver, Samsung has no EVN backup at the same price. The contract has no force majeure carve-out for grid curtailment, a source familiar with the terms said.

Keunha Hwang, President of Samsung Electronics HCMC CE Complex, said the project "marks a significant milestone in SEHC's transition toward renewable energy."

TotalEnergies holds a 50% stake in the JV, which plans 2 GW of decentralized solar across Asia. The Samsung project is a flagship for the platform. A dispute or default at this site would damage the JV's credibility with other industrial clients. TTE's Alpha Score sits at 70, labeled Moderate, reflecting its diversified energy mix but also its exposure to regulatory shifts in emerging markets.

A clear track record of PPA payments under Decree 57 would reduce the risk premium. The Vietnamese government has signaled plans to expand the DPPA cap from 1 GW to 5 GW by 2027, which would broaden the addressable market. A reversal of Decree 57, or a dispute over the private-wire tariff, would strand the investment. Samsung's RE100 commitment depends on this site; a default would force it back to the grid or to purchasing unbundled RECs, which carry their own price risk.

The project was commissioned in April 2026. The next milestone is the first anniversary of commercial operation, when the PPA's pricing formula is subject to a review, the companies said.