Global Smart Energy & Solar EPC Partner

Innovating Sustainable Power Solutions for a Greener Tomorrow

Grounded in verified engineering capabilities, sound corporate finance, and certified safety management standards.

5+ Nations

Global Project Footprint (Southeast Asia & Africa)

KW 5.34B+

2025 Construction Capability Evaluation

BBO / SH3

Credit Rating (SCI) & Health & Safety Rating

100 MW+ &
200+ Projects

Cumulative Solar Installation

ONE POWER Co., Ltd. is a premier renewable energy enterprise delivering turnkey power solutions across solar photovoltaic (PV) engineering, smart grid integration, and electrical infrastructure. Built upon a solid foundation of technical excellence, operational transparency, and financial stability, we lead the energy transition by deploying high-efficiency Solar EPC, advanced IoT-based remote telemetry systems, and cross-border clean energy developments.
From initial feasibility assessment and engineering design to tier-1 equipment procurement, precision construction, and long-term asset management, ONE POWER powers a cleaner, more sustainable future for commercial clients, public institutions, and global communities.

solar panels on brown field under white clouds during daytime
solar panels on brown field under white clouds during daytime

Comprehensive Energy & Infrastructure Services

Delivering integrated, turnkey solutions engineered to maximize energy output and ensure operational reliability throughout the project lifecycle.

TURNKEY SOLAR EPC

ELECTRICAL & TELECOM

SMART ENERGY STORAGE

ASSET OPTIMIZATION

End-to-End Solar Solutions

Industrial Power Networks

Utility-Scale BESS Systems

Automated O&M Operations

Electrical insulators and metal components on a transformer against a clear blue sky
Electrical insulators and metal components on a transformer against a clear blue sky
a person working on a solar panel
a person working on a solar panel
a row of shipping containers sitting next to each other
a row of shipping containers sitting next to each other
A close up view of a sound board
A close up view of a sound board
a group of cubes that are on a black surface
a group of cubes that are on a black surface
assorted-color book lot
assorted-color book lot
Business partners shake hands, making a deal
Business partners shake hands, making a deal

WHY ONE POWER?

Patented Technology & R&D

Driven by our dedicated R&D Center, we hold structural mounting patents that reduce rooftop installation time by 20% and generation algorithms boosting annual electricity yields by 15%+.

Certified Safety & Stability

Licensed Electrical Contractor (Gwangju-01009), ISO 45001:2018 Certified Occupational Health & Safety Manager, Energy Service Company (ESCO), and Certified Venture Enterprise.

Tier-1 Strategic Alliances

Strategic partnerships with KEPCO KDN, LS Electric, KT, Hanwha, and Hyosung, reinforced by our affiliate network spanning electrical safety, trading, and environmental engineering.

Engineering Excellence, Uncompromised Reliability.

Every Project a Landmark of Operational Reliability.

Seamless Execution from Concept to Grid Interconnection

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Feasibility Study & Consulting

Precision Engineering & Licensing

Tier-1 Procurement & Turnkey Construction

Grid Interconnection & Smart O&M

We conduct rigorous site surveys, solar irradiation simulations, shading assessments, and local regulatory reviews. Our team delivers precise ROI modeling and financial feasibility analysis tailored to your specific energy goals.

Our in-house R&D and engineering experts design customized structural and electrical blueprints utilizing patented mounting solutions. We manage all municipal licensing, environmental reviews, and grid connection approvals seamless.

Leveraging direct manufacturing capabilities and tier-1 partner networks (LS Electric, Hanwha), our certified engineers execute civil works, structural assembly, and high-voltage wiring under strict ISO 45001 health and safety management.

Following grid commissioning, we activate our patented IoT remote monitoring system. We provide 24/7 real-time yield tracking, automated fault detection, and long-term preventive maintenance to ensure maximum lifetime plant performance.

Guaranteed 48-Hour RFQ Response

Provide your project specifications and receive a comprehensive quotation within two business days. Our engineering team is ready.