Laguna de Bay Floating Solar Project – Taguig Section

A floating solar project (also known as "floatovoltaics") is a renewable energy system where solar panels are mounted on floating platforms anchored to stationary water bodies such as lakes, reservoirs, and ponds. Unlike conventional ground-mounted installations, these systems utilize otherwise idle water surfaces for clean energy generation, supported by high-density polyethylene (HDPE) floatation structures and specialized mooring systems designed to withstand water level fluctuations and wave loads.
Three Core Advantages Over Ground-Mounted Systems
1. 5-15% Higher Power Generation Efficiency
The natural cooling effect of water reduces module operating temperatures by 5-10°C. Since module efficiency drops approximately 0.5% for every 1°C above optimal temperature, this water-cooled environment significantly enhances actual energy output compared to land-based installations exposed to ambient heat accumulation.
2. Zero Land Occupation
Floating solar eliminates the need for agricultural or construction land, making it ideal for regions facing land scarcity. The Laguna de Bay project in the Philippines spans 2,000 hectares of water surface with a planned capacity of 2.5GW—land that would otherwise require massive terrestrial resource allocation if developed as ground-mounted facilities.
3. Water Conservation and Algae Control
Panel coverage suppresses evaporation, with a 20MW project saving approximately 150-200 million liters of water annually. Simultaneously, sunlight blockage controls eutrophication and improves water quality, delivering dual benefits for energy generation and ecological preservation.
Why Do These Projects Require Specialized Cables?
The floating environment imposes severe challenges on cable infrastructure: permanent water immersion demands AD8 waterproof rating for long-term sealing integrity; dynamic platform movement requires cable flexibility with 6× outer diameter bending radius; salt mist corrosion threatens conductor longevity; and temperature cycling stresses material stability. Standard building wire simply cannot withstand the compound stresses of 25-year aquatic service life, necessitating purpose-engineered, certified photovoltaic cables.
Project Background and Client Pain Points
The Laguna de Bay Floating Solar Project – Taguig Section represents one of Southeast Asia's most ambitious floating photovoltaic developments, with a total capacity of 610.5MW developed through partnerships between international energy investors and local stakeholders. The EPC contractor faced four critical pain points during initial procurement:
Certification Compliance Pressure: The project financing structure involved international development banks and ESG-focused investors requiring complete TUV and UL documentation for all electrical components—a documentation depth many regional suppliers failed to provide.
Environmental Adaptability Deficit: The Taguig section experiences annual average humidity of 75-85%, with seasonal monsoons bringing prolonged water immersion and corrosive atmospheric conditions that standard cables could not survive within 25-year design life parameters.
Multi-Specification Integration Complexity: The project required diverse cable portfolios spanning low-voltage DC photovoltaic to medium-voltage transmission infrastructure, demanding seamless system interoperability that multi-vendor management would significantly complicate.
Aggressive Schedule Constraints: Tight construction timelines meant any supply delay could incur substantial liquidated damages, necessitating a partner with proven delivery reliability.
Our Solution: Dual-Certified Cable System
Addressing these pain points, Dongguan GERITEL Electrical Co., Ltd. delivered integrated cable solutions:
H1Z2Z2-K Photovoltaic Cable (120,000m 1×4mm² + 180,000m 1×6mm²): TUV certified (R50212528) & UL4703 certified, rated DC1500V/AC1000V, operating temperature -40°C to +90°C, 120°C short-circuit withstand. Features Class 5 tinned copper conductor (56-strand fine wire), E-beam XLPO double insulation, 5.5mm outer diameter, conductor resistance ≤5.09Ω/km, minimum bending radius 6×OD, AD8 waterproof rating, 25-year design life. Black/red dual-color coding ensures clear polarity identification for rooftop, ground-mount, floating solar, and battery storage applications.
THWN-2 Wet Rated Cable (40,000m 35mm² + 65,000m 70mm²): UL 83 listed with thermoplastic nylon insulation achieving 75°C wet rating, delivering superior moisture resistance for continuous stable operation during monsoon seasons.

XLPE Power Cable (18,000m 4×70mm² + 32,000m 4×120mm²) and MV-90 medium-voltage cable (8,000m 15kV 3×70mm² + 15,000m 3×120mm²): Complete power transmission infrastructure with 90°C continuous operation rating matched to tropical environments.
Submersible Cable (12,000m 3×95mm² + 22,000m 3×150mm²): Longitudinal water-blocking tapes and radial sealing layers engineered for permanent water immersion in floating platform applications.
Execution and Results
Our vertically integrated manufacturing enabled production scheduling precisely matched to phased construction—initial 10,000-15,000 meter batches of small-gauge photovoltaic cable followed by concentrated deliveries of large power cables. Standard items delivered in 15-20 days, specialized submersible cables in 25-30 days, maintaining construction schedule leadership.
Eighteen months post-energization, the Taguig section maintains design capacity with zero cable-related failures or performance degradation. The EPC contractor has subsequently engaged GERITEL for three additional renewable energy projects, explicitly citing reduced installation complexity and long-term reliability of our integrated cable solutions.

Client Feedback
The project's electrical director noted in final evaluation that GERITEL's dual-certified cable system completely eliminated documentation obstacles in financing approval, with comprehensive TUV and UL coverage enabling international development bank compliance review to pass on first submission. Engineering teams particularly recognized the corrosion resistance of H1Z2Z2-K's tinned copper conductors in high-salinity lake environments, and the installation efficiency gains from black/red color coding—reducing field wiring error rates by approximately 60% compared to previous projects.
The procurement lead emphasized that one-stop supply significantly simplified supply chain management, with coordinated delivery of nearly 500,000 meters of cable achieving zero delays and securing critical time windows for grid connection ahead of monsoon season. Technical support responsiveness also exceeded expectations, with on-site engineering guidance on bending radius specifications and sealing gland standards effectively preventing potential installation rework.
Most significantly, the client has incorporated GERITEL cable specifications into their corporate procurement standards as the preferred technical benchmark for floating solar projects across Southeast Asia. This recognition has directly translated into continuous collaboration on three subsequent projects, with cumulative order volume already exceeding the Taguig section scale.
Contact Us

Dongguan GERITEL Electrical Co., Ltd.
Tel/WhatsApp/WeChat: +86 135 1078 4550 / +86 136 6257 9592
Email: manager01@greaterwire.com