Kanye Solar PV Project in Botswana – a 50MW photovoltaic power plant

In 2023-2024, Dongguan GERITEL Electrical Co., Ltd. had the privilege of partnering with one of Africa's most ambitious renewable energy developments—the Kanye Solar PV Project in Botswana. This 50-megawatt photovoltaic power plant represents a significant milestone in Southern Africa's transition to clean energy, and we were honored to serve as the primary cable supplier for this landmark installation.

Located in the Kanye region of Botswana, this utility-scale solar farm spans hundreds of hectares of semi-arid terrain, where temperatures regularly exceed 40°C and UV exposure is relentless. The project demanded not just volume—over half a million meters of specialized cabling across multiple specifications—but uncompromising quality standards that could withstand Africa's harshest environmental conditions for decades.

Understanding the Challenge: Why This Project Demanded Excellence

When our engineering team first engaged with the project developers, several critical concerns emerged that would define our approach:

Environmental Extremes: Botswana's climate presents unique challenges. The cables needed to resist intense ultraviolet radiation, withstand temperature fluctuations between scorching days and cool nights, and maintain integrity in dusty, occasionally wet conditions. Standard industrial cables simply wouldn't survive.

Certification Requirements: As an international project with European engineering oversight, every component required full IEC compliance. The photovoltaic cabling specifically needed TÜV certification—non-negotiable credentials that many suppliers struggle to provide authentically.

Scale and Complexity: With dozens of inverters, hundreds of combiner boxes, and thousands of panel strings, the logistics of delivering the right cables to the right locations at the right time required military precision. Any delay would cascade through the construction schedule, costing thousands of dollars daily.

Long-term Reliability: This facility is designed to operate for 25+ years. The client needed absolute confidence that their cable infrastructure wouldn't become a maintenance liability or safety hazard as the plant aged.

Our Tailored Solution: Engineering Success Cable by Cable

Drawing on our extensive experience in solar farm installations across three continents, GERITEL developed a comprehensive cable specification that addressed every project phase:

Phase 1: Array-Level DC Distribution

The photovoltaic arrays required robust DC cabling to connect panels to combiner boxes. We supplied:

2×6 mm² H1Z2Z2-K: 180,000 meters for standard string configurations

2×10 mm² H1Z2Z2-K: 220,000 meters for longer string runs and higher current capacity requirements

Why H1Z2Z2-K? This TÜV-certified photovoltaic cable features electron-beam cross-linked insulation that maintains flexibility at temperatures ranging from -40°C to +90°C. Unlike standard PVC cables that crack and degrade under UV exposure, the H1Z2Z2-K's specialized compound resists weathering for the installation's full lifetime. The double-insulated design provides additional safety against ground faults in wet conditions—a critical consideration during Botswana's rainy season.

The 2×10 mm² H1Z2Z2-K specification proved particularly valuable for the project's eastern arrays, where longer cable runs between panel rows and combiner boxes demanded lower voltage drop. Our engineers conducted detailed load calculations to optimize the mix of 6mm² and 10mm² conductors, ensuring technical compliance while controlling costs.

Phase 2: Internal Power Distribution

Within the inverter stations and control buildings, we provided flexible single-core solutions:

H07V-K 1×16 mm²: 45,000 meters for control cabinet wiring and auxiliary circuits

H07V-U 1×25 mm²: 38,000 meters for main power distribution within substations

The H07V-K's fine-stranded copper construction allowed installers to route cables through tight conduit bends without damage, while the H07V-U's solid conductor design provided optimal termination reliability in main distribution panels. Both specifications feature halogen-free properties, enhancing fire safety in enclosed electrical rooms.

Phase 3: External Transmission Infrastructure

For the critical connections between inverters and the main substation—where mechanical protection and burial capability were essential—we delivered:

SWA Cable 4×95 mm²: 25,000 meters of steel wire armored, multi-core power cable

This medium-voltage specification features galvanized steel wire armor providing exceptional crush resistance for direct burial installation across the solar farm's terrain. The 95mm² cross-sectional area accommodated the aggregated output from multiple inverter clusters, while the four-core configuration provided three-phase plus neutral connectivity for the plant's 33kV step-up infrastructure.

Quality Assurance: Certifications That Build Confidence

What distinguished GERITEL from competing bids wasn't merely competitive pricing—it was our comprehensive certification portfolio that eliminated the client's compliance concerns:

IEC 62930 & TÜV Certification: Our H1Z2Z2-K cables carry full TÜV Rheinland certification to IEC 62930 standards, verifying performance in UV resistance, thermal endurance, and mechanical durability. These aren't self-declared claims—they're independently tested and continuously audited.

IEC 60502 Compliance: The SWA Cable 4×95 mm² meets stringent international standards for armored power cables, ensuring safe medium-voltage transmission in underground installations.

ISO 9001 Quality Management: Our manufacturing facilities operate under rigorous quality systems, with batch testing and full traceability from copper rod to finished cable.

These certifications meant the project engineers could proceed with confidence, knowing inspection agencies would find no compliance gaps that could delay energization.

Execution Excellence: Delivering Five Football Fields of Cable

The Kanye Solar PV Project's cable requirements filled four 40-foot shipping containers—a logistical operation requiring precise coordination across manufacturing, quality control, and international freight.

Production Timeline: Upon contract signature, our production facilities dedicated three parallel manufacturing lines to ensure the 500,000+ meter order completed within eight weeks. This represented approximately 15% of our monthly capacity—a commitment we maintain exclusively for substantial renewable energy projects.

Quality Verification: Every drum underwent electrical continuity testing, insulation resistance measurement, and dimensional verification before shipment. We provided comprehensive test reports and material certifications for every batch, organized by installation zone to simplify site logistics.

On-Time Delivery: Despite global shipping congestion in 2023, our established freight partnerships ensured the complete consignment arrived at the Port of Durban and cleared customs for road transport to Botswana within the project-critical window. The site team received cables exactly when trenching and installation crews were ready—no costly storage, no weather damage, no schedule delays.

Project Outcomes: Powering Progress

The Kanye Solar PV Project achieved commercial operation in early 2024, delivering clean electricity to Botswana's national grid and reducing the country's reliance on imported power. Our cable infrastructure performs flawlessly across the facility, from the individual panel strings to the grid connection point.

Technical Performance: Post-commissioning thermographic surveys show no abnormal heating at cable terminations. Insulation resistance testing confirms all circuits meet or exceed design specifications. The H1Z2Z2-K cables show zero degradation after 18 months of intense UV and thermal cycling.

Installation Efficiency: The project electrical contractor reported 15% faster installation compared to previous solar farms using uncertified alternatives, attributing the improvement to our cables' consistent dimensions, clear meter marking, and reliable stripping characteristics.

Why Developers Choose GERITEL: Beyond the Product

This project exemplifies three core advantages that renewable energy developers increasingly recognize:

1. Certified Reliability: In an industry plagued by counterfeit certifications and substandard materials, our independently verified IEC and TÜV credentials provide genuine risk mitigation. We maintain open-book certification documentation and welcome third-party factory inspections.

2. Solar Specialization: Unlike generalist cable suppliers, we've delivered over 2 million meters of photovoltaic cabling across utility-scale projects in Africa, the Middle East, and Southeast Asia. We understand the unique demands of solar installations—from double-insulation requirements to MC4 compatibility considerations.

3. Responsive Partnership: When the Kanye project encountered unexpected foundation delays requiring adjusted delivery schedules, our team reconfigured logistics within 48 hours. We don't just supply cables; we adapt to project realities.

Your Next Project Starts Here

The Kanye Solar PV Project demonstrates what's possible when technical excellence meets dedicated partnership. Whether you're developing a 5MW distributed generation facility or a 500MW solar park, GERITEL delivers the certified cabling infrastructure your project demands.

Contact our renewable energy specialists today:

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

Let's discuss your cable specifications, review our certification documentation, and develop a delivery schedule that keeps your project on track. From 2×10 mm² H1Z2Z2-K to heavy-duty armored transmission cables, we have the products, certifications, and experience to power your success.