Sweden Hultsfred Solar Farm

Driven by the global energy transition and the EU’s net-zero emission strategy, Sweden’s photovoltaic (PV) market has maintained steady growth in recent years. The country’s annual new PV installed capacity averages 0.6–1 GW, with approximately 1 GW added in 2024 and a moderate decline to 652 MW projected for 2025, while cumulative installed capacity has reached 5–5.5 GW. Large-scale ground-mounted PV plants are emerging as a fast-growing segment, with 100 MWp-class projects successfully commissioned across the country. In 2023, Dongguan GERITEL Electrical Co., Ltd. was awarded the cable supply contract for the 100 MWp Hultsfred Solar Farm in southern Sweden, delivering a full set of specialized PV cables and customized engineering solutions. This project perfectly resolved core pain points related to Nordic climate adaptability, grid connection, cost control, and long-term operation and maintenance (O&M), showcasing our reliable quality and technical expertise in PV wire export and Nordic PV project support, while setting a benchmark for high-performance cable applications in Sweden’s large-scale solar facilities.

1. Project Background & Core Client Challenges

Located in southern Sweden, Hultsfred Solar Farm is a landmark ground-mounted PV project initiated in 2023 and successfully connected to the grid in 2024. Designed to supply clean power to local industrial, commercial, and residential users, the project supports Sweden’s carbon reduction and renewable energy transition goals. As a 100 MWp utility-scale plant, it involves over 10,000 PV modules, extensive cable routing, and complex combiner box and inverter management. The harsh Nordic climate and local grid constraints created unique technical and operational hurdles for cable selection and deployment, making our specialized solutions the decisive factor for the client’s partnership choice.

The client faced four critical challenges:

Harsh Nordic Climate Stress: Winter temperatures plummet to -40°C, causing standard cables to stiffen and complicate on-site installation; weak winter sunlight reduces power output and extends ROI payback periods; heavy snow cover shades PV modules and dampens efficiency, while prolonged UV exposure and moisture accelerate cable aging.

Grid Connection Barriers: Southern Sweden suffers from grid congestion, with limited substation capacity risking power curtailment and delayed grid connection; voltage fluctuations threaten stable power transmission from the plant to the grid.

High Project Costs & Moderate ROI: Elevated labor, material, and logistics costs in Northern Europe drive up construction expenses; Sweden’s moderate solar irradiance (lower than Southern Europe) results in relatively longer investment payback periods.

Complex O&M for Large-Scale Plants: Widespread cable layouts and thousands of connection points increase failure risks; any cable or component fault triggers large-scale power interruptions, demanding highly reliable materials and simplified maintenance access.

After evaluating multiple global suppliers, the client selected GERITEL Electrical for our fully certified cable products, Nordic climate-adapted performance, customized end-to-end solutions, fast lead times, and cost-effective pricing – all tailored to resolve their unique operational and financial pain points.

2. Product Overview: Certified, High-Performance Cables for Nordic PV Plants

We supplied a complete cable system for Hultsfred Solar Farm, covering four core application scenarios, all engineered to meet EU and Swedish standards. Our PV cables hold TUV certification (No. B 126326 0001 Rev.00), and all other power and control cables comply with IEC international standards, ensuring unmatched reliability in extreme Nordic conditions.

2.1 PV Array Cable (PV Array Cable)

Models: PV1-F / H1Z2Z2-K (TUV/UL certified) Specifications: 4 mm², 6 mm² cross-section; 1 kV DC rated voltage; tinned copper conductor; XLPE/XLPO insulation and sheath Key Features: Operating temperature range -40°C ~ +90°C, UV-resistant, waterproof, rodent-proof, small bending radius for easy overhead installation; black jacket for outdoor durability.

2.2 Combiner Box to Inverter Main Cable

Model: YJV XLPE insulated copper cable Specifications: 16 mm², 25 mm², 35 mm² cross-section; 1 kV DC / 0.6/1 kV AC rated voltage Key Features: High current-carrying capacity, fire-resistant, suitable for overhead and underground installation (with PVC trays).

2.3 Inverter to Transformer/Grid Cable

Model:YJV low-voltage three-phase power cable Specifications: 50 mm², 70 mm², 95 mm² cross-section; 0.6/1 kV AC rated voltage Key Features: High ampacity, low voltage loss, weather-resistant, high fire rating; armored or PVC sheathed for harsh on-site environments.

2.4 Monitoring & Control Cable

Models: RVV / RVVP Specifications: 0.5–1.5 mm² cross-section Key Features: Shielded for anti-interference, suitable for outdoor and conduit installation, supporting stable data transmission for SCADA, combiner boxes, and inverters.

3. Customized Solutions: Targeted Resolution of Core Pain Points

Our technical team conducted in-depth research on Sweden’s climate, grid regulations, and project requirements, developing a full-cycle solution covering product selection, engineering design, cost optimization, and O&M support to ensure smooth project delivery.

3.1 Nordic Climate Adaptation Solution

We specified PV1-F / H1Z2Z2-K TUV-certified PV cables with a -40°C ~ +90°C operating range, maintaining exceptional flexibility even in extreme cold to eliminate installation difficulties caused by cable stiffening. The UV-stabilized, waterproof XLPE/XLPO jacket resists snowmelt moisture and prolonged sunlight exposure, extending service life by over 30% compared to standard cables. We also provided optimized cable routing and PV rack angle design to minimize snow accumulation and boost winter power generation efficiency.

3.2 Stable Grid Connection Solution

To address grid congestion and voltage fluctuation risks, we deployed high-spec YJV main cables (16–35 mm²) and grid-connection cables (50–95 mm²) with low voltage loss and high ampacity to smooth power output. Our on-site technical team collaborated closely with local grid operators and inverter manufacturers to finalize grid access plans in advance, integrate energy storage systems for power regulation, and ensure timely, stable grid connection without curtailment delays.

3.3 Cost & ROI Optimization Solution

We delivered cost-effective, low-loss certified cables to reduce material costs by 10–15% vs. local European alternatives while cutting long-term power transmission losses. Our modular construction plan allowed phased investment and deployment, easing upfront financial pressure. We also assisted the client in navigating Swedish renewable energy subsidies and tax incentives, maximizing financial support to offset lower irradiance and shorten ROI payback periods.

3.4 Reliability & O&M Efficiency Solution

All cables feature full TUV/IEC certification, with our core PV cables holding TUV certificate No. B 126326 0001 Rev.00, ensuring extremely low failure rates. We provided detailed customized cable layout drawings for easy maintenance access, remote monitoring support, and on-site O&M guidance. With pre-positioned spare parts in Northern Europe, we guarantee 24-hour emergency replacement support to minimize downtime and operational losses.

4. Quality Assurance & Delivery Execution

Quality and safety are the foundation of our project execution. Every cable undergoes strict raw material inspection, in-process quality control, and finished product testing, with full compliance reports provided for each batch. We adhere to IEC and GB 50217 cable design standards, delivering professional on-site installation guidance to eliminate safety hazards from improper routing.

Despite long-distance logistics to Northern Europe, we optimized production scheduling and supply chain management to complete the full order in just 45 days – 15% faster than the industry average – ensuring on-time delivery and keeping construction on schedule. Our dedicated logistics team tracked shipments end-to-end, providing on-site acceptance and storage guidance to support seamless construction handover.

5. Project Outcomes & Client Value

Hultsfred Solar Farm achieved full grid connection in 2024 and has operated stably since, with zero cable failures and all performance metrics meeting or exceeding design standards. Key achievements include:

Full adaptation to Nordic extreme cold, UV, and moisture, with reliable year-round cable performance;

Smooth grid connection without delays or voltage instability, cutting power loss by 8% annually;

12% reduction in upfront project costs and 1.5-year shortening of ROI payback period;

Simplified O&M and rapid fault response, minimizing operational disruption.

The client highly commended our certified product quality, climate-specific performance, and end-to-end service, noting that our solutions directly resolved their most pressing technical and financial challenges. This project solidifies our position as a trusted partner for PV wire export to Northern Europe and paves the way for future large-scale solar collaborations in Sweden and beyond.

6. Why Choose GERITEL for Nordic PV Projects?

Unlike standard cable suppliers, GERITEL combines full international certification (TUV certificate No. B 126326 0001 Rev.00 for PV cables), Nordic climate-engineered performance, cost-competitive pricing, and on-the-ground support to deliver tailored solutions for Northern Europe’s unique solar challenges. Our deep understanding of local regulations, weather conditions, and grid requirements ensures reliable, cost-effective, and compliant cable systems for utility-scale and commercial PV plants.

7. Partner With Us for Your Nordic Solar Project

Sweden’s PV market continues to expand amid ongoing energy transition, and high-quality, climate-adapted cables are critical for reliable, profitable solar operations. Dongguan GERITEL Electrical Co., Ltd. specializes in certified PV cable export and customized Nordic solar solutions, with fast lead times, full TUV/IEC certification, and proven project success across Northern Europe.

If you are developing a PV project in Sweden, Norway, Denmark, Finland, or across Northern Europe and need reliable cable solutions, contact our team today for personalized technical support, detailed product specifications, and competitive pricing.

Contact Information

Dongguan GERITEL Electrical Co., Ltd.

Tel/WhatsApp/WeChat: +86 135 1078 4550 / +86 136 6257 9592

Email: manager01@greaterwire.com