Large Scale Flat Plate Solar Collector

As the world moves toward cleaner, more sustainable sources of energy, solar technology is becoming a cornerstone of modern heating solutions. The Soletks Solar EFPC Series Large-Scale Flat Plate Collector is born from this transformation — a next-generation solar thermal system designed to deliver exceptional efficiency, reliability, and adaptability for a wide range of commercial and industrial applications.

Built with a large-area flat plate design and advanced integration technology, the EFPC Series captures more solar energy, converts it more efficiently, and delivers stable heat output even in variable conditions. This system represents a new standard for solar water and air heating in the global renewable energy market, combining innovative engineering with the practical needs of real-world projects.

The EFPC Series stands for long-term value — built to perform consistently for decades with minimal maintenance and optimal cost efficiency. Whether serving residential communities, industrial facilities, or agricultural applications, it ensures dependable heat wherever sunlight shines.

Versatile Applications — Reliable Solar Heat for Every Sector

The Soletks Solar EFPC Series offers flexible and scalable solutions that can be adapted to a wide spectrum of heating and hot water demands, from cities to industries to farms.

1. District and Community Heating
For urban or rural communities, the EFPC system provides a clean, efficient heating source that can easily integrate into centralized distribution networks. It reduces dependence on fossil fuels, helping communities achieve lower emissions and long-term energy savings.

2. Building Heating Systems
Whether for office complexes, hospitals, schools, or hotels, the EFPC collector supplies stable, high-temperature heat suitable for both space heating and domestic hot water. It supports both new green building projects and retrofit upgrades, offering strong economic returns and sustainability benefits.

3. Commercial Hot Water Supply
Hotels, hospitals, gyms, and public facilities benefit from constant hot water availability. The EFPC system ensures reliability and temperature consistency while reducing utility bills, aligning perfectly with the operational goals of commercial establishments.

4. Industrial Process Heat
For industries requiring steady heat — such as food processing, textile dyeing, or manufacturing — the EFPC collector delivers solar energy directly to production systems. It replaces conventional fuel consumption, lowers energy costs, and contributes to cleaner, greener industrial processes.

5. Agricultural and Livestock Heating
In agriculture, stable temperature control is key to productivity. The EFPC system supplies reliable thermal energy for greenhouses, livestock houses, and aquaculture facilities, extending production cycles and improving overall yields.

6. Agricultural Drying Applications
The EFPC collector can be integrated into drying systems for crops, fruits, and herbs. Its consistent thermal supply enables faster and cleaner drying compared to traditional methods, improving hygiene and increasing the added value of agricultural products.

Outstanding Advantages — Setting a New Benchmark in Solar Heating

The Soletks Solar EFPC Series redefines the standards of efficiency, safety, and cost-effectiveness in solar thermal systems. It was engineered to combine maximum energy yield with minimal operating complexity.

1. Superior Thermal Efficiency
Operating efficiently at temperatures up to 95°C, the EFPC collector achieves up to 60% higher heat collection efficiency than conventional flat plate models. This ensures greater usable energy per square meter of sunlight, resulting in higher returns for every installation.

2. Expanded Collector Surface Area
Each EFPC unit features an ultra-large panel with a surface area of 11.4–15.0 m², significantly reducing the number of connection points in large systems. This not only lowers installation costs but also minimizes risks of leakage and simplifies maintenance in long-term operation.

3. Integrated System Architecture
The EFPC adopts a high level of internal integration and external standardization. This streamlined approach means fewer components, faster installation, and easier scalability — a key advantage for commercial and industrial projects.
The design combines efficiency, safety, and automation, resulting in a system that is both high-performing and easy to manage.

4. Exceptional Cost Efficiency
Compared with traditional collector systems of similar capacity, the EFPC Series offers clear economic benefits:

· 62% less installation space: Compact design ideal for rooftop or limited ground areas.

· 64% shorter pipeline lengths: Fewer connections reduce materials, heat loss, and installation time.

· 80% faster installation process: Modular standardization accelerates project timelines.

· 60% greater energy gain: Advanced materials and optimized design improve thermal performance and shorten payback periods.

In short, EFPC collectors provide more heat, less cost, and faster returns, making them the preferred choice for high-efficiency solar heating systems in both commercial and industrial sectors.

Core Technologies — The Science Behind the Innovation

The success of the Soletks Solar EFPC Series lies in its foundation of advanced research, precision engineering, and proprietary material technology. Three major innovations define its leadership in the solar thermal industry.

1. Selective Absorber Coating — Efficiency Reaching 0.813

Soletks Solar is one of the world’s few manufacturers capable of independently producing both blue and black selective absorber coatings, the heart of every high-performance solar collector.
This vertical integration ensures superior quality control and optimized optical performance from the very beginning of production.

The EFPC Series employs a selective coating designed to maximize solar absorption while minimizing thermal radiation loss. Laboratory tests conducted by national-level research institutions confirm a thermal efficiency of 0.813, marking it as one of the most efficient flat plate collectors in the market.
This means stronger performance, even under cloudy skies or low-irradiance environments common in many regions.

2. Full-Channel Optimization Using Finite Element Analysis

Using Finite Element Method (FEM) analysis, Soletks engineers optimized the internal flow channels of the EFPC collector to achieve balanced heat distribution and enhanced energy transfer.
This precision design ensures that every part of the collector performs at peak efficiency, avoiding the uneven heating issues often seen in traditional flat plate systems.

Even under extreme temperature differences, the EFPC delivers steady, powerful thermal output. This advanced design approach has been recognized with provincial-level innovation awards, highlighting its contribution to modern solar thermal engineering.

3. Insulated Chamber Structure — Reduced Heat Loss and Extended Durability

A key highlight of the EFPC design is its “insulation chamber” — a dedicated thermal barrier layer that dramatically reduces heat loss in both operating and standby states.
With a heat loss coefficient as low as 2.2, it surpasses typical industry standards and ensures consistent efficiency even in fluctuating weather conditions.

Thanks to this innovation, the EFPC performs exceptionally well in climates with wide day-night temperature variations, maintaining stable operation and efficiency for many years with minimal degradation.

Product Parameter

Choose EFPC — Empowering the Future with Solar Energy

The Soletks Solar EFPC High-Efficiency Flat Plate Collector represents not only technological advancement but also a long-term commitment to sustainable energy. It combines intelligent design, material science, and real-world practicality to meet the heating demands of the future.

By choosing EFPC, users gain access to a system that delivers:

· Higher energy efficiency and output stability

· Lower operational and maintenance costs

· Simplified installation and flexible scalability

· Proven reliability backed by advanced material technology

For engineering companies, EPC contractors, and energy developers seeking reliable renewable solutions, the EFPC Series offers a solid foundation for building future-ready heating and hot water systems.
It is more than a solar collector — it is a symbol of innovation, sustainability, and long-term value.

The future of solar heating is no longer just an idea; it is here today.
With Soletks Solar EFPC Series, businesses, institutions, and communities can harness the sun’s power to create a cleaner, more efficient, and more sustainable world — one project at a time.