15 questions about Suncycle & SUS

1. What is the SunCycle SUS?

The SunCycle SUS transforms solar energy in a highly efficient way into thermal and electrical energy, by means of a HCPVT (High Concentrated Photo Voltaic and Thermal) technology. It is a robust and static system that is mounted on a rack. The rack is placed on a horizontal surface and consists of 20 modules. The modules are tilted and have been fitted with an internal rotating parabolic mirror that follows the sun.

2. Where is the HCPVT technology best suitable ?

The HCPVT technology works best in countries with a high DNI (Direct Normal Irradiance). Countries with a high DNI can particularly be found in the Middle East. The map below shows which other countries would be perfectly suited to use the SunCycle SUS technology:

3. How does the SunCycle SUS work?

Sunlight is captured by a fresnel lens, which directs the light onto a parabolic mirror. The fresnel lens and the mirror can rotate individually. They are controlled by  a tracking system that follows the sun as long as possible, regardless where the system is placed. The reflected sunlight is directed towards the focus point of the mirror. Here a Semiconductor based device (a so-called 3-5 Junction Solar Cell) captures the energy. The cell transforms the solar energy into electrical energy while the heat of the solar radiation is converted into thermal energy.

4. What is the output of the SUS system?

The output of the SUS is electrical energy and thermal energy. The thermal energy is contained in water laced with glycol. The heated water can be used in a closed loop system with, for example, a boiler as thermal buffer. The electrical energy is available as a DC current (and DC Voltage). This DC power can be connected to a battery and/or inverter system.

5. Is an inverter (electrical) or boiler (thermal) part of the system?

As the SunCycle SUS can be connected to any type of inverter to transform the DC power into AC power (230 VAC or 120 VAC) or boiler to store the heated water, converters and boilers are not part of the system.

6. How can I achieve the best performance with a SUS system?

SunCycle will be making and documenting a reference system, with a thermal buffer and electrical AC power output, to show and prove its performance. This SunCycle Reference System (SRS) will be well documented.

7. What are the dimensions and weight of the SunCycle SUS system?

The system has sun collection surface of roughly 4 m2. Its ground surface measures 2.362 x 2.107 meters. The rack has a tilt of 40 degrees and a height of approx. 1.9 meter. The weight of a SUS system is approximately 250 kg.

8. What are the first target markets?

First SunCycle will target the Urban markets in high DNI countries. As the SUS system is excellent positioned for working with Airco systems, the first target applications are in B2B markets like office buildings, hotels and apartment buildings. Next products on the roadmap are targeting also Rural environments and possibly more mobile markets as for example NGO missions, as well as Defence missions.

9. Can the SUU system be installed by anyone?

The first SunCycle systems will need to be installed by trained personnel from for example specialised installers.

10. How much maintenance does the SunCycle SUS require?

Once installed the system requires very little maintenance. The SunCycle SUS is made out of robust materials like injection mould plastic and stainless steel parts. This results in an inherent cost advantage over silicon based PV and PVT panels. All it takes is cleaning the surface every so often to ensure optimum performance of the mirror.

11. Will the electrical efficiency of the energy output drop with increasing temperature of the product?

Contrary to PV cells the HCPVT technology (as used in the SunCycle SUS) only drops 0.5% for every 10°C temperature increase. This is significantly less that the, on average, 5% efficiency drop for every 10°C temperature increase experienced by PV cells.

12. What is the specified energy output of the SUS system?

The SunCycle SUS has a typical Watt peak specification of 1000 Wpe and 1240 Wpth. These figures are defined at 25°C, but (due to the (required) sunlight) the working temperature of a PV panel and SunCycle SUS are in the order of 60 - 75°C.

13. How reliable is the system energy output?

Providing there is sun, the system will operate at maximum capacity. Special software ensures that the mirror and prism are always perfectly positioned to capture the sunlight. This software guarantees that the light will be directed onto the special micro cell, regardless the position of the sun. The SunCycle SUS is not affected by the adjustment of the position of the sun during season.

14. Why should I consider the SunCycle SUS system?

The SunCycle SUS is the best performing system in the world that produces electrical and thermal comfort at the same time. Any other solution to provide electrical and thermal comfort requires multiple systems that will be reliant on electricity in order to work. The dependence on electricity by the systems greatly reduces their efficiency.


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The SunCycle SUS energizing solar power system, consists of 20 units in a static configuration.
Prism and mirror in each of the units can rotate, making it possible to follow the sun.