WATTSTUNDE® WS175SPS-HV DAYLIGHT Sunpower solar module 175Wp

SunPower Back-Contact high-performance module 175Wp 24 V- High-power solar cell meets back-contact process

The WATTSTUNDE® SPS modules are significantly smaller and lighter than conventional 175 watt modules and offer a high efficiency of over 24% thanks to the back-contact technology. They are therefore ideal for mobile use in mobile homes, in garden houses and all other 12V solar island systems that require maximum power in the smallest possible space.

The abbreviation HV stands for “high voltage”.

88 cells instead of the usual 32 cells promise yields even in unfavorable light conditions, so that MPPT charge controllers can work optimally here with their maximum power point technology. In unfavorable diffuse light conditions, conventional solar modules only deliver a low voltage that is no longer sufficient to charge the battery. By increasing the number of cells and the associated increase in voltage, it is ensured that even in low-light seasons the voltage is sufficient to catch the last rays of sunshine. Another advantage: With the same performance, an increase in voltage results in a reduction in the current load on the cables. The high operating voltage reduces cable losses and allows work to be carried out with smaller cable cross-sections.

Special features at a glance:

• 175 Watt HV solar module
• Higher efficiency of over 24%
• SunPower high performance back-contact cells
• Less weight and less area than conventional solar modules
• ESG anti-reflective glass
• Bypass diodes integrated
• Junction box with IP65
• Pre-wired with 90cm and MC4 connectors (+ / -)
• Easy connection of multiple modules thanks to MC4 connector
• Performance guarantee 25 years
• Product warranty 5 years

The WATTSTUNDE® SP solar modules are equipped with back-contact Sunpower cells, which have a significantly higher cell efficiency than normal monocrystalline or polycrystalline solar modules, thus ensuring a higher energy yield and saving volume and weight!

The modules are enclosed in a sturdy hollow chamber profile frame and promise maximum stability, even under extreme conditions.
Thanks to their anti-reflective glass, the modules let through significantly more light and therefore ensure a higher transmission than other modules. The efficiency of the monocrystalline SunPower solar modules is 24%. The modules are equipped with a cable connection and MC4 connectors at the factory to simplify the connection of several modules.

Back-contact technology allows the cell to absorb more light and convert the additional absorption into electrical energy.

In normal polycrystalline or monocrystalline modules, you can clearly see the running, usually silver contacts (cell connectors) on the surface of the cell. These contacts are not present in back-contact modules and thus prevent shading of the cell and therefore contribute to a higher efficiency.
Thanks to the integrated bypass diodes in the junction box, the module can continue to produce power even in shade or low light conditions.

The solar modules of the WATTSTUNDE® WS-SP series are high-quality modules with monocrystalline SunPower cells that always promise top results and a high energy yield. They can be installed and used in any self-sufficient battery application such as in mobile homes, garden houses, camping, island systems and all off-grid systems.

Further information
In addition to a 12V battery, you also need a charge controller that prevents the power supply and thus overcharging or, if necessary, deep discharging of the battery. This also ensures an optimal charging voltage and guarantees the necessary reverse current protection at night.
You can find our range of charge controllers here .
Another question that often arises is how to mount the new solar panel properly. We have various brackets, fastening systems and retaining spoilers for mounting on a motorhome, house wall and many other options.
Please take a look at our fastening systems category.
Of course, we have already put together complete solar sets for you to meet a wide range of requirements. In addition to the modules and brackets, these sets contain all the materials required for installation, such as connecting cables, adhesive, sealant and roof penetrations.
Further information can be found in the Solar Complete Set category.

Technical data WS175SPS-HV