How high is DAS Energy's production capacity?

Our annual production capacity is currently for panels capable of producing 55 MW and is continually be scaled up.

Can I acquire a turnkey module factory on a licensing basis?

Yes, DAS Energy's main product are (licensed) turnkey PV module factories. We are currently engaged in discussions with potential investors in various countries. More information is available on request.

What are your delivery times?

Delivery times for our modules are around 8-12 weeks for smaller quantities. We may be able to agree a shorter delivery time on request.

What technology is used in the DAS Energy modules?

The technology used in the modules was developed in-house, and consists primarily of a proprietary fibreglass-reinforced plastic core (pre-preg). This layer is located above and below the cell and is the primary reason for the DAS modules' flexibility and stability. Traditional crystalline cells are used in the modules. More information available on request.

Are DAS Energy PV modules suited for use in very hot environment (e.g. deserts)?

Yes, the modules are well-suited to use in hot regions. Heat dissipation from the top of the module is very efficient, as there is no glass layer. The module is made of materials that are more heat-resistant that traditional glass panel modules, and thus able to withstand higher temperatures. High heat still has a negative impact on the amount of energy that is generated (the same negative temperature coefficient as other modules using crystalline cells), but the modules will not break as a result of the higher thermal conditions.

Can you produce coloured modules?

Yes, coloured modules can be produced in two ways:

 

  • By using coloured crystalline cells. Available colours include gold, red, green, brown etc.

 

  • The laminate can be white and grey, although other colours are technically possible.
What cells are used in flexible modules?

Crystalline silicon cells (both monocrystalline and polycrystalline).

What is the bend radius with crystalline cell materials?

Our default modules have a bend radius of 200 cm. However, we offer specialise module constructions (fewer and thinner fibreglass weave) for rounded surfaces that allows a bending radius as low as 15 cm.

What sizes are the DAS Energy PV modules available in?

We offer modules ranging from 6 x 1 cells up to 11 x 6 cells. Please note that custom-tailored solutions can cost more. Our production facilities can manufacture laminates up to 4.9 x 2.0 metres in size (although a module width of more than 1.2 metres is often not possible/advisable due to the electrical connections and size limits of the sheet).

What are the electrical characteristics of the DAS Energy modules and how much power they deliver?

The power, voltage and current depends on the size of the module and type of cell used. We produce modules that can deliver between around 20 and 330 Wp, which corresponds to about 165 Wp/m2 (monocrystalline modules). If you have any specific questions on this subject, please get in touch.

What is the lifetime of a DAS Energy PV module?

Our first certified modules have been in use without issues since 2014. As the fibreglass materials used in our construction come from the aviation industry and have withstood enormous wear for over 25 years, we provide a 40 year performance guarantee (85%) on building-applied and building-integrated modules. Our modules are tested in numerous environmental simulations (e.g. UV resistance, climatic chamber etc.).

Where is the junction box positioned?

Depending on your requirements, the junction box can be attached to either the top of bottom of the module.

Wie erfolgt der Auslass der Ribbons bzw. die Isolierung bis zur Dose?

As with traditional modules, the junction box is grouted and glued with adhesive silicone sealant.

What is the nominal operating cell temperature (NOCT) of polycrystalline and monocrystalline modules?

The NOCT of both polycrystalline and monocrystalline modules is 54.5 Celsius. 

Can DAS Energy PV modules be used with a traditional mounting system?

No, there is no mounted version of the standard module, as the main application for these modules is being glued directly to the roof.

What is the module's fire behaviour?

The laminates are certified according to fire resistance class C IEC 61730-2 and BROOF(t1) according to EN 13501-5. Fire classification class C s2 d0 according to EN 13501-2 (this information is purely informational as no certification has been awarded but indicative pre-tests have been completed).

How much space is required for 1 kWp power from DAS Energy PV modules?

Due to being glued directly to the roof, space is used more efficiently than with traditional mounted modules. Mounting requires larger row spacing of the modules to prevent modules from casting shade. This is not an issue with our modules, which are just 2 mm high and the end-to-end arrangement means shade is not an issue. This results in an output of 1 kWp per 7.77 m2.

How can DAS Energy Modules be affixed?

DAS Energy modules can be glued, screwed or riveted to the surface. Modules can also be secured using magnets and quick-action locking systems. We recommend gluing the modules.

What do I need to take into account regarding inverters, lightning protection and grounding?

Our modules conform to safety class II according to IEC 61140 and safety class A according to IEC 61730 and do not require grounding. The DAS Energy module does not have conductive frames, and therefore cannot be integrated into any existing lightning protection measures. Inverters can be used with or without transformers. Consult the guidelines provided by the manufacturer of your inverter. 

What temperature ranges have you tested?

Our products have been successfully tested across the entire temperature range from -40 bis +85°C and are IEC certified.

What effect does dirt have on the DAS Energy PV modules?

The front sheet is made of ETFE (Ethylene tetrafluoroethylene). Its material properties have proven successful in architecture (e.g. the Allianz Arena in Munich). EFTE is highly dirt-repellent and allows the modules to be used on flat roofs with a very low gradient.

How and how often do the DAS Energy PV modules require cleaning?

How often the modules require cleaning is highly dependent on how it is installed and the location (type and intensity of air pollution). Flat roof modules need to be cleaned more frequently depending on the roof's gradient. We recommend simply cleaning with water roughly once or twice per year depending on the level of dirt. Avoid pressure washing.

Have you performed weathering tests (UV long-term stability tests)?

The sun's rays can – in combination with heat and humidity – cause material changes and reduced efficiency over time. We therefore subject our DAS Energy modules to the most rigorous tests and simulations of adverse weather conditions. One example is artificial weathering in a laboratory xenon test chamber. This process comes from the lacquering and automotive industry and is used to test the lifetime of sheets under the influence of the sun's rays. Depending on the test standard, 1,000 to 1,600 hours in the test chamber correspond to the actual environmental and radiation exposure of five years in a temperate central European climate (ISO 16474-2) or 1-2 years in climate zones exposed to more intensive radiation, such as Florida, Arizona or the Kalahari desert (PV3929). Various parameters such as transparency, discolouration and gloss are measured upon completing the tests and compared to the initial values. DAS Energy solar modules continue to meet the test requirements even after repeated test cycles (corresponding to 50-60 years in central European or 10-12 years in high exposure climate zones). This provides you with the security of knowing that you will continue to benefit from high efficiency and energy yields after many years of use.

How resistant are the modules to aggressive conditions, e.g. saltwater and ammoniac?

Our robust design is resistant to aggressive environments. The DAS Energy modules have been successfully tested against the effects of substances such as ammoniac and saltwater.

Are your products able to withstand hail?

Our products can withstand hailstones, which is a requirement for receiving our IEC certification.

How do DAS Energy PV modules react to shade?

As with conventional modules, shade should be avoided. If shade is encountered, all modules have bypass diodes that disconnect the shaded modules to minimise output losses. In low lighting conditions, the light trapping effect means DAS modules offer a higher output.

Are the DAS Energy PV modules patented?

Our product is patented. More information available on request.

Do you offer guarantees on DAS Energy PV modules?

We offer guarantees that depend on the field of applications as follows:

 

  • BIPV & BAPV:We offer a 10 year production guarantee (covering material defects and production errors). We also offer a 40 year performance guarantee (at least 97% of the nominal output within the first year and a minimum of 85% of nominal output after 25 years)

 

  • Mobile and specialist applications: We offer a 5-year guarantee (covering defects and production errors). We also offer a 40 year performance guarantee (at least 97% of the nominal output within the first year and a minimum of 85% of nominal output after 25 years).