1. Current

What is the electrolytic bath?

The electrolytic bath is the core carrier for the electrolysis of water to produce hydrogen. Generally, the structure of the electrolytic bath is divided into three parts—the main body, anode and cathode. With direct current applied to the bath, oxidation reaction occurs at the interface between the anode and the solution, while the reduction reaction occurs at the interface between the cathode and the solution.

Bifacial module layout

  1. Frame
  2. Front panel glass
  3. EVA/POE
  4. Solar cell
  5. Back panel glass
  6. Sealant
  7. Terminal junction box
  8. Nameplate
  9. Mounting hole
  10. Grounding hole
  11. Drain hole
  12. Barcode The specific layout corresponding to each specific module type is shown in the relevant product manuals.

What does the current classification labeling mean?

Modules are classified by rated current, with the information found on the attached labels.

Please explain the differences in CLASS A/B/C/2 between new and old documents?

The identifiers of classes of application/protection are: Protection Class: Class Ⅱ (new) = Application Class: Class A (old). The reason to change such identifiers is the change in the standard of certification in the industry. Both the new and old identifiers are available to us, where new or old identifiers to be adopted will depend on the demands of customers for different orders (with new identifiers as default).

What is the effect of shading on energy yield?

It is not clear whether hotspots will be formed due to the effect of shading above the modules. Of course, there will inevitably be an effect of shading on the energy yield.

Will the energy yield be influenced by installation via perforation and welding?

Perforation and welding are not recommended installation practices since they may damage the overall structure of the module, resulting in a degradation in mechanical loading capacity, which may lead to invisible microcracks in the cells modules and eventual negative impacts on the energy yield.

How is the energy yield of a PV power plant calculated?

Dedicated software like PVsyst and RETScreen Expert is used to calculate the energy yield of a PV power plant. As residential projects, Excel or other spreadsheet can be used for a simple estimation, using the. Following calculation: Ep (annual energy yield) = H x P x K1, where H represents the standard daily hours of sunshine in location regions, P represents the installed capacity of the system (kW), and K1 represents the overall efficiency of the system (75-85%). There are many factors that influence the value of K1, including azimuth of installation, inverter efficiency, module degradation, string arrangements, module soiling, etc.

What are the necessary documents for warranty?

  • Information about distributor of products (name of company, contact person)
  • Information about modules (quantity, nameplate, barcode)
  • Agreement or procurement contract

How does one apply for warranty in case of damage to a module, a power generation failure and other issues?

For any products directly purchased from APEX, please contact our salespersons. For the products directly purchased from our distributors, place directly contact their representatives who will provide after-sales services. If the relevant problems still cannot be solved satisfactorily through the two ways above, please send us the contracts used to purchase the modules, warranty documents and specific details about the problems with the modules, and we will direct your information to the relevant departments.

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