China’s DAH Photo voltaic has added a specifically designed microinverter to its Full-screen module, making the ‘SolarUnit’ a formidable providing for the rooftop PV phase. Taken by DAH Photo voltaic President Shenheng Xie pv journal by means of a few of the key options of the system and the benefits they promise as soon as put in.
With its newest launch, DAH launched a module with a built-in microinverter – which markets are you concentrating on with this product?
With our full-screen PV module we goal rooftop and balcony tasks within the residential and business segments. And the principle areas are Europe and Latin America. We even have gross sales in China. When it comes to gross sales, we’re divided roughly 40% in Europe, 40% in Latin America and 20% in China.
Our modules go away the manufacturing facility already built-in with microinverters, which makes them very appropriate for small tasks, such because the balcony modules we see increasingly more, particularly in Europe. When a further inverter is just not wanted, we provide a ‘plug and play’ system, which customers can merely connect with their house circuits and generate energy for their very own consumption.
The system we offer has one microinverter for each two or three modules. This setup presents benefits in low-light efficiency and likewise makes match for bigger roofs, permitting the modules to be put in in a number of pitches and orientations with out limiting the efficiency of one another. Because of this the programs obtain higher rooftop protection and era all through the day.
What different benefits do you see on this AC module design?
Our module and microinverter are designed for one another and equipped preassembled as a unit, whereas different AC module programs require meeting, and depend on modules and microinverters from totally different manufacturers that might not be suitable with one another. one. Our photo voltaic unit achieves a 97.55% peak system effectivity, an business main quantity.
Additionally it is a protected system, with an vitality management unit that permits module degree monitoring and speedy shutdown. Typically, our built-in system achieves a better return on funding: the system generates extra electrical energy, and labor and set up prices are considerably diminished.
The module’s full-screen design additionally guarantees to scale back cleansing prices – what are you able to inform us about this?
Our distinctive entrance body design, with no raised edge, permits water to run freely from the module. So there isn’t a water left on the floor of the module and no accumulation of mud across the fringe of the body. The mud accrued on the floor of the module is definitely washed away when it rains. We’ve knowledge from subject installations that present a rise in vitality yield of 6-15% due to this function, and it additionally helps to scale back the prices related to cleansing the modules repeatedly.
Body design provides CNY 0.03-0.05 ($0.0043-0.0072) of the module price per watt, so it’s effectively price it for this degree of vitality yield enhance.
What sort of cell is used on this module?
Beforehand we labored on PERC cells, and now we’re finishing the improve of our 5.5 GW manufacturing capability to work with TOPCon.
We reduce the cells into three items, it retains the present low. And it additionally works effectively with the microinverter to maintain currents low all through the system, minimizing temperature rise and related energy loss.
How does the associated fee evaluate to a conventional module + inverter system?
It is just a little dearer, however most of that may be offset by simpler and quicker set up occasions. For programs as much as 5 kilowatts, the associated fee is identical. Because the programs get larger, the extra price for the microinverter begins to look. Nevertheless, the accompanying enhance in vitality yield means we are able to nonetheless compete with a few of the bigger, commercial-sized installations. And for this reason we give attention to the roof markets, as a result of we are able to present a transparent benefit to prospects right here.
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