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 via among 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 focusing on with this product?
With our full-screen PV module we goal rooftop and balcony tasks within the residential and business segments. And the primary areas are Europe and Latin America. We even have gross sales in China. By way of gross sales, we’re divided roughly 40% in Europe, 40% in Latin America and 20% in China.
Our modules depart the manufacturing unit already built-in with microinverters, which makes them excellent for small tasks, just like the balcony modules we see increasingly more, particularly in Europe. When a further inverter isn’t wanted, we provide a ‘plug and play’ system, which customers can merely hook up with their residence circuits and generate energy for their very own consumption.
The system we offer has one microinverter for each two or three modules. This setup provides benefits in low-light efficiency and in addition makes a superb 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 methods obtain higher rooftop protection and technology 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 methods require meeting, and depend on modules and microinverters from totally different manufacturers that is probably not suitable with one another. one. Our photo voltaic unit achieves a 97.55% peak system effectivity, an business main quantity.
It’s also a protected system, with an power management unit that enables module degree monitoring and fast shutdown. Total, our built-in system achieves the next return on funding: the system generates extra electrical energy, and labor and set up prices are decrease.
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 amassed on the floor of the module is well washed away when it rains. We have now information from subject installations that present a rise in power yield of 6-15% because of this characteristic, and it additionally helps to scale back the prices related to cleansing the modules frequently.
Body design provides CNY 0.03-0.05 ($0.0043-0.0072) of the module value per watt, so it’s nicely value it for this degree of power 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 nicely with the microinverter to maintain currents low all through the system, minimizing temperature rise and related energy loss.
How does the price evaluate to a standard module + inverter system?
It is a little bit dearer, however most of that may be offset by simpler and quicker set up instances. For methods as much as 5 kilowatts, the price is similar. Because the methods get greater, the extra value for the microinverter begins to seem. Nevertheless, the accompanying enhance in power yield means we will nonetheless compete with among the bigger, commercial-sized installations. And that is why we concentrate on the roof markets, as a result of we will present a transparent benefit to prospects right here.
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