Will Larger Solar Module Sizes Benefit Every Person?

Feb 23, 2021 05:27 PM ET
  • As Panel Sizes Expand, Time For A Fact Check For C&I Buyers & Residential homeowners seeking Roof Solar.

The 2nd half of 2020 noted a new shift in the solar module segment, with numerous manufacturers announcing the launch of bigger, much better & higher result modules. Some have called these the next degree of technology as well as advancement, while others have actually been nonplussed in all the difficulty. But with claimed power result on these modules going across 500 W and also now, even 600W sometimes, prospective customers can no longer disregard this new change.

So to begin with, is a bigger module always the following phase of innovation progress or technology? One would certainly have to claim right here, that the easy response is no. If there is something modern technology has become related to in current decades, it is with making whatever more portable, isn't it? Technical professionals argue better technology has actually been powered by far better cell effectiveness over the last few years. This has made it possible for suppliers to install more watts per square meter, besides a decrease in every single various other basic materials for the exact same degree of output lowering total system prices. Thus development in photovoltaic panel is powered by cell-level improvement.

Developers and installers we talked with validate that large is better as long as includes greater performance, or watt per square meter( w/m2), or power thickness. That brings actual value for large, energy scale projects being used them. But these larger form elements developed for energy scale projects, may not be ideally matched for rooftop projects. Bigger is absolutely not much better in these applications-- all developed & mature solar markets like United States, Australia, Germany and Japan remain to focus on 60/66cell items in rooftop segment. The thinking is basic- convenience of installment as well as portable size and also dealing with making it the first choice for a homeowner or industrial building looking for rooftop-system.

As the largest and also highest possible expense element of the solar plant, any change in module dimensions will certainly also affect every little thing that opts for it. Be it racking systems, installation techniques, and even the software application to handle the plant and its brand-new high outcome panels. More than that, the varying dimensions of these solar panel implies that the standardisation of 60 and 72 does not hold any longer which the other element makers like invertors as well as BOS have to optimize accordingly. Thus, there is the problem of whether the other element suppliers are up to speed up with their own modifications, or behind the curve.

On the other hand, for non-utility projects, it is these benefits that come to be negative aspects too. Big company and also domestic rooftop projects for instance come with limited sizes and shapes occasionally, where actually huge modules can stop working the flexibility examination, Include in it the challenges of setup on the roofs which calls for far more robust handling as they are really cumbersome raising the actual opportunities of micro-cracks substantial With the industry hurting in between a relocate to the 182mm requirement or the 210mm criterion (for cell dimension) amongst the worldwide majors recently many companies focused on the non-utility sectors prefer to focus on efficiency, as their clients may not have the luxury of acres of area or a single minded focus on LCOE.

Also the firms making the larger modules warn that they do come with unique requirements. Therefore, while watt for watt, one can cram in even more for transportation now, the bigger module dimension additionally means special care throughout packaging and also transport, to prevent any damage. Bear in mind that pallets in operation till currently were created with a particular panel size for putting inside shipping containers.

Likewise, modules designed previously with the optimum size of human hands when installing, need to be sized for an optimum of two people to handle it easily. A one means relocation in the direction of bigger sizes is likewise not practical due to

For firms like REC Team, the Norwegian module brand name making out of Singapore, the 'bigger is much better' disagreement is not pertinent, it claims. With a concentrate on the non-utility C&I and household sector, REC has bought efficiency through its HJT (Heterojunction innovation) half-cut cells product, REC Alpha Series, that has very high cell (and module) efficiencies. The higher power density, the company thinks, will secure the need for a larger module size to a big level. Likewise, the HJT is a cell-level advancement which combines the very best of the Mono PERC as well as slim films making it a future generation innovation.

Speaking about this pattern Rohit Kumar, Director for the Indian Subcontinent, Center East & Africa at REC mentioned that "At REC we intentionally choose not be part of the race to exceed 72 cell size, as there is no end to it as well as inevitably the consumer suffers from an absence of standardisation. As a business that has actually been making advance innovation solar panels for 25 years we truly intend to provide the Indian consumers the most effective quality items that are enjoyed globally in the very same kind aspect that have actually stood the test of time, as well as which is mainly 60 cell as well as now 72 cell."

At some point it's the consumer that has to be clever here, and also fall for the attraction of dimension and higher wattpeaks without making sure that it actually is the most effective choice for her.