A couple 19.8kw systems side by side on a commercial premises in Yatala for two wonderful business owned by the same person (isn't it funny how good owners seem to have good businesses no matter the industry ).
We get a lot of enquiry for commercial systems, but we are very selective with who we work with and where they are placed. However, if the business is daytime power use based, they really are essential and often pay for themselves well within 2 years.
These are the gold mines for a business with bills roughly 3 to 6 thousand per quarter. Due to the daily usage, we can tailor them so that just about every kw is used, giving a much higher return on investment. In circumstances like the one we are currently discussing, they also allow you to feedback on your excess kws, as you can give feedback up to 5kws per phase. These commercial buildings are almost always three-phase, so the 19.8kw of panels and a 15kw inverter are the perfect combination.
The products used here are also essential at this size. You don't want to have any issues, and you want to maximize output for your return on investment. So, in this instance, we've found the Sungrow 15kw to be the best available by a long shot in terms of value for money.
For the panels, the dual glass Seraphim 440s are the bee's knees at the moment. Seraphim isn't the most expensive brand on the market, and it's not always a panel we recommend, but in this instance, it's just the perfect mix of value for money and quality. Usually, regardless of the brand, dual glass is superior as it's just manufactured at a much higher standard than regular Dupont panels, especially in the heat.
If you would like to know more about small commercial systems and why we avoid large commercial solar, please do not hesitate to give us a call. We can explain what we do.
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