FUSIONATECH, our trusted distributor in Cuba, recently completed the installation of an 11.5kW solar energy system for a client.
The system features 20 solar panels (575W), arranged into two strings of 10 panels each, mounted on a flat rooftop with tilted frames to maximize sun exposure.
Power from the panels is routed to a POW-SunSmart 10K hybrid inverter, equipped with dual MPPT charge controllers. Each MPPT independently manages one string of panels, helping to maximize energy production and boost overall system efficiency. Under ideal conditions, the MPPTs can handle up to 200 amps of charging current, allowing for fast, safe, and efficient battery charging.
For energy storage, the setup includes six POW-LIO48100-16S lithium batteries (51.2V, 100Ah each), each providing 5.12kWh of capacity. Connected in parallel, the battery bank offers more than 30kWh of usable energy—enough to reliably power a household or small business through long outages or cloudy days.
Important Reminder:
In this system design, it’s important to note that the power of each solar panel string already exceeds the maximum input power specified in the inverter manual. This practice should be avoided, as it increases the risk of damaging the inverter.
Oversizing solar panels—that is, installing a larger solar array than the capacity of the pv input of the hybrid inverter to compensate for reduced energy production caused by unfavorable external conditions—should only be done after consulting a professional solar team, such as FunsionaTech.
Alternatively, you can choose an inverter that officially supports solar panel oversizing. However, even with a compatible inverter, you must carefully follow the oversizing limits stated in the manual and strictly adhere to all specifications.
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