Out of the Shadows: Sungrow’s Global MPPT Boosted a Brazilian Home's Solar Output by 24%
System Size:
6 kWp
Capacity:
7 GWh
Inverter Model:
SG6.0RS-L
The Background
Mato Grosso, Brazil—a place where the sun shines all year-round—seems like the perfect location for a residential solar project. However, even here, intermittent clouds, neighboring structures, or the roof's own design can lead to partial shading, reducing the efficiency and effectiveness of residential solar systems.
The Challenges
The primary challenge for this project was shading. While the site had excellent solar irradiance, the building's own rooftop was responsible for partial shading during crucial morning hours. This resulted in lower energy production and, consequently, a lower return on investment.
The Solution
During a site check, the Sungrow team identified the issue and recommended enabling Global MPPT, a proprietary and patented technology designed to improve inverter performance in shade-prone conditions. Unlike conventional MPPT algorithms, which can get “stuck” during shading, Sungrow’s Global MPPT intelligently and actively scans all connected strings to lock onto the global maximum power point (GMPP)—ensuring optimal output even when some modules are shaded. The client was quick to report a noticeable jump in performance. Post-activation, daily energy generation increased from 21 kWh to 27 kWh—a nearly 29% increase.
The Impacts
After enabling Sungrow's Global MPPT, the system's daily energy production reached 27 kWh. This represents a gain of nearly 29% compared to conventional MPPT technology under the same shaded conditions. This increase in production translates directly to financial savings. The total energy value is approximately R$900 (~$165 USD) per month, with the improvement from the Global MPPT feature alone accounting for an additional R$180 (~$33 USD) in monthly savings.
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