A Dah Solar started a SolarUnit performance data collection project, a system that integrates a microinverter with 97,55% efficiency and full-screen s. The solution was installed in Dourados (MS), one of the hottest regions in Brazil, where high temperatures and dust accumulation represent major challenges for the operation of photovoltaic modules.
In order to evaluate the efficiency of SolarUnit, the initiative brought fundamental insights into the advantages of this technology for the Brazilian marketo. The engineer Germano Caires, owner of Evo Brasil Energia, received the system installation in his residence on May 8, 2024, and discussed the results obtained.
According to him, three 550 W modules from DAH Solar were used, totaling a power of 1.650 W, together with a 1.500 W microinverter. In total, the executive obtained a generation gain of 9,2% for each kWp installed with SolarUnit.
“In a direct comparison, the SolarUnit – with 1,65 kWp – generates 4,12 kWh per kWp, while a conventional system that I installed on the same roof – with four 550 W modules and a total power of 2,2 kWp – generated 3,77 kWh per kWp”, emphasized Caires.
This gain of 9,2% per kWp with SolarUnit, according to the engineer, reflects the efficiency difference in relation to conventional systems. “The product exceeded the generation expected when we designed it.”
“We believe that this performance is due to the topology of the equipment, which has modules with higher voltage and low current, meaning that the integrated microinverter does not suffer from heating caused during generation,” he explained.
Another advantage observed by the executive is that the full-screen s accumulated less dirt on the edges, considering that the region has a high degree of dirt accumulation, a factor that also contributed to the gain in energy per kWp.
“The project, with only three modules, will deliver more than 200 kWh/month in the summer. Therefore, the solution offers excellent cost-benefit due to its efficiency and practicality for installation,” concluded the owner of Evo Brasil Energia.
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