FIMER, leading manufacturer of renewable energy solutions, has provided 16 PVR-65-TL three-phase string inverters, S2 model, to Tops Energy Srl, an independent company specializing in Operation & Maintenance (O&M) services and advanced technical solutions for photovoltaic plants.
The inverters are installed in two twin photovoltaic systems with a capacity of 1 MW each, located on the outskirts of Brindisi and featuring similar electrical and mechanical architectures.
The project
Tops Energy Srl specialists managed the entire revamping project, which involved the replacement of four 250 kW central inverters, by a different manufacturer, which could no longer be repaired.
One of the technical peculiarities of the project was to proceed with the revamping by exclusively replacing the low voltage (LV) components, while maintaining the existing medium voltage (MV) infrastructure, including the transformers with a secondary voltage at 275 V.
The FIMER PVR-65-TL inverters were chosen because they can operate effectively in this specific technical context.
The solution
PVR-65/75/80-TL is the new platform by FIMER designed for the efficient revamping of photovoltaic systems equipped with central inverters with output voltage from 270 Vac to 320 Vac.
These three-phase string inverters with power sizes from 65 to 80 kW, maximize the return on investment in large existing PV systems while enjoying all the advantages of a decentralized setup. Thanks to a structure with up to 6 MPPTs, the energy production is optimized even in shading conditions.
The high-power module and the compact size assure further savings for installation and in logistics and in maintenance; the standard wireless access from any mobile device, the built-in User Interface (UI) and the installer mobile APP simplifying multi-inverter installations, make the configuration of inverter and plant easier and faster.
The model chosen for this revamping intervention is PVR-65-TL, S2 type.
Main features include:
available with 6 independent MPPTs)
Aldo Sciscioli, Director at Tops Energy, commented: "The plant has improved its Performance Ratio (PR), which had previously been affected by the frequent shutdowns of the old inverters. This result was achieved without replacing the photovoltaic modules, despite significant complexities at junction box level.
The improvement will continue in the coming months, thanks to the gradual resolution of anomalies that had gone undetected due to the lack of effective insulation monitoring on the DC side before the replacement of the inverters."
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