In April 2010, Sicily’s San Gabriele PV power station ramped up production and started contributing to the nation’s national grid. And thanks to our KP100L inverters and the highly professional maintenance operation, the total energy output was substantially more than the predicted for this 4MWp plant. 5 years on, and the overall plant’s productivity is still around 7 to 11% more than those original expectations.
High performance, low environmental impact
The power station has a nominal power of 4 MWp, half of which comes from fixed solar panel structures and half from tracker panel structures which enable the land to be used for both photovoltaic production and agriculture. “There are around 18m of free space between the structures and the rotation of the panels, so there are around five hectares of free land which can be used for cultivation or for pasture,” says Sebastiano Pavone, Manager of TECNOProgetEngineering, the company that designed the station and conducts management and maintenance operations. “To further reduce the environmental impact, we planted 700 olive trees around the facility, which after a few years will bear fruit,” he adds.
The long-lasting high performance of the power station is thanks to the sector-specific experience of TECNOProget Engineering and the use of our KP100L inverters. These inverters use the ZCC (zig-zag connected chopper) circuit to prevent PID (Potential Induced Degradation). PID is a reduction in performance caused by the exposure of the system to a negative potential and can have a dramatic effect on investment returns for a photovoltaic plant. It can cause a reduction in performance of up to 70%.
The industrial automation expertise of our own engineers also contributed to the power station’s success. The 226 trackers, which produce up to 36% more compared to fixed structures are managed from a PLC (Programmable Logic Controller) network and a monitoring system based on our technology which allows the real-time availability of all information relating to the plant's power and the energy generated.