SolarEdge Technologies is presenting its next generation of module power optimizers and a unique string monitoring combiner box with ground fault detection and interruption (GFDI) per string, at Intersolar Europe 2011, in Hall B4, Booth 310. Smart modules optimized by SolarEdge will be presented at the show by some of the world’s leading module manufacturers. The company will also present its extended line of single-phase and three-phase solar inverters.
Problem
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Increasingly, the focus on conventional PV inverter performance and reliability is due to the need to offer the maximum IRR on projects, regardless of size. Module power optimizers are becoming increasingly sophisticated to offer improved efficiencies and higher reliability. The next phase in technology development will be the full integration to create a ‘smart module’ concept to further reduce BOS.
Solution
SolarEdge’s new generation of power optimizers boasts record efficiency of 99.5% (98.8% EU weighted efficiency). The power optimizers are claimed to enable production of up to 25% more energy and faster return on investment in residential, commercial and large-scale PV systems, through module-level MPPT and monitoring. With a new, highly efficient ASIC chipset and 32% lower part count, the new power optimizers are not only more efficient but are also 40% smaller in size. Selection of cutting-edge components and improved dynamic control are combined with an enhanced per-module MPPT algorithm that dynamically tracks the global maximum operating point for both modules and inverter, enabling higher power optimizer efficiency and improved system performance, both with and without mismatch or partial shading conditions. The SolarEdge string monitoring combiner box with internal disconnect per string and automatic ground fault detection and interruption (GFDI) provides improved safety, performance monitoring and control for commercial and large-scale PV sites. Ground leaking strings are automatically alerted and isolated through up to 64 individual string disconnects, controlled and monitored locally and remotely, ensuring safety without interference to the performance of other strings or of the solar inverter.
Applications
Various models will support residential, commercial and large-scale installations.
Platform
Warranted for 25 years, the new power optimizers are enhanced with SolarEdge’s ‘SafeDC’ features: automatic electric arc detection and termination, and automatic module shutdown in case of inverter or grid shutdown. The SolarEdge inverters (98% maximum efficiency) are specifically designed to work with power optimizers, which maintain a fixed string-voltage to enable optimal inversion at all times. The range of SolarEdge PV inverters is now extended to include 3kW, 3.5kW, 4kW, 5kW and 6kW single phase inverters, and 7kW, 8kW, 9kW, 10kW and 12.5kW three phase inverters.
Availability
June 2011 onwards.