SolarEdge - Power Harvesting and Optimization System
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SolarEdge provides next generation power conversion electronics that effectively remove the known system constraints across the photovoltaic energy space. Our Smart DC ASIC technology and active electronics enable cost-efficient increased production of clean, grid-ready energy. SolarEdge Technologies presents a unique, patent-pending distributed solar power harvesting system, comprised of the following elements:
According to Photon Magazine, summary (quoted):
“The system produced additional yield in all scenarios – even when no shadows were cast”; “When it comes to the features, everything is just right”; “Functions such as module monitoring and automatic module disconnect increase the technical safety and economic stability of the installation”.
Test result highlights:
· In unshaded conditions, the SolarEdge optimizers increased the energy output by 1.5% - 1.7%, in comparison to identical reference system without power optimizers
· Under all 16 different shading conditions the SolarEdge optimizers increased output - up to 34% more energy, compared to the reference
· The SolarEdge optimizers worked flawlessly when connected to either SolarEdge inverters or a 3rd party inverter (Sunways), providing added energy in all cases
· Photon measured 1% higher efficiency for the new SolarEdge optimizer (compared to its previous version): 98.5% on average and above 99% in some cases
· Photon emphasized the technical and economic benefits of SolarEdge’s “normally-off” safety approach (automatic module shut-down) and the monitoring portal.
SolarEdge Power Optimizer
The SolarEdge power optimizer is integrated into each module, replacing the traditional solar junction box. The power optimizer maximizes energy output from each and every module through constant tracking of Maximum Power Point individually per module. Further, the power optimizers automatically maintain a fixed string voltage, allowing optimal efficiency of the SolarEdge inverter and giving installers greater flexibility to design optimal PV systems.
The power optimizer also communicates module performance to enable module-level monitoring.
SolarEdge PV Inverter
The SolarEdge Inverter is a highly reliable DC-AC PV inverter. Because MPPT and voltage management are handled separately for each module by the power optimizer, the inverter is only responsible for DC to AC inversion. Consequently, it is a less complicated, more reliable solar inverter. The fixed string voltage ensures operation at the highest efficiency at all times (>97% weighted efficiency), independent of string length and temperature.
SolarEdge PV Monitoring Portal
A web-based application provides module-level, string-level and system-wide monitoring. The solar monitoring software automatically provides alerts for accurate fault detection, localization and remote troubleshooting at the panel-level. Module performance is communicated across existing power lines, so no extra wiring is required.
