Ingeteam helped with the primary inverter-fed electroluminescence (EL) inspection of photo voltaic panels on U.S. soil. Ingeteam INGECON SUN 3Power UL C Sequence inverters have been used on Acciona’s 458-MW Purple-Tailed Hawk Photo voltaic Farm in El Campo, Texas. A complete of 18,125 modules from a pre-selected part have been inspected utilizing the electroluminescence capabilities of three of Ingeteam’s inverters, requiring simply two hours of inspection time per inverter. Quantified Power (QE) supplied a specialised digicam, drone, pilot coaching and the software program wanted to carry out the inspection and evaluation of the outcomes.
The Ingeteam testing crew
EL is a phenomenon during which a cloth emits mild when {an electrical} present is utilized to it. An EL inspection includes injecting a present into the panels in order that the photovoltaic cells emit infrared mild, which is captured by a digicam and subsequently analyzed. On this approach, micro-cracks and hidden defects on the mobile degree are recognized, permitting asset homeowners to guage the standard of their photo voltaic panels on a extremely granular degree to streamline guarantee and insurance coverage claims. This course of is utilized in laboratories and photo voltaic panel factories to find out the well being of modules. Ingeteam developed its EL performance to facilitate these inspections in giant utility-scale farms.
Electroluminescence performance is considered one of many ways in which Ingeteam has leveraged its funding in R&D to design inverters with modern applied sciences and set itself aside. By equipping inverters with this function, Ingeteam helps clients to cut back the required time for O&M inspections, with all strings being energized on the identical time as a substitute of string-to-string polarization. It additionally means better effectivity as solely inverter consumption is important vs. the necessity for added energy provides (DC and AC). Moreover, it gives a extra dependable and safer possibility as a result of the operator doesn’t have to control string field cables.
The EL inspection course of on the Purple-Tailed Hawk Photo voltaic Farm allowed Acciona to guage the well being of the photo voltaic panels at this web site in a exact, environment friendly and secure method, and the findings have supplied data that can assist optimize web site efficiency. Whereas that is the primary inspection carried out in america, Ingeteam has carried out any such electroluminescence testing worldwide, lowering the LCOE of the analyzed property. This method has already been used to optimize the efficiency and reliability of photo voltaic farms in Spain, Chile, Panama and Australia. Ingeteam inverter-enabled area inspections have achieved a throughput of as much as 40,000 modules per night time using QE’s know-how in a few of these tasks.
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