Solis Seminar- Solution For PID Recovery Updated On Fri, Jun 11th, 2021 by Saurenergy Potential Induced Degradation (PID) is a phenomenon which affects some PV modules with crystalline Si cells and leads to gradual deterioration of performance. The degradation can be as much as 30% or more after a few years. Some module manufacturers are already working to develop countermeasures by using new materials, but the general trend to […] Read more
Solis Seminar Episode 22: Solutions for Error Code “GRID INTF” Updated On Thu, May 27th, 2021 by Saurenergy The power grid is a fragile and complex system and its operation will affect connected equipment. At the same time, the abnormal operation of connected equipment will also affect it causing what’s known as, “grid disturbance”. Grid disturbance is a relatively common type of a grid-side fault. The frequency of its occurrence is second only […] Read more
Solis Seminar Episode 21: Installing AC Circuit Breakers Correctly Updated On Wed, May 19th, 2021 by Saurenergy Background Recently, a customer reported that the circuit breaker in the fuse box of the newly installed solar PV system was experiencing an abnormal arc when it was disconnected. The customer suspected that it was caused by the inverter, however, a Solis technical engineer discovered that the circuit breakers were reversed fed. After replacing the […] Read more
Solis Seminar Episode 19: How to Section AC Cable for Solar PV systems Updated On Thu, Apr 29th, 2021 by Saurenergy Background In PV systems, we need to consider three types of cables: PV cables, AC cables, and grounding cables. PV cables are usually laid outdoors and need to be protected from moisture, direct sunlight, cold temperatures, and ultraviolet. It is essential to choose PV-certified cabling, which cannot be replaced by conventional cabling(PV-Certified Cable’s UV protection, […] Read more
Solis Seminar Episode 16: Leakage Current Failure Updated On Sat, Apr 3rd, 2021 by Saurenergy Background In the last episode of the Solis Seminar series we talked about how faults can occur during wet weather, in particular the importance of “PV Isolation Protection”. In this episode, we will discuss “leakage current failure” faults and cover possible causes as well as ways to prevent the issue. We will look at a […] Read more
Solis Holds 1st Technical Seminar with 1 GW Celebration in Ahmedabad Updated On Tue, Feb 16th, 2021 by Saurenergy Ginlong (Solis) Technologies, held its first technical seminar of 2021 in Ahmedabad, India at Hyatt Regency on February 12, 2021. Solis organized the event to update and share information of its new technology that are coming up in India and its recent milestone of cross 1 GW shipments. Solis entered India in 2015, and has […] Read more
Troubleshooting Guide Abnormal Noise from Inverter: Causes and Solutions Updated On Mon, Oct 30th, 2023 by Saurenergy Background Inverters operating at high or full power sometimes exhibit abnormal noises, ranging from subtle to more pronounced sounds. What causes these issues, and how can they be resolved? This Solis seminar will analyze typical causes of abnormal noise and share effective solutions. Fault description Abnormal sounds from inverters can normally be categorized into the […] Read more
Using the Piecewise Method to Check the PV String Ground Point Updated On Thu, Jul 20th, 2023 by Saurenergy Background As the running time of PV plants increases, the DC line slowly ages, and the waterproof performance of the DC terminal (MC4 terminal) deteriorates. As a result, the insulation impedance of the DC line is too low, or the positive and negative terminals are short circuited to the ground. Either way, major failures may […] Read more
How Do Inverters Adapt To High-Power PV Modules? Updated On Tue, Dec 27th, 2022 by Saurenergy Background With the rapid development of solar cell and photovoltaic module technology, the nominal power of PV modules now regularly breaks through from 400W+ to 500W+ and even to 600W+. The rapid development and increase in power of modules has put forward new requirements for inverter adaptation. So how do you choose the appropriate inverter […] Read more
