Most reacted threads

Is the Pylontech UP5000 compatible with the Steca inverter rated at 5000 watts?

When the grid enters the system to charge the batteries, what may cause the system to shut down?

Dear All, Please see the tables below for an investment in a Chinese system with lithium ion batteries and an investment in a premium quality inverter with lead acid batteries. What I have discovered is that the second option is better compared, even if it is 5% more expensive than the Chinese...

Hello all, Is it advised to install an inverter with batteries and all of the electrical accessories, including fuses and circuit breakers, in the room seen below? Note that the room is always open from the side of the camera.

The PV panels are installed approximately 20cm above the air conditioning compressor. Will this positioning affect the PV panels' performance? Additionally, there are two compressors facing each other. Could this arrangement impact the cooling efficiency? I have included an image of the setup...

Hello, Can someone expalin to me what is the difference between three split of inverter communicating together to form a 3 phase system and one inverter ?

Dear All, I would like to address an issue with the west-facing panels. During the installation process, an error was made, and the plus connection was placed next to the plus connection instead of being properly spaced. However, considering that the panels are arranged in a landscape...

The third inverter is unable to access the house's utility. is it related to a parameter? The voltage on each line is shown in the pictures above ( we are installing each inverter on each phase ) it's a three-phase system the inverter is in "load search" mode, which also indicates that the AC...

Allow me to clarify this sketch line schematic pv electricity wiring a little further. In my country, I have two sources of alternating current: a private generator (3-phase system) and a single-phase grid subscription. I'm installing a single phase inverter to provide power to my home, but...

Are the cables connecting to the selector switch commonly referred to as control cables, and do they typically have a cross-sectional area of 1.5mm²?

Could someone kindly explain why these PV panels are rusting when the data sheet states that they are resistant to salty environments? The panels are located next to the port.

Do you think the batteries' behavior is acceptable? I believe there is something strange about their performance since the reduction from the absorption phase to floating is significant, indicating that the batteries are nearing the end of their cycle.

hello, I'm trying to install PV panels on ground soil, Will the panels' rendement be affected if the soil has fallen 5 to 8 cm after 5 years?

Hello We installed a system today, but there was a communication issue between the inverters. The system consists of three inverters, one on each phase. The inverters are not communicating with one another, yet each one functions properly on its own. The three inverters are not brand new...

Hello, could someone please explain when to use the higher mounting holes and when to use the lower mounting holes shown in the figure below?

Hello all, A solar system in the Northern Hemisphere, the best orientation is the south. However, in front of my building, there is an obstruction (a building 10 meters higher than mine). what should i do please need ur help?

Do you know of a type of paint that can effectively prevent any perforation caused by electrolyte leakage in battery trays and maintain its longevity over time?

Hello everyone, I am currently in search of a charger that meets the following specifications: Battery voltage: 500-750 VDC Sunspec Modbus compliance DC PV input with Maximum Power Point Tracking (MPPT) Battery DC output, requiring a DC/DC converter Your valuable assistance in identifying a...

Hello, I asked our manufacturer why the current from the MPPT charge controller is limited with the lithium-ion batteries although in the first months of the installation the charger was able to get 10 to 30% more power out of the solar modules for example the current of the charge controller...

Good morning, I have installed a PV system at a client's house and connected the grid to the AC input of the inverter, while the generator is connected to the AC flex input to provide a backup source in case of a blackout. During testing and commissioning, we noticed that when the auxiliary...

Hello everyone, Do you know what type of pads to place below the generator to prevent any vibration effects on the slab? Do you have any pictures?

what the difference between C40 and C60a

The consultant recommends using only one twisted cable pair, for example, the orange and white orange pair, for better signal quality. The consultant's suggestion is based on scientific principles of electrical engineering and signal integrity but i didnt understand whyAs shown in the picture...

I need to conduct a test on the density of the lead-acid batteries, specifically the Sunlight RES SopZs. Sure, here are the steps you should follow to conduct the test on the density of the Sunlight RES SopZs lead-acid batteries: 1. **Preparation**: Gather all necessary equipment, including a...

Hello "I want to ask the experts on this forum: Can battery trays be created locally using subcontractors? We usually buy battery trays from the battery manufacturers, but transportation to another country is expensive. Therefore, we are considering designing the battery tray locally while still...

Hello, Could someone please tell me if the southwest direction of the PV panels with solar water pumping is good, or if the south pure direction is preferable? Because the ground area is oriented southwest, I'm installing more panels in the southwest direction. Thank you

Hello. I hope everyone is doing well. I have a new problem, and since you are all good and well-known in the solar industry, I am grateful to this site. The PV system contains a 30 amp inverter, a charger, 15kwh batteries, and ten 540w PV panels. As you may have seen, the charger is not...

What is the difference between N-type and P-type panels, and why is it preferable to use N-type more than P-type? Additionally, what is the purpose for manufacturers like Jinko to produce panels with the same capacity but different types?

Hello, can someone explain to me what's dry contact in the PV system, as I recall someone said to me the control of generator activation deactivation will be made via dry contact on the Genset circuit. A manual change-over switch is added to by-pass the dry contact if needed. Can someone please...

Could you kindly explain why the solar production graph is reduced to zero during the day? Is this due to battery calibration?