A solar power inverter is a device that converts the direct current (DC) generated by solar panels into alternating current (AC) suitable for use in domestic and industrial electrical grids. Since most electrical appliances and power grids operate on alternating current, the inverter is a key component of a solar energy system. Modern inverters not only convert power, but also provide overload protection, track maximum panel power rating (MPPT), and allow you to monitor system performance. There are different types of inverters such as grid-tied, stand-alone and hybrid, depending on the type of system and the user’s needs. There are several main types of inverters used in solar energy systems. They differ in purpose, method of operation and application. The choice of the type of inverter depends on the specifics of the system, the purpose of use and the budget. Inverters come in single-phase and three-phase. Here are the main categories:
1. grid-tie inverters (Grid-tie)
These inverters are designed for use in systems connected to the general power grid. They convert direct current from solar panels into alternating current synchronised with the frequency and voltage of the grid. Main features:
- Used to sell surplus energy to the grid.
- Do not operate in the absence of power supply to avoid risk to repair crews.
2. stand-alone inverters (Off-grid)
This type is used in systems that are not connected to the power grid, such as in remote areas or stand-alone facilities.
- Operate with batteries to provide power at all times.
- May include battery discharge protection functions.
3. Hybrid inverters (Hybrid)
Hybrid inverters can operate in both grid-connected and stand-alone systems.
- Combine the functions of mains and stand-alone inverter.
- Supports battery connection, allowing excess energy to be stored for later use.
Inverters: the importance of quality and reliability.
The topic of inverters can be covered on dozens of pages, but in our practice we have opted for models from SunSynk and other proven brands. These devices are characterised by high build quality, quiet operation and, most importantly, safety.
Reliability and defence.
If a customer decides to upgrade their solar system on their own and something goes wrong, SunSynk inverters handle situations beyond standard operating conditions. They can withstand overloads and wiring errors such as reversed polarity. However, it is important to remember to take precautions! The direct current from solar panels is much more dangerous than alternating current and can be life threatening if handled incorrectly.
Battery-free operation.
SunSynk inverters can function even without batteries connected. They do not fail if the batteries are suddenly disconnected, which makes them particularly convenient and reliable.
Place and conditions of installation.
The inverter, batteries and power wires are not small in size. Each project is considered individually for installation and the best place for installation is chosen taking into account a variety of factors. A clutter of units and power wires can easily compromise the aesthetics of any room, both inside and outside. The equipment requires certain conditions for installation, operating environment and this should not be neglected. If the situation is such that the inverter needs to be installed outside the house, not all equipment can be installed. It is necessary to remember about the aggressiveness of the external environment on the equipment and power communications. The sun will easily destroy plastic housings and insulation of poor quality wiring in a few seasons, and humid and salty coastal air will easily destroy any metal housing and aluminium inverter cooling radiators. It is for these reasons, we recommend to carefully study the nuances of installation, the aggressive environment will spoil not only the design, but also the operation of delicate electronics controlling power equipment.
The dangers of saving money on equipment.
We strongly advise against buying cheap or dodgy inverters. The inverter is the heart of a solar power plant, and choosing a device that only works under ideal conditions can be a costly mistake. The more the inverter requires your attention, the greater the risk of missing a critical point, leading to a breakdown. Repairing an inverter is often unprofitable due to the high cost of components and the complexity of recovery, as there are complex microcontrollers and power circuits inside the device. A reliable inverter must be able to cope with any abnormal situation. The installed solar panel system, inverter and batteries must operate consistently without the need for constant monitoring and maintenance.
Programming and monitoring.
Once the inverter is installed, our engineers adjust it to the design of the system and the customer’s needs. We take into account the rhythm of family life to minimise the risk of overloading. For example, imagine a situation where someone is ironing laundry, someone is cooking on an electric cooker, the air conditioner is running and then the boiler is switched on. These loads can lead to temporary power outages. It is difficult for the user to keep track in their mind of how much electricity each device is consuming at any given moment, and this is where proper system setup is important. We set up the solar power plant so that it operates as much as possible without user input. In contrast to large power plants with staff on duty, maximum automation is required at home.
Bottom line.
SunSynk inverters are reliable, safe and require minimal intervention. A properly configured system will provide an efficient and convenient solution for your home or commercial facility. If you have any questions, write to us, describe your situation and our engineers will advise you on solutions.
