Inverters
The market offers us a really wide selection of different types of inverters. let's find out which ones are the best and what they are good for.
Our choice - the most trusted inverters on the market.
The inverter (or inverter) is one of the most important elements of a photovoltaic installation. It must meet stringent work quality requirements and have the appropriate certificates. Choosing an inverter is not easy. There are many parameters that are almost constant, e.g. efficiency or power gradation, but there are also those that cause significant differences and affect the choice. We take into account several important criteria on which we base our selection. The most important thing for us will be failure-free operation, then the warranty conditions and the user interface - it is important because, observing the operation of the installation every day, we want to navigate in a clear and tidy application. The inverters that meet all these criteria are SOFARSOLAR products and we base our 90% installations on them. At the investor's request, we are able to order and install any inverter available in the country. Below we present the most frequently installed inverters.
Choose an inverter perfectly suited to your needs
We have a really large number of different types of inverters on the market. We will find microinverters, uninterruptible power supplies, single and three-phase inverters, grid or hybrid inverters, with mechanical and convection cooling. Choosing the right one may not be straightforward. Below we have prepared for you a short summary of the different types of inverters, so that you know what is available on the market and where they can be used
grid inverter
Grid inverter is a device that works only when it has a connection to the power grid and is synchronized with its frequency. Such an inverter will not work if the power company turns off the electricity - even if the sun is shining!
Usage: Most often used in home photovoltaic installations
Advantages: High maximum power, currently up to 450 Wp, high efficiency already exceeding 20%.
Defects: Due to the black color of the cells, these modules heat up more and there may be a decrease in efficiency.
Hybrid inverter
Used wherever an energy storage is installed or planned in the future. It is an inverter that does not stop working in the event of a power outage, but starts transferring energy from the battery bank. There are also solutions that allow you to produce energy directly from the sun without the medium in the form of batteries.
Usage: Used primarily together with energy storage.
Advantages: Energy independence. Possibility to work in the event of a power outage.
Defects: Quite a high price compared to grid inverters.
1 phase inverter
Single-phase inverters are most often used in two cases: we have a single-phase connection at home or we want to install modules on three slopes of the roof, e.g. east, south, west and we do not want to invest in an expensive inverter with 3 MPPT.
Usage: When we have a 1-phase installation at home.
Advantages: The possibility of installing 3 single-phase inverters replaces expensive inverters with 3 MPPT
Defects: No phase-to-phase balancing prolongs the return on investment
3 phase inverter
The 3-phase inverter is designed for installations where there are three phases of alternating current. It is the most frequently chosen type of inverter in Poland. It can be networked or hybrid, as we have already discussed above. It can have mechanical cooling with fans or convection cooling, giving off heat through an aluminum radiator.
Usage: In houses and in ground installations, it often has an IP67 degree of protection
Advantages: Can be used in 3-phase installations
Defects: These inverters often only have 2 MPPT
Microinverter
An increasingly popular solution with many advantages during assembly and operation. This solution allows the AC cables to be led directly to the roof - saving space in the garage. No DC protection - cost saving. For an installation consisting of 20 modules, 4 microinverters can be used, which even allows you to obtain 4 independent roof planes.
Usage: In roof and ground installations.
Advantages: Lower installation cost, save space
Defects: Electronic components exposed to the weather.
Ups
Emergency power supplies are used primarily to protect the operation of devices in the home or office during frequent power outages. They operate during a power outage and supply electricity from the energy storage that is connected to them.
Usage: Uninterruptible power supplies are used in homes or offices to protect critical devices from network loss.
Advantages: Quick changeover time. It has a solar charger for batteries.
Defects: Narrow application area. There is no possibility to transfer electricity to the grid.
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