From grid-tied to off-grid: how to choose the type of solar power station

Solar energy is becoming increasingly popular worldwide thanks to its abundance, accessibility, and environmental friendliness. In Germany and the Balkans, solar power stations are already starting to play an important role in energy production. So, how do you choose the right type of solar power station?

Solar Power Stations: Overview of Types and Equipment

Solar energy is an environmentally clean and economical solution for providing electricity to both small communities and large cities. Let’s consider the main types of solar power stations and the equipment used in their creation.

Solar energy is an environmentally clean and economical solution for providing electricity to both small communities and large cities. Let’s consider the main types of solar power stations and the equipment used in their creation.

On-grid Solar Power Stations

On-grid Solar Power Stations

On-grid solar power stations, or grid-tied systems, are the most economically beneficial. They require the least amount of equipment, and that equipment is relatively inexpensive. To assemble such a system, you will need solar panels, cables, mounting systems, and a grid-tied inverter. Grid-tied inverters are widely used, simple to maintain, and are characterized by their low cost. Some grid-tied inverters are presented on our website and, in our opinion, are the best among their competitors.

The principle of operation of a grid-tied solar power station is simple. Solar panels produce direct current (DC), which is then fed into the solar inverter and converted into alternating current (AC). After that, the AC is supplied to the consumers (all electrical appliances) connected to the local power grid. If the current is not sufficient, the required current is taken from the central power grid to which the grid-tied inverter is connected. If the solar panels generate excess current, all the excess current is fed into the central power grid.

The average payback period for grid-tied solar power stations in Montenegro is from 5 to 7 years. The more panels you install, the faster your solar power station will pay for itself.

Off-grid (battery) solar power plants

Off-grid (battery) solar power plant

Off-grid (battery-powered solar power plant) is a type of solar station used in areas that are remote from the central power grid and not connected to the energy infrastructure. For example, if you live in the mountains or on an island, or have decided to build an eco-hotel remote from the nearest populated areas, a battery-powered solar power plant is the solution for you.

The principle of operation of this station is the same as that of a grid-connected station, but lithium-ion batteries are used as the energy storage instead. This is a modern technology for storing solar energy. Gel solar batteries can be used, but they have several disadvantages, and our company does not install them.

A battery-powered station can be assembled from solar panels, cables, mounting systems, off-grid inverters, and battery banks. These components can be used separately when it is rational to do so. But it is more convenient to use “all-in-one” systems with high-voltage lithium-ion solar batteries.

“All-in-one” systems have excellent design and are extremely easy to install. They use the most modern technologies and high-voltage lithium batteries. It is worth noting that the higher the voltage of the batteries, the faster they charge. Lithium solar batteries with a nominal value of 48 volts and 51.2 volts are considered low-voltage. “All-in-one” systems from the world’s leading manufacturers are available on our website.

Hybrid – mixed-type solar stations

Hybrid - mixed-type solar stations

Hybrid solar stations are the most expensive but also the most versatile type of solar station. They combine the characteristics of both grid-tied and off-grid solar stations. To create such a system, solar panels, cables, mounting systems, a hybrid inverter, and lithium solar batteries are needed. The operation principle is the same as that of a grid-tied solar station, but before sending excess energy to the grid, the hybrid inverter charges the batteries, which are needed to power all electrical devices in the event of a power outage or failure in the central grid.

Such a system will provide you with complete energy security, and you can be sure that you will always have electricity in your home. Hybrid solar stations can be presented as all-in-one systems with a hybrid grid-tied inverter. Such systems are essential in cases where an uninterrupted power supply system is required for devices, such as in restaurants, offices, industrial plants, and agricultural farms.

The number of lithium batteries is not limited, and energy can be accumulated as much as needed. Although hybrid solar stations are expensive, they ensure complete energy security and are the most versatile. If you are looking for a reliable and multifunctional power supply system, then hybrid solar stations are the perfect choice for you.

Types of solar panel direction

Solar panel direction type refers to the way panels are installed on roofs or on the ground to maximize exposure to sunlight. There are two main types of direction: south-facing and east-west facing.

South-facing direction means that solar panels are installed in a way to receive maximum sunlight from the south. This is the most efficient way because the southern side has the highest exposure to sunlight throughout the day. This is suitable for regions with high solar activity, such as the Balkans.

East-west facing direction means that solar panels are installed in a way to receive an even amount of sunlight from the east and west. This type of direction can be useful in regions with less stable weather or low solar activity, such as Germany.

Thus, the choice of direction depends on the location of the object and the maximum efficiency of space utilization and affects the way the system is mounted.

Installation methods for solar panels

Mounting on a pitched or metal corner roof

Крепление солнечных панелей на черепичную или металлическую угловую крышу
Mounting on a corner roof

This mounting method is suitable for small private houses. It allows for a combination of panels of different sizes and orientations, but all panels must be compatible with each other.

Mounting on a flat roof

The most convenient type of installation. It is suitable for flat-roofed private houses, multi-story buildings, municipal, and industrial buildings. This system does not require additional structures and equipment.

Ground mounting

Крепление на плоскую крышу
Flat roof mounting

This type of installation is used for large solar panels, such as those with a power of 550 watts. This system requires earthworks and can be used for megawatt-scale solar power stations.

All the necessary components can be found in the catalog on our website.

Share your love