Systems that are not connected to the grid are called off-grid systems.
✔️ 100% independent, renewable and clean energy production system.
✔️ There are only initial investment costs.
✔️ Operating costs are close to zero.
✔️ High efficiency, low electrical losses in the system.
✔️ Easy and fast installation possible.
✔️ It is not affected by electricity price increases.
✔️ The system can be expanded with additional equipment according to energy needs.
Systems that are not connected to the electrical grid are called off-grid systems. These systems are usually preferred in chalets, vineyards, plateau homes, farms, caravans, yachts and boats. Because in these areas, there is usually no line or it is not economically feasible to connect a line. Therefore, in these systems, the electricity in photovoltaic panels is generated as direct current independent of the power grid and collected as alternating current in batteries through regulation with charge controllers. This collected energy is given to the system to be used when needed.
When installing off-grid systems, since they will not be connected to the grid and all energy needs will be met by this system; it is necessary to pay attention to when and how to use electricity, determine the electrical appliances to be used in homes, to the location of the region, how much sun it receives and how dark it is. This system essentially consists of 4 parts;
Solar panels, which are the most basic part of solar systems, convert the sunlight (photon) falling on them into equivalent electrical energy through solar cells of semiconducting silicon material. Solar panels are calculated based on daily energy consumption and the size of the area where the application can take place. According to the result of the calculation, suitable Arçelik monocrystalline panels with high strength and efficiency are selected.
Inverters, in the simplest definition, are electronic devices that convert DC (linear current) electrical energy into AC (alternating current) electrical energy thanks to the circuits inside. Modified sine and full sine inverters are commonly used in solar power systems.
Inverters come in two types, MPPT and PWM in full sine models. The new generation of inverters used in solar systems are smart inverters that include the charge controller. This type of inverters can show the user the solar panel production data, battery voltage values and electricity consumption.
Solar charge controller
Solar charge controllers regulate the electricity coming from the panel and are used for controlled battery charging. It also protects the panels from counter current and the batteries from overcharging. When determining the capacity of the charge controller, the total voltage and current value of the solar panel group and the total voltage value of the battery group must be taken into account. Today, thanks to evolving technology, solar charge controllers can be adapted into off grid inverters.
Battery (gel battery or lithium battery).
These are devices for storing the sun’s energy. Batteries meet energy needs by delivering stored energy to the system during periods when there is no or insufficient sunlight. It is imperative that the batteries to be used in the system last a long time, can withstand high temperatures, have high cycle efficiency and leak as little gas as possible. The choice of battery must take into account the operating voltage of the inverter and the daily energy consumption.