Photovoltaic cables and connectors

Charge controllers and converters - key elements of photovoltaic installations

At Onninen we understand perfectly well how important a role charge controllers and converters play in photovoltaic systems.   These devices are the heart of every solar installation. They regulate the flow of energy from the panels to the batteries. They also ensure the optimal operation of the entire system. Our offer includes a wide selection of these key components.

Charge regulators control the battery charging process. They protect them from overcharging and deep discharge. This extends the battery life. Converters, in turn, convert direct current to alternating current. They enable powering standard electrical devices.

Types of charge controllers and converters available from Onninen

In our offer you will find various types of these devices. PWM and MPPT charging controllers are available. We also offer off-grid and on-grid converters. Each type has its advantages and applications.   PWM works well in small home installations. MPPT is ideal for larger commercial systems.

Off-grid converters enable operation independently of the power grid. On-grid cooperate with the grid and allow for the return of surplus energy. Our range includes devices from renowned manufacturers. We also offer our own brands: Onnline and FXA.

• PWM controllers - an economical solution for small installations
• MPPT Controllers - High Efficiency in Large Systems
• Off-grid converters - energy independence
• On-grid converters - cooperation with the power grid

How to select the right charge regulators and converters?

Choosing the right device depends on many factors. The power of the photovoltaic installation must be taken into account. The capacity of the batteries is also important. The planned load of the system must be taken into account.   At Onninen we provide professional advice when selecting components.   Our specialists will help you match regulators and converters to your specific needs.

When choosing a charge controller, the key parameters are the current. They must correspond to the characteristics of the panels. Output power is important for converters. It should cover the demand of the powered devices. It is also worth paying attention to additional functions. These can be, for example, monitoring the system's operation or protection.

Our experience shows that many customers have doubts. They concern in particular the selection of converter power. We often recommend choosing a device with a certain power reserve. This allows for possible expansion of the system in the future. At the same time, it ensures stable operation at peak load.

Practical applications of charge controllers and converters

In our daily work we encounter a variety of photovoltaic projects.   We recently completed an installation for a farm. We used our Onnline brand MPPT regulators there. This allowed for the efficient use of energy from a large panel surface. The on-grid converter allowed for the sale of surpluses to the network.

Another interesting case was an off-grid installation in a summer house. Here, PWM regulators and an island converter proved their worth. They ensured energy independence in a place without access to the grid. The system powers lighting, a refrigerator and other basic devices.

In the case of industrial installations, we often use advanced systems. They connect several converters working in parallel. This solution ensures high reliability and scalability. This is particularly important in facilities with variable energy demand.

Many customers ask us about the possibility of upgrading existing installations. We often recommend replacing older regulators with more modern MPPT models. This allows for increased system efficiency without replacing panels. In the case of converters, the upgrade often involves increasing power or adding smart grid functions.

• Home installations - saving on electricity bills
• Industrial Systems - Energy Independence and Cost Optimization
• Off-grid applications - energy in places far from the grid
• Modernizations - improving the efficiency of existing installations

At Onninen we offer comprehensive support for photovoltaic projects. Our offer includes not only controllers and converters. We also supply panels, cabling and mounting accessories. We provide expert advice at every stage of implementation.   We invite you to contact our specialists. They will help you choose the optimal solutions for your needs.