+36 70 338 1484 ajanlat@znsolar.hu Customer Service: Mon–Fri 7:00 a.m.–6:00 p.m.
Warehouse: Dunaharaszti, Raktár u. 4. (Mon–Fri 8:00 a.m.–4:00 p.m.)
+36 70 338 1484 ajanlat@znsolar.hu Customer Service: Mon–Fri 7:00 a.m.–6:00 p.m.
Warehouse: Dunaharaszti, Raktár u. 4. (Mon–Fri 8:00 a.m.–4:00 p.m.)
Expert Answers to the Most Common Questions — From inverters to batteries, from power outages to service life.
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A grid-tied inverter converts only the energy generated by the solar panels and feeds it to the building's electrical loads or the utility grid. It is generally not suitable for direct connection to a battery.
In three-phase systems, inverters feeding into the conventional grid typically distribute power symmetrically among the phases. This means that if a building’s electricity consumption occurs primarily on only one phase, some of the generated energy may be fed into the grid, while part of the consumed energy must still be drawn from the grid. For this reason, on-site consumption of self-generated energy is not always optimal.
In contrast, hybrid inverters are not only capable of managing batteries, but many models also support asymmetric power output. ZN Solar sells and installs only asymmetric inverters. As a result, the system can better adapt to varying loads on individual phases, allowing the generated energy to be used more efficiently on-site and reducing the amount of electricity drawn from the grid.
In addition, the hybrid inverter allows energy to be stored in a battery for later use. This provides greater energy independence and, if properly configured, can provide a backup power supply even during a power outage.
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Energy storage is truly useful when you want not only to generate energy but also to use it when you actually need it.
It's especially worth it if:
An energy storage system is not always a required component, but with proper system design, it can significantly increase self-consumption and safety.
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The appropriate battery capacity depends primarily on energy consumption, usage patterns, and the system's purpose.
In general, battery capacities ranging from 5 to 15 kWh are the most common for most single-family homes. If the primary goal is to partially cover evening energy consumption, a smaller battery may be sufficient, while a larger capacity is recommended for greater self-sufficiency or to provide backup power.
We'd be happy to help you determine the right size.
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The size of the system required is determined primarily by annual electricity consumption.
To determine the correct size, you generally need your electricity bills from the past 12 months or your annual consumption data. In addition, you must take into account the characteristics of the roof, its orientation, shading, and future increases in consumption—such as those resulting from the installation of an electric car or a heat pump.
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Not all inverters and batteries are compatible with each other.
Manufacturers typically specify which batteries they have tested with and officially support for a given inverter. To ensure proper operation and maintain warranty coverage, it’s always a good idea to check for compatibility.
If you're unsure about which option to choose, our staff will help you select the right combination.
Most systems can be expanded to some extent at a later date; however, the possibilities depend on the type of inverter, the available free operating points and their load, as well as the design of the battery system.
If expansion is expected to be necessary in the future, it is advisable to take this into account during the planning phase so that the system can be developed cost-effectively over the long term.
One of ZN Solar's guiding principles is to avoid thinking in terms of dead-end systems and instead focus on flexible solutions that work in the long term.
When it comes to solar power systems, quality is not a minor detail but a fundamental requirement for long-term, reliable operation.
The lifespan and stability of a well-designed system are significantly influenced by the quality of the components used and the approach taken in its construction.
With modern, high-quality solar panels, you can expect decades of reliable operation, which manufacturers back up with long-term product and performance warranties.
The inverter also plays an equally important role, as it ensures the system’s continuous and safe operation—a lower-quality inverter can affect the reliability of the entire system, not to mention the energy storage devices.
The lifespan of a solar power system therefore does not depend on any single component, but rather on how well the panels, the inverter, and the accessories work together as a cohesive, well-designed system.
Installing a solar power system does not, in and of itself, always present a significant technical challenge; however, designing a system that is safe, reliable in the long term, and operates optimally requires a high level of technical expertise.
During installation, it is essential to be familiar with the relevant standards, electrical safety regulations, technical requirements, and the installation instructions of the various manufacturers. It is particularly important to configure the inverter properly and to correctly set up and integrate the energy storage systems.
At first glance, a poorly designed system may appear to function flawlessly; however, incorrect parameter settings, the selection of unsuitable components, or their improper installation can significantly reduce the service life of the equipment, impair system performance, and, in extreme cases, even pose a safety risk.
Professional installation is not just about ensuring that the system generates energy, but also about ensuring that it operates reliably, safely, and with the highest possible efficiency for many years to come.
Not all inverters are suitable for off-grid operation, even if the manufacturer has authorized it; therefore, it is best to approach this issue based on practical experience.
Inverters connected to the traditional grid automatically shut down in the event of a power outage for safety reasons. For off-grid or backup operation, an inverter with a backup or EPS function is required, and a battery-based energy storage system is generally necessary as well.
The exact capabilities vary by inverter type.
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It depends on how the system is designed.
Systems connected to the traditional grid automatically shut down in the event of a power outage, even if the solar panels are generating enough energy.
However, certain hybrid inverters and battery systems are capable of operating in backup mode, thereby ensuring power supply to specific loads or even the entire building in the event of a power outage. The available power and runtime depend on the system’s design and the battery’s capacity.
A properly designed hybrid or energy storage system may be capable of:
It is important to know that:
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Solar panel and energy storage technology is constantly evolving, but future-proofing depends not on a single component, but on the system as a whole.
A well-designed system:
The goal is not for it to remain “unchanged forever,” but rather for it to be able to adapt to the challenges of the next 10 to 15 years.
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