Customer service & support

The specialists at SolarToday want to support you as much as possible, so you have more time and a better focus on the installation. 

Frequently Asked Questions

Which Jinko solar panels are best suited for residential projects in Europe?
The Jinko Tiger Neo N-type panels are highly suitable for residential applications due to their high efficiency (up to over 24%) and excellent performance at low light levels. Thanks to the N-type technology, these panels suffer less from degradation, allowing customers to maintain high output for many years. Additionally, they meet the strict European certifications for safety and quality. This makes them popular among installers looking for reliable and powerful modules.
What are the main advantages of Jinko's N-type TOPCon (Tiger Neo) solar panels over P-type panels?
Jinko’s N-type TOPCon panels, like the Tiger Neo series, offer higher efficiency up to 24%, lower temperature coefficient, and virtually no light-induced degradation (LID). This means these panels degrade less over the years and perform better during hot summers or partial shading. For installers, this translates to satisfied customers and a reliable product with a longer lifespan, which is an important selling point in the competitive European market. Additionally, the panels last longer due to their improved cell structure and lower annual degradation.
What warranty does Jinko offer on N-type panels for installations in Europe?
Jinko’s Tiger Neo panels come with a 15-year product warranty and a 30-year performance warranty, which is one of the best standards on the market. After 30 years, Jinko guarantees at least 87.4% of the original capacity, offering end-users the confidence to invest long-term. For installers, this extended warranty period provides lower risk and is a strong sales argument to clients looking for durable solutions. This makes the panels extra appealing for both residential and commercial projects in Europe.
Do Jinko's bifacial solar panels deliver higher output for installations in Europe, and what conditions are needed to maximize their performance?
Many customers choose bifacial panels for noticeable energy gains. The bifacial panels from Jinko, like the Tiger Neo bifacial series, can provide 5–20% more yield, depending on the installation. To maximize this performance, it is essential that they are installed above light-reflective surfaces (such as white gravel or reflective foil) and with sufficient distance from the ground. They perform best on flat commercial roofs, greenhouses, and solar parks where the reflection (albedo) is high.
Which Jinko batteries does SolarToday supply?
At SolarToday, we offer Jinko’s complete battery portfolio. For commercial and industrial (C&I) applications, we provide the SunGiga battery systems from 215 kWh, ideal for companies aiming to optimize their energy use and reduce costs. For large-scale utility projects, we also offer the SunTERRA solutions from Jinko, which we deliver directly or in collaboration with local partners to ensure quick and seamless integration and commissioning.
What technology does Aiko Solar use in their solar panels?
Aiko Solar uses advanced N-type ABC (All Back Contact) technology, which eliminates busbars on the front side and maximizes the use of the active cell surface. As a result, their panels achieve efficiencies above 24%, making them one of the most efficient choices for both residential and commercial applications.
Are Aiko panels bifacial?
Yes, many Aiko panels are bifacial and can generate additional energy from sunlight that is reflected on the rear side. This leads to higher total output, especially in installations with light-colored roofs or reflective ground surfaces.
What is the warranty on Aiko Solar panels?
Aiko offers a performance warranty of 25 to 30 years, depending on the model, with a guaranteed yield of around 88% after 30 years. The product warranty is typically 15 years, which underlines their confidence in their N-type technology.
Do Aiko Solar panels perform well in shaded conditions?
Yes, thanks to ABC technology and improved current conduction, Aiko panels perform better under partial shading than traditional PERC panels. This makes them very suitable for rooftops where shading cannot be avoided.
What cell technology does Canadian Solar use?
Canadian Solar provides panels with both PERC and the latest N-type TOPCon technology. Their N-type panels offer higher efficiency, less degradation, and better performance in low-light conditions, making them ideal for European weather conditions.
What warranty does Canadian Solar offer on their panels?
Canadian Solar offers up to 25 years of product warranty and 30 years of performance warranty on their N-type panels, ensuring long-term reliability and stable energy output.
How do Canadian Solar panels perform in high temperatures?
Thanks to their low temperature coefficient, Canadian Solar panels—especially the N-type versions—maintain high efficiency during hot days. This makes them very suitable for southern markets like Spain, Italy, and Greece.
Are Canadian Solar panels bifacial?
Yes, Canadian Solar offers a wide range of bifacial modules, particularly in the HiKu and BiHiKu series. These panels can deliver up to 20% extra yield depending on ground reflectivity.
How do I install and configure a Huawei residential inverter using the FusionSolar app?
Using the FusionSolar app, you can easily configure and commission Huawei inverters. You connect via Bluetooth or Wi-Fi, select the correct European grid code, and perform firmware updates. You can then link the inverter to the monitoring portal for real-time monitoring. Make sure all settings comply with local grid requirements for a smooth approval process.
Do Huawei batteries support dynamic energy tariffs and energy trading?
Yes, Huawei’s Luna2000 residential batteries are suitable for dynamic energy management and can work with energy contracts with variable tariffs. The system can charge and discharge based on real-time market prices when connected to an energy management platform. This helps maximize self-consumption and reduce energy costs. In some countries, even energy trading or net metering is supported.
How do I use the Huawei FusionSolar monitoring portal for multiple projects?
With the FusionSolar platform, you can monitor residential and commercial installations via one dashboard. You get insights into yield, consumption, battery status, and potential faults. You can also generate reports and set up automatic alerts for anomalies. This makes project management more efficient and scalable for installers and O&M teams.
What are the installation requirements for Huawei commercial inverters (SUN2000 series)?
For commercial projects, you must use correct DC and AC cabling and follow European grid codes and installation standards. Huawei SUN2000 inverters must be properly grounded and have enough space for ventilation. Through the FusionSolar app, you set the grid code and other parameters. Always consult the latest manual and firmware for up-to-date installation instructions.
Can Huawei inverters be combined with batteries from other brands?
Huawei inverters are primarily designed to work optimally with Huawei’s own Luna2000 batteries. Integration with batteries from other brands is technically limited and usually not officially supported. Using non-certified batteries may negatively affect system performance and compatibility. Therefore, Huawei strongly recommends using its own battery solutions.
How do I integrate back-up functions into a Huawei residential system?
Huawei offers backup functionality via the Backup Box, which keeps selected circuits powered during outages. You connect the Backup Box between the battery and the household grid. Configuration and activation are done through the FusionSolar app, where you can configure different backup groups. Note that backup power depends on the type of inverter and battery capacity.
Welke diagnose- en ondersteuningstools biedt Huawei voor installateurs?
Installers have access to the FusionSolar app and the online monitoring portal for fault detection and real-time diagnostics. You can perform system updates, update firmware, and change settings remotely. Additionally, Huawei provides technical support through SKE Solar, ensuring quick issue resolution. These tools help reduce maintenance costs and maximize system uptime.
How do I activate and configure SolarEdge ONE for my customers?
SolarEdge ONE is activated via SetApp during the commissioning of the inverter. After that, you can access the monitoring platform to enable features such as smart energy management and dynamic tariffs. Make sure your customer is registered on the platform to gain full access. In the settings, you can also configure preferences for battery usage and energy savings tailored to their energy profile.
Can SolarEdge systems participate in energy trading or dynamic energy management?
Yes, with SolarEdge ONE and the accompanying Home batteries, systems can respond to dynamic electricity rates and energy trading. The system can automatically store power when prices are low and feed it back when prices are high. This requires integration with an energy supplier or platform that supports flexible energy use. This allows your customers to benefit from lower energy bills and new revenue models.
How do I use the SolarEdge Designer tool for planning residential projects?
With SolarEdge Designer, you can easily create a design by entering the project address and roof details. The tool automatically generates an optimal panel layout, taking into account shading, roof orientation, and system size. You can simulate expected energy production and system performance over the years. This helps ensure accurate designs and professional presentations for your customers.
What steps should I follow to install and connect a SolarEdge Home battery?
Place the battery close to the Energy Hub inverter in a well-ventilated and dry area. Connect the battery via the DC terminals and communication cables. Make sure it is on the latest firmware version and configure it via SetApp to commission the system. Always check the local grid code requirements and follow the latest SolarEdge installation manual for a safe and compliant setup.
Are SolarEdge inverters compatible with batteries from other brands?
In principle, SolarEdge inverters are specially designed to work optimally with SolarEdge Home batteries. Using batteries from other brands is sometimes technically possible but often limited due to compatibility restrictions and lack of regional support. It is highly recommended to use only SolarEdge-certified batteries to ensure full functionality, warranty, and support. Check the official compatibility list from SolarEdge before considering alternatives.
What should I pay attention to when installing the SolarEdge Energy Hub inverter?
Make sure the system is correctly dimensioned and use proper DC and AC cabling according to SolarEdge guidelines. If you are installing backup functionality, ensure that the circuits are properly configured and the batteries are linked. Check that the inverter has the latest firmware version and complies with the local grid codes. It’s also important to maintain sufficient ventilation around the unit to ensure optimal performance.
What support tools does SolarEdge offer for fault diagnosis and remote troubleshooting?
SolarEdge offers installers various tools such as the monitoring portal to track system performance and detect faults. With SetApp, you can perform on-site configurations and firmware updates. Additionally, via the SolarEdge support portal, you can perform advanced diagnostics and submit service requests remotely. This helps resolve issues efficiently and minimizes unnecessary site visits.
How do I configure an SAJ inverter via the eSolar-setup app?
With the eSolar-setup app, you can easily commission the SAJ inverter via Bluetooth or Wi-Fi. After connection, you can select grid codes, set parameters, and perform firmware updates. Always ensure that you use the latest version of the app for compatibility with European grid standards. After configuration, you can link the system to the monitoring portal for online access.
Is the SAJ Home battery compatible with dynamic energy tariffs?
Yes, the SAJ Home battery supports energy management functions that allow you to benefit from dynamic tariffs. With intelligent charging and discharging strategies, the system stores energy when prices are low and discharges it when prices are high. This helps customers reduce their energy costs and increase self-consumption. For optimal performance, we recommend integrating it with an energy management system.
How do I use the SAJ online monitoring platform for my customers?
Through the SAJ Cloud monitoring platform, you can monitor both residential and commercial systems. You can view yield data, error diagnostics, and generate customer-specific reports. Installers have access to advanced statistics and real-time inverter status. Customers can also view their production and consumption via the mobile app or web portal.
What steps must I follow to install the SAJ CHS2 commercial inverter?
When installing the CHS2 series, ensure correct DC and AC wiring, and pay attention to grounding according to European standards. Check that the grid code settings match the country where the system is installed. Use the SAJ app to configure and verify firmware. Ensure adequate ventilation and always follow the SAJ installation manual for a safe and compliant setup.
Can SAJ inverters be combined with batteries from other brands?
SAJ inverters are primarily designed for optimal performance with SAJ batteries. Compatibility with other brands must be verified against approved compatibility lists. In some cases, other batteries may work, but this can affect warranty and support. Use of SAJ-certified batteries is strongly recommended for full assurance.
How do I connect a residential SAJ system to the grid and ensure grid code compliance?
During installation, select the correct grid code via the eSolar-setup app, depending on the country. Check that the inverter firmware is up-to-date to comply with the latest grid requirements. Proper grid code configuration is essential for inspection approval and grid compliance. SAJ regularly updates firmware to maintain compatibility with evolving grid standards.
What support tools does SAJ offer for fault diagnosis and maintenance?
SAJ provides real-time fault diagnostics and installer logs via the Cloud monitoring platform and mobile apps. You can read local logs and analyze fault codes. Through the European support team, you can request technical support and perform firmware updates. These tools help localize issues and carry out maintenance efficiently without unnecessary site visits.
What is the APsystems microinverter?
The APsystems microinverter converts the generated energy in a solar panel from direct current (DC) to alternating current (AC), whereby the energy yield of each inverter in a string of solar panels is maximized individually. Unlike conventional central “string” inverters (where multiple solar panels are connected to a single central inverter), the APsystems microinverter manages each solar panel individually, optimizing the total energy output of the entire system.
Where can APsystems microinverters be installed? And can more PV modules be added later?
The flexible and independent design of APsystems microinverters allows for easy and safe installation on virtually any available surface. Every owner can always expand later, without modifications (such as other central inverters, wiring, new design), to the solar panel system as needed. The modular system can be expanded at any time to meet the desired capacity by adding multiple microinverters to produce more electricity.
Are APsystems microinverters compatible with all solar panels, including the latest high-power modules?
Yes, APsystems microinverters are designed to work with nearly all standard solar panels on the market, including high-power modules of 600W and higher. This makes them ideal for use with the latest N-type TOPCon or bifacial panels that are increasingly popular in Europe. Note: ensure that the panel’s voltage and current fall within the input range of the microinverter.
How can I monitor an APsystems system? Do I need extra hardware?
Monitoring is done via the ECU (Energy Communication Unit), which connects the microinverters to the APsystems EMA portal or mobile app. An ECU is required for real-time monitoring and reporting. This gives both installers and end users insight into the performance of each individual panel, which is very useful for service and maintenance after installation.
Can I use APsystems microinverters in 3-phase systems in Europe?
Yes, APsystems offers both 1-phase and 3-phase microinverter solutions for the European market. Their QT2 series is specially developed for commercial and residential 3-phase installations, commonly used in countries like the Netherlands, Belgium, and Germany. This makes them flexible for use in everything from small households to larger commercial applications.
What warranty applies to APsystems microinverters in Europe?
APsystems provides a standard 10-year warranty on their microinverters in Europe, with the option to extend this to 20 or even 25 years. This provides installers and end users with peace of mind and makes it easier to guarantee long-term performance when selling their solar energy systems.
Do APsystems microinverters work with energy storage systems?
Yes, although APsystems microinverters are primarily designed for grid-tied systems, they can be combined with energy storage systems via AC-coupled batteries. This provides homeowners the flexibility to add energy storage later without having to modify the existing system, which is a major advantage as battery demand grows in Europe.
For which solar panels is the ValkPro+ system suitable?

ValkPro+ (south & east-west) is standard suitable for solar panels with the following dimensions:

L10/L15 South and East-West

  • Pitch south: 1300, 1400, 1500, 1600 or 1700 mm
  • Pitch east-west: 2150, 2300, 2400 or 2500 mm

P10 South and East-West

  • Pitch south: 2100, 2200, 2300 or 2400 mm
  • Pitch east-west: 3500, 3600, 3800, 4200, 4300, 4400 or 4500 mm
What is the maximum roof height for using the ValkPro+ system?

Via www.valkpvplanner.nl, you can calculate your own projects up to a height of no less than 25 meters.

Is your roof even higher? Then you can contact our project department (projecten@valksolarsystems.nl) for a suitable solution.

What does the ValkPro+ system offer for neatly routing cables?

We have included various cable clips in our service articles:

Stainless steel cable clip: The stainless steel cable clip can be used to neatly route cables. This service item can be attached to the solar panel. (article number 732001)

Plastic cable clip: The plastic cable clip allows you to neatly route cables within the ValkPro+ system. The plastic cable clip can be placed on the rear feet of the ValkPro+ system. (article number 732011)

How much ballast should I place under my PV system and where?
The required amount of ballast depends on several factors such as roof height, wind load, nearby buildings, etc. When you calculate the PV mounting system using the ValkPVplanner, it automatically accounts for this and provides a correct ballast plan that meets standards. With the use of wind deflectors (side and rear plates) and coupled roof carriers, the amount of required ballast can be minimized.
What are the pitch dimensions of the ValkPro+ system?

L10 South and East-West

  • Pitch south: 1300, 1400, 1500, 1600 or 1700 mm
  • Pitch east-west: 2300, 2400 or 2500 mm

P10 South and East-West

  • Pitch south: 2100, 2200, 2300 or 2400 mm
  • Pitch east-west: 3500, 3600, 3800, 4200, 4300, 4400 or 4500 mm
Are the PV mounting systems stormproof?
The PV mounting systems from Van der Valk Solar Systems are tested and meet European standards. Our ValkPro+ system is also wind tunnel tested. This is included in our ValkPVplanner.
What is the warranty period and can it be extended?
The standard warranty for all our systems is 10 years. Under certain conditions, the warranty can be extended to 15, 20, or even 25 years. For more information about the conditions, contact your wholesaler.
What products does Conduct Company offer for the safety of solar power installations?
Conduct Company develops and manufactures high-quality safety solutions for PV installations. Our assortment includes, among others, the PV Shelter (for protecting inverters and optimizers), cable management systems for safe wiring, the PV Box for neat and fire-safe connections, and various products aimed at fire prevention and system safety.
How do the PV Shelter and PV Box from Conduct Company contribute to fire safety?
The PV Shelter protects electrical components from overheating and weather conditions, reducing the risk of malfunctions and fire. The PV Box ensures a safe, organized connection of cables and connectors, preventing electric arcs and overheating. Both products significantly contribute to fire safety in PV installations.
Are Conduct's cable management systems suitable for both residential and commercial PV installations?
Yes, Conduct Company's cable management solutions are suitable for both residential and commercial projects. They ensure safe, durable, and tidy wiring regardless of the size of the installation.
What products does Easee offer for electric charging?
Easee provides smart and modular EV chargers for both home and business use. Their assortment includes the Easee Home and Easee Charge, both supporting dynamic charging, load balancing, and future-ready expansion options.
What makes Easee chargers technically better than other brands?
Easee chargers combine sleek Scandinavian design with advanced technology. They support direct payments via RFID or apps, have smart energy features like peak shaving and load sharing, and are compact yet powerful. Additionally, they are prepared for smart grids and are flexibly scalable.
Do Easee chargers support payments for public charging?
Yes, Easee chargers support public charging payments. They are compatible with RFID cards and mobile apps, allowing secure and easy access for users in public and semi-public environments.
Are Easee chargers suitable for both residential and commercial use?
Absolutely. Easee Home is ideal for residential settings, while Easee Charge is specifically developed for apartment complexes, businesses, and public charging stations. Thanks to smart load balancing, both are scalable and efficient.
How do peak shaving and load sharing from Easee help reduce energy costs?
Peak shaving prevents high power peaks and reduces grid costs. Load sharing ensures that multiple vehicles can charge simultaneously without exceeding the maximum capacity of the electrical connection — ideal for locations with multiple chargers.

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