It depends. Some solar installations, especially on balconies, may be occasionally shaded or receive only a few hours of sunlight per day. That is perfectly fine. However, what significantly limits your energy yield is permanent partial shading. If one or more panels constantly have a small shaded area, it can significantly impact the overall system's performance. Even if a small strip (a few centimeters wide) of the panels is continuously in the shade, the performance drops rapidly. It is strongly recommended to avoid this situation. If your panels are partially shaded, please optimize the installation promptly.

Yes! SolMate has a feed-in capacity of 800 watts. In Austria, for instance, it is allowed to feed up to 800 watts per meter through the power outlet.

A LightMate has a maximum feed-in capacity of 400 watts, so two LightMates per meter are also allowed. As the permitted feed-in limit can vary from country to country, please check in advance how high it is in your country.

While the extraction of raw materials and the manufacturing of batteries do require energy, the energy consumed during the production process represents only a fraction of what will be stored in the battery. The positive effect of using renewable energy and storing it in the battery far outweighs any environmental impact during production.

It depends on your residential complex, so you should inquire if in doubt. Many residential complexes allow for privacy screens (including ones with functionality like ours), while others do not. However, anything installed within your balcony railing is up to you.

There is no technical advantage to the Wieland plug. However, unlike the type F plug, you cannot touch the pins of the Wieland plug. This design is intended to provide more safety but is not technically necessary. The installed inverters have integrated safety measures that ensure voltage is only present when a power grid is detected. If no power grid is detected, the voltage at the plug is disconnected in under 200 milliseconds. In Austria, Switzerland, and Germany, the Wieland plug is unnecessary. For more information, please visit: https://www.dgs.de/service/solarrebell/faq/.

With the MySolMate app, you can always check how much solar power is currently being produced and stored. Furthermore, you can also set how much energy your SolMate should always have stored for emergencies and how much should be fed in at a minimum and maximum (provided there is enough energy available). We provide the MySolMate app to you for free, and it is available for Android and iOS devices.

You can set a minimum feed-in and a minimum battery charge in the settings of your SolMate. However, there are some fundamental rules for SolMate that take precedence over your settings. SolMate may feed in significantly more or less power than what is set due to these rules. These rules are in place for the benefit of the battery, ensuring its longevity. Some of these rules include:

• The battery must not be too full.
• The battery must not be too empty.
• There is a voltage window in which the SolMate battery must be located.

The device's software version (Android) must not be older than version 7.0.0.

Can you see your storage's Wi-Fi network in the network settings of your mobile phone/computer/tablet? If yes, please perform onboarding with the wizard via mysolmate.eet.energy. Also, check the signal strength of your home Wi-Fi; it may be too weak. To improve connectivity, you can use a Wi-Fi repeater, an external Wi-Fi antenna, or a USB-C to LAN adapter.

In most cases, one of the following scenarios has occurred:

1. Your home's Wi-Fi signal is currently weak, causing SolMate to temporarily lose its connection.
2. Our server may be temporarily down or inaccessible due to maintenance.
3. Your SolMate may have lost its internet connection during a software update, causing it to get stuck. It will attempt to complete the update at the next opportunity, which may take some time.

What can you do about it? In 95% of cases, waiting for a few hours to days will resolve the issue. If not, you can try restarting it. To do this, simply press and hold the round button on the side for approximately 6 seconds, unplug and then plug the solar panels back in, and then turn SolMate back on (pressing the round button again). SolMate should automatically reconnect to our server. If you can now see the SolMate Wi-Fi in your available Wi-Fi connections, please use a laptop, go to mysolmate.eet.energy in your browser, and complete the onboarding process again.

We assume that SolMate works perfectly. However, if damage does occur, we will take care of the repair or replace the device. It's best to email us at support@eet.energy.

Please also check the signal strength of your home Wi-Fi; it may be too weak. To improve connectivity, you can use a Wi-Fi repeater, an external Wi-Fi antenna, or a USB-C to LAN adapter. If it is still not visible, please check the router settings (MAC address filter, hidden SSID).

Please check if your storage is turned on.

To ensure that there is a sufficient signal, please stand close to the storage with your mobile phone/laptop/tablet (up to 2 meters away).

If you still cannot see your storage's Wi-Fi network in the network settings and have already completed the onboarding in the past, your storage may be trying to connect to your home Wi-Fi in the background with the stored password. If the password was entered incorrectly, please wait for about 5 minutes, and then your storage's Wi-Fi should be visible again in the network settings.

If it is still not visible after that, please contact us at support@eet.energy.

If your modules were installed by an "expert" and your SolMate still shows no signs of life, it's important to note that very often, solar panels in large installations are connected in series, so professionals are accustomed to connecting solar panels in series. However, SolMate requires its panels to be connected in parallel. If your modules have been connected in series and thus exceeded the maximum input voltage of 44 V, SolMate won't be able to function with them. Please refer to the information regarding how to connect your panels during the setup process.

If you cannot access your SolMate locally or through the app, the LEDs on the left side of your SolMate are not working, and even a restart in bright sunlight doesn't help, you should check the following:

Have you checked all the plug connections? Did you only purchase the SolMate storage unit and use your own panels, or was the system installed by a professional? Often, in large rooftop installations, solar panels are connected in series, which is common practice for installers. However, SolMate requires its panels to be connected in parallel. If your modules were connected in series and exceeded the maximum input voltage of 44 V, your SolMate cannot work with them. SolMate requires solar panels connected in parallel with a voltage between 26 and 44 V.

In this case, a restart can be helpful. Simply press and hold the round button on the side for about 6 seconds, unplug and then plug back in the solar panels, and then turn SolMate back on (pressing the round button again). SolMate should automatically reconnect to our server. If you can now see the SolMate Wi-Fi in your available Wi-Fi connections, please use a laptop, go to mysolmate.eet.energy in your browser, and complete the onboarding process again.

If restarting doesn't help either, unplug your home router briefly and see if a hotspot reappears. Approach SolMate closely and check if there is still no hotspot visible.

If none of these steps resolve the issue, please refer to the questions about the solar panels: "My SolMate doesn't seem to be getting power from the solar panels." "How can I rule out that a panel is defective?"

Did you only purchase the SolMate storage unit, use your own panels, and unfortunately, SolMate is not showing any signs of life? Very often, solar panels in large installations are connected in series, so it's common for installers to connect solar panels in series. However, SolMate requires its panels to be connected in parallel. If you have connected your modules in series and exceeded the maximum input voltage of 44 V, SolMate won't be able to work with them. Please refer to the information on how to connect your panels during the setup process.

It depends on whether you have access to your SolMate or not. If you can connect locally to your SolMate or access it through the app, you can attach each panel individually to the SolMate and check if it is producing power. Of course, only when the sun is shining.

If SolMate is not accessible, you can also check the panels using a multimeter (at your own risk!).

PLEASE NOTE: Use a multimeter only if you know how to operate it and it can handle at least 10 A. Typically, each individual SolMate G panel should provide between 36 and 44 V in sunlight. You can also measure them all together, and the measurement should provide the same voltage. If your multimeter can handle 10 A, you can also measure the short-circuit current of each panel. This should be between 2.5 A and 10 A per panel in sunlight. Don't measure both together, as most multimeters cannot handle that. Finally, you can also measure the DC extension cable between panels and the storage unit to check it.

There is a round button located on the upper left side of SolMate, above the LED display. Pressing this button for approximately 6 seconds will shut down SolMate. Pressing the same button again will restart the system.

In case the restart options do not work, you can perform a "hard reset" as a last resort. (Caution: You might need to "onboard" your SolMate again afterward.)*

1. Disconnect connections
   Disconnect all connections to SolMate, including the PV cables and the cable to the socket.
2. Press and hold the button
   Press and hold the power button for 30 seconds.
3. Wait
   Wait 2 minutes before proceeding.
4. Reconnect connections
   Reconnect all connections to SolMate, including the PV cables and the socket cable.
5. Turn on SolMate
   Turn the SolMate system back on.

Done! Your SolMate should now be ready for use again.

*The instructions for the hard reset apply to SolMate v2; if you own SolMate v1, it is enough to simply turn the toggle switch off and on again.

If you believe your SolMate is malfunctioning, don't worry at first. If that's the case, we will help you as quickly as possible. Together, we will find the right solution. In 95% of cases, a few days of waiting can work wonders. If your system is currently not reachable, the most likely reasons are:

1. Your home Wi-Fi signal is weak, causing SolMate to temporarily lose its connection.
2. Our server is currently down or not reachable due to maintenance.
3. During a software update, your SolMate lost its internet connection and got stuck. SolMate will attempt to complete the update at the next opportunity, which may take some time.

If you've waited for several sunny days and still have issues with your device, first check if there is a solution in the FAQs. Otherwise, feel free to contact us anytime at support@eet.energy.

Your SolMate measures consumption on one phase in your household and feeds in power as needed. However, it follows some rules that take precedence over consumption measurement. As a result, SolMate can feed in significantly more or less power than is currently being consumed/measured. Some of these rules include:

• The battery must not be too full.
• The battery must not be too empty.
• There is a voltage window in which the SolMate battery must be located.

Because your SolMate with a constant minimum feed-in of 800 W would be almost constantly empty, which is not really practical. 800 W might make sense when the storage is full.

There is no optimal setting for it. The higher the minimum battery charge level is set, the less storage capacity you can use in everyday life, but the "fuller" your battery will be in the event of a power outage. Of course, it is advantageous for the battery and its lifespan if it is not constantly fully charged. To maximize the lifespan of your battery, we recommend a minimum battery level of 10% to 30%.

SolMate lives longest and healthiest when it can charge and discharge slowly and evenly. All settings you can make in the app are not fixed rules because they are subordinate in the hierarchy of battery health. Ideally, you don't need to make any settings for maximum or minimum feed-in because SolMate takes care of its health as best as possible on its own. However, if you have a permanent, larger consumer (e.g., an aquarium pump) in your household, you can set its power as the minimum feed-in. SolMate cannot detect permanent consumers (those that are never turned on or off).

A maximum feed-in is only useful if you generally have very low or almost no base consumption, so that charging the battery for the evening is prioritized.

When you disconnect SolMate or LightMate from your household outlet, there is no longer any voltage present. The built-in inverters have integrated and certified safety measures that ensure voltage is only present when a power grid is detected. If no power grid is detected, the voltage at the plug is disconnected in under 200 milliseconds.

No! For safety reasons, SolMate will automatically disconnect from the grid in such situations. However, SolMate has a built-in outlet that can be used for autonomous emergency power supply. So, if the power goes out in your house, you can continue to power essential appliances using it.

The storage unit has a capacity of 1.5 kWh, and the energy remains in storage until you use it, with minimal storage losses. So, if you actually don't consume any electricity for some time, the battery would stay fully charged for many days to weeks if the storage is turned off. In essence, the storage is designed as an intermediate buffer – during the day (in sunny conditions), it gets filled with excess energy, and you can then use these surplus reserves during the night.

In off-grid operation mode, power can be drawn through the outlet supplied by the island inverter in SolMate. A maximum of one device with protection class I (device with metal housing) can be connected to the device outlet, but devices with protection class II can have multiple simultaneous connections. With additional safety measures (grounding, RCD), it is even possible to set up an autonomous power supply network for multiple consumers.

To set a minimum feed-in value, follow these steps: Visit mysolmate.eet.energy and log in with your serial number and user password. Click on the "Settings" tab, where you'll find a slider for "Feed-in Power Range" that allows you to set the minimum and maximum feed-in power in watts (W). In the app, you can access the settings by tapping on the symbol with three stacked lines at the bottom right. You can adjust these settings in offline mode as well, meaning when you are directly connected to your SolMate's Wi-Fi, and your SolMate is not online.

If your SolMate is online continuously or at least regularly, then yes. As long as the device is online for more than an hour, it usually automatically fetches the latest version.

If you operate your device in offline mode and only bring it online occasionally (just for updates), then not necessarily.

The current software version is 0.4.56-d.

Yes! In island operation mode, the energy stored in the battery can be used via the built-in outlet.

You can do this temporarily, but please avoid doing it for the long term. Energy meters in general (including the ones in our shop) can be used with LightMate systems to measure energy flow. However, it is not advisable to use them in combination with SolMate, as they can affect the measurement signal of your SolMate. You can monitor the fed-in power through the MySolMate app or mysolmate.eet.energy.

Electricity is only fed into one phase. It is not technically possible to feed all three phases. However, you can still consume electricity on all phases. The electricity meter balances the consumed electricity and can offset the consumption across all phases.

So, it's not a problem if you feed into phase 1 but your largest consumers are on phase 2.

There are no additional costs during operation. The device is maintenance-free.

No, that's safe and normal. The power electronics are located in the upper third, and it can safely reach temperatures up to 60°C. If this temperature is exceeded, turn off your device and contact us.

In grid operation mode, the intelligent measuring technology detects the electricity consumption in the household and feeds in the generated electricity as needed. The integrated outlet of SolMate can also be used as direct access to the normal household electricity network during grid operation.

No, it's not necessary. You can access your SolMate from any laptop/PC/Mac with an active internet connection, provided that your SolMate is turned on and online. Simply open a web browser (such as Google Chrome, Mozilla Firefox, Microsoft Edge, Safari, etc.), go to mysolmate.eet.energy, launch the web app, and then enter your serial number and user password.

Alternatively, you can also use a smartphone and download the MySolMate app from the App Store or Google Play Store after successfully connecting your SolMate to the internet.