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Line 1: − <h2 style="color: #4a4a4a; font-size: 24px; font-weight: bold; margin-bottom: 10px;"> Solar overview </h2> − <ul style="list-style-type: none; margin: 0; padding: 0;"> − − Solar integration with electric vehicle (EV) charging stations is an innovative and sustainable approach that combines solar power generation with the charging infrastructure for electric vehicles. Couple examples why this integration is important: <br> − *Solar-integrated TeltoCharge can be connected to the local electrical grid, allowing it to draw power from the grid when solar energy production is insufficient or when there is a high demand for charging. This ensures uninterrupted charging availability for EV owners. <br> − *Solar Power Offset: When solar panels produce excess electricity that is not immediately consumed by TeltoCharge, it can be fed back into the electrical grid. This process, known as net metering or feed-in tariff, allows the solar system owner to earn credits or receive compensation for the surplus energy supplied. <br> − − + Line 33:
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<h2 style="color: #4a4a4a; font-size: 24px; font-weight: bold; margin-bottom: 10px;"> Physical installation </h2>
<h2 style="color: #4a4a4a; font-size: 24px; font-weight: bold; margin-bottom: 10px;"> Physical installation </h2>
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*To ensure proper solar integration functionality, it is essential to begin with the correct physical installation. This involves having a smart energy meter installed in the electric circuit that possesses the necessary communication functionality and is included in the [[Smart energy meters|energy meter whitelist]]. The meter plays a crucial role in detecting negative current flow, indicating when energy consumption is lower than solar generation, and feeding it back into the electrical grid. For effective communication, the charger must be interconnected with the meter.
*To ensure proper solar integration functionality, it is essential to begin with the correct physical installation. This involves having a smart energy meter installed in the electric circuit that possesses the necessary communication functionality and is included in our [[Smart energy meters|energy meter list]]. The meter plays a crucial role in detecting negative current flow, indicating when energy consumption is lower than solar generation, and feeding it back into the electrical grid. For effective communication, the charger must be interconnected with the meter.
*When the meter detects surplus energy, it relays this information to the charger. Based on the charger's internal configurations, it will determine whether to initiate the charging process or not. It is important to note that this process depends on the specific configurations set within the charger.
*When the meter detects surplus energy, it relays this information to the charger. Based on the charger's internal configurations, it will determine whether to initiate the charging process or not. It is important to note that this process depends on the specific configurations set within the charger.
#'''Measuring device''': The meter should be selected. For UK chargers, it is possible to choose CT clamps.
#'''Measuring device''': The meter should be selected. For UK chargers, it is possible to choose CT clamps.
#'''Energy meter address''': This information can be found in the meter settings accessed through the meter display. If the address cannot be located, it is recommended to consult the smart meter manual.
#'''Energy meter address''': This information can be found in the meter settings accessed through the meter display. If the address cannot be located, it is recommended to consult the smart meter manual.
#'''Current update interval''': By default, it is set to 3 seconds. However, there may be cases where the user needs to increase this value. For instance, if there are significant distances between the chargers and the smart meter or if there are numerous interconnected chargers.<br>
#'''Current update interval''': By default, it is set to 3 seconds. However, there may be cases where the user needs to increase this value. For instance, if there are significant distances between the charger and the smart meter.<br>
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''ECO+ surplus minimum value set to 1 A<br>
''ECO+ surplus minimum value set to 1 A<br>
0 A (from solar) = charging process is not initiated<br>
0 A (from solar) = charging process is not initiated<br>
1 A (from solar) + 5 A from grid = 6 A charging current<br>
1 A (from solar) + 5 A (from grid) = 6 A charging current<br>
5 A (from solar) + 1 A from grid = 6 A charging current<br>
5 A (from solar) + 1 A (from grid) = 6 A charging current<br>
10 A (from solar) + 0 A from grid = 10 A charging current''
10 A (from solar) + 0 A (from grid) = 10 A charging current
*'''ECO charging profile''' - In this profile, the charging process is initiated using maximum available solar energy in combination with grid energy. The user sets the ECO charging minimum value, which determines the minimum charging current. This charging current is first covered by the maximum solar energy available and then supplemented with grid energy.
*'''ECO charging profile''' - In this profile, the charging process is initiated using maximum available solar energy in combination with grid energy. The user sets the ECO charging minimum value, which determines the minimum charging current. This charging current is first covered by the maximum solar energy available and then supplemented with grid energy.
Example:<br>
Example:<br>
''ECO charging minimum value set to 10 A<br>
''ECO charging minimum value set to 10 A<br>
If 5 A (from solar) + 5 A from grid = 10 A charging current<br>
If 5 A (from solar) + 5 A (from grid) = 10 A charging current<br>
If 9 A (from solar) + 1 A from grid = 10 A charging current<br>
If 9 A (from solar) + 1 A (from grid) = 10 A charging current<br>
If 16 A (from solar) + 0 A from grid = 16 A charging current<br>
If 16 A (from solar) + 0 A (from grid) = 16 A charging current<br>
If 0 A (from solar) + 10 A from grid = 10 A charging current''
If 0 A (from solar) + 10 A (from grid) = 10 A charging current
<h2 style="color: #4a4a4a; font-size: 24px; font-weight: bold; margin-bottom: 10px;"> Additional information </h2>
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There is additional information that is important to know when using solar integration, specifically regarding timers that dictate the start and stop of the charging process. <br>
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If the Solar or ECO+ mode is being utilized and there is a sudden shortage of solar power to charge the electric vehicle, the charger will compensate by drawing charging power from the grid for the following 30 seconds and limiting the maximum current to 6 A until enough solar power is available. If no sufficient solar power is available after 30 seconds, the charger will transition to the "On hold" state and await the availability of additional surplus energy. Once there is sufficient surplus energy, the charger initiates a 2-minute timer during which it verifies the sustained presence of enough solar energy. After the 2-minute interval elapses, the charger proceeds to the charging process. <br>
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This mechanism ensures that the charging process is flexible and responsive to variations in solar energy availability. By incorporating timers and checks, the charger optimizes the utilization of solar power while maintaining a reliable and efficient charging experience for electric vehicle owners.
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[[Category: Advanced Topics]]
