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mathieucarbou committed Jul 2, 2024
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Expand Up @@ -39,20 +39,20 @@ A router can also schedule some forced heating of the water tank to ensure the w

## Shelly Solar Router

This solar diverter based on Shelly and a Shelly script can control remotely dimmers and could even be enhanced with relays.
This solar diverter based on Shelly devices and a Shelly script can control remotely dimmers and could even be enhanced with relays.
Shelly's being remotely controllable, such system offers a very good integration with Shelly App and Home Automation Systems like Home Assistant.

It is possible to put some rules based on temperature, time, days, etc and control everything from the Shelly App or Home Assistant.

The Shelly script, is activated, automatically adjusts the dimmers to the grid import or export (solar production excess).
The Shelly script, when activated, automatically adjusts the dimmers to the grid import or export (solar production excess).

## Download

- **[Shelly Solar Diverter Script](/downloads/solar_diverter_v1.js)**

## Hardware

All the components can be bought at [https://www.shelly.com/](https://www.shelly.com/), except the voltage regulator, where you can find some links [on this website](https://yasolr.carbou.me/build#compatible-hardware)
All the components can be bought at [https://www.shelly.com/](https://www.shelly.com/), except the voltage regulator, where you can find some links [on my website](/build#compatible-hardware)

| [Shelly Pro EM - 50](https://www.shelly.com/fr/products/shop/proem-1x50a) | [Shelly Dimmer 0/1-10V PM Gen3](https://www.shelly.com/fr/products/shop/1xsd10pmgen3) | [Shelly Plus Add-On](https://www.shelly.com/fr/products/shop/shelly-plus-add-on) | [Temperature Sensor DS18B20](https://www.shelly.com/fr/products/shop/temperature-sensor-ds18B20) | Voltage Regulator<br>- [Loncont LSA-H3P50YB](https://fr.aliexpress.com/item/32606780994.html)<br>- [LCTC DTY-220V40P1](https://fr.aliexpress.com/item/1005005008018888.html) |
| :-----------------------------------------------------------------------: | :-----------------------------------------------------------------------------------: | :------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------: | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
Expand All @@ -65,7 +65,7 @@ Please select the amperage according to your needs.
- A 16A or 20A breaker for your water tank (resistance) electric circuit
- A 25A relay or contactor for the bypass relay (to force a heating) for the water tank electric circuit
- A protection box for the Shelly
- The LSA voltage regulator is far better than the LCTC one: the variation of voltage from 0 to 10V better matches the power curve of the output
- **The LSA voltage regulator is far better than the LCTC one**: the variation of voltage from 0 to 10V better matches the power curve of the output

## Wiring

Expand All @@ -88,6 +88,7 @@ First the easy part: the temperature sensor and the Shelly Add-On, which has to
- The A clamp should be put around the main phase entering the house
- The relay / contactor is optional and is used to schedule some forced heating of the water tank to ensure the water reaches a safe temperature, and consequently bypass the dimmed voltage.
- The neutral wire going to the voltage regulator can be a small one; it is only used for the voltage and Zero-Crossing detection.
- Communication is done through WiFI: **make sure you have a good WiFi to reduce the connection time and improve the router speed.**

[![](/assets/img/schemas/Solar_Router_Diverter.jpg)](/assets/img/schemas/Solar_Router_Diverter.jpg)

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