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Multi Element Geyser for Solar Inverter

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Here is a system if been working on for the last year or so.

Basically its a network of esp32 micro-controllers that communicative with each other via there own mesh network to calculate if a geyser needs to be turned on if its to cold for the current time or if it can be heated if there is access solar power not being used.
 

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The controller for the inverter plugs directly into the inverter like a normal logger. The controllers have displays to display valuable information like current geyser temperatures, the ip adders of the controller so find it on your local network.
 

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The System will work if there is no internet but wont be able update the online charts. If there is internet it will update the chart so you can view your system info from anywhere where you have internet.

WhatsApp Image 2023-10-09 at 12.46.17_2418a5e3.jpg

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The geyser controller unit

-Fit into an weatherproof 4x4 box.
-Has an current sensor to monitor if the thermal cutout of the geyser is active or not
-Has an digital temperature sensor input to monitor the temperature of the water
-Will repeat info from other geyser controllers in the system that is not in range of the main inverter controller
-Can control 3 geyser element to control the amount of power a geyser use

How the multi-element works?

The multi element geyser elements welded onto the geyser flange the first element consumes 400watts the second 800 watts and the third element consumes 1600 watts. Therefore you can increase the geyser power consumption in step of 400 watts, for instance if you want the geyser to use 1200 watt the first and second element will turn on. If any of the element are turned on and the current sensor pick up that no power are consumed the geyser controller will notify the main controller that the geyser thermal cutout unit have been activated and that geyser next in line can be heated.

WhatsApp Image 2023-10-09 at 16.43.17_b2d23c6e.jpg

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The Inverter Reader unit(or repeater)
-Fits into 3d printed enclosure

-1.3 inch lcd display(might require a tv license soon)

-4 touch sensitive buttons to control lcd display

-Directly powered from the inverter, or can be powered from a 5vdc to 12vdc power supply if its used as a repeater unit


Link below shows a demo of what info the lcd of the unit can display

 

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