{"id":1543,"date":"2023-06-15T15:20:57","date_gmt":"2023-06-15T13:20:57","guid":{"rendered":"https:\/\/logikeditor.de\/?post_type=best-practice&p=1543"},"modified":"2023-06-15T16:37:11","modified_gmt":"2023-06-15T14:37:11","slug":"mini-pv-energieueberschuss-fuer-getraenkekuehler","status":"publish","type":"best-practice","link":"https:\/\/logikeditor.de\/en\/best-practice\/mini-pv-energieueberschuss-fuer-getraenkekuehler\/","title":{"rendered":"Mini PV Energy Surplus Beverage Cooler"},"content":{"rendered":"

Variable use of mini-PV energy surplus<\/span><\/strong><\/h2>\n

Step by step.<\/span><\/strong><\/p>\n<\/div><\/div>

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<\/i>Associated logic group \"Balcony PV surplus energy<\/span><\/a><\/div>

After investing in a PV system, the question arises as to how the self-generated energy can be optimally used. Often, mini PV systems generate more energy than the basic consumption of the connected appliances requires. The purchase of an energy storage unit is still quite expensive, and partial feeding into the grid is not economically viable.<\/p>\n<\/div><\/div>

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Use of the energy surplus for consumers: Beverage cooler
\n<\/b>In this case, the surplus electricity is used to supply a beverage cooler. It should be noted that the cooler does not require continuous energy. More energy is needed to lower the temperature than to maintain the temperature level. Since the energy surplus is also not constant, the cooler switches on and off irregularly. Without an energy buffer, the contents of the cooler would heat up to ambient temperature overnight while being pleasantly cooled during the day. Similar scenarios are also possible with other devices such as air purifiers, dehumidifiers, etc.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Recording of the total consumption in the household with opto-coupler\/KNX interface or radio solutions
\n<\/strong>The current total consumption of the household can be read in quite easily via an opto-coupler\/KNX interface from the house connection meter. Alternatively, there are various radio solutions such as Shelly EM, Tasmota or other radio protocols. To find corresponding proposed solutions with prepared logic groups, use the search function or the following logic group: Energy meter Opto-coupler Wifi with value adjustment<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Selection of control options
\n<\/b>Shelly switch actuators or Shelly intermediate plugs can be used for switching the cooler. A Shelly switch actuator allows the chiller to be switched, the current power to be detected and the chiller temperature to be integrated into the KNX system. This allows the chiller temperature to be displayed and further control options to be added. It is important to note that control is not continuous when there is a surplus of energy and can lead to temperature fluctuations. However, these fluctuations should not have a negative impact on the shelf life of the products in the cooler.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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