12 of 20 - Self Consumption without Backup Loads

Note: Self Consumption is the default mode for the Solis Energy Storage Inverter. This means that if Time Charging or Off Grid modes are not selected, than the inverter will operate in Self Consumption mode. To revert back to Self Consumption mode from a different mode, turn Time Charging/Off Grid Mode off. Backup mode functions independently of this mode and can be turned on or off without affecting this mode's performance. 


Self Consumption Mode does the following things:

  1. Prioritizes consuming the least amount grid power possible (hence "Self" Consumption)
    1. PV power and battery power will be used unless more more is being consumed than can be provided by the PV/Battery. 
    2. Once the battery reaches the Over Discharge SOC (State of Charge) and there is not enough PV power to cover consumption demands, then grid power will be imported. 
  2. Maximizes the amount of PV power that gets utilized by home
    1. During the day, PV power is consumed by the home as normal
    2. However, any excess PV power will directly to charging the battery
    3. Power will only be exported if the battery is full and all consumption demand is being met
  3. Only allows the battery to charge with grid power when it reaches a certain percentage (
    1. The battery will charge with PV power unless there is none and the battery reaches the Over Discharge SOC


WARNING: This mode will most likely drain the battery down every day - the more full-to-empty discharges (cycles) the shorter the life-span of the battery will be and the smaller the capacity will be over time. This is just something to keep in mind. If the grid goes down and the system goes into backup mode - the battery will drain out completely and will only charge with PV power while in this mode.


This mode activates automatically once the battery is turned on and selected. The only adjustable settings for this mode are: 

  1. Force Charge SOC (State of Charge)
    1. This setting can be found after the battery is selected in "Battery Control"
    2. This is the charge level at which the battery will be forced to accept a charge from the grid
      1. Unless you are in California and you cannot charge from the grid
        1. Then the charge will need to come from the PV
        2. VERY IMPORTANT: If the battery somehow drains down past 10%, there is a chance that the battery will not accept a charge from the grid or PV - it will then require a highly specialized device that few people have
      2. For safe measure, keep this at no less than 10%
  2. Over Discharge SOC (State of Charge)
    1. This setting can found after the battery is selected in "Battery Control"
    2. This is the charge level at which the battery will cease discharging 
      1. Important: this will happen regardless of the backup loads that will be affected
    3. This setting cannot be set lower than 10% but it is recommended to be kept between 15% and 30%
  3. Backflow Power found in Export Power Set in Advanced Settings
    1. This is how much power The inverter will allow to be exported to the grid.
    2. For maximum power exportation, set this value to the nameplate rating of the inverter
      1. Example: RHI-1P10K-HVES-5G = 10 kW = +10000W
    3. For zero power exportation, set this value to +00000W









M
Michael is the author of this solution article.

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