How to safe more than one value in a component?

Development
1

Hello together

At home, we have a batterie from the company Sonnenbatterie. At the moment I’m writing a component, that can read from the batterie API because there doesn’t exist something for homeassistant.
However, there is more then 1 value, which is important for the powercontrol. I get each time this json:

{"BackupBuffer":"0","BatteryCharging":false,"BatteryDischarging":true,"Consumption_W":631,"Fac":50,"FlowConsumptionBattery":true,"FlowConsumptionGrid":true,"FlowConsumptionProduction":false,"FlowGridBattery":false,"FlowProductionBattery":false,"FlowProductionGrid":false,"GridFeedIn_W":-40,"IsSystemInstalled":1,"OperatingMode":"2","Pac_total_W":591,"Production_W":0,"RSOC":60,"SystemStatus":"OnGrid","Timestamp":"2019-06-28 22:28:07","USOC":57,"Uac":239,"Ubat":49}

How should I save around 5 to 6 values each round I’m checking the API? The only way I see is to do it, is to make a separate table in the database. Or is there another Idea how I could do it. Probably I overlook something.

I already thank you for your help.

2

Why not make different sensors for each value?
I receive the following json over mqtt:

{'sw_release': 'S10_2018_086', 'power_add': 0, 'power_grid': 0, 'serial_number': 'S10-49184000xxx', 'emergency_power_status': 2, 'power_pv': 0, 'srv_online': True, 'self_consumption': 100, 'autarky': 100, 'power_home': 966, 'sys_time': '2019-06-29T02:38:03.000449', 'bat_soc': 65, 'power_bat': -966}

and the sensors:

sensor:
  - platform: mqtt
    name: e3dc_firmware
    state_topic: "home/e3dc/rscp"
    value_template: "{{ value_json.sw_release }}"

  - platform: mqtt
    name: e3dc_pv1_power
    unit_of_measurement: 'W'
    state_topic: "home/e3dc/rscp"
    value_template: "{{ value_json.power_pv }}"

  - platform: mqtt
    name: e3dc_pv2_power
    unit_of_measurement: 'W'
    state_topic: "home/e3dc/rscp"
    value_template: "{{ value_json.power_add | int | abs }}"

  -  ...