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The “Heating/Water Billing” shows the billing details based on Heating Meaters, Heating Cost Allocators, and Water Meters.

  1. User can select the “Group”.

  2. It shows the Company Billing Setup. User can update if the User Permission is allowed.

    1. Heating Annual Cost
    2. Total Company Area
    3. Heating Cost Fixed Percent
    4. Heating Cost Variable Percent
    5. Cold Water Price per m³
    6. Hot Water Price per m³

  3. It shows the selected Group Billing Setup. User can update if the permission is allowed.

    1. Group Area

  4. It shows the Meters:

    1. Heating Meter - used to calculate the Heating Cost (if it’s Domestic Heating Water Meter, it’s also used to calculate the Hot Water Cost
    2. Heating Cost Allocator - used to calculate the Heating Cost
    3. Water Meter - used to calculate the Cold/Hot Water Cost

  5. User can create/update/delete meters if the permission is allowed.

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  6. User can change the Billing Date (Year and Month), and it shows the Meter’s consumption (Power Consumption, Consumption Units, Water Consumption) in Period.

  7. It’s also updated the annual billing for selected Group by Billing Date.

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Case 1. Heating Cost Calculation (Use Heating Meters)

  1. Get all Heating Meter’s Power Consumption in Billing Month and in the Company (power_consumption_i)
  2. Sum the consumptions for Company (company_power_consumption) and Group (group_power_consumption) *
  3. The variable cost for Group (shared_variable_cost) and fixed cost (shared_fixed_cost) are calculated:
total_variable_cost = company_annual_cost * variable_percent / 100
total_fixed_cost = company_annual_cost * fixed_percent / 100
shared_variable_cost = total_variable_cost * group_power_consumption / company_power_consumption
shared_fixed_cost = total_fixed_cost * group_area / company_area
  1. The Heating Cost for the group (group_heating_cost) is calculated:
group_heating_cost = shared_variable_cost + shared_fixed_cost

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