Streetlights - ISU Billing

Streetlights can be managed and billed in different ways in ISU. Streetlights can be managed at Installation Facts level as an Operand or in the installation Structure as devices.

There are multiple Variants available in ISU which can be used to perform billing of streetlights. We will be looking at the below variants.

REFVAL01 - Valuate a Reference Value with a Price

REFVAL02 - Convert a Reference Value to Demand

REFVAL03 - Determine Consumption for Lighting Unit from Burning Hour Calendar

REFVAL01

REFVAL01 has 2 input operands – (REFVALUE and TPRICE) and one output operand – AMOUNT.

Create a Rate with Facts Permissibility and Insert variant REFVAL01. Provide the Input Operand 1 which will be maintained at the Installation facts, Input Operand 2 which will hold the price key, and Output Operand which will hold the amount.

When creating the input operand for REFVAL01, verify "Rate type required" checkbox is selected.

Price of $2.5 per month is configured.

Maintain the Reference value Operand at the Installation level.

• Entry value – Installed value of device.
• Value to be billed – Can be a value other than Entry value. This value is used in consumption billing. If value to be billed is not entered, the value from “Entry value” is automatically copied.
• Rep. factor – Determines how many times the same type of reference value exists. Value to be billed is multiplied by repetition factor. For example, if there are 10 streetlights, we can create one reference value and provide repetition factor as 10.

Bill The account.

Since we selected Period control as “00 – To the day” at the rate level, price for 1 year is calculated first to get the per day price and then price for time portion is calculated. This can be changed to monthly by choosing PC as 01 or 02.

Billing quantity = 10*20 = 200 (val.to be billed * rep. factor)

Price for a year = 2.5 *12 = 30

Time portion = 31 (Number of days in the billing period)

30/365 = 0.08219 * 31 = 2.5479 (Price for 1 day)

2.5479 * 200 = 509.59

REFVAL02

REFVAL02 is used to convert a Reference value to demand and has one input operand – REFVALUE and one output operand – DEMAND.

Create a Rate with Facts Permissibility and Insert variant REFVAL02. Provide the Input Operand 1 which will be maintained at the Installation facts and Output Operand which will hold the demand.

Since REFVAL02 outputs Demand, we need to add one more Variant to calculate the amount. We will add DEMAND01 and provide the output operand of REFVAL02 as the input operand for DEMAND01

Price of $2 per month is configured.

Maintain the Reference value Operand at the Installation level.

Bill The account.

Billing quantity = 20*3 = 60 (val.to be billed * rep. factor)

Price for a year = 2*12 = 24

Time portion = 31 (Number of days in the billing period)

24/365 = 0.06575 * 31 = 2.03835 (Price for 1 day)

2.03835 * 60 = 122.30

REFVAL03

REFVAL03 is used when we are calculating the consumption using the burning hour calendar.

REFVAL03 has 1 input operand – REFVALUE and 1 output operand – QUANT.

We begin by configuring the Operation Types for Lighting and create an operation type.

Operation Type defines the type of lightning being used.

Navigate to the configuration path below:

Contract Billing ➡️ Billing Master Data ➡️ Rate Structure ➡️ Operands ➡️ Lighting ➡️ Define Operation Types for Lighting.

Navigate to the configuration path below to configure the Types of burning hour Calendar Maintenance:

Contract Billing ➡️ Billing Master Data ➡️ Rate Structure ➡️ Operands ➡️ Lighting ➡️ Define Types of Burning Hour Calendar Maintenance

Here we can choose whether Burning Hour is to be maintained on a Daily or monthly basis. 

Navigate to IMG configuration path below to configure the Burning hour Calendar:

Contract Billing ➡️ Billing Master Data ➡️ Rate Structure ➡️ Operands ➡️ Lighting ➡️ Maintain Burning Hour Calendar.

The Burning Hour Calendar contains the total number of hours where the lightning unit was operational in the given period.

Create a facts permissible Rate. Add variant REFVAL03 and provide the Input and Output Operands. The input operand should have the 'Rate type required' checkbox checked and ‘Reference value type’ selected as lightning.

Since REFVAL03 outputs Quantity, we need to add one more Variant to calculate the amount. We will add QUANTI01 and provide the output operand of REFVAL03 as the input operand for QUANTI01.

Create a Rate fact group and add price to the rate facts. Quantity can be set to ‘0’ and set the reference value as ‘Required value’.

Add the Refval03 operand in the installation facts.

Bill the account

Value from Burning hour calendar for 01/01 to 01/31 = 200

200 x 10 (val. To be billed) = 2000 (Billing Quantity)

2000 * 10(price) = $20,000