To be added for annual accounting (3.5.0):
To associate an account with a host click on the individual account below the Account type. The section on the far right lists all the associated account hosts available in the scenario. [If a host has been associated with a previous account, it will not appear in the list.]. Click on the required host.
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Annual accounting is a custom assessment method for regulated water in resource assessment module. The general principles for an annual accounting system are:
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To add an account in the table, click Add Account below the Accounts table to open the Add New Account dialog (shown in Figure 3) and add an account in the table. The number of hosts available in a scenario will determine the number of accounts in an account type. To associate an account with a host, click on the individual account below the Account type. The section on the far right lists all the associated account hosts available in the scenario. Then, click on the required host.
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| Note: If a host has been associated with a previous account, it will not appear in the list. |
Hosts in a scenario may consist of water users, bulk licensing nodes and the environmental demand node.
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The Allocation tab shows how resources are distributed, along with the proportion that is carried over. This view changes with how Configuration of the Resource and Rural columns depends on the how the Account type has been configured, in particular the Method to apply for this account type in ARA table parameter. Figure 4 shows how the Rural column changes with the varying parameter. Additionally, the ARA table will display as the variations shown in Table 3.
Figure 4. Annual accounting, Allocation tab
Table 3. Annual accounting, Allocation,
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Variations
| Menu option | Resulting variation |
|---|---|
| Percent (with linked volume) | The Account Type column can be edited directly on the table. The Resource column is calculated automatically based on the percentage . Unclear |
| Function | The Resource column is calculated based on the function specified at the Account or Account Type level (Table 5). |
| Monthly-varying | Here, you must set the date for resource calculations. Click the number below the Account Type name, the monthly varying window will display as in Figure . You can set the resource of each monthly manually or by import or export data using the corresponding buttons. If interpolate is chosen for calculation method, the Resource of the first column will calculated automatically based on current and next month values. More details about interpolate can be found in SRG. If Threshold is chosen, Resource of the first column will get value automatically form current month. Unclear |
| Percent (with function) | Function below the account type is editable because functions of this method cannot be set at a lower level. |
| Volumetric | the account type has a unit of (ML) and the rural column can be editable by typing number directly to the table. Then the value in Resourcecolumn is equal to that in Account Type column. Unclear |
Trigger Priority
Figure 5 shows the priority of the trigger. They Trigger Priority tab. Priorities are separated into two types based on Timestep Beginning and Timestep End. You can re-order the triggers to set the priority.
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| Note: Trigger must be configured before prioritising them (refer to Adding a trigger to an account type for defining a trigger). |
Further explanation required
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An annual accounting system may contain several account types. Each account type can also include many accounts. As To add an account type, as shown in Figure 1, right click on the annual accounting system and choose Add Account Type.
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Configuring an account type
The parameters that must be defined are described Figure 6 shows the configuration parameters required for an account type. These are explained further in Table 4.
Figure 6. Annual accounting, Account type, Configuration
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| Item | Description |
|---|---|
| Debit Type | Determines how water is deducted from all accounts associated with this continuous accounting system; based on either order or extractions. |
| Priority | A higher priority translates to resources being allocated prior to a lower priority user. |
| Minimum Balance | If a minimum balance is defined, then order or extractions will not be allowed if it will cause the balance to drop below the minimum specified. If choosing Unrestricted, also specify the Minimum Volume. |
| Maximum Balance | Defines the maximum volume of water which can be held in an account. If an allocation results in this limit being exceeded, then the excess amount is redistributed to other accounts. |
| Allocation Calculation | The default is Available Resource Allocation Table, which opens the ARA table. The options available for this are shown in Table 2. Choose Function to determine an account type's allocation using this method. This function may reference a wide range of variables available in the model, including allocations to other account types and resource assessment system. The Allow Decrease checkbox controls whether or not an account’s allocation can go down reduce within the water year. |
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| Note: The Method to apply for this account type in ARA table drop-down menu has several options available (as shown in Figure 6), each with a different set of input parameters, explained in Table 5. The option chosen here affects the view in the Allocation tab (Figure 4). |
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| Method | Input parameters | |
|---|---|---|
| Function | Enter a function using the Function Editor | |
| Monthly varying | Choose the appropriate Calculation Method - either Interpolate or Threshold | |
| Percent (with function) | ||
| Percent (with linked volume) - default | Accounced Increment checkbox and corresponding field Maximum Announced Percent checkbox and corresponding field Use Shares checkbox Shares - Corresponds to the | |
| Volumetric | Set the volume of the |
Accounts
Choose the Accounts tab to view a summary of all the accounts configured in the account type. The Accounts table is similar to that shown in Figure 2, with parameters summarised in Table 2.
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These are explained in further detail next.
Adding an account
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to an account type
HereTo add an account to an account type, you can must configure Number of Shares, the Initial Account Balance and Previous Usage parameters (as shown on the left side of Figure 7). To link the account to a host, choose the water user under Associated Account Host. The associated account lists all the water user nodes in the project. Once these have been configured, you will notice that the value configured for the Number of Shares relates to the Demand distribution item of the water user node (shown on the right side of Figure 7). Refer to Demand distribution for details on configuring the water user node. Notice also that the Account Distribution table (in the node's feature editor) shows details of the resource assessment system.
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| Note: Each account can have only one water user associated with it. |
Figure 7. Annual accounting, Account type, Add account
Adding a trigger to an account type
Triggers are used to initiate or cancel certain actions for an account and can be added at any level in annual accounting. To add a trigger, right click on the account type and choose Add trigger. In the resulting right side panel (as You can rename or delete an existing trigger by right clicking the trigger and choosing the appropriate contextual menu option.
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| Note: An account can have several triggers, each can be designed to initiate a particular action. |
As shown in Figure 8), you must configure the Trigger and Execution options (as shown in Figure 8) and the resulting Action Configuration panel below will change depending on what is chosen above. You can also trigger actions using a function. This is accomplished by choosing Function as the Trigger optionfollowing parameters under Trigger Configuration:
- Trigger - the type of trigger. For example, to trigger an action using a function, choose Function in the Trigger drop-down menu. The format of a function should be like this: “IF A>B, 1, 0”, where “1” indicates the action will occur and “0” means the action will not happen
- ; and
- Execution - when to execute the trigger (ether at the beginning or end of the time-step.
The resulting Action Configuration panel will change depending on what is chosen under Trigger Configuration.
Once triggers are configured, you can prioritise them using the Trigger Priority tab (Figure 5).
Definition of parameters.
Figure 8. Annual accounting, Account type, Trigger
Adding a usage limit to an account type
Right click the account or account type and choose Add usage limit. The GUI is similar for that in Continuous Accounting (here). You can limit water usage for all accounts by absolute volume or per-unit-share for moving water year or movable time window. An account can have several usage limits, each can be designed to initiate a particular limit. Just like triggers, you can rename or delete usage limits.When account, trigger and water usage limit are all set up, you can go back to account type to configure and see summary information of all added accounts.