Monthly utility bills are often directly related to monthly energy consumption and monthly peak demand. The approach of tariff analysis is to allow you to model the individual component charges that make up the utility bill and report the results on a monthly basis. The calculation is organized in hierarchy for economics charges illustrated below.
Any charges included in the EnergyCharges category are added together at the first step. The EnergyCharges, DemandCharges and ServiceCharges are added together to form the Basis.The Basis, Adjustments and Surcharges are added together to form the Subtotal. And finally the Total is obtained from the summation of Subtotal and Taxes, where the Total represents the total monthly charges on that tariff for the energy source used. In addition, each category name is usually used as a source variable when setting charges and doing tariff calculation.
In detail, this module consists of the name of the tariff, the type of tariff, and other details about the overall tariff. The objects such as Tariff, Charge (either Simple or Block), Qualify, Ratchet stayed in the same tariff package will perform tariff calculation with tariff name being given on Tariff tab.
Multiple Tariff objects can be modelled, and it is common that electric and gas utilities have more than one rate that may be used. However, only one Tariff for each Output Meter object and Group Name is shown in the Economics Summary Report. The one that is shown in the report is chosen by first eliminating Tariff objects that are not qualified due to their Qualify objects. If more than one Tariff object remains, the one that has the lowest cost for a combination of an Output Meter and Group Name will be selected. If the Group Name field is not checked, then the lowest cost Tariff object is chosen for each Meter.
There are 5 tabs on the Tariffs dialog: