Tariff Components

Tariffs

The tariff components are important interfaces to the components supplying and feeding-in. They represent all operating costs and revenues associated with suppliers (utilities) and feed-in components. There are the following tariff component templates:

Tariff in the Component Ribbon

In the component ribbon, there is the Tariff group especially for the tariff components, where costs and revenues can be added to the Input data of the opened tariff component (see the following figure).

Using the split button Costs you can add the following costs to the opened tariff component depending on the type of tariff:

Working price (energy dependent costs),

Block prices,

Energy demand costs without peak load optimization (demand price, service price),

Energy demand costs with peak load optimization (demand price, service price),

Demand costs from load connection,

Constant costs (miscellaneous costs),

CO2 costs.

The added component parts can be removed again via their menu in the form. Alternatively, these tariff constituents can also be added directly in the form of the tariff with the plus symbol.

The Revenues from feed-in tariff (Basisc revenues), Demand rate revenues (revenues per power), and Constant revenues can be added via the corresponding split button in the ribbon (see following figure).

Supply and Feed-In

In principle, a distinction is made between the two directions of Supply (purchase) and Feed-in for a tariff. There are separate forms for the input and output data for the supply and feed-in respectively: Typical input data (supply), Typical input data (feed-in), Typical output data (supply), and Typical output data (feed-in).

Typical Input Data

The Typical input data depend on the Kind of tariff.

If you select Only feed-in, only the data from the Typical input data (feed-in) form are used, and the data for the supply are ignored. The opposite is true if you select Only supply. A red warning in the form indicates this.

An expert tip introduces the possibility of selecting potentially more favorable special MILP formulations for the electricity tariff.

Energy Dependent Costs

The Energy dependent costs are given as prices per energy unit. In the Electricity Tariff there is in the first place the average electricity price (Energy costs), e.g., 5.00 ct/kWh, in the Fuel Tariff there is the Average fuel price, which can be entered in the units ct, EUR, or TEUR per kilowatt hour, megawatt hour, megajoule, or gigawatt hour. Grid usage charge, Renewable Energies Act levy, Cogeneration levy, Concession fee, Electricity tax, Paragraph 19 levy, Offshore liability levy, and the Switch-off levy are also Energy-related costs.

Mass Flow Dependent Costs

In addition to Energy dependent costs, Mass flow dependent costs, e.g., in EUR/t, can also be entered in the Steam Tariff component.

Graduated Prices

Block prices can be added via the Costs split button in the component ribbon (see above) or with a click on the plus symbol in the form of the tariff (see following figure).

The drop-down list for selecting the Reference period (Block usage per day, month, quarter, or year) and the input fields for the Estimated supply (consumption), five energy Working price blocks graduated according to Supply (consumption) blocks, and the Remaining usage price appear (see the following figure).

In this way, different price scales can be added and named separately.

Enter the supply as Estimated input value.

Energy Demand Costs

The energy demand costs refer to the highest power called up or provided in a certain period, e.g., one year in 15 minutes resolution.

There are three ways to specify the Energy demand costs (also named service price, performance price, and demand rate), which are available depending on the tariff component:

How to specify peak load time windows you learn in the linked article.

Constant Costs: Basic Costs

As Miscellaneous Constant costs, you can enter basic charges and basic costs incurred annually, daily, or hourly (see following figure).

CO₂ Costs

The CO₂ price is calculated with the Price for CO2 certificates (e.g., in EUR/t) and the CO2-emission factor (e.g., in t/MWh), which are stored under Costs CO2 (see previous figure).

Rate of Price Increases

For all tariffs, you can enter one or more rates of price increases, divided according to cost items. When you select Different price inflation rates for each cost component, an additional field for entering the inflation rate is displayed under each cost item.

Stakeholders/Actors

At the bottom of the input data form of the tariff components is the selection for using the stakeholders (see figure above). When selecting same stakeholder for all cost components, the two input fields for the debited and the benefited stakeholder are displayed directly below. When selecting different stakeholders for each cost component, two additional fields are displayed under each cost item for selecting the actor to be debited and the actor to be benefited.

Tip for Experts: Developer Options

In the Developer Options form, located under Notes and tooltip, under the Configuration of the selectable cost items heading, you can specify whether the following component parts should be addable in the component’s forms:

By default, this option is enabled in most tariffs, but if you want slimmer forms, you can deselect these items here and add them back later if needed.

When using demand costs with peak load optimization, modeling experts can set the tolerance for the annual demand price in the simplified preliminary stage under Tolerance optimized demand costs.

In addition, modeling experts can specify the maximum power for calculating the tariff part Energy demand costs with peak load optimization under Maximum yearly power supply (optimized).

For some components, e.g., the Electricity Tariff, the form contains additional Developer options for modeling experts.