# Tariff Service
A user can create one or multiple tariff templates, to invoke them in different application scenarios.
At the Application page, select Tariff Template to enter the Tariff Template page (shown below). This page displays all tariff templates already created by the user and its sub-users.

# Add Template
Click on the upper right corner of the Tariff Template page, to create a new tariff template:

- Select the currency unit according to your situations.
- Select the template type. Here take Import template as an example.
- Add template name and other information.
- Select the tariff setting type: TOU or fixed tariff. Here take TOU as an example. Tap the time end column of Period 1, to divide one day (24h) into different time periods. The minimum period is 15 minutes. Define each period according to the grid electricity usage and set the corresponding price.
- Click Save, to complete template creation.
# View, Edit, and Delete Template
On the Tariff Template page, select one from the already created templates. Tap it to enter its detail page. You can view the template name and tariff setting type.

Tap at the upper right corner, to select Edit from the drop-down menu. You can modify the template name, template type, template description, tariff setting type, and price.
Tap at the upper right corner, to select Delete from the drop-down menu. You can delete the template directly.
[!Note] If the current template has been applied to a plant, it cannot be deleted.