Fixed, indexed or dynamic tariffs: what to ask

Record the pricing rule in one sentence

Copy the applicable price, when it can change and the adjustment formula from the price list. “Fixed” alone is insufficient. An indexed tariff may change periodically with an index; time-dependent products bill differently. E-Control explains the differences.

Check meter data alongside daily routines

For a dynamic product, ask about the required measurement interval and data sharing. E-Control identifies suitable smart meter settings as a condition for spot-market products. Confirm that your installation qualifies. Record major consumption you can shift and usage tied to fixed daily routines.

Plan an annual budget without predicting prices

Compare standing charges, volume-based surcharges and the tax basis as well as energy prices. Consider how an expensive period could affect your budget. Historical or annualised current costs are not guaranteed. Fluctuations you cannot afford are an important limit when choosing a tariff.

Choose a tariff with a list of open questions

Write down three questions: How is my price calculated? What metering data does billing require? How much fluctuation can my household afford? Add the contract's answer and outstanding questions for the supplier. The Smart Meter guide helps check data; it does not confirm that your connection qualifies for a specific tariff.

Read the original sources

The factual information was checked against these sources. Checklists and labelled examples are our own presentation. Your supplier’s current documents govern your contract.

• E-Control: product types
• E-Control: variable and spot-market products