Glossary

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Fondu

Type of electricity supply where price integrates both the cost of the energy consumed and the cost of its delivery, in a single and non-detailed form.

Budget

Energy market

Electricity

Markets & purchases

Forward price

Price agreed today for future delivery of electricity or gas, used in futures contracts to protect against price volatility m...

Gaz

Energy market

Electricity

Markets & purchases

Forward price (forward price)

Price fixed by contract for future electricity deliveries.

Energy market

Electricity

Markets & purchases

Fossil energy

Energy obtained from the combustion of non-renewable natural resources such as coal, oil or gas.

Gaz

Electricity

Green energy

Actors & regulations

Fossilometer

Indicator: share of fossil fuels in electricity production.

Electricity

Markets & purchases

FTA

TURPE option defining the delivery price structure according to the type of meter and time classes.

Energy market

Electricity

Actors & regulations

Gas network

Infrastructures that transport gas from entry points to final consumers.

Gaz

Energy market

Consumption & sustainability

Gaspar

GRDF communicating gas meter sending the indexes remotely and facilitating the monitoring of consumption.

Gaz

Electricity

Actors & regulations

GDF

Gaz France — former historical supplier of natural gas in France, which became GDF Suez in 2008 and then Engie in 2015. (simplified version).

Gaz

Actors & regulations

Geothermal energy

Renewable energy exploiting heat stored in the earth's subsoil, used to produce electricity or for heating.

Electricity

Green energy

Actors & regulations

GO

Electronic certificate proving the renewable origin of a volume of electricity consumed.

Electricity

Green energy

Actors & regulations

Grand Carénage

Renovation program and extension of the life of French nuclear power plants.

Energy market

Production & resources

Gray hydrogen

Hydrogen produced from natural gas without CO2 capture (highly emitting).

Gaz

Actors & regulations

GRD

Manager of public energy distribution networks (e.g. Enedis, GRDF) and their maintenance.

Gaz

Electricity

Actors & regulations

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The answers to your questions

Where can I find the definition of an unknown acronym?

All the regulatory acronyms or techniques (e.g. 3RErN, PDL, ARENH) are explained in the glossary with their context.

How does the glossary help me with my decisions?

It makes it possible to understand market mechanisms, to anticipate costs and to better understand the energy players

Is the glossary updated regularly?

Yes, it is continuously enriched according to regulatory and market developments, to remain a reliable reference.

How is the glossary organized?

The terms are listed in alphabetical order and can be filtered by category (Budget, Energy Market, Green Energy, etc.).

What is the Sirenergies glossary for?

The glossary explains key energy terms, like €/MWh, TURPE or TICFE. It makes it easier to read invoices and understand markets.

What is the difference between €/MWh and kWh?

The €/MWh is a price unit used in wholesale markets, while kWh is the unit visible on your bills.

Is the glossary linked to the articles on the site?

Yes, each definition can be linked to educational articles or current events to deepen the subject.

Can I filter only tax-related terms?

Yes, just select the filter Budget to display concepts like TICFE, TICGN, or CTA.