Glossary

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Decarbonization rate

Share of energy consumption that does not emit greenhouse gases.

Gaz

Consumption & sustainability

Decarbonized

Production or consumption of energy that emits no or few greenhouse gases.

Gaz

Consumption & sustainability

Decennial visit

Inspection carried out every 10 years on nuclear installations.

Energy market

Production & resources

Discrepancies

Discrepancies between actual and expected consumption of the balance manager.

Energy market

Consumption & sustainability

Distribution network

Managed by Enedis, the electricity distribution network serves end customers up to their meters.

Electricity

Actors & regulations

EDF

Public company, historical electricity producer-supplier in France, operator of nuclear power plants.

Energy market

Electricity

Actors & regulations

EEC

Device requiring energy companies to finance energy-saving actions at their customers.

Green energy

Environment

Budget

Actors & regulations

EEX

European energy exchange allowing the exchange of electricity, gas and emissions quotas.

Gaz

Energy market

Electricity

Markets & purchases

EJP

Old rate encouraging to reduce consumption for 22 days/year when the price became very high.

Energy market

Electricity

Actors & regulations

ELD

Suppliers and network operators present on around 5% of French territory, excluding areas covered by EDF and Engie.

Energy market

Markets & purchases

EMS (Energy Management System)

Computer system for monitoring and controlling energy consumption (e.g.

Electricity

Gaz

Budget

Energy monitoring & management

ENTSO-E

Association of electricity transmission system operators in Europe.

Electricity

Actors & regulations

EPEX SPOT

Short-term electricity exchange in Europe, for “spot” and day-ahead/intraday exchanges.

Energy market

Electricity

Markets & purchases

EPR

New generation European pressurized nuclear reactor.

Energy market

Production & resources

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The answers to your questions

How is the glossary organized?

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

Is the glossary updated regularly?

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

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.

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.

Can I filter only tax-related terms?

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

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 linked to the articles on the site?

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

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.