Glossary

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CJN

Daily consumption during colder times of the year.

Gaz

Consumption & sustainability

CMDPS

Monthly component for exceeding the subscribed powers.

Energy market

Markets & purchases

CO2

Carbon dioxide, greenhouse gas, is often taken into account in green or compensated offers.

Environment

Actors & regulations

CO2 emissions

Carbon dioxide emissions linked to the combustion of fossil fuels.

Gaz

Environment

Consumption & sustainability

CO2eq

Unit used to express the impact of various greenhouse gases in carbon dioxide equivalent. (simplified version).

Gaz

Environment

Consumption & sustainability

CPL

Contractual daily consumption limit for the customer under an interruptibility contract.

Gaz

Markets & purchases

CRE

Independent administrative authority that regulates the French electricity and gas markets.

Gaz

Energy market

Electricity

Actors & regulations

CSPE

Contribution to the Public Electricity Service — Tax integrated into the electricity bill.

Electricity

Budget

Markets & purchases

CTA

Fixed tax applied to electricity and natural gas subscriptions.

Electricity

Markets & purchases

CU

Price structure adapted to occasional or irregular uses, unlike Long Use (LU).

Energy market

Electricity

Actors & regulations

CU/LU

Indicators of network use: capacity actually used and length of network mobilized.

Energy market

Markets & purchases

Cal26

Abbreviation for “Calendar 2026”: expected average energy price for the calendar year 2026.

Energy market

Markets & purchases

Capacity auctions

Mechanism to guarantee the balance of energy supply and demand, especially in winter. (simplified version).

Energy market

Markets & purchases

Capacity market

French device aimed at guaranteeing the security of electrical supply.

Energy market

Consumption & sustainability

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The answers to your questions

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.

Is the glossary updated regularly?

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

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.

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

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 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 difference between €/MWh and kWh?

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