Glossary

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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

Carbon Balance®

Method for accounting for greenhouse gas emissions from organizations, sites or products.

Environment

Consumption & sustainability

Carbon neutrality

Situation in which organizational greenhouse gas emissions are offset by equivalent reductions or removals.

Environment

Consumption & sustainability

Centralization of contracts & invoices

Combines multi-supplier contracts and invoices in a single space to simplify monitoring and control.

Budget

Energy market

Markets & purchases

Charcoal

Solid fossil fuel used historically for electricity production and the steel industry.

Energy market

Environment

Actors & regulations

Climate

Factors influencing energy consumption and production, in particular through temperature or climatic hazards.

Energy market

Consumption & sustainability

Cogeneration

Simultaneous production of electricity and heat in the same installation.

Electricity

Gaz

Green energy

Actors & regulations

Commercial/physical exchanges

Electricity flows transiting between market areas or between countries, materializing energy imports and exports.

Energy market

Electricity

Markets & purchases

Communal built heritage

Set of public buildings managed by community (schools, gymnasiums, town halls), subject to energy performance obligations.

Environment

Actors & regulations

Communicating meters

Meters (Linky, Gazpar...) that automatically transmit indexes for accurate monitoring and billing.

Gaz

Electricity

Markets & purchases

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The answers to your questions

Can I filter only tax-related terms?

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

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.

How is the glossary organized?

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

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

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.