Glossary

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MWh

Megawatt hour — unit of energy corresponding to 1 megawatt of power used per hour (i.e. 1,000 kilowatt-hours).

Electricity

Energy monitoring & management

€/MWh

Price per MWh delivered or purchased (compare offers and value volumes).

Budget

Energy market

Markets & purchases

MY

Commissioning: intervention by the network manager to open the meter and supply the site.

Gaz

Energy market

Electricity

Green energy

Markets & purchases

National Energy Ombudsman

Independent public authority responsible for supporting the amicable resolution of disputes related to contracts for the supply of electricity and natural gas.

Gaz

Energy market

Electricity

Markets & purchases

Natural gas

Fossil fuel mainly composed of methane; less emitter than coal but remains fossil.

Gaz

Production & resources

NEBEF

Device making it possible to exchange and value consumption erasure blocks.

Energy market

Markets & purchases

NemOS

Operators appointed to organize the coupling of daily electricity markets in Europe.

Energy market

Electricity

Markets & purchases

Network managers

Actors responsible for the operation, maintenance and development of electricity or gas networks.

Gaz

Electricity

Actors & regulations

NOME law

Reform of the electricity market governing access to historic nuclear electricity and competition.

Energy market

Actors & regulations

Non-controllable production medium

Production installation whose production depends on natural conditions (e.g.

Green energy

Actors & regulations

Normal temperatures

Reference temperatures used to correct consumption.

Energy market

Consumption & sustainability

Nuclear

Electricity production system based on the fission of atoms (mainly uranium) in reactors.

Electricity

Energy market

Environment

Production & resources

Nuclear park

All the reactors in service on a given territory at a given time T.

Electricity

Production & resources

Offshore wind

Electricity production by offshore wind farms.

Green energy

Electricity

Actors & regulations

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The answers to your questions

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

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.

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.

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 difference between €/MWh and kWh?

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

How is the glossary organized?

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