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SUDgaz Green 100

The ecological alternative

Your advantages

  • Fair price
  • 100% biogas
  • Support the production of sustainable energy
  • Expert service
  • Secure supply

Where does our biogas come from?

  • Biogas is a renewable energy source
  • Biogas is currently produced at three production sites in Luxembourg:
    Syndicat Minett-Kompost in Esch-sur-Alzette, BaKoNa S.à r.l. in Itzig and Naturgas Kielen SC in Kehlen
  • Biogas is produced by fermenting organic materials such as garden, kitchen and agricultural waste
  • Biogas is chemically and energetically identical to conventional natural gas

Sign up for your SUDgaz Green tariff – it’s quick & easy

Tariff details

1. Natural gas tariff

Please note that from 1 May 2022 until 31 December 2023, the State covers the distribution network costs (incl. in your natural gas tariff) as well as the monthly fee for the meter rental. This temporary subsidy applies to household and business customers in categories 1 and 2. You'll find more information here.

Natural gas tariff
"SUDgaz Green 100"

Price to be paid by the customer

State subsidy on
energy price

Official price
"SUDgaz Green 100"
excl. network costs

  ct/m3 ct/m3 ct/m3

Supply of natural gas


0 91.55



Payment by direct debit

- €1.00/month 

Electronic billing

- €0.50/month 

Contract management via “mySUDenergie” *

- €12.00/year 

* Please refer to the general conditions for using the portal

2. Service price**

Effective power (kW)

Fee (€/month, ex VAT)

Effective power (kW)

Fee (€/month, ex VAT)

< 10


≥ 30


≥ 10


≥ 40


≥ 12


≥ 50


≥ 15


≥ 60


≥ 20


≥ 80


≥ 25


≥ 100


 ** Takes into account the effective power of all installed appliances.

3. Distribution network costs

Meter type


Consumption component (ct/m3)

Monthly fee for access to the network (€ / month)

Category 1***: G4-G16

SUDenergie network



other networks



*** for other networks and category 2 : see the official tariffs of the different network operators

4. Natural gas tax and C02 tax on natural gas consumption


Natural gas tax (ct/m3)

C02 tax (ct/m3)

Category A : yearly consumption of ≤ 50.045 m3/year



5. Meter rental

The following prices apply for supply in the SUDenergie network. For meter rental in the other networks, please contact the respective network operator.

Private customers (i.e. households) are generally in category 1.


Meter type

Monthly meter rental (ex VAT)


G4 – G16



G25 – G40





G100 – G160






6. General

All prices on this page are exclusive of VAT (7%).

You can download our current tariff datasheet here

All the documents you can download

Demande de fourniture de gaz naturel (Natural gas supply enquiry)
Contrat de fourniture intégrée - Conditions Générales (General Terms and Conditions)
Procuration pour encaissement par ordre de domiciliation bancaire (Direct debit mandate)
Fiche de résiliation de contrat (Moving/cancellation form)
Tarifs en cas de non-paiement (Non-payment charges)

Tariff datasheets archive

SUDgaz Green 100 tariff datasheet valid from 01/05/2023
SUDgaz Green 100 tariff datasheet valid from 01/04/2023
SUDgaz Green 100 tariff datasheet valid from 01/03/2023
SUDgaz Green 100 tariff datasheet valid from 01/01/2023
SUDgaz Green 100 tariff datasheet valid from 01/10/2022
SUDgaz Green 100 tariff datasheet valid from 01/03/2022
SUDgaz Green 100 tariff datasheet valid from 01/02/2022
SUDgaz Green 100 tariff datasheet valid from 01/01/2022
SUDgaz Green 100 tariff datasheet valid from 01/12/2021
SUDgaz Green 100 tariff datasheet valid from 01/11/2021
SUDgaz Green 100 tariff datasheet valid from 01/10/2021
SUDgaz Green 100 tariff datasheet valid from 01/09/2021


To natural gas tariffs

Which tariff is right for me?

As a household, you can choose between the bio natural gas “SUDgaz Green” and the classic natural gas “SUDgaz Classic”.  With bio natural gas, you can choose between 50% or 100% biogas. The rest is conventional natural gas.

What are the advantages of natural gas?

Natural gas is a natural energy source that guarantees you numerous advantages without having to make any other concessions.

Natural gas supports the energy transition
The possibility of adding biogas to conventional natural gas further reduces the already low emissions.

Natural gas is practical
Compared to other energy sources such as fuel oil or wood pellets, you don’t need to keep ordering or store natural gas. No tank or storage space is needed.

Natural gas is convenient
It feels good to live in properly heated rooms. Reliable heating technology, adapted to your needs, ensures comfort in your home.

Natural gas is environmentally friendly
Natural gas and fuel oil are fossil fuels that emit CO2. when burned. However, the combustion of natural gas emits much less CO2 and much less particulate matter than the combustion of heating oil. The CO2 emissions of your heating system can be reduced by 24% by switching to the environmentally friendly energy source of natural gas.

Natural gas is economical
You can count on proven, efficient natural gas technologies that are continually being further developed – all at reasonable investment costs and affordable consumption prices.

Natural gas is clean
Not only is natural gas an efficient and convenient way to heat your home, it also has environmental benefits: natural gas is the fossil fuel with the lowest emissions. Like biogas, natural gas improves the environmental balance – whether for heating or cooking.

Which natural gas tariffs are available to me at SUDenergie?

SUDenergie offers gas tariffs for both households and companies. Please refer to our product pages for more information.

How can I register for a tariff online?

Follow the step-by-step instructions to become a SUDenergie customer or use the tariff calculator to choose your preferred tariff.

If you would like to change your existing SUDenergie natural gas tariff, write an email to frontoffice@sudenergie.lu.

Once I am a customer, how will I be informed of price adjustments?

We will inform you of any price changes at least one month in advance and draw your attention to them on our website as well as in the Luxembourg daily press.