Renewable gas, a major vector in the energy transition

Date :
01 June 2017 00:00


French storage operators release the last lock on the injection of biomethane into the gas distribution and transport networks.

Storengy and TIGF decided to allow the injection of first-generation biomethane into their underground storage, following joint technical studies. By significantly increasing the potential for biomethane injection into the grid, this decision represents a major step towards achieving the ambitious objectives set by the French State. The Energy Transition for Green Growth Act sets a level of 10% for the share of renewable gases in consumption by 2030.

The work carried out by Storengy and TIGF on the biomethane components currently injected into the grid has demonstrated that its integration into underground storage facilities generates no additional impact compared to natural gas. As responsible operators, Storengy and TIGF will remain vigilant with regular composition sampling and where necessary, will propose changes to regulatory and normative frameworks with a view to preserving their infrastructures.

This progress forms part of the development of the injection of renewable gases into the grids, which includes the flow of biomethane from distribution networks to transport networks. To this end, GRTgaz is launching two pilot "reverse flow plant" facilities located in Pontivy (Morbihan) and Pouzauges (Vendee), which will absorb surplus biomethane when local production exceeds demand. These two units are part of a territorial movement for the gas sector and will allow GRTgaz to test different network configurations and technologies. Over thirty reverse flow plant units could be installed on the French grid by 2025, representing an investment nearing €100 M for GRTgaz and €10 M for TIGF.

Such developments in storage and transport grids offer new opportunities for forward-looking projects and generate visibility for investors by guaranteeing an outlet for energy, the main source of remuneration for biomethane producers. In 2016, 26 biomethane injection units injected 215 GWh into the natural gas grid, representing 0.05% of France's gas consumption. At the end of 2016, 241 projects were waiting to be connected to biomethane injection units, 90% of which were on distribution networks. This could represent 5 TWh/year of consumption, enough to supply 416,000 customers or 22,000 buses running on biomethane fuel (BioNGV).


Press contact Storengy
Hanène Massé
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Tel.: 01 46 52 32 42
Fleur Benoit
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Tel.: 01 46 52 30 08

Press contact TIGF
Bernard Le Page
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Tel.: 05 59 13 36 81 / 06 18 09 65 63

Press contact GRTgaz
Claire Maindru
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Tel.: 01 55 66 40 84


About Storengy
Storengy, a subsidiary of ENGIE, is Europe's leading operator of natural gas storage facilities. With 60 years of experience, it designs, develops and operates all types of storage facilities, delivering innovative products developed through extensive experience in many different markets and their respective environments. Storengy operates in Europe (France, Germany and the United Kingdom) and has gradually expanded its operations around the world. It owns 21 natural gas storage sites with a total capacity of 12.2 billion m3. As an active player in the energy transition, Storengy offers its technical expertise to numerous partners around the world with a view to developing geothermal projects (heat and power production) and innovative energy storage solutions.

About TIGF
TIGF (Transport et Infrastructures Gaz France) operates over 5,000 km of pipeline network and two underground storage sites, representing 16% and 24% of national capacities respectively. TIGF is a major player in the energy sector, with over 70 years of operational experience in the South West of France.
To meet its public service obligations, TIGF transports natural gas to over 300 delivery points under optimum conditions in terms of cost, reliability and safety.
Its location at mid-distance between the North Sea gas reserves and those of North Africa means it enjoys a strategic position at the crossroads of Europe, providing the interconnections that guarantee security of supply within Europe.
TIGF is conscious of the essential role to be played by gas in the energy transition and seeks to drive this green revolution forward through its deeper involvement in biomethane production, natural gas for vehicles and Power-to-Gas.

About GRTgaz
GRTgaz is one of Europe’s leading natural gas transmission companies and a world expert in gas grids and transmission systems.
In France, GRTgaz owns and operates 32,450 km of underground pipelines and 28 compressor stations to transmit natural gas between suppliers and consumers (distributors or industrial firms directly connected to the transmission system). GRTgaz performs a public service role in guaranteeing the security of supply to consumers and sells transmission services to system users.
A significant player in the energy transition process, GRTgaz is investing in innovative solutions to adapt its system and to reconcile competitiveness, security of supply and environmental protection.
GRTgaz provides the Réso’Vert tool, which aims to meet the needs of biogas producers. Réso’Vert can be accessed from the GRTgaz website and is an interactive map that shows the locations at which biogas can be injected into the GRTgaz transport network.


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