Question 5279 — waste

Summary

Ms. Brigitte Barèges draws the attention of the Minister to the Minister of the Economy, Finance and Industrial and Digital Sovereignty, responsible for industry and energy, to methanization. Indeed, often presented as an ecological solution for waste management and the production of renewable energy, methanization raises many questions about its real efficiency and its environmental impacts. Daniel Chateigner, professor of physics and coordinator of the national scientific collective sustainable methanization (CSNM), highlights significant risks associated with this model, which seems to generate more dangers than benefits. In France, this process produces 90% of digestate considered waste and generates emissions of methane, a gas with a global warming potential 25 times greater than that of CO2. Furthermore, the weak energy efficiency of methanization installations calls into question the usefulness of the public subsidies granted, which amount to around 640,000 euros per methanizer, as well as a total cost of gas buyback of up to 10 billion euros each year. These figures raise questions about the real profitability of these projects. It is also worrying that in order to reach a target of 10,000 methanizers by 2050, a density of one methanizer every four kilometers would be necessary, while implying increased exploitation of agricultural resources. This could have potentially devastating effects on soil and water tables. In this context, she would like to know her position on the methanization model currently promoted in France. She would like to know what measures the Government plans to ensure that the development of methanization is reasoned, economically viable and beneficial for the environment, while preserving the quality of natural resources and improving the lives of farmers.

Machine translation from French. The official text remains authoritative.

Timeline

No timeline events have been ingested for this record yet.

Votes

No vote records are attached yet.

Versions

No version snapshots stored. Document URLs remain at the source.

Documents

No documents linked.

Sponsors

No sponsors or actors listed by the source.

Related records

No cross-record relationships stored yet.