Is biogas enough to ensure energy independence?

Not on its own. It is one of the domestic resources alongside efficiency, other renewable sources, networks and storage. Its importance grows where the feedstock is local and the product has a steady buyer.

Sources: Dyrektywa 2008/98/WE w sprawie odpadów — EUR-Lex; IEA — Outlook for Biogas and Biomethane; EBA — European Biogas Association

Discussed in the article: A world no worse than we found it: the closed loop and intergenerational responsibility

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What does a closed loop mean at a biogas plant?

That organic waste returns to use: the carbon contained in the waste passes into biogas (mainly as methane and CO₂), and the fertilising components return to the field in the digestate. The loop is never fully closed, because some components and energy are lost, but the aim is to make the best possible use of them.

Sources: Dyrektywa 2008/98/WE w sprawie odpadów — EUR-Lex; IEA — Outlook for Biogas and Biomethane; EBA — European Biogas Association

Discussed in the article: A world no worse than we found it: the closed loop and intergenerational responsibility

Link to this answer

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