Swiss Biomethane — Pronovo, Naturemade Star & AIB Hub Imports
Switzerland runs one of Europe's strictest biomethane regimes: waste and residue feedstocks only, energy crops excluded by law, and a premium ecological label that has been operating since 1999. Pronovo (since 1 January 2025) and Naturemade Star are the two pillars. BioGem Express, headquartered in Zürich since 2020 and a member of VUE, structures the certified supply behind both.
Why Switzerland is Europe's strictest biomethane market
The Swiss biomethane market sits between two distinctive features. First, it is overwhelmingly an import market: domestic production is limited and Switzerland is one of Europe's largest single buyers of cross-border biomethane volumes. Second, it operates under stricter feedstock rules than any other major European market: only waste and residue-based volumes qualify, and energy crops are explicitly excluded by both federal customs rules and the Naturemade Star certification framework.
The federal regulatory backbone is Pronovo SA, a wholly owned subsidiary of Swissgrid, accredited by the Swiss Federal Office of Energy (OFEN) to administer Guarantees of Origin and federal renewable energy support programmes. Pronovo's mandate dates from the revised energy law adopted in May 2017 and in force since 1 January 2018. From 1 January 2025, Pronovo runs the new CC (Carburants et Combustibles Renouvelables) system, covering Guarantees of Origin for biomethane, liquid biofuels, hydrogen, and SAF. Swiss biomethane GoOs are valid for 18 months from the month of issuance.
On top of the Pronovo registry sits Naturemade Star, the premium ecological label operated by the Verein für umweltgerechte Energie (VUE) — founded in 1999 and a partner of SwissEnergy. Naturemade Star certifies plants and products separately, ensuring that only as much certified biogas is sold as has been produced. Its rules are explicit: methane leakage capped at 1%, no GMOs, ISO 14001 or EMAS for plants over 30 employees within 5 years, and a strict waste-only feedstock policy aligned with the federal Swiss Customs Directorate (OZD/BAZG) positive list.
The Swiss Customs Directorate (OZD/BAZG) maintains a positive list defining which biogenic substrates can be imported and certified. Category A substances are admitted by default. Categories B and C require specific evidence. Only the net energy volume corresponding to the biogenic waste portion of the plant's output is eligible for Naturemade Star certification. Permitted substrates: organic waste, green waste, manure, sewage sludge. Energy crops (NawaRo) are excluded — a structural difference with the German market where energy crops historically dominated production.
AIB hub — eligible source countries for gas (Pronovo, June 2025)
| Country | Issuing body / registry operator |
|---|---|
| Austria | E-Control |
| Belgium | Brugel |
| Czech Republic | OTE |
| Finland | Gasgrid Finland |
| Italy | GSE |
| Latvia | Conexus Baltic Grid |
| Netherlands | Verticer |
| Portugal | REN |
| Spain | Enagas GTS |
Source: Pronovo membership of the AIB Gas Scheme Group (GSG) since June 2025; ERGaR hub provides an alternative cross-border path.
How certified biomethane reaches the Swiss market
Three steps connect a European producer's certified output to a Swiss buyer's compliance or premium claim.
Sourced from a certified EU producer
The biomethane is produced under a recognised RED voluntary scheme — typically ISCC EU or REDcert EU — with feedstock that matches the Swiss OZD positive list (waste, residue, manure, sewage sludge). Energy crops are excluded from the start. Only producers meeting both RED sustainability and Swiss feedstock rules qualify for the Swiss market.
Imported via AIB hub or ERGaR
The biomethane is physically injected into the European gas grid — the connection requirement that makes Swiss certification possible. The Guarantee of Origin or Proof of Sustainability is transferred via the AIB hub (from one of nine eligible EU source countries) or ERGaR, both operated through Pronovo since the company joined the AIB Gas Scheme Group in June 2025. RED II sustainability criteria apply.
Cancelled by the Swiss buyer
The buyer cancels the GoO in the Pronovo registry, specifying the consumer group (industry, services, transport, district heating, agriculture, households, electricity). Where premium ecological credentials are required — for example, district heating or municipal contracts — Naturemade Star certification adds a second verification layer with stricter ecological criteria, including the 1% methane leakage cap and ISO 14001 / EMAS environmental management.
What makes Swiss biomethane supply credible to a Swiss buyer
Swiss buyers — utilities, district heating operators, industrial gas users, mobility — increasingly demand more than RED certification. They demand documentation that holds up to a Swiss audit.
Pronovo registry & CC system
Pronovo is the federal accredited certification body. Since 1 January 2025, the CC system covers biomethane, liquid biofuels, hydrogen, and SAF GoOs. Validity is 18 months. Cancellation is by consumer group, not individual end-customer. Pronovo is a wholly owned subsidiary of Swissgrid, supervised by OFEN, employing approximately 80 staff in Frick, Aargau.
Naturemade Star ecological criteria
Operated by the VUE since 1999, Naturemade Star certifies a small ecological footprint from substrate delivery through grid injection. Criteria: methane leakage ≤ 1%, no GMOs, ISO 14001 or EMAS environmental management for plants over 30 employees within 5 years, compliance with Swiss Clean Air and Noise Control Ordinances. Plants and products are certified separately to prevent over-claiming.
OZD positive list — feedstock rules
The Swiss Customs Directorate (OZD/BAZG) maintains the positive list defining eligible substrates. Category A admitted by default; categories B and C require specific evidence. Energy crops (NawaRo) are excluded outright. Permitted: organic waste, green waste, manure, sewage sludge. The rule "must not compete with food and feed production" is explicit in the certification framework.
AIB hub & cross-border imports
Pronovo joined the AIB Gas Scheme Group (GSG) in June 2025. Imports are now operational from nine EU source countries via the AIB hub, with ERGaR as an alternative path. The biomethane must be physically injected into the European gas grid to ensure connection to Switzerland, and imports must comply with RED II sustainability criteria. The legal basis is the OGOCC ordinance (DETEC).
Switzerland is our home market
BioGem Express AG was founded in 2020, a Swiss AG headquartered at Zähringerstrasse 26 in Zürich, with a second Swiss office in Lausanne and a Benelux office in Haarlem. We celebrated five years in Zürich in September 2025. As a member of VUE — the body behind the Naturemade Star label — and ISCC-certified, we operate at the centre of the Swiss biomethane market: connecting European producers to Swiss buyers under the rules that actually apply here.
Switzerland's strictness creates a market premium for the producers who can deliver to it. Our role: source waste and residue-based volumes from European producers (ISCC EU or REDcert EU), structure the AIB hub or ERGaR import path, coordinate Pronovo registry transfers and cancellations, and where ecological credentials are required, structure supply that qualifies under Naturemade Star. Both compliance-grade and premium-grade biomethane, with documentation that holds up to a Swiss audit.
"Switzerland sets the bar high — no energy crops, ecological footprint scrutiny, methane leakage caps. That's why our home market is also where we structure the cleanest supply chains. The buyers here expect proof, not promises."
Vincent Crausaz, Business Developer, BioGem Express- Sourcing of waste and residue-based biomethane from European producers certified ISCC EU or REDcert EU, aligned with the Swiss OZD positive list
- Pronovo registry coordination — issuance, transfer, cancellation by consumer group under the CC system in force since 1 January 2025
- AIB hub and ERGaR import structuring across the nine eligible EU source countries for gas
- Naturemade Star supply structuring for buyers requiring premium ecological credentials (district heating, municipal, ESG-driven)
- Parallel EU regulatory compliance pathways structured under Guarantees of Origin or Proof of Sustainability with mass-balance documentation
- Long-term supply via multi-year offtake agreements for Swiss utilities, industrials, and mobility operators
- VUE membership and ISCC certification — verifiable credentials, not declarative claims
Key questions on Swiss biomethane
Switzerland operates one of Europe's strictest biomethane regimes. Only waste and residue feedstocks qualify — energy crops are explicitly excluded under both the federal Swiss Customs Directorate (OZD/BAZG) positive list and the Naturemade Star certification rules. The market is overwhelmingly an import market: domestic production is limited and Switzerland is one of Europe's largest single buyers of cross-border biomethane volumes. The regulatory backbone is Pronovo, the federal accredited certification body, which since 1 January 2025 administers the CC (Carburants et Combustibles Renouvelables) system for biomethane Guarantees of Origin. Naturemade Star, run by the VUE since 1999, sits on top as the premium ecological label.
Naturemade Star is Switzerland's premium ecological certification label for renewable energy, operated by the Verein für umweltgerechte Energie (VUE), founded 1999 and a partner of SwissEnergy. For biogas, it certifies plants and products separately, ensuring that only as much certified biogas is sold as has been produced. Its core criteria are strict: no energy crops permitted, methane leakage capped at 1% of methane content, GMOs prohibited, and ISO 14001 or EMAS environmental management required for plants over 30 employees within five years. For Swiss buyers, Naturemade Star is the most credible signal that biomethane was produced with a particularly small ecological footprint.
Pronovo SA is Switzerland's federal accredited certification body for Guarantees of Origin and renewable energy support programmes. A wholly owned subsidiary of Swissgrid based in Frick, Aargau, Pronovo is supervised by the Swiss Federal Office of Energy (OFEN). Its mandate dates from the 2017 revised energy law, in force since 1 January 2018. From 1 January 2025, Pronovo administers the CC system covering biomethane, liquid biofuels, hydrogen, and SAF Guarantees of Origin. Swiss biomethane GoOs are valid for 18 months from the month of issuance and can be transferred multiple times before cancellation.
Pronovo joined the Gas Scheme Group (GSG) of the Association of Issuing Bodies (AIB) in June 2025, enabling Switzerland to import biomethane GoOs from nine European source countries via the AIB hub: Austria (E-Control), Belgium (Brugel), Czech Republic (OTE), Finland (Gasgrid Finland), Italy (GSE), Latvia (Conexus Baltic Grid), Netherlands (Verticer), Portugal (REN), and Spain (Enagas GTS). For all imports, the biomethane must be physically injected into the European gas grid to ensure a connection to Switzerland, and the import must comply with RED II sustainability criteria. The ERGaR hub provides an alternative pathway for cross-border transfers.
Energy crops are explicitly excluded. Under both the OZD/BAZG positive list and the Naturemade Star criteria, only biogenic residue and waste qualify — defined as material that does not compete with food and feed production. Permitted substrates include organic waste, green waste, manure, and sewage sludge. Substances in OZD positive list category A are admitted by default; categories B and C require specific evidence. Only the net energy volume corresponding to the biogenic waste portion of the plant's total energy consumption is eligible for certification. This makes the Swiss market structurally different from Germany, where energy crops historically dominated.
BioGem Express is a Swiss-based biomethane trading company headquartered in Zürich and operating since 2020, with a second office in Lausanne and a Benelux office in Haarlem. As a member of the VUE — the body behind the Naturemade label — and ISCC-certified, we source waste and residue-based biomethane from European producers, structure the AIB hub or ERGaR import path, and deliver volumes that meet both Swiss feedstock rules and the buyer's compliance pathway. For buyers seeking premium ecological credentials, we structure supply to qualify under Naturemade Star. For voluntary disclosure, we coordinate Pronovo registry transfers and cancellations directly.
Sources used on this page
This page draws on Pronovo's official documentation of the CC system and AIB hub mechanics, Naturemade's biogas certification rules, and the federal Swiss energy regulatory framework operationalised since 2018.
Key data used here: Pronovo CC system launched 1 January 2025, 18-month GoO validity, and nine EU source countries via the AIB hub since June 2025 from pronovo.ch; Naturemade Star criteria including methane leakage ≤ 1%, energy crop exclusion, ISO 14001/EMAS for plants over 30 employees from naturemade.ch; VUE founded 1999 as the operating body of Naturemade; OZD positive list categories A/B/C defining substrate eligibility; and the Pronovo legal basis in the 2017 revised energy law in force from 1 January 2018, with the OGOCC and OMCC ordinances forming the CC system framework.
- Federal registry Pronovo SA — CC System & AIB Hub Imports
- Premium label Naturemade Star — Biogas Certification
- VUE Verein für umweltgerechte Energie (VUE)
- Federal mandate Pronovo — Company & Legal Mandate
- EU certification ISCC EU — Voluntary Scheme
- Cross-border Association of Issuing Bodies (AIB)
Ready to source certified biomethane for the Swiss market?
Our team structures Swiss-compliant biomethane supply across Pronovo, Naturemade Star, and the AIB hub — from waste and residue-based feedstocks through European grid injection to registry cancellation by consumer group. Whether you need standard Swiss CC GoO coverage or premium Naturemade Star credentials, we deliver volumes with documentation that holds up to a Swiss audit.