Selected by ZF for the green electricity audit?

The certificate depends on where you use the electricity, such as guarantees of origin (GoO) in Europe or GECs in China. Electricity and evidence come together through own generation, a power purchase agreement (PPA) or a green tariff; or you buy certificates separately. They must be cancelled in your name; if only the ZF share is checked, the cancellation also names ZF parts production as its purpose. ZF works with ACT Commodities on green electricity purchasing; suppliers get support there with certificates and PPAs. We do not sell certificates.

Mostly what you already have: your commitment from SupplyOn, the power bills and supply contracts of the reporting year, and the cancellation statements. Checking only the ZF share adds a separate meter's readings, or ZF and total revenue for a mass balance. You get your full list with the calculator or in the call. If something is missing, that is normal and no reason to wait.

Your company pays, not ZF. Indicative fee, reporting year 2026: about €3,000 to €6,500 per legal entity plus VAT, depending on scope and audit approach. We bill by audit days, at one day rate for every ZF supplier; this is not a fixed price. Certificates you still need to buy come on top. You get your cost indication in the call; your purchasing team then receives, on request, a written offer with scope, standard and fee.

Once ZF has selected you, the audit report and the signed ZF declaration are due in SupplyOn by 31 May of the following year, so by 31 May 2027 for reporting year 2026. In Germany, energy suppliers usually issue cancellation statements between January and March. We recommend clarifying the engagement right after the selection.

Yes, if you can prove it. You prove own generation with meter readings and a green tariff with your energy supplier's cancellation statement. If certificates were issued for your plant and sold, that electricity no longer counts for you. How own generation counts when only the ZF share is checked, we clarify in the call.

If only the ZF share is checked and ZF production has no dedicated meter, the share is calculated: ZF revenue divided by the site's total revenue, times total consumption. Of that, you prove the share you committed. The weight of goods delivered can be used instead of revenue. With the calculator you estimate your share yourself beforehand.

It shows that green electricity was supplied or cancelled. An independent auditor checks that the cancelled certificates cover your consumption or the ZF share and are claimed by nobody else. That matters because your green electricity feeds into the carbon footprint of ZF parts and ZF's Scope 3 emissions.

Not from us. You are our client, not ZF, and we pass neither revenue nor electricity data on to ZF. ZF sees what you upload to SupplyOn yourself: the audit report and the ZF declaration. You see both before you upload them. We reach our conclusion independently. Confidentiality is a professional duty (section 43 WPO, section 203 StGB).

Whether the audit can be postponed is ZF's decision, not ours. Without a timely upload you count as non-compliant with ZF. If time gets short, contact ZF early at sustainability.supplychain@zf.com. In the call we work out what is feasible by the deadline.

Yes. You decide whom you appoint. The audit can be done by an independent public accountant or a registered audit firm. You can still put your questions to us.