ZF Green Electricity VerificationGreen Energy Verification for ZF Suppliers
Independent ISAE 3000 or ISRS 4400 verification of your green electricity certificates (GOs, I-RECs, GECs). Licensed German auditor, listed by ZF, co-author of the ZF verification guideline. Since 2025 working with ZF suppliers in Germany, Türkiye, and China. Remote, efficient — typically valid ~4–5 years.
Free 30-minute consultation. Fixed-price quote. No obligations.
Deep ZF expertise, not a generic supply chain audit
Led by Jannik Hassel — German Chartered Accountant, co-author of the ZF verification guideline, Big-4 assurance background, Mandarin speaker. You don't explain ZF's requirements to us — we helped write them. Templates, checklists, and engagement design are ready. Deep knowledge of I-REC, GEC, HKN markets. No onboarding on your side — we start from day one.
No conflicts of interest
Every engagement letter includes an explicit independence statement under § 49 WPO. We don't provide bookkeeping, tax advice, or valuation services to audit clients — so your report carries the weight of a truly independent examination.
Professional secrecy (§ 43 WPO, § 203 StGB) — all client data strictly confidential. No client names, volumes, or findings disclosed without explicit written consent. NDA available on request.
Your ZF Green Electricity Commitment
As a ZF supplier you committed to source 100% green electricity for ZF-related production. An independent auditor has to confirm this — covering your actual electricity mix, the certificates (GOs, I-RECs, GECs) you hold, and how they are allocated to ZF's share of your production.
Your electricity mix
Meter readings, purchase contracts, on-site generation (PV, wind).
Your certificates
Guarantees of Origin (EU), I-RECs / GECs (China, India, Türkiye).
The allocation to ZF
Mass balance or dedicated meter — matching your setup to the right standard.
Two questions — and you'll know the right approach
Answer two quick questions. We'll derive the fitting verification standard (ISRS 4400 or ISAE 3000) and prefill the booking — so the call is already focused on your case.
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Schedule a Meeting
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Available time zones: CET, CST (China), and others by arrangement
Frequently Asked Questions
The most common questions from ZF suppliers. Based on dozens of orientation calls with suppliers in Europe, China, India, and Türkiye.
Received an OEM request — or want to set up your own supplier audit programme? Same situation, same underlying logic. One engagement can cover multiple customers, or we can design and run your supplier programme end-to-end. OEM supplier audits in detail
Ready to Get Verified?
Book a free 30-minute consultation. We assess your supply chain sustainability audit needs, explain the process, and provide a fixed-price quote — no obligations. Our engagement letter includes an explicit independence statement under § 49 WPO.
Ideal start: Q4. January/February still fine. March deadline is tight.