Sample dossier: FRA03, Frankfurt
What a €490 project dossier contains, shown in full for one real project. Every fact below comes from the permit of 10 September 2025 and carries its page in the PDF.
The project in short
- Project
- FRA03 data centre, Otto-Horn-Straße, south of Industriepark Höchst, Frankfurt am Main.
- Applicant named in the permit
- Esfandyar Ventures One SARL.
- Authority
- Regierungspräsidium Darmstadt.
- Decision
- Emissions permit under the Federal Immission Control Act (BImSchG), 10 September 2025, 60 pages.
What the permit says, page by page
| Fact | Value in the permit | Page |
|---|---|---|
| Generator sets | 60 diesel generator sets: 59 for the data halls, 1 for life safety | 2 |
| Thermal input | 392 MW in total, at most | 2 |
| Engine make | Still open: MTU 20V4000 G74F, CAT 175-16, CAT 3516E or Kohler KD3100 | 2 |
| Life-safety engine | MTU 18V2000 G26F or CAT 3412C-C18 | 2 |
| Exhaust treatment | Selective catalytic reduction (SCR) on every engine | 2 |
| Urea storage | 2 tanks of 40 m³, plus a 1.5 m³ day tank on each engine | 2 |
| Fuel storage | 20 underground tanks of 100 m³ (2,000 m³), plus a 0.8 m³ day tank on each engine | 2 |
| Named tank equipment | Eurovac NV leak detectors and Vegaswing 51 level switches, or equivalent | 3 |
| Stacks | 16 collective stacks, 42 m above ground | 2, 14 |
| Running hours | At most 300 hours a year | 12 |
| Emission limits | NOx 0.5 g/m³ for the main engines; CO from 170 to 500 mg/m³ depending on the make | 15 |
| Emission measurements | At every stack, by a body notified under § 29b BImSchG | 14, 16, 17 |
| Air and noise studies | TÜV Rheinland: air quality forecast of 12 June 2024, noise forecast of 24 August 2023 | 11, 19 |
| Permit clock | The permit lapses if construction has not started within two years after it became final | 6 |
What it means for a supplier
- Engine makers
- Four makes are still allowed for 59 engines: the order is still to be won.
- Fuel and urea suppliers
- A first fill of up to 2,000 m³ of diesel and 80 m³ of urea in storage.
- Investors and builders
- The two-year clock tells you when the project must show a construction site.
Ownership and level of evidence
- Named in the permit
- Esfandyar Ventures One SARL, as applicant: the permit is addressed to it.
- Linked to CloudHQ
- Market listings place CloudHQ's FRA03 at the same street (datacenterHawk). Level of evidence: indirect, the same site name and street; the company-register link is checked for each order.
The source document
Permit of 10 September 2025, still online at the authority on 10 November 2026; a copy is kept in our archive with its SHA-256 fingerprint.
Order a dossier for another project
Any project in the atlas, documented the same way: dated filings, the fleet down to the engine model when the filing gives it, ownership with its level of evidence, every fact cited to its page. €490 per project, €2,900 for ten.
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