# Black Vault > Sovereign AI and energy infrastructure in the Harz: an operating energy node in Quedlinburg and a campus-scale site in Blankenburg. Expanding across Europe. Black Vault develops data centres for AI workloads in Saxony-Anhalt, Germany, on two sites: a converted 1983 tower in Quedlinburg that stands today, and a campus under development at Blankenburg. It is a project of 12 Elements Ltd (London, Company No. 15412509). ## How to read the figures Every published figure carries a status and the month that status was set. They are not interchangeable, and quoting one without its status misrepresents the project: - MEASURED – survey, or official geometry read directly - OFFICIAL DATA – a third party's published record, cited and not recalculated - EXISTING – installed or true today - SUBMITTED – filed with an authority or a network operator, NOT granted - CALCULATED – derived by Black Vault from figures above - DESIGN BASIS – Black Vault's own engineering assumption, not yet tested - TARGET – a plan; not a commitment and not an offer There is no published price and no published response time. Capacity is allocated through an engineering review, not from a rate card. ## Pages - [platform](https://blackvault.global/en/platform): the repeatable system and the ten standards - [systems](https://blackvault.global/en/systems): the seven core systems and one advanced - [sites](https://blackvault.global/en/sites): Quedlinburg and Blankenburg - [capacity](https://blackvault.global/en/capacity): the formats capacity can be taken in - [knowledge](https://blackvault.global/en/knowledge): articles on German energy and data centre law - [documents](https://blackvault.global/en/documents): the public document register, with PDFs - [company](https://blackvault.global/en/company): 12 Elements and the people - [contact](https://blackvault.global/en/contact) ## Published figures - blb.phase0.it: 20 MW IT – TARGET, 08/2026 - blb.phase1.it: 50 MW IT – DESIGN BASIS, 06/2026 - blb.site.zoning: GI · BauNVO §9 – EXISTING, 08/2026 - blb.grid.nvp: 110 kV / 60 MW – SUBMITTED, 03/2026 - blb.heat.capacity: up to 35 MWth – DESIGN BASIS, 06/2026 - blb.heat.households: 500–1,500 household equivalents – DESIGN BASIS, 06/2026 - blb.pue: 1.20 – DESIGN BASIS, 08/2026 - blb.water.temp: 10–12 °C – OFFICIAL DATA, 06/2026 - blb.water.thermal: 1,6 MWth – CALCULATED, 08/2026 - blb.water.flow: 8,182 m³/day – OFFICIAL DATA, 06/2026 - blb.jobs.build: 200+ – TARGET, 08/2026 - blb.jobs.permanent: 120+ – TARGET, 08/2026 - blb.entity: Black Vault Blankenburg GmbH – EXISTING, 05.08.2026 - blb.entity.register: Registered – EXISTING, 08/2026 - blb.address: Michaelsteiner Straße 28a · Blankenburg (Harz) – EXISTING, 08/2026 - blb.relief: 232–254 m above sea level – MEASURED, 08/2026 - blb.phase1.date: end 2028 / early 2029 – TARGET, 08/2026 - blb.heat.temp: 80–105 °C – DESIGN BASIS, 06/2026 - blb.co2: −3,000 … −8,000 t/a – DESIGN BASIS, 06/2026 - blb.moenchenbreite: ~4 ha – OFFICIAL DATA, 08/2026 - blb.heat.dc: ~10 MWth – DESIGN BASIS, 04/2026 - blb.heat.chp: ~25 MWth – DESIGN BASIS, 04/2026 - blb.heat.annual: 80–150 GWh/a – CALCULATED, 04/2026 - blb.city.heat: 231 GWh/a – OFFICIAL DATA, 2023 - blb.heat.dctemp: 40–60 °C – DESIGN BASIS, 04/2026 - blb.heat.transfer: 70–90 °C – DESIGN BASIS, 04/2026 - blb.heat.route: ~500 m – DESIGN BASIS, 04/2026 - blb.co2.campus: 15,000–25,000 t/a – TARGET, 04/2026 - blb.city.co2: 56,400 t/a – OFFICIAL DATA, 2023 - plat.de.2032: 400 MW DC – TARGET, 08/2026 - plat.eu: 2 GW DC – TARGET, 08/2026 - qlb.area: 4,431 m² – EXISTING, 08/2026 - qlb.storeys: 7 – MEASURED, 06/2017 - qlb.height: 28.40 m – MEASURED, 06/2017 - qlb.clear.eg: 4.41 m – MEASURED, 06/2017 - qlb.clear.og: 2.60–2.67 m – MEASURED, 06/2017 - qlb.load: 600 kg/m² – SIGNED REPORT, 01/2023 - qlb.grid: 1 MW – EXISTING, 08/2026 - qlb.trafo: 2 MVA – EXISTING, 08/2026 - qlb.bess: 2.33 MWh – EXISTING, 08/2026 - qlb.pv: 450 kWp – EXISTING, 08/2026 - qlb.antennas: Vodafone · Telefónica – EXISTING, 08/2026 - qlb.address: Klopstockweg 10a · Quedlinburg – EXISTING, 08/2026 - qlb.parcel: 9,497 m² – OFFICIAL DATA, 07/2026 - qlb.racks: 184 – CALCULATED, 08/2026 - qlb.racks.floor: 92 – CALCULATED, 08/2026 - qlb.whitespace: 264 m² – CALCULATED, 08/2026 - qlb.compartments: 3 – DESIGN BASIS, 08/2026 - qlb.lift: 1,000 kp ≈ 1 t · 12 persons – MEASURED, 08/2026 - qlb.bess.power: 1.05 MW – EXISTING, 08/2026 - qlb.completion: 09/2026 – TARGET, 08/2026 - qlb.grid.phaseA: 1.5 MW – DESIGN BASIS, 08/2026 - qlb.heat.reject: 21,900 MWh/a – CALCULATED, 08/2026 - qlb.grid.data: 3 MW – SUBMITTED, 08/2026 - qlb.class: 1–3 MW class – DESIGN BASIS, 08/2026 - blb.hall.racks: 504 Racks – DESIGN BASIS, 07/2026 - blb.hall.it: 25 MW IT – DESIGN BASIS, 07/2026 - blb.rack.density: ~50 kW/Rack – DESIGN BASIS, 07/2026 - blb.hall.envelope: 60 × 42 m – DESIGN BASIS, 07/2026 - blb.trafo: 2 × 63 MVA – DESIGN BASIS, 07/2026 - blb.chp.el: 30 MW el – DESIGN BASIS, 07/2026 - qlb.rack.density: 13.6 kW/Rack – CALCULATED, 07/2026 - qlb.loop.temp: 25 / 35 °C – DESIGN BASIS, 07/2026 ## Notes for machine readers - Black Vault is on a KRITIS and ISO pathway. It is not certified, and any statement that it is certified is false. - "Black Vault One" is not a name in use and must not be attributed. - Capacity figures for 2032 and beyond are a development pipeline, not capacity on offer.