# SAVRN Atom: the 13.2 MW AI factory, drawn module by module Source: https://savrn.com/atom Markdown alternate of the page above; the site index is https://savrn.com/llms.txt --- ## The Atom, drawn module by module Choose a view, then select a module in the legend or in the drawing itself to zoom to it and read its specifications. The Power path view walks eight steps from power generation to the rack, and the Plan view shows one Atom or four. On a phone, pinch or use the buttons to look closer and drag or slide to move. SAVRN ATOM / NORTH ELEVATION ### Five modules, one Atom Pinch or use + to look closer Optional modules Traced from IntelliFlex drawings G-201 plan, G-202 and G-203 elevations (Rev A) and the four-Atom general arrangement (Rev A). The power yard is drawn in power path order (generation, switchgear, MV-BESS) with enclosure lengths from the yard arrangement and heights to typical proportions; power generation is shown generically; power and cooling routes are diagrammatic. Not to scale. Select a module to see it in the drawing and read its specifications. ## Module specifications The published figures for the five standard modules and the two optional modules, as the drawings show them. Each project confirms its power budget and operating conditions in its design basis. 01Standard module ### Compute Two IT halls, four IT modules 8.8 MWIT load of a 13.2 MW Atom Two IT halls, each built from two factory-made IT modules, hold 80 rack positions in four rows of 20. Each hall draws from its own six busways and its own chiller plant, so the halls run as two independent halves of the Atom. Racks are direct-to-chip liquid-cooled, and CRAH units along the rows take the heat that does not leave in the liquid and condition the hall air. Atom capacity 13.2 MW IT load Up to 8.8 MW Racks 80, in four rows of 20 Rack space Up to 4,160 U - Direct-to-chip liquid cooling See it in the drawing 02Standard module ### Cooling Two chiller plants, twelve chiller trains 8.8 MWcooling capacity per Atom Four chiller buildings, two at each end of the Atom, form two chiller plants, one per IT hall. Each plant runs six chiller trains, each a roof-mounted dry cooler, a chiller and a facility pump assembly, and five of the six carry the load. Chilled water leaves each plant on 2N supply headers to one cooling system in each IT hall: distributed pumping assemblies feeding direct-to-chip liquid cooling at the racks, and CRAH rows that take the heat that does not leave in the liquid and condition the hall air. Cooling capacity Up to 8.8 MW Ambient rating Up to 113°F Chillers 12 per Atom: two plants of six, five of six per plant (N+1) - Economizer - Heat recovery - Automated controls See it in the drawing 03Standard module ### Megabox Six unit substations 18 MWsix 3 MW units, 12.47 kV to 415 V Six unit substations beside the IT halls, one Megabox on each of the six 3 MW feeders. Each takes 12.47 kV from its MV BESS+ unit, steps it down to 415 V through a dry-type cast resin transformer, and feeds two 2,100 A overhead busways, one to each IT hall and its chiller plant. Atom capacity 13.2 MW Megabox capacity 18 MW Units 6 × 3 MW Transformation 12.47 kV to 415 V - Power monitoring - Shunt trip - Dry-type cast resin split core - Secondary protection See it in the drawing 04Standard module ### Switchgear Medium-voltage distribution Up to 38 kVmain incoming and six 3 MW feeders A standalone building in the power yard with the main incoming section and six 3 MW feeder sections, one for each Megabox. It accepts up to three power sources, with an optional transfer switch and optional SCADA. The number of incoming feeds and the switchgear design are set for each site. Atom capacity 13.2 MW Switchgear capacity 18 MW Voltage class Up to 38 kV - Up to 3 power sources - Optional transfer switch - Optional SCADA See it in the drawing 05Standard module ### Control room Operations and controls 720 sq ftoperations module The operations module for the Atom: operator stations, central servers and network racks, with workspace and restroom or change facilities. The building management system here supervises both halves of the Atom, each run by its own redundant controller pair. Footprint 720 sq ft - Operator control station - Central servers and network racks - Configurable workspace - Restroom and change room See it in the drawing 06Optional module ### MV BESS+ Medium-voltage battery UPS 6 × 3 MWfive carry the load, one redundant Medium-voltage battery energy storage. In the reference design, which follows Uptime Institute Tier III topology criteria, each of the six Megaboxes has a 3 MW MV BESS+ unit ahead of it. Five carry the 13.2 MW Atom and the sixth is redundant (N+1). Each unit conditions voltage against sags, swells and transients as well as riding through outages. Atom capacity 13.2 MW Topology Follows Uptime Institute Tier III topology criteria Configuration 6 × 3 MW; five carry the load, one redundant (N+1) Runtime Sized to the project's continuity requirement - Lithium-ion batteries - Up to 99% efficiency - Under 3% harmonic distortion See it in the drawing 07Optional module ### Standby generation Extended backup power 18 MWsix 3 MW units at 415 V Diesel generation for extended outages, sized to carry the 13.2 MW Atom: six 3 MW units at 415 V in Level 3 sound enclosures, with UL142 dual-wall fuel tanks and 24 hour run time. Fuel strategy is set with the local authority during site planning. Atom capacity 13.2 MW Generation capacity 18 MW Units 6 × 3 MW Voltage 415 V - Diesel - Level 3 sound enclosure, 84 dBA - 24 h run time - UL142 dual-wall fuel tank ## Where the Atom fits - [All solutions](https://savrn.com/solutions) - Every piece of a SAVRN AI factory, from power to the training institute. - [The SAVRN system](https://savrn.com/system) - How Atoms, power, cooling and the operating layer make one campus. - [Water-free cooling](https://savrn.com/solutions/water-free-cooling) - The sealed liquid loop the Atom runs on, and why it draws no community water. - [Fuel-cell power](https://savrn.com/solutions/fuel-cell-power) - On-site generation for the power yard the drawings show. Discuss an Atom for your site: how many, the power yard and the delivery schedule. [Engage SAVRN](https://savrn.com/engage)