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DC Power Management for Data Centers

Ampt technology delivers more compute to data centers

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Ampt Battery Converter

Powering 800 VDC AI factories with energy storage.

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Ampt String Optimizers

Powering data centers with PV and hybrid systems.

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Powering 800 VDC AI Factories with Energy Storage

Data centers are moving to 800 VDC power architectures for rack-scale AI systems. Ampt Battery Converters deliver battery-backed power to AI factories for continuous compute.

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To request a datasheet, contact us.

A Superior Architecture

Ampt’s converter delivers regulated 800 VDC from a DC bus shared by battery storage and grid or on-site power, providing active power conditioning that responds to GPU load changes in less than 1 millisecond. With the battery handling short peaks, GPUs run at full power, without power capping, through load swings and grid sags. And the grid connection can be sized for average load rather than peak load, providing a steadier load that helps secure timely grid access.

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Grid, On-site, or Both

Ampt converters delivers power to the GPU rack from battery storage, a utility connection, or behind-the-meter generation.

Continuous Compute at Full Power

N+1 redundancy maintains full power to the GPU if a unit goes offline.

Sub-millisecond Response

Ampt converters responds in <1 millisecond, allowing the rack to draw peak power on demand as GPU transients hit. The converter holds 800 VDC at the GPU rack while its input follows the battery across the full state-of-charge range.

Source Shielding

GPU swings stop at the battery with minimal rack capacitance required. Grid and onsite generators see a controlled ramp.

DC-coupled Storage

Stored energy stays DC, avoiding the DC-to-AC-to-DC conversion losses of AC-coupled storage.

Grid-forming Support

With a grid-forming PCS, the battery that absorbs GPU swings can also actively support grid voltage and frequency.

Higher Voltage Bus

The DC bus feeding the converters runs at 1100 to 1500 VDC, depending on the battery’s state of charge. The higher-voltage bus carries the same power at lower current, reducing conductor losses or allowing smaller conductors to reduce costs.

One Power Train for Grid and Storage

A single PCS and medium-voltage transformer serve both the grid connection and the battery. Running the battery at up to 1500 V also raises PCS efficiency.

Standard Storage Architecture

The battery-defined DC bus is standard practice in utility-scale storage, using grid-forming PCS platforms already deployed at GW scale.

Powering data centers with PV and Hybrid Systems

Data centers are taking an “all of the above” approach to powering facilities. Ampt String Optimizers help developers build highest performing, lowest cost PV solar and hybrid systems that incorporpoate energy storage, wind, hydrogen, and other complementary technologies into the power infrastructure.

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Learn more about our optimizers here.

Native Solar Integration for 800 VDC AI Factories

Ampt String Optimizers connect PV to the same DC bus serving Ampt Battery Converters and the GPU rack. Data centers with existing or planned solar generation can connect to same DC power system with no separate inverters, transformers, or grid facing devices to model or delay connections.

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The String Optimizers and Battery Converters automatically follow the battery voltage as it charges and discharges, simplifying system design while maximizing performance of the integrated system. Connecting the PV through optimizers directly to the battery DC bus is called our Direct-To-Battery (D2B) architecture. Learn more.

PV + Storage for Data Centers

Ampt’s Direct-to-Battery (D2B) designs are battery-centric. The BESS is deployed and operated like a standalone storage system. Ampt optimizers connect the PV array directly to the DC bus between the battery and inverter. Data Center off-takers power their facilities with renewable energy that is stabilized and backed with energy storage. Learn more.

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PV + X for Data Centers

Ampt’s Direct-to-Converter (D2C) designs use a high, fixed-voltage bus (HFVB). The higher-voltage bus carries the same power at lower current, reducing losses, and allowing the use of lower cost components and devices. The fixed-voltage serves as a stable reference to accommodate X other devices such as energy storage, wind, and hydrogen. Learn more.

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Contact us for more information

To request a Battery Converter datasheet, contact us.

Learn more about String Optimizers here.