Amperesand transforms medium voltage critical power for a new era of electricity demand
Electricity needs are outpacing legacy infrastructure capability as AI, electric mobility, and industrial growth accelerate. The grid needs an upgrade.
The Amperesand difference
Maximize infrastructure value with rapidly deployable intelligent power conversion
Simplicity drives speed
Our factory-built product consolidates multiple electrical infrastructure components, reducing complex installation labor and lead times for up to 10x faster time to power.
Dynamic grid integration
With instantaneous control and rapid on/off grid switching, our system allows large, variable loads to integrate seamlessly with energy assets. Cyber-secure connected operation ensures stability across even the most demanding grid ecosystems.
Minimize space, maximize value
We deliver category-leading power density driving a greater than 80% reduction in electrical equipment footprint compared to traditional infrastructure for medium voltage power delivery. With Amperesand, less is more.
Engineered for five nines
Our power architecture is designed from the ground up to achieve 98.5% MV-to-LV conversion efficiency and maintain 99.999% uptime, enabled by proprietary redundancy and advanced safety systems. We make sure every electron is put to work.
Introducing the world’s most advanced SST
Engineered for peak density, efficiency, safety, and reliability
Amperesand’s third-generation SST is driven by 10-years of technology development and validation, and features proprietary power electronics modules built on the latest generation of silicon carbide (SiC) technology. The system delivers unprecedented power density and MV AC to LV DC conversion efficiency greater than 98.5% through advanced controls and first principles-based power stage engineering.
Architected with modularity at its core, our system is configurable to support a range of applications including megawatt charging and 800V DC AI Factory power in global markets. Our software enables easy integration to alternative AC and DC power sources unlocking new solutions for large load management in constrained grid environments.
Designed for manufacturability, our production approach can be easily adapted for localized manufacturing. Built in the U.S., our hardware leverages supply chains optimized for tariffs and lead times. Amperesand’s SST meets stringent UL, IEC, and IEEE standards. Innovative redundancy and protection architectures ensure unmatched reliability and safety for mission-critical power applications.
Our story
Amperesand SST technology was pioneered by the Energy Research Institute at Singapore’s Nanyang Technological University (NTU) and is scaling globally with U.S. based manufacturing and engineering
Since launching in 2023, we have translated a decade of proven R&D into commercial power system deployments with hyperscalers, megawatt EV charging, and utility customers. Our first commercial units are slated for delivery in 2026.
In 2025 our growth accelerated, welcoming team members with decades of experience in energy technology development and commercialization at top companies like Tesla, Rivian, Generac, Eaton, and APC (now Schneider Electric).
Unveiled our state-of-the art design and manufacturing center in Reno, NV, while accelerating growth at our San Francisco, CA hub.
Closed an oversubscribed $80M Series A round co-led by Walden Catalyst and Temasek and grew our U.S. presence in Reno, NV and San Francisco, CA.
Launched pioneering pilot program at Singapore’s port, followed by expansion of the Singapore R&D facility.
Amperesand launched with backing from top deep tech financial and strategic investors.
Piloted our Generation I, Medium voltage AC, 500 kW and 1.5 MW, 3-phase SST.
Piloted our Generation 0, Medium voltage AC, 50 kW, 3-phase SST
Research begins at NTU leading to 18 patent families.
Our investors
