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Temasek joins $80m series A in SG startup Amperesand
Amperesand, a US- and Singapore-based power infrastructure startup, has raised US$80 million in a series A round co-led by Walden Catalyst Ventures and Temasek.
New investors include Industry Ventures, Acclimate Ventures, and SG Growth Capital, with existing backers Xora Innovation, Material Impact, TDK Ventures, and Foothill Ventures also joining.
The funding will support the deployment of 30MW of its Medium Voltage Solid-State Transformer (MV SST) systems in 2026, aimed at AI data centers and critical power customers.
Amperesand plans to expand engineering and manufacturing operations in the US and Singapore.
The company was spun out from Nanyang Technological University in 2023 and focuses on power infrastructure for high-density computing and megawatt charging.
First commercial units are expected in early 2026, including a project at the Port of Singapore with PSA International.
Amperesand expects to have over 100 employees globally by the end of 2025.
🔗 Source: Amperesand
🧠 Food for thought
Implications, context, and why it matters.
Amperesand cites standards compliance; independent certifications and pilot data remain limited ahead of 2026 ramp
- Amperesand says its Medium Voltage Solid-State Transformer (MV SST) meets UL (a U.S. product safety certifier), IEC (International Electrotechnical Commission), and IEEE (Institute of Electrical and Electronics Engineers) standards 1. The Series A announcement gives no specific certifications or listings such as UL file numbers 2.
- The company finished full-power, overload, and bidirectional testing of its Generation 2 system in 2024 2. It has shared no independent field data to back the 99.999% uptime claim 1.
- The PSA Singapore pilot starts in mid-2025 with a one-year Proof of Value phase 3. Results land in 2026, while the funding release lists no signed purchase orders, letters of intent, or type-test results from labs such as KEMA or DEKRA 2.
Port electrification contractors can target active grants before Amperesand scales
- EPA’s (U.S. Environmental Protection Agency) Clean Ports Program awarded nearly $3 billion across 54 grants for zero-emission equipment and infrastructure at U.S. ports, with projects running over the next three to four years 4. This creates immediate openings for electrical contractors and systems integrators.
- Washington’s $26.5 million Port Electrification Grant funded 11 projects in August 2024 5, while Maine issued a request for proposals (RFP) for port electrification planning in June 2025 6. Vendors of medium-voltage power electronics can bid into these cycles.
- Shore power plus megawatt charging projects funded in 2025 will need engineering, procurement, and construction (EPC) support 2. That work comes before Amperesand’s first commercial units and its 30 MW deployments in 2026, which favors established suppliers of transformers, switchgear, or power distribution gear.
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