The increasing complexity of the modern electrical grid, driven by the integration of distributed energy resources (DERs), the proliferation of data centers, and the imperative of enhanced resilience, necessitates a fundamental evolution in power management components. The traditional transformer, a passive element in grid architecture for over a century, is being developed and enhanced into advanced, intelligent systems.
There are many companies developing smart and solid-state transformers with a particular spike in funding this year.
A smart transformer is a power transformer equipped with advanced monitoring, control, and communication capabilities, enabling it to interact with grid management systems in real time. It still relies on conventional electromagnetic transformer technology (copper windings, iron core), but adds intelligence through sensors and digital control.
A solid-state transformer goes further and replaces the conventional iron-core design with power electronics to convert and control electricity. Instead of solely relying on magnetic coupling, SSTs use components such as IGBTs, SiC MOSFETs, and converters.
Amperesand, Heron Power, Ionate and DG Matrix all raised rounds this year. This was instigated by growing power demands from various industries necessitating solutions that can perform multiple functions.
- Amperesand, a provider of a novel solid-state transformer, raised $80M in their Series A round
- Heron Power, a developer of purpose-built power electronics including a solid-state transformer solution, closed their Series A round with $38M
- Ionate, who manufactures power transformers leveraging high-precision magnetic power flow controllers, enhanced by an AI control module, raised $17M in a Series A round
- DG Matrix, a producer of versatile, modular, and reliable power conversion technology, announced a Seed round closing with $20M
The Imperative for Smart Grid Components
Contemporary energy systems are characterized by dynamic load fluctuations and require bi-directional power flow, particularly in environments rich in intermittent renewable generation and EV charging. Addressing these challenges requires precise, real-time control over power quality and flow, a capability largely absent in conventional transformers. The solutions provided by Ionate and DG Matrix offer avenues for optimization and resilience, each leveraging a specialized technological core to penetrate high-demand markets such as critical infrastructure and high-efficiency commercial operations.
Ionate: The Hybrid Intelligent Transformer (HIT) and Dynamic Magnetic Control (DMC)
Ionate’s innovation focuses on augmenting the performance of conventional transformer architecture. Their Hybrid Intelligent Transformer (HIT) integrates patented Dynamic Magnetic Control (DMC), utilizing low-power electronics to manipulate the magnetic flux within the traditional transformer core.
The HIT system integrates functions that would otherwise require separate, supplementary equipment—such as voltage regulators and harmonic filters—thereby simplifying the overall power infrastructure and reducing associated capital and maintenance expenditures.
From a commercial standpoint, Ionate’s strategy is rooted in pragmatic adoption. By retaining a form factor similar to conventional units, the HIT is positioned as a “drop-in” solution, facilitating rapid deployment and ensuring immediate compliance with established grid codes and regulatory frameworks. Strategic partnerships with major utilities (e.g., EDP) and engineering firms (e.g., JGC) underpin their scalable market entry.
DG Matrix: The Solid-State Power Router and Multi-Port Integration
In contrast, DG Matrix pioneers the application of the Solid-State Transformer (SST) concept, marketing its device as a Solid-State Power Router (SSPR). This technology represents a significant architectural shift, utilizing advanced power semiconductors—specifically Silicon Carbide (SiC)— in a highly integrated, compact, and multi-functional power management unit.
The SSPR’s core innovation is its multi-port power capability, which allows it to simultaneously interface with diverse AC and DC power assets. This consolidation effectively replaces a large suite of traditional power electronics, potentially eliminating 10 to 15 discrete components, thereby simplifying complex system topologies.
Furthermore, the system incorporates an AI-driven software layer that standardizes the underlying hardware while allowing application-specific programming (e.g., microgrid operation, building energy management). While current manufacturing costs, driven by the use of advanced SiC materials, render the initial acquisition cost more expensive than conventional power units, the operational efficiency and component consolidation lead to substantial long-term savings in maintenance and energy consumption.
Looking Ahead
Together, these innovations point to a broader redefinition of the transformer’s role within the grid. Instead of acting solely as a passive voltage regulator, next-generation units can behave as active grid assets capable of shaping power flows, improving reliability, and unlocking new economic value for operators. As interoperability improves and component prices decline, these technologies will likely become foundational to modern distribution networks.
Not all the companies innovating on advanced transformers are targeting the same industries, markets, regions or using the same core innovation. While solid-state technology and cores are still being developed for various solutions, DG Matrix’s announcement of commercial-scale deployments are showing how these systems can rapidly be scaled.
