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Heron Power

Develops solid-state transformers for grid modernization

Overview

Heron Power designs power-electronics-based solutions to modernize the electrical grid, emphasizing solid-state transformer technology. Its flagship Heron Link is a modular, megawatt-scale converter that connects directly to medium voltage and uses wide-bandgap semiconductors to regulate voltage and frequency while coordinating multiple energy sources through software. Compared with traditional transformers and early SS-T solutions, it offers higher power density, easier maintenance, and tighter grid stability through software-enabled control. Its goal is to enable a scalable, reliable, all-electric grid for renewables, storage, and data centers, with internal pilots in 2026 and U.S. manufacturing planned.

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About Heron Power

Simplify's Rating
Why Heron Power is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

HardwareIndustrial & ManufacturingEnergyEnterprise Software

Company Size

51-200

Company Stage

Debt Financing

Total Funding

$238M

Headquarters

Scotts Valley, CA

Founded

2024

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What believers are saying

  • RWE signed Heron's first utility-scale pilot on September 21, 2026.
  • Heron closed $140 million Series B in February 2026, then added $60 million debt.
  • Morgan Hill factory and LG collaboration position Heron for data-center and storage demand.

What critics are saying

  • Heron still lacks revenue; the first RWE pilot installs in April 2027.
  • Enphase shipped IQ SST modules in Texas; customer pilots start in 2027.
  • Late-2027 manufacturing misses or SST failures could kill Heron's 40GW factory thesis.

What makes Heron Power unique

  • Drew Baglino left Tesla in 2024, bringing powertrain-scale execution to Heron Power.
  • Heron Link replaces inverters and transformers with one 5MW solid-state medium-voltage platform.
  • Heron targets U.S.-made grid hardware, giving utilities domestic content for 2027 procurement.

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Funding

Total Funding

$238M

Above

Industry Average

Funded Over

3 Rounds

Notable Investors:
Debt funding comparison data is currently unavailable. We're working to provide this information soon!
Debt Funding Comparison Coming Soon

Benefits

  • Company Equity

Growth & Insights and Company News

6 month growth

1%

1 year growth

0%

2 year growth

17%
Data Center Dynamics
Oct 28th, 2026
Enphase and Infineon deploy 900V GaN switches in solid-state transformers designed for AI data centers.

Enphase and Infineon deploy 900V GaN switches in solid-state transformers designed for AI data centers. Claim the deployment is a "world's first" October 28, 2026 Electrical equipment manufacturer Enphase Energy has partnered with German semiconductor firm Infineon Technologies to deploy what it calls "the world's first" 900 Volt gallium nitride (GaN) monolithic bidirectional switch (BDS) devices within Enphase's solid-state transformer power modules. The partners claim the deployment will play a crucial role in scaling Enphase's IQ Solid-State Transformer (IQ SST), designed for the AI data center sector. According to Enphase, the BDS devices will allow Enphase to continue using components rated below 1kV, expanding design options for high-performance power conversion that typically rely on silicon carbide (SiC) technology. The company also claims that, within an SST, the switches will reduce switching losses and require fewer components in the power path. The company said that on the DC side, higher-voltage unidirectional switch (UDS) devices would enable unipolar 800V power generation rather than split +/-400V buses, and support future 1,500VDC bus architectures through split +/-750V generation with fewer switches and lower bridge losses. "Enphase asks more of our technology than almost anyone, and medium-voltage solid-state transformers are exactly where high-voltage GaN proves its value," said Johannes Schoiswohl, senior vice president and head of GaN Systems Business Line at Infineon. "Moving past 650V lets system designers strip cost and loss out of the architecture rather than optimizing around it." "GaN is not new to us. It has been running in Enphase IQ9 Microinverters in the field, and that field data is why we trust it in a megawatt-class system," said Hans van Antwerpen, senior vice president and chief technology officer at Enphase Energy. "Moving to 900V gives us more voltage headroom without giving up high-frequency switching, and it allows us to stay with components rated below 1kV while reducing the number of converters in the system. Fewer parts in the power path means higher efficiency and fewer things that can fail." The 900V GaN BDS devices have been successfully tested and are now being integrated into IQ SST development builds, with production qualification expected to follow. SSTs are growing in popularity across the data center sector, with several major firms signing deals with providers over recent months. Earlier this month, Vantage inked a deal with SST manufacturer Heron Power to secure more than 1GW of the company's SST's to deploy across its hyperscale data center portfolio. Heron has also partnered with Crusoe. Infineon has also partnered with other manufacturers on the technology. Last month, the firm signed a deal with Eaton to provide the company with silicon carbide (SiC) power devices for deployment in the power management firm's medium-voltage SST platform. More in rack level.

MIT Technology Review
Oct 27th, 2026
Solid-state transformers could halve grid power losses as Heron Power raises $140M

Solid-state transformers, which pair magnetic components with high-power semiconductors, could ease a transformer shortage as electricity demand rises from EVs and data centres. They are more compact than conventional units and give more control over power flow. In August, the New York Power Authority and the Electric Power Research Institute tested a one-megawatt prototype built at North Carolina State University. It was about 98% efficient, against roughly 96% for a conventional transformer and rectifier together, which could halve power losses. Heron Power raised $140 million in February to commercialise its version. It is building a $100 million California factory, due to start production in 2027. High-voltage models for transmission lines remain out of reach. Wait times for large conventional transformers stretch to five years.

Business Wire
Oct 21st, 2026
Vantage secures over 1GW of Heron Power's 800 VDC transformer capacity for AI data centres

Vantage, a global digital infrastructure provider, has secured over 1GW of manufacturing capacity from Heron Power Electronics. The deal covers Heron Link, a solid-state transformer that Vantage will deploy at its hyperscale data center campuses. Heron Link converts medium-voltage grid power directly to 800 VDC with integrated energy storage. This cuts the number of conversion stages between the grid and the server rack. Heron targets more than 98.5% efficiency. Vantage says the design reduces equipment, floor space, materials, and installation labour compared with conventional 480 VAC systems. It should also help customers bring AI capacity online faster as rack power needs approach the megawatt class. "We will move 800 VDC from a reference architecture concept to a repeatable, deployed platform," said Drew Baglino, founder and chief executive officer of Heron Power.

Energy-Storage.news
Sep 25th, 2026
US power conversion manufacturers in spotlight: Power Electronics builds Houston factory, Heron Power lands RWE pilot.

US power conversion manufacturers in spotlight: Power Electronics builds Houston factory, Heron Power lands RWE pilot. September 25, 2026 Spain-headquartered Power Electronics has opened a new factory in Houston, Texas, as the US market increasingly looks to build domestic content supply chains. Power Electronics, which provides solar inverters and power conversion systems (PCS) for battery storage, as well as solutions for the data centre and e-mobility industries, held a groundbreaking celebration yesterday (24 September). The 53-hectare site will integrate functions, including logistics, production, electronics manufacturing, R&D, and training, into a single campus. It is expected to create more than 400 jobs in the Houston area. Power Electronics said the site will have an annual production capacity of 40GW when fully ramped up, although the company did not say what the initial capacity is, what the product split at the factory will be, or provide a date by which ramp-up is expected. The Spanish company said the Houston campus will become its most automated inverter production site to date and claimed it represents long-term investment in US industry, skilled employment, technological innovation, and energy infrastructure. The new campus will bring Power Electronics' total annual production capacity worldwide to 105GW. M&A interest in PCS manufacturers. The announcement comes amid growing demand for power electronics from both the energy and, increasingly, data centre markets, coupled with a growing appetite for a US-based domestic content supply chain. The transaction brings to an end Goldman Sachs Alternatives and Cleanhill Partners' four-year ownership of the inverter manufacturer. During that time, other power electronics companies have also been the target of M&A activity within the battery energy storage system (BESS) industry, perhaps most notably US system integrator Powin and then subsequently Hitachi Energy's purchase of Eks Energy after Powin went out of business. RWE to pilot Baglino's Heron Link with integrated SST technology. Limited access to technologies that can expand and enhance the grid was identified by Drew Baglino, founder and CEO of Heron Power, as a bottleneck to meeting rising electricity demand. The former Tesla senior VP of powertrain and energy engineering hopes his new power electronics startup will be able to produce up to 40GW of its Heron Link integrated power conversion solution annually from a factory in Morgan Hill, California, by late 2027. That equates to up to 10,000 Heron Links, a 5MW medium-voltage PCS for large-scale energy and data centre projects, integrating bidirectional inverters with solid-state transformers (SST). Heron Power said in August that it intends to invest more than US$100 million in the facility. Heron Power has raised US$200 million in two funding rounds since February 2026, and just recently hired former Tesla CFO Zachary Kirkhorn to its board. In its latest announcement, earlier this week (21 September), Heron Power said RWE Americas will pilot the deployment of Heron Links at a renewable energy and storage project in Texas. Low-voltage inverters and 60Hz transformers at an RWE BESS installation adjacent to the energy company's 249MW Pyron Wind Farm in Texas' Scurry County will be replaced with Heron Link units. Traditionally, low-voltage inverters and medium-voltage transformers convert DC electricity from solar PV and battery storage plants into medium-voltage AC for the grid; Heron Link replaces both components. Heron Power claims the product delivers 98.6% DC-to-MV conversion efficiency and 99.5% lifetime availability. Other claimed advantages include lower maintenance costs, a US-based domestic supply chain and native grid-forming (GFM) controls. Other manufacturers are now pursuing success with solid-state transformers, including Enphase, which has already brought one to market, and Canadian Solar's E-Storage subsidiary, which, according to the company's CTO, Dr Shawn Qu, is currently "exploring" SST technology. Enphase co-founder and CTO Raghu Belur told ESN Premium in a June interview that SST technology can help address the "power problem" in data centres by consolidating and making more efficient the power delivery chains that carry electricity from the utility to the server racks. RWE has an operating renewable energy and battery portfolio exceeding 13GW across 27 US states, including 6GW of solar PV and 1.2GW of BESS. Based on the outcome of the pilot, RWE may order more Heron Links, beginning with an initial 500MW capacity reservation from Heron Power's US manufacturing facilities.

PR Newswire
Sep 10th, 2026
Heron Power lands $60M credit facility, adds ex-Tesla CFO Zach Kirkhorn to board

Heron Power, an American advanced power electronics manufacturer, has secured a $60 million credit facility from J.P. Morgan and TriplePoint Capital. The company also appointed Zach Kirkhorn, former Tesla CFO, to its board of directors. The facility follows Heron's $140 million Series B round in February 2026, co-led by Andreessen Horowitz's American Dynamism Fund and Breakthrough Energy Ventures. The company is converting a 286,000 square foot facility in Morgan Hill, California, into a factory with mass production targeted for late 2027. Heron has identified over 40 gigawatts of customer interest in Heron Link, its 5 megawatt medium voltage power conversion system. Kirkhorn, who spent 13 years at Tesla including a stint as CFO, has backed Heron since its Series A in 2025.

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