The world's electricity grid is facing pressure from rising demand and a shortage of traditional transformers, which can have wait times of up to five years. Conventional transformers rely on large amounts of specialized steel and copper wire to change voltage levels for transmission and distribution. However, researchers and companies are developing solid-state transformers that combine magnetic components with high-power semiconductors. These devices can be roughly one-tenth the size of conventional models while offering the same capacity, and they provide greater control over the frequency and stability of the current.
In August, a one-megawatt solid-state transformer built in the lab of Srdjan Lukic, a professor at North Carolina State University, was tested by the New York Power Authority and the Electric Power Research Institute. Operating at about 15,000 volts, the prototype achieved approximately 98% efficiency, compared to the roughly 96% efficiency of an equivalent conventional setup. In the near term, developers are focusing on using the technology for data centers, though adapting these transformers for high-voltage transmission lines will require further engineering.
Companies are already investing heavily in this new technology. In February, Heron Power raised $140 million to commercialize its modular solid-state transformer, the Heron Link. According to CEO Drew Baglino, the company is building a $100 million factory in California that should begin production in 2027 and reach a capacity of 40 gigawatts per year by 2029. While $1.7 billion has recently been invested in the US power transformer supply chain, according to Wood Mackenzie analyst Benjamin Boucher, solid-state models could be a crucial part of meeting future infrastructure needs. SEO açıklaması: Solid-state transformers could help solve grid supply issues by reducing physical size and improving energy efficiency compared to older models. Slug: solid-state-transformers-grid-modernization