Investors See Future in Smart Solid-State Transformers
New solid-state transformers could replace clunky copper boxes on the grid, offering smarter power control and saving space for data centers and EV chargers.
Boston, MA: Solid-state transformers are getting a lot of attention from investors these days. These new devices could change how electricity flows on the grid.
Traditional transformers have been around since Thomas Edison made his first light bulb. They use copper and iron and work well but have limits. They can’t monitor power or control it. They only do one thing at a time.
Solid-state transformers use computer chips and special materials like silicon carbide. They can take power from different sources – power plants, solar panels, or batteries. They can change that power to either alternating current or direct current at different voltages.
Why do people care so much about these new transformers? Many old transformers on today’s power grid are very old – 35 years or more. More people want electricity for data centers, electric car chargers, and other things. This means we need more transformers soon.
Data centers like solid-state transformers because they take up less space. One solid-state transformer can do the work of several old ones. Data centers use them to make microgrids that keep running even if the main power grid fails. The transformers also give finer control over electricity flow.
Three companies are working hard on this technology. DG Matrix raised $60 million. Amperesand raised $80 million. Heron Power raised $140 million. Investors think these companies might grow very big.
These smart transformers save space and cost less to install in places where many devices are needed. In a data center, one solid-state transformer can replace equipment worth $60 to $70 per unit compared to old equipment.
The new transformers might not replace giant old ones at power stations right away. But data centers and charging stations for electric cars will likely use them first. Later, when they become cheaper, more people may use them on the wider power grid.
One big advantage is that smart transformers can handle more electricity on the same wires. This means power companies might not need to build as many new power lines. Using existing poles and wires more efficiently could help keep electricity costs lower for everyone.
These transformers also react quickly when power problems happen. Old transformers can’t do that. When they become common on the grid, electricity service might become more reliable for homes and businesses everywhere.