Optivolt, a San Francisco-based power electronics company, announced a $32M Series A funding round led by VXI Capital, bringing its total capital raised to $42M. The financing round included participation from RA Capital, Valo Ventures, and Atlas Innovate, as well as backing from prominent solar industry figures including Enphase founding CEO Paul Nahi, former SunPower CEO Tom Werner, and former New York energy official Richard Kauffman.
The company has developed what it calls the Power Balancer, a technology that embeds active power electronics directly within solar panels to manage energy distribution among cell groups in real time. According to Optivolt, this approach addresses fundamental inefficiencies in conventional solar panels, which lose power due to shading, weather conditions, dirt accumulation, and uneven degradation. The Power Balancer redistributes energy to mitigate these losses before they cascade into larger reductions in panel output. The company stated that in internal testing, panels incorporating its technology produced up to six times as much power as panels using bolted-on optimizers under defined shade scenarios.
Optivolt’s technology operates at 99.4 percent conversion efficiency under typical conditions and addresses a significant engineering challenge by employing aerospace-grade design principles to manage heat dissipation within the panel. The company has secured 19 issued patents with 27 additional applications pending related to its panel-integrated architecture. Optivolt has earned multiple UL certifications covering its integrated junction-box enclosure, electronics, rapid-shutdown system and module safety standards.
The company stated it has already shipped more than 20,000 panels incorporating the Power Balancer technology. With the new financing, Optivolt plans to expand manufacturing capacity and scale deployment across residential, commercial and utility-scale applications, including solar systems designed to support artificial intelligence data centers. The company’s stated long-term objective is to create intelligent, connected solar panels capable of managing their own performance while coordinating with broader energy networks.
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