From: Mercom India
Optivolt, a power electronics company developing module-integrated electronics for solar systems, has raised $32 million in a Series A funding round led by VXI Capital. The latest round brings Optivolt’s total capital raised to $42 million.
RA Capital, Valo Ventures, and Atlas Innovate also participated in the funding round.
The company plans to use the proceeds to expand manufacturing and deploy its technology across residential, commercial, and utility-scale solar systems, including projects intended to supply power to AI data centers.
Optivolt’s Power Balancer embeds active power electronics directly into the solar module. The system manages energy among groups of solar cells in real time and is designed to reduce losses caused by shading, dirt, weather conditions, and uneven degradation.
“Solar became cheap enough to compete. I founded Optivolt to make it intelligent enough to power the world,” said Rohit Kalyanpur, founder and CEO of Optivolt. “For nine years, we’ve rebuilt the solar module from first principles, embedding aerospace-grade power electronics so it can respond to Earth as it actually is, not the ideal conditions of a lab. The result is the first solar module system that thinks for itself – one that adapts to shade, weather, dirt and degradation in real time, recovering energy conventional solar leaves behind. The next step is putting it everywhere.”
In conventional solar module, an underperforming cell can restrict output from a larger group of cells or trigger a bypass diode that removes the affected group from production. Optivolt said its architecture redistributes energy among cell groups to address mismatches within the module.
The Power Balancer replaces conventional bypass diodes and incorporates rapid shutdown and monitoring functions. According to the company, this can allow solar systems to operate without separate module-level optimizers, microinverters, or rapid shutdown devices.
Optivolt said integrating active power electronics inside a solar module required the company to address heat generated within the module. The company said the Power Balancer operates at 99.4% conversion efficiency under typical conditions.
The company has received UL certifications covering its integrated junction box enclosure, module-integrated electronics, rapid shutdown system, and solar module safety. According to Optivolt, more than 20,000 module incorporating the Power Balancer have been shipped.
In 1H 2026, VC funding activity in the solar sector decreased 40% YoY to $1.5 billion, down from $2.5 billion in the first half of 2025. Deal activity increased 9% YoY, with 35 deals in the first half of 2026 compared to 32 in 1H 2025, as per Mercom’s 1H and Q2 2026 Solar Funding and M&A Report.
Earlier this month, VECKTA, an energy planning and procurement platform, raised $11 million in an oversubscribed Series A funding round led by Origin Ventures. The funding will support the expansion of the company’s U.S. customer team, product capabilities, partnerships, and supplier network.
