Voltus, a distributed energy resource platform based in San Francisco, has raised US$225 million in an oversubscribed Series D financing round. Generation Investment Management led the round, while Activate Capital and Vitol served as co-leads. The company will use the capital to expand its network of connected batteries and building systems and to scale its Bring Your Own Capacity program across North America.
Responding to a Growing Grid Capacity Gap
The North American Electric Reliability Corporation projects that peak electricity demand will grow 24% over the next decade, more than double the increase it forecast two years ago. Voltus aims to help close this capacity gap by tapping flexibility in batteries, cooling systems, and industrial processes at thousands of businesses and homes. These participants can reduce, shift, or supply power to lower energy bills and earn new revenue while supporting grid reliability.
Voltus expects to grow its platform to 20 gigawatts by 2030 as it executes on its Bring Your Own Capacity program in PJM and MISO and expands across the United States and Canada. The company describes itself as building the grid's flexibility layer, dispatching latent capacity into electricity markets every day. By getting more out of existing infrastructure, flexibility can help bring down electricity rates for everyone.
Investor Confidence in Flexible Capacity
Dana Guernsey, Chief Executive Officer of Voltus, said electricity is now the constraint behind almost every major ambition, but it does not have to be. She added that the question is no longer whether the grid needs flexibility, but how quickly it can become foundational. The Series D round drew investors from energy security, economic development, sustainability, and artificial intelligence infrastructure.
Dave Easton, Partner for Growth Equity at Generation Investment Management, said the fastest, most cost effective, and lowest carbon source of new capacity is often the one already connected to the grid. He noted that Voltus turns the flexibility of businesses, homes, and batteries into reliable power, helping the artificial intelligence buildout meet its energy needs. Easton added that the co-founders have spent more than a decade focused on this challenge, well before data center and electrification demand surged.
Raj Atluru, Managing Partner at Activate Capital, called flexibility the fastest and cheapest capacity the grid can add. He said Voltus has spent a decade building the platform and market access needed to deliver it at scale. Atluru also noted that demand from data centers and electrification has strengthened the investment thesis.
R. Andrew de Pass, Head of Energy Transition Investments at Vitol Inc., said economic success depends on a resilient power system enabled by companies such as Voltus. He noted that weather events and data centers require a smarter and more efficient power system. Vitol, one of the largest power traders in the United States, will work with Voltus to develop innovative product offerings.
Building a Flexible North American Grid
The financing round also included Broadscale Group, Climate Investment, NGP, Ajax Strategies, and All Aboard Fund. These investors reached the same conclusion that flexible capacity is necessary to meet rising energy demand. Voltus plans to use the new capital to strengthen its leadership position across the United States and Canada.
Voltus's US$225 million Series D round marks a significant step toward scaling the grid's flexibility layer at a time of rapid demand growth. With strategic investors spanning energy, climate, and infrastructure, the company is positioned to expand its Bring Your Own Capacity program and support a more resilient power system. The investment reflects growing recognition that using existing connected assets can deliver reliable capacity faster and more affordably than building new infrastructure.