Base Power has secured $1 billion in Series C funding to expand its network of home battery systems across the United States. The Austin-based energy startup, founded by Zach Dell, is reimagining how electricity is stored and shared in American homes.
The funding round was led by Addition, with participation from returning investors such as Trust Ventures, Valor Equity Partners, Thrive Capital, Lightspeed, Andreessen Horowitz, Altimeter, StepStone, and Elad Gil. New backers include Ribbit, CapitalG, Spark, BOND, Lowercarbon, Avenir, Glade Brook, Positive Sum, and 1789 Capital. The size of the round shows strong investor confidence in Base Power’s vision.
The company’s mission is simple but transformative. It wants to build a network of connected home batteries that strengthen the grid while providing homeowners with reliable power.
Instead of depending only on large power plants, Base Power believes in distributed energy. Each home battery can store excess electricity from the grid or from solar panels and release it during high demand. This system makes power delivery more stable and reduces the risk of outages.
By allowing households to store and sell energy, Base Power helps turn everyday consumers into energy producers. Homeowners can earn income from their surplus power while supporting a cleaner, more efficient grid.
“The opportunity to reinvent our power system comes once in a generation,” said Zach Dell, CEO and co-founder of Base Power. “We’re scaling our team to make an abundant energy future a reality.”
The company’s approach also focuses on accessibility. Its leasing model allows customers to use home batteries without high upfront costs.
Through simple monthly payments, homeowners gain backup power and energy independence. The model also supports grid stability by linking thousands of batteries into a single distributed system.
As climate change causes more extreme weather, demand for energy resilience continues to grow. Base Power’s distributed network helps homes stay powered during storms and other grid disruptions.
The company is also investing heavily in domestic manufacturing. It is building its first energy storage and power electronics factory in downtown Austin.
The facility will sit on the former Austin American-Statesman printing press site. It will produce advanced battery units and related components, helping to create local jobs and strengthen the U.S. supply chain.
Plans for additional factories are already underway. Each one will increase production capacity and help meet the growing demand for home energy systems nationwide.
Base Power recently achieved a major milestone by qualifying for Texas’s Aggregated Distributed Energy Resource (ADER) program. This allows the company to combine power from thousands of home batteries and sell it directly into the Texas grid.
The move creates a new source of income for participating homeowners. It also improves grid reliability by enabling localized power sources to respond quickly when energy demand rises.
“We’re building domestic manufacturing capacity to fix the grid,” said Lopas, an executive at Base Power. “The only way to add capacity is to deploy physical hardware, and we’re making that here in the U.S.”
He added that the Austin factory is only the beginning. The company is already planning its second facility and investing in tools, systems, and processes to reindustrialize America’s energy infrastructure.
The new round of funding will support manufacturing, research, and software development. A portion of the capital will go toward building more factories and advancing battery technology.
Another focus area is software optimization. Base Power is developing systems that decide when to store or release energy, improving efficiency across its battery network.
This software-driven approach will make the network more responsive to real-time energy needs. It ensures that homes, neighborhoods, and grids operate in harmony.
The company’s investors see this as the future of the energy industry. Venture firms that once focused only on software are now investing in hardware and infrastructure.
For groups like Addition and Andreessen Horowitz, Base Power represents more than a startup. It’s a company solving real-world problems with scalable technology that reshapes daily life.
Base Power is part of a larger movement to decentralize energy production. The U.S. grid, built a century ago, was never designed for today’s demand from electric vehicles and data centers.
By installing energy storage in homes, Base Power is helping to create a more flexible and reliable power network. It allows energy to flow both ways—from grid to home and from home to grid.
With its new funding, Base Power is ready to accelerate its mission nationwide. Its blend of innovation, manufacturing, and software is setting a new standard for clean power deployment.
The company’s work represents more than a business opportunity. It is a step toward reimagining how Americans produce, store, and use electricity.
Base Power’s vision could define the next era of the U.S. energy system. For millions of homeowners, its technology might soon be the force keeping the lights on and the grid strong.
