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Today we are announcing our $1B Series C, but money isn’t the story. The story is what we’ll do with it, and the scale of the challenge ahead. Our mission isn’t constrained by capital, supply, or demand. It’s constrained by talent. To build America’s next great power company, we need the engineers, operators, and creatives ready to take on the challenge to join us. Power is the most important product in the world. It runs through everything: our homes, hospitals, schools, factories, and future. And the grid that delivers it is breaking. At Base, we’re building the future of power so human progress can accelerate. In the past two years, we’ve grown from an idea into one of the fastest growing energy companies in America. Now we’re entering a new phase of growth. Our first manufacturing site is rising in the heart of Austin, inside the former Austin American-Statesman printing press. Here we’ll build our own hardware to meet surging demand and scale nationwide. This is a key step in putting a battery on every home in the country. Few teams get to say their work powers human progress. We do. With a billion dollars of fuel, our next wave of growth will be defined not by capital, but by people who choose to step up, take ownership, and build the next great American power company. The old system is breaking. Come build the new one. Our Series C was led by Addition, with participation from both new and existing investors including Trust Ventures, Valor Equity Partners, Thrive Capital, Lightspeed, Andreessen Horowitz, Altimeter, StepStone, Elad Gil, 137 Ventures, Terrain, Waybury, Ribbit, CapitalG, Spark, BOND, Lowercarbon, Avenir, Glade Brook, Positive Sum, and 1789.

Today, we're launching Base Core, our own battery designed & built in Texas, and announcing our $1B Series D to bring it to homes across the country. Three years ago, we started Base with a belief that batteries were the unlock to energy abundance. We saw battery storage as the foundation of a modern energy system, and believed we could win the market with vertical integration, technology, and relentless execution (what we now call Base Pace). So we set out to build a network of distributed batteries to deliver affordable, reliable electricity to homeowners and utilities. While the job is far from finished, the launch of Base Core is the most meaningful step in that plan. We’ve spent the last few years learning hard lessons about building a distributed battery fleet, going from 1 install per day in June of ‘24 to 100 installs per day in June of ‘26. These lessons - how the battery is shipped, installed, used, and monitored - informed the design of Core. Now, Core will be the foundation of the company's next phase of growth. Base Core is a first-of-its-kind home battery. At ~40 kWh it is 3x the size of most home batteries, providing up to 36 hours of backup for the average home. In the event of multi-day outage, Core is equipped with a (first of its kind) generator port - pull out a small portable generator and charge the battery back up to keep your home running as long as you need. When an outage does happen, the backup is seamless - most members won't even notice the grid went down. It's built to withstand Texas summers, Chicago Winters, and everything in between. And finally, it’s manufactured by our team in Austin, at Base Factory 1, right across the street from our HQ. This new capital will bring Core to more homes and to accelerate our ambition beyond batteries. The round is co-led by Ribbit, Addition, Valor, and JP Morgan, with participation from new major investors D1, Sands, Coatue, Layer Global, and Energy Impact Partners. All of Base’s major existing investors are re-investing, including Thrive, Altimeter, Lightspeed, a16z, CapitalG, Trust, and more. This brings our valuation to $13B. As we enter the most important growth period in the history of the electricity industry, our mission has not changed - advance human prosperity by delivering the world's most affordable and reliable electricity. Our strategy has not changed - technology, plus vertical integration, plus relentless execution, leads to a compounding cost advantage. What has changed is the scope of our ambition - this new capital, along with the team and capabilities we've built over the last three years, positions us to build technology across the electric stack, including what it takes to serve surging demand from AI, and to deepen our partnerships with utilities as they work to meet rising demands. Electricity is the largest and most essential industry in the world, and it does not have a defining technology company. The company that delivers the most affordable, reliable power will be one of the largest and most impactful companies in the world. We intend to build it. If you'd like to join us, reach out. Onwards. https://t.co/Qp3F9rPtLa.

As the old saying goes, the first 100 MWh is the hardest…

Teams that run together win together

It’s time for an upgrade in retail energy. Today we’re announcing Base Energy, bringing our low energy prices to all Texans who can choose their electricity provider. When we started Base, we set out to deliver affordable, reliable power by building low-cost distributed power plants powered by modern technology and vertical integration. Less than two years from our public launch, we’re adding more MW per month to the Texas grid than anyone. Now we’re able to share the benefits of that growing battery fleet with customers across Texas. This is the first step in building the world’s largest energy retailer. We are just getting started.

2 down, 48 to go Here we come IL

Base is now available in all of DFW. We are excited to continue our growth across Texas with this expansion. More to come soon on other new markets. Affordable & reliable power available now, all over the Metroplex.

As the old saying goes, the first 100 MWh is the hardest…

Today, we're launching Base Core, our own battery designed & built in Texas, and announcing our $1B Series D to bring it to homes across the country. Three years ago, we started Base with a belief that batteries were the unlock to energy abundance. We saw battery storage as the foundation of a modern energy system, and believed we could win the market with vertical integration, technology, and relentless execution (what we now call Base Pace). So we set out to build a network of distributed batteries to deliver affordable, reliable electricity to homeowners and utilities. While the job is far from finished, the launch of Base Core is the most meaningful step in that plan. We’ve spent the last few years learning hard lessons about building a distributed battery fleet, going from 1 install per day in June of ‘24 to 100 installs per day in June of ‘26. These lessons - how the battery is shipped, installed, used, and monitored - informed the design of Core. Now, Core will be the foundation of the company's next phase of growth. Base Core is a first-of-its-kind home battery. At ~40 kWh it is 3x the size of most home batteries, providing up to 36 hours of backup for the average home. In the event of multi-day outage, Core is equipped with a (first of its kind) generator port - pull out a small portable generator and charge the battery back up to keep your home running as long as you need. When an outage does happen, the backup is seamless - most members won't even notice the grid went down. It's built to withstand Texas summers, Chicago Winters, and everything in between. And finally, it’s manufactured by our team in Austin, at Base Factory 1, right across the street from our HQ. This new capital will bring Core to more homes and to accelerate our ambition beyond batteries. The round is co-led by Ribbit, Addition, Valor, and JP Morgan, with participation from new major investors D1, Sands, Coatue, Layer Global, and Energy Impact Partners. All of Base’s major existing investors are re-investing, including Thrive, Altimeter, Lightspeed, a16z, CapitalG, Trust, and more. This brings our valuation to $13B. As we enter the most important growth period in the history of the electricity industry, our mission has not changed - advance human prosperity by delivering the world's most affordable and reliable electricity. Our strategy has not changed - technology, plus vertical integration, plus relentless execution, leads to a compounding cost advantage. What has changed is the scope of our ambition - this new capital, along with the team and capabilities we've built over the last three years, positions us to build technology across the electric stack, including what it takes to serve surging demand from AI, and to deepen our partnerships with utilities as they work to meet rising demands. Electricity is the largest and most essential industry in the world, and it does not have a defining technology company. The company that delivers the most affordable, reliable power will be one of the largest and most impactful companies in the world. We intend to build it. If you'd like to join us, reach out. Onwards. https://t.co/Qp3F9rPtLa.

Today we are announcing our $1B Series C, but money isn’t the story. The story is what we’ll do with it, and the scale of the challenge ahead. Our mission isn’t constrained by capital, supply, or demand. It’s constrained by talent. To build America’s next great power company, we need the engineers, operators, and creatives ready to take on the challenge to join us. Power is the most important product in the world. It runs through everything: our homes, hospitals, schools, factories, and future. And the grid that delivers it is breaking. At Base, we’re building the future of power so human progress can accelerate. In the past two years, we’ve grown from an idea into one of the fastest growing energy companies in America. Now we’re entering a new phase of growth. Our first manufacturing site is rising in the heart of Austin, inside the former Austin American-Statesman printing press. Here we’ll build our own hardware to meet surging demand and scale nationwide. This is a key step in putting a battery on every home in the country. Few teams get to say their work powers human progress. We do. With a billion dollars of fuel, our next wave of growth will be defined not by capital, but by people who choose to step up, take ownership, and build the next great American power company. The old system is breaking. Come build the new one. Our Series C was led by Addition, with participation from both new and existing investors including Trust Ventures, Valor Equity Partners, Thrive Capital, Lightspeed, Andreessen Horowitz, Altimeter, StepStone, Elad Gil, 137 Ventures, Terrain, Waybury, Ribbit, CapitalG, Spark, BOND, Lowercarbon, Avenir, Glade Brook, Positive Sum, and 1789.

Everything is bigger…

Teams that run together win together

It’s time for an upgrade in retail energy. Today we’re announcing Base Energy, bringing our low energy prices to all Texans who can choose their electricity provider. When we started Base, we set out to deliver affordable, reliable power by building low-cost distributed power plants powered by modern technology and vertical integration. Less than two years from our public launch, we’re adding more MW per month to the Texas grid than anyone. Now we’re able to share the benefits of that growing battery fleet with customers across Texas. This is the first step in building the world’s largest energy retailer. We are just getting started.

Warehouse visit today The team is cooking 🧑‍🍳 Affordable & reliable power coming to a neighborhood near you 🔋🇺🇸

Base is now available in all of DFW. We are excited to continue our growth across Texas with this expansion. More to come soon on other new markets. Affordable & reliable power available now, all over the Metroplex.