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cltNC...sfCA...aTX
Austin, TX
Joined June 2019
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Jesse Stephens retweeted
We’re in the middle of the sharpest demand inflection the energy industry has seen in a century.
We built @basepowerco to meet it. Distributed storage lets us add capacity on the grid we already have, in months, in the locations that are actually constrained.
@cpatdowling laid out how this works. We’re bringing tens of MWs online per month today, on the way to hundreds. ERCOT is drafting ADER Phase 4 so those MWs can be dispatched where they’re needed. Resources we can build in a few months can help with real congestion, in real time.
Thanks to our friends at Piq Enerrgy for helping pull this together. We hope it’s useful as other markets try to do the same.
The first half of the 20th century saw exponential growth in electricity demand in America, and so we built the largest synchronous machine on the planet. This exponential growth is back. Enormous new productive load is being connected to the grid and new generation, transmission, and storage capacity is needed to make, move, store, and ultimately sell energy to people at an affordable price.
ERCOT is leading the way with the ADER program, and the introduction of Phase IV is creating a powerful new tool to help meet these needs.
@cpatdowling , our founding power systems engineer, outlined how what’s happening in Texas can help solve the capacity crunch: basepowercompany.com/blog/ag…
Jesse Stephens retweeted
We’re excited to announce that Base Energy for Business is now available, offering Texas companies a low, fixed electricity rate.
Electricity is one of the largest hidden operating costs, and many Texas businesses may be paying more than they need to. Upload a recent bill to get a personalized quote and switch online, with no phone calls, site visits, or interruptions to your business.
Jesse Stephens retweeted
Excited to partner with @basepowerco as they launch in Chicagoland. More than 500,000 Chicagoans have dealt with outages just this summer, all while energy bills keep going up. Base is trying to do something about both.
For $95, they install a home battery that can keep your power on during an outage for up to 36 hours—and help save on your monthly energy bills.I’ll be honest, when they first told me, I was skeptical too. Then I met the team, saw how it worked, and wanted to be part of bringing it to Chicago. I spent a lot of years covering first here. Now it’s time to cover home.
Chicago saves on Base. Chicago’s safe on Base. Learn more: bit.ly/anthony-rizzo
#paidpartnership
Jesse Stephens retweeted
Great to partner with @ARizzo44 to help Chicagoans get on Base
Excited to partner with @basepowerco as they launch in Chicagoland. More than 500,000 Chicagoans have dealt with outages just this summer, all while energy bills keep going up. Base is trying to do something about both.
For $95, they install a home battery that can keep your power on during an outage for up to 36 hours—and help save on your monthly energy bills.I’ll be honest, when they first told me, I was skeptical too. Then I met the team, saw how it worked, and wanted to be part of bringing it to Chicago. I spent a lot of years covering first here. Now it’s time to cover home.
Chicago saves on Base. Chicago’s safe on Base. Learn more: bit.ly/anthony-rizzo
#paidpartnership
Jesse Stephens retweeted
For perspective, 52 GW is roughly half of US nuclear power generation, which in turn accounts for ~20% of US electricity generation. So, today’s battery storage capacity could accommodate 10% of US electricity generation, and its capacity is growing 70% per year. Wow.
Solar is Texas's fastest-growing source of power, up from almost nothing a decade ago to about 15% of the state's electricity last year.
Base Power & the Future of Electricity, by @espricewright & @mikemcg0: a16z.news/p/base-power-and-t…
Jesse Stephens retweeted
In honor of their Series D fundraise announcement this week, we went deep with @ZachBDell, @JLopas, and @basepowerco to tell the story of America’s next great energy company.
Jesse Stephens retweeted
We need energy abundance.
Let @ZachBDell @basepowerco 👨🍳
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.
basepowercompany.com/core.
Jesse Stephens retweeted
How Base Power works:
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BREAKING: Base Power Raises $1 Billion Series D, Hitting $13 Billion Valuation & Launching "Base Core"
First-of-its-Kind Home Battery Built in the USA
$2.5B+ in total funding to date
Co-Founder Justin Lopas (@JLopas) gives us a Factory 1 tour in Austin, Texas
Founded in 2023, by Justin & Zach Dell (@ZachBDell). @basepowerco designs, manufactures, & installs home batteries that back up the house & support the grid
Just 10 months after their Series C, this round was led by Micky Malka's Ribbit, Addition, Valor Equity Partners, & JPMorganChase's Strategic Investment Group, with participation from Altimeter, D1 Capital Partners, Sands Capital, Coatue, Layer Global, & Energy Impact Partners
Base’s major existing investors are re-investing, including Thrive Capital, a16z, Lightspeed, Trust Ventures, CapitalG, & more
"It is so critical to bring manufacturing back to the US, especially for critical infrastructure."
"It's a vertical integration thesis. We can cut down cost. We can reduce lead time. We can change the hardware much more quickly."
We Cover:
› Base Core, 40 kWh with a 20 kW inverter, roughly 3X a conventional home battery
› Whole home backup, installed in under an hour
› Fleet past 500 MWh, over 100 installs a day
› 200+ MW of utility partnerships with El Paso Electric, Austin Energy, & CoServ
› Factory 1 built in 6 months, targeting 4,000 units a week by year end
› 100% US and Mexico supply chain
› Batteries installed around data centers to offset interconnection load
𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒
(00:00) Justin Lopas, Co-Founder & COO, Base Power
(01:06) Base Power raises $1B Series D
(02:26) Meet Base Core
(05:42) Demo: Whole-home backup in action
(07:06) How Base Power's business model works
(08:55) Inside Base Power's Factory
(11:28) Why Base Core is 3x larger than other home batteries
(12:05) Inside the manufacturing line
(13:23) Can humanoid robots build batteries?
(14:13) Why Base Power manufactures its own batteries
(15:47) Inside the robotic assembly line
(18:09) How lithium-ion batteries work
(21:40) Scaling production to 4,000 units a week
(22:33) Installing 100+ systems a day
(23:03) COO or Electrician?
(23:53) From oil rigs to Base Power
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Jesse Stephens retweeted
Zach, Justin & team are what I love best about the American innovation machine - solving massive problems at scale in record time. Grt product for homeowners & distributed energy storage will be key to winning the AI race. 🇺🇸🚀
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.
basepowercompany.com/core.
Jesse Stephens retweeted
Base Power raises another $1B to save the grid using backyard batteries techcrunch.com/2026/08/03/ba…
Jesse Stephens retweeted
Base Core is the best and biggest home battery, built right here in Austin. But the actual story is that we now control our own supply. For years, we couldn't build enough batteries for everyone who wanted one. With our own battery, that constraint is gone.
So far, in a supply-constrained world, we’ve saved over 30,000 members tens of millions and backed them up through 28,000 hours of outages. Now the potential for impact feels nearly unlimited. Which means the growth team needs to think much, much bigger.
This is where it gets fun. Come build the biggest, most beloved power company with us.
basepowercompany.com/careers
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.
basepowercompany.com/core.
Base told me they save people money on their electricity bills, keep the lights on during power outages and strengthen the overall power grid.
I couldn’t understand how that was possible or why everyone wouldn’t switch to Base, so I wanted to find out for myself.
I’m now a customer, investor & endorser.
I toured the factory, met the team, visited a home install and asked a whole bunch of questions.
I went on the Base website and typed in my address to see how much they could save me on my electricity bill and it said 35%. I switched right there on the spot. No special VIP pricing, no endorsement trick, I literally logged on and did it myself on the regular website right from my phone.
The one question I kept coming back to was “Save money, protect your home during outages, help support the power grid. Why wouldn’t everyone want to get Base?”
I still haven’t found an answer to that yet.
Today they're launching Base Core, a new home battery fully designed by Base and built right here in Texas.
Check it out here: basepowercompany.com/watt
@basepowerco
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Jesse Stephens retweeted
Thank you to @WSJ for covering the launch of Base Core and our $1B Series D.
The U.S. is undergoing a foundational shift in energy demand, and traditional power generation can't scale fast enough to meet it. Meeting demand this fast calls for new technology that works alongside the grid and adds capacity where it's needed most.
Base Core does just that: one of the largest home batteries on the market at 39.2 kWh, designed and built by Base in Austin, and engineered for rapid deployment at scale.
This new capital will go toward bringing Core to more homes, expanding nationally, and hiring exceptional talent.
The Series D is led by @RibbitCap, Addition, Valor Equity Partners, and @jpmorgan’s Strategic Investment Group, with participation from @AltimeterCap, D1 Capital Partners, Sands Capital, @coatuemgmt, Layer Global, and @EnergyImpact_ . Base’s major existing investors are re-investing, including @ThriveCapital, @a16z, @lightspeedvp, Trust Ventures, @CapitalG, and more.
basepowercompany.com/core
Jesse Stephens retweeted
Totally smashed last year’s demand record here in Texas with 91 GW at peak today.
To put it in perspective, all time records for some other areas:
>California: 52.1GW (2022)
>United Kingdom: 61.5GW (2007)
>Australia: 39.6GW (2024)
Also prices were low by almost any standard (~$50/MWh) during this time.
This is what energy abundance looks like.
Jesse Stephens retweeted
“We do not admire the man of timid peace. We admire the man who embodies victorious effort; the man who never wrongs his neighbor, who is prompt to help a friend, but who has those virile qualities necessary to win in the stern strife of actual life.”
-Theodore Roosevelt
Jesse Stephens retweeted
Born in Austin. Built in Austin. Now serving Austin.
In partnership with Austin Energy, Base is now bringing whole-home backup to our hometown for a fraction of the cost.
See if your home qualifies at BasePowerCompany.com/AustinE…