Atomic @JoinAtomic

We're ecstatic to be leading @joingoldenchild's $25M Series A. Golden Child is building something different: a fresh food system designed from the ground up.

Introducing Golden Child. 🐾 We've built a new food system for dogs that features chef-crafted and vet nutritionist-developed recipes. Because your dog deserves a bowl made with the same care and intention you'd want for yourself. Meet our meals at mygoldenchild.com. 🐶

NEW: The AI Data Center "Boom" is Kinda Fake.. But the power bottleneck is still very real. Inside the energy company using rocks & sunlight to fix AI’s power problem right now.. not in 10 years: @ExowattEnergy Most "announced" data centers will never get built (ahem, Stargate). The ones that do? Running on gas generators. And the U.S. grid has no answer for what’s coming. Hannan Happi, CEO & Co-Founder of @ExowattEnergy, joins Sourcery for a rare facility tour of their 40,000 sqft Miami HQ — walking us through the tech, the team, & why the AI power crisis is far worse than the headlines suggest. Exowatt has raised $140M from a16z, Atomic, Felicis, Sam Altman, Leonardo DiCaprio, Starwood Capital, Thrive Capital, & more, all betting on a deceptively simple idea: concentrate sunlight with Fresnel lenses, store the heat in rocks at 1,000°C, and dispatch electricity on demand. 24 hours a day, no grid required. Their P3 system is built from sand, dirt, and steel. Like a large magnified glass and a rock. No lithium. No cobalt. No China. Target cost: 1 cent per kilowatt hour. In this episode: → Why most announced data centers are phantom projects → The real bottleneck that replaced GPUs: skilled labor → How a 200-year-old engine is at the heart of their stack → What hyperscalers actually say about sustainability (it's not pretty) → Lessons from Tesla on iteration, modularity & vertical integration → Why Miami — and why now With a 90+ GWh demand backlog and commercial deployments live in 2025, this might be one of the most important energy companies emerging in the AI era. Founded in 2023 by Hannan Happi & Atomic CEO @jackabraham, Exowatt's mission is to make sustainable renewable energy always available and almost free. 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) What is Exowatt? The solar backbone for AI data centers (01:30) Why the US grid simply cannot handle what's coming (02:00) Tour begins: Welcome to Lighthouse Miami — 40,000 sq ft facility (02:45) The P3 explained: three elements, one shipping container (04:00) The founding story: Atomic venture studio and the modular hypothesis (05:30) Why solar thermal hasn't followed solar PV's 99.6% cost decline — until now (07:00) North star: 1 cent per kilowatt hour and where they are today (11:00) Inside the world's largest solar simulator — the sun, indoors (13:00) The Fresnel lens up close: a giant magnifying glass for the sun (15:00) "It's rock science" — the 5-year-old explanation of how it works (17:30) Domestic raw materials (sand, dirt, steel) as the real competitive moat (24:30) The phantom data center problem: most announcements won't get built (26:00) From 100 MW to 10 GW: how data center scale exploded in 3 years (30:00) Funding breakdown: $140M, a16z, Felicis, Sam Altman, Leonardo DiCaprio (37:00) Lessons from Tesla: remove parts, iterate fast, build better

When @bling0 says rain or shine, he means it. Great time last night at @blingcapital @JoinAtomic @GVteam @Boldstartvc @stripe Miami Open Cocktail Mixer with so many of my favorite people. @chest @edsim

Sauron, the high-end home security startup for “super premium” customers, plucks a new CEO out of Sonos techcrunch.com/2025/12/28/fro…

Exowatt raises an additional $50M following our $70M Series A — accelerating U.S. manufacturing and deployments of the Exowatt P3, our dispatchable, American-made solar power system built for AI data centers. AI power demand is growing faster than the grid can keep up. Exowatt’s modular, long-duration energy system delivers clean, controllable, round-the-clock energy, solving the time-to-power bottleneck for the AI era. We’re grateful for the continued support of an incredible group of investors in this round: @MVP_Ventures, 8090 Industries, @felicis, @FLAOppFund, @DeepWorkCapital, Dragon Global, @Massive_VC, New Atlas Capital, BAM Ventures, @overmatchvc, @ProtagonistXYZ, @StepStoneVC, @JoinAtomic, @BayBridge_VC, @PrimeQuadrant, and @a16z. 🇺🇸 Together, we’re building the future of clean, dispatchable, American-made energy — designed for scale and purpose-built for the world’s most demanding workloads.

👀 This Thrive-backed startup says it aspires to be the “Amazon of homes” 👷‍♂️ @agarfinks @FortuneMagazine @thetermsheet fortune.com/2025/12/15/thi…

Super interesting company that just raised $41M in debt and equity. BoomPop is powered by AI, but it operates on the premise that “nothing replaces authentic human connection,” CEO and co-founder Healey Cypher told @crunchbasenews. It works as a companion to employees planning off-sites or events for a company, with both self-serve and full-service options. Customers include Netflix, Google, and Amazon, among others. Article link in comments.

Acne is the most common skin condition in the US, affecting 50m Americans. Rather than ineffective surface treatments or waiting weeks for a dermatologist appointment, ClearPen can enable at-home treatment of inflammatory acne the moment it appears webwire.com/ViewPressRel.a…

Introducing Indomo, the company we’ve been quietly building to bring dermatologist-grade care to the home. Our 1st product, ClearPen, is an investigational at-home injectable to treat inflammatory acne based on the same science dermatologists use today. bloomberg.com/news/newslette…

🚨 @TBPN TALKING ABOUT $HIMS CEO ANDREW DUDUM @johncoogan: "Who's the most underrated (or greatest) entrepreneur of all-time?" @natebosshard: "In the last decade, Andrew Dudum of Hims & Hers. Fastest consumer company to go public. The only successful consumer SPAC trading at $11B. HE IS AN ABSOLUTE KILLER. He is incredibly underrated."

Excited to share we’ve raised $70M in our Series A to deliver scalable, 24/7 power for AI data centers. Shoutout to our team and investors, @a16z, @MVP_Ventures, Starwood Capital, MCJCollective, @felicis, Thrive Capital, @goat_capital, @atomic, @StepStoneVC, 8090 Industries

Super excited to share that @Felicis is leading the Series A of @ExowattEnergy amidst unprecedented demand for clean energy especially from #AI data centers. Proud to partner with @HaPi31415 and @jackabraham to make clean energy abundant with an American supply chain to boot ! Plus a great syndicate w @JoinAtomic, @a16z, @sama, and @LeoDiCaprio !  felicis.com/insight/invest…

.@FastCompany named us to its Best Workplaces for Innovators, for “demonstrating a commitment to capturing great ideas wherever they originate.” A great idea isn’t even enough. We strive for the exceptional idea, to separate that from the rest. Join us fastcompany.com/best-workplace…

Exowatt launches today! ☀️ The power requirements to scale AI are astronomical. Within a decade AI will require 650TWh of new power generation – more than the electricity demand of South Korea. In the U.S. alone, data centers will require the equivalent amount of electricity to power 40 million households by 2030. Exowatt P3s can generate electricity at scale at just a $0.04 LCOE and with entirely renewable tech. That’s lower than the cost of most fossil fuels and doesn’t account for subsidies. We have already amassed a 1.2 GW backlog, worth $Bs from the mega tech hyperscalers, energy and data center companies. The system works by capturing the sun’s energy in the form of heat, storing it in a heat battery and converting it to electricity via a heat engine even when the sun is no longer out. This changes the economics of solar by solving a problem called the “Duck Curve” where all conventional solar producers are forced to sell their power at the same time while at maximum output, driving the electricity cost sometimes to zero or negative intraday and leaving no supply at night. Data centers need to operate 24/7 and typically have 60% of their OPEX from energy costs, so an inexpensive and ever available alternative is very important to them. Data centers are straining to bring capacity online and without solutions like Exowatt, are being forced to turn to fossil fuels like coal, oil and natural gas. We hope you’ll join us in pushing forward an abundant and non fossil fuel powered future!⚡️ bloomberg.com/news/articles/…

At the time of this, I joked that Satish @Redpoint had been on the Midas List 6 more times than me (6 vs 0). Now 7. A rare interview with the rare VC who never VC brags, tweets, blogs, pods. Hear how he invested in Snowflake @ $50m, what makes a great leader vs. manager, and more

Last month, we gathered ~100 entrepreneurs in NYC for our annual Builders Summit. The day was filled with insights, ideas, discussions with inspiring leaders like Satish @Redpoint, @emilmichael, Liza @Stash @NEA, @hilaryacoles, @chrissyfarr, @alexbard. Watch this space for highlights!

Most subscription companies don’t realize that half of their customer churn is accidental and can be recovered. @ButterPayments 🧈 boosts top-line for consumer and SaaS businesses by ~10%, addressing this ~$440B problem. @ShenLucinda @axios with more here axios.com/pro/fintech-de…

Renewable energy company Exowatt scored $20 million from the OpenAI CEO and other investors. @chlobo_ilo trib.al/qCNhxBw

“Instead of solar panels arrayed across a field, Exowatt has developed modules roughly the size of shipping containers that contain solar lenses. The lenses convert energy from the sun into heat…allowing the modules to store energy for up to 24 hours a day.” a16z’s @rmcentush wrote about the struggles of the electric grid here: a16z.com/decentralizing…

The Wall Street Journal @WSJ

2 years ago

OpenAI’s Sam Altman is among the investors putting $20 million into Exowatt, a startup that aims to help meet artificial intelligence’s ravenous electricity demands on.wsj.com/3W8ww6E on.wsj.com/3W8ww6E

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