Climate CEOs

What if America could add gigawatts of nuclear power without building new nuclear plants? Alva Energy is upgrading existing reactors to produce 20–30% more power, potentially adding 200–300 megawatts per plant in just 3–5 years.

Company bio:

Alva Energy is developing technology to increase the output of existing nuclear power plants by upgrading their nuclear steam systems and adding a second turbine generator. The company is already working exclusively with six operating reactors, and estimates projects could add roughly 200–300 MW for around $1B, less than one-fifth the cost of new nuclear construction.

Speaker bio:

James Krellenstein is the co-founder and CEO of Alva Energy. A physicist by training and the son of a nuclear engineer and energy economist, James combines nuclear technology, project finance, and first-principles thinking. Alva has raised a $32M Series A led by former Intel CEO Pat Gelsinger with Playground Global.

Five lessons for entrepreneurs:

• Look for billion-dollar opportunities hiding in plain sight – Alva’s core nuclear uprate approach had already been demonstrated in Sweden. The opportunity came from understanding why it hadn’t scaled in the US—and redesigning around that bottleneck.
• Go to the source material – James traces part of Alva’s technical insight to reading a 15,000-page nuclear engineering filing. Secondary summaries are convenient; sometimes the best opportunities are buried several layers deeper.
• Design the financing alongside the technology – Alva separates its venture-backed TopCo from individual project companies that can use project debt and equity. The goal is to make nuclear upgrades financeable like other infrastructure assets.
• Don’t let venture capital’s obsession with speed destroy execution – Demand grew faster than Alva expected, reaching engineering exclusivity with six reactors in under two years. James has deliberately tapped the brakes when necessary because nuclear engineering quality matters more than locking up TAM.
• Align incentives around getting projects built – Instead of relying on traditional time-and-materials contracts that can reward higher project costs, Alva uses fixed-price structures and invests alongside project investors. Everyone benefits from bringing projects online faster and cheaper.

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Most hiring mistakes don’t happen because CEOs can’t recognize talent. They happen because interviews reward candidates who are good at interviewing.

This minisode explores a more rigorous method for hiring executives (topgrading), and how climate CEOs can uncover performance patterns before making an expensive mistake.

Look for patterns, not polish — Walk through a candidate’s career job by job to understand what they accomplished, where they struggled, why they left, and what patterns repeat.

Ask the same questions about every role — What were you hired to do? What did you accomplish? What were the low points? Why did you leave? Consistency makes comparisons easier and exposes gaps.

Use the Threat of Reference Check — Ask candidates what each former boss will say about their performance. Knowing you may verify the answer tends to produce more candid responses.

Test for startup fit, not just executive credentials — A successful Fortune 500 executive may struggle when the job requires getting into the weeds during a funding round, factory scale-up, or major customer deployment.

Spend more time before the hire — A rigorous interview process takes longer upfront. But that cost is tiny compared with losing six months to the wrong executive and starting the search again.

The core lesson — Your goal isn’t to hire the best interviewer. It’s to find evidence that someone has repeatedly produced the results you need in environments similar to yours.

👉 Get the written summary:
https://entrepreneursforimpact.substack.com/p/the-climate-ceos-method-for-hiring

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Climate tech finance, strategy, leadership. 2-min read.

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What if commercial businesses could cut clean energy project costs by up to 45%, all while someone else finds, buys, finances, and operates on-site systems on massive real estate portfolios?

Company bio:

VECKTA Energy is a technology platform that helps businesses design, procure, finance, and operate on-site energy systems, including solar, batteries, and generators. Its platform can analyze thousands of data points across large property portfolios, identify the best opportunities, and connect buyers with a network of 4,000+ suppliers, developers, equipment providers, and financiers.

Speaker bio:

Gareth Evans is the founder and CEO of VECKTA Energy. An environmental scientist by training, his career took him from oil and gas projects in Iraq to leading a global power consulting practice, where he saw firsthand both the vulnerability of traditional energy supply chains and the complexity of buying distributed energy systems.

Five lessons for entrepreneurs:

• Turn complexity into your moat – Vecta sits between consultants, developers, financiers, equipment providers, and customers. Instead of avoiding a fragmented market, it built technology to coordinate it.
• Align your business model with customer outcomes – Customers pay a subscription, but Vecta also earns a success fee when projects actually get contracted. The company wins more when customers move from analysis to steel in the ground.
• Sell economics before sustainability – Gareth has watched customer priorities shift from sustainability toward cost, predictability, and increasingly reliability. Meet customers where their budgets and pain actually are.
• Follow customers into new markets – Rather than expanding internationally because the TAM looks attractive, Vecta follows existing customers into new geographies, pressure-tests the model, and then decides where to invest at scale.
• Earn your stripes before chasing the title – Gareth’s advice to younger leaders: be patient, learn the craft, take difficult assignments, and build credibility. Responsibility is more valuable when you’ve developed the judgment to handle it.

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Most acquisitions don’t fail because the deal thesis was wrong. They fail because integration breaks exactly what made the company worth buying.

This minisode explores why climate tech M&A goes sideways and four questions CEOs should ask before signing the deal.

Why good deals go bad — The spreadsheet may show compelling synergies (ugh, that word!), but value disappears when key employees leave, customers defect, or bureaucracy slows down the acquired company.

Protect the people who create the value — Identify which employees are essential to technology, customer relationships, and execution. Then build retention plans before closing, not after they resign.

Protect customer relationships — A customer who trusted the founder may not automatically trust the acquirer. CEOs need to identify vulnerable accounts and manage those relationships explicitly.

Assign owners to every source of value — They need an owner, budget, timeline, and incentives. Otherwise, they remain as tentative numbers in an acquisition model.

Know what not to integrate — Sometimes the best integration strategy is leaving parts of the acquired company alone. Preserve the speed, culture, relationships, or operating model that made it valuable in the first place.

The core lesson — CEOs often spend more time negotiating the purchase price than planning the first 100 days. That’s backward. The deal creates the possibility of value. Integration determines whether it ever shows up.

👉 Get the written summary:
https://entrepreneursforimpact.substack.com/p/the-climate-tech-acquisition-question

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Climate tech finance, strategy, leadership. 2-min read.
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If you got value, take 30 seconds and do the community a favor. It helps push more capital and talent toward scalable climate solutions.

Electric vehicles shouldn't just be gas trucks with batteries. They should be entirely different machines. That's the premise behind Tello Trucks' attempt to reinvent one of America's most iconic vehicles.

Company bio:

TELO Trucks is an electric vehicle company building a mini truck designed to deliver full-size truck utility in a much smaller footprint. The vehicle is engineered for city life, with easier parking, better maneuverability, and strong towing and payload capabilities. The company’s core idea is that electrification should enable completely new vehicle designs, not just “gas cars with batteries.”

Speaker bio:

Jason Marks is the co-founder and CEO of TELO Trucks. He is a mechanical engineer by training, a lifelong vehicle builder, and an automotive safety expert with deep experience in validation, radar/LiDAR systems, and vehicle crash safety. Before Tello, he worked across the automotive ecosystem, and he brings a highly technical, founder-led approach to product, manufacturing, and team building.

Five lessons for entrepreneurs:

• Use a technology shift to rethink the category – Don’t just copy the old product in a new form factor; ask what the new technology makes possible. For example, EVs allow for a much shorter vehicle with the same or greater functionality.
• Start with a niche, but tell a big story – A focused wedge can get you moving, but investors and talent need to see the world-changing vision. Think A, B, then Z.
• Capital efficiency matters – Small design choices can dramatically reduce material, parts, and manufacturing complexity. Don’t ignore the beneficial cascade effect.
• Customer obsession shapes the product – Direct feedback from users can improve real design decisions, not just marketing. And even better when all your employees want to be customers of your future product.
• Founder credibility compounds when it comes from lived expertise – Jason’s technical background lets him make unusually bold claims because he can tie them to concrete engineering decisions, not just vision.

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• Private CEO group for VC/PE-backed climate tech founders navigating capital, strategy, and scale. Capped at 45 CEOs.
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• Climate tech finance, strategy, leadership. 2-min read.
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• If you got value, take 30 seconds and do the community a favor. It helps push more capital and talent toward scalable climate solutions.

What if the cheapest, largest carbon removal machine on Earth isn't a factory, but phytoplankton in the ocean?

Company bio:

Gigablue is building MCFS (Microalgae Carbon Fixation and Sinking), a marine carbon removal method that uses phytoplankton and carbon carrier pods to capture and store carbon in ocean sediment. They recently raised a $20M Series A to scale their work. 

Speaker bio:

Ori Shaashua is the co-founder of Gigablue and a serial technology entrepreneur, investor, and executive with a multi-sector track record across artificial intelligence, climate tech, cybersecurity, digital health, and smart mobility.

Five lessons for climate entrepreneurs:

• Build for the real bottleneck, not the obvious one – In carbon removal, the challenge wasn’t just capturing carbon; it was exporting it durably. Great founders identify the true constraint and design around it.
• Trust is part of the product – In a market that depends on verification, transparency, and public credibility, open methodology and measurable outcomes become strategic advantages.
• Use the business model buyers already understand – Gigablue borrowed contract structures from commodity and energy markets, making it easier for large buyers to transact with confidence.
• Scale requires timing, not just ambition – Ori emphasized that the market is moving from experimentation to consolidation, and that entering at the right stage can lower risk for both founders and buyers.
• Tie the mission to durable economics. – A climate solution has to make financial sense, not just scientific sense. The strongest ventures are built where impact and commercial viability reinforce each other.

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How do you turn degraded farmland into an investable climate asset? Living Carbon has raised $76M in equity and unlocked $500M in project finance by combining reforestation, biomass, and long-term infrastructure thinking.

Living Carbon restores degraded agricultural and mine lands through reforestation while developing biomass supply chains for industrial customers..

Maddie Hall is the co-founder and CEO of Living Carbon. Before launching the company, she worked at OpenAI and Y Combinator.

• How to unlock project finance for climate startups — Why demonstrating repeatable execution, securing blue-chip customers, and reducing underwriting risk enabled Living Carbon to raise $500M beyond traditional venture capital.

• Why degraded land beats pristine forests — How abandoned farmland and former mine sites create stronger economics, lower land costs, and higher carbon additionality while avoiding competition with food production.

• Building two businesses within one company — Why Living Carbon separates its carbon credit business from its biomass platform, generating multiple revenue streams without relying entirely on voluntary carbon markets.

• Ignoring carbon market hype — Why Maddie focuses on building a business that will still matter in 2030 instead of chasing today's policy changes, pricing swings, or investor excitement.

• Leadership lessons from scaling startups — Why founders should catastrophize less, become comfortable with rejection, stop optimizing for being liked, and build routines that support long-term resilience.

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Smart CEOs make bad decisions all the time. Often, the problem isn't intelligence; it's solving the wrong problem.

This minisode explores the Double Diamond framework, a decision-making tool that helps climate CEOs avoid premature conclusions and improve strategic choices.

• The first diamond: discover and define the problem — Many leaders jump straight into execution mode. The Double Diamond encourages CEOs to first expand their understanding of the challenge before narrowing it to the real problem worth solving.
• The second diamond: develop and deliver solutions — Once the problem is clearly defined, leaders generate multiple options, evaluate tradeoffs, and then commit to a solution.
• Why founders get trapped — Climate entrepreneurs are often rewarded for speed and action. That can create a tendency to lock onto the first plausible explanation or solution.
• Applications across climate tech — Hiring decisions, fundraising strategy, product-market fit, customer segmentation, project development, and market entry all benefit from spending more time in discovery.
• A practical question for CEOs — "Are we debating solutions before we've agreed on the actual problem?"

The core lesson: many costly mistakes occur because teams converge too quickly. The Double Diamond creates deliberate divergence before convergence, helping leaders avoid solving symptoms while missing root causes.

👉Get the written summary:

https://entrepreneursforimpact.substack.com/p/why-smart-climate-founders-still

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What if your home could cut electricity bills by 60%, survive weeks without the grid, and earn money while you sleep?

Lunar Energy is building an integrated home energy system combining solar, batteries, load controls, and AI-powered software.

Its GridShare platform already manages 650+ MW across 150,000 homes, including third-party hardware.

Founder and CEO Kunal Girotra previously led Tesla Energy from 2015 to 2020, helping bring Powerwall into residential energy storage.

He has since raised more than $230 million to build Lunar.

Here’s what we discussed:

• How to turn homes into distributed power plants — Why combining batteries, solar, controllable loads, and virtual power plants can lower bills, provide backup power, and create new grid revenue for homeowners.

• Why software matters more than battery hardware — How Lunar uses device-agnostic software to manage its own products and third-party equipment across 150,000 homes and 650+ MW of capacity.

• How AI can cut electricity costs by another 10–15% — Why localized, real-time optimization against changing import and export prices outperforms basic solar-plus-storage self-consumption.

• Why leasing is becoming the default for home batteries — How zero-down financing, tax-credit changes, and immediate monthly savings have pushed roughly 80% of Lunar customers toward leases.

• How to raise $230M for a climate hardware company — Why proving product-market fit, securing Sunrun as both an investor and distribution partner, and demonstrating resilience under adversity mattered more than ambitious promises.

--

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• Private CEO group for VC/PE-backed climate tech founders navigating capital, strategy, and scale. Capped at 45 CEOs.
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The skills that help climate tech founders survive the early years can become liabilities as companies scale.

This minisode explores the tension between founder mode and manager mode, and how CEOs can know when to optimize for speed versus systems.

• Founder mode creates momentum — Fast decisions, direct involvement, and relentless problem-solving are often essential in the earliest stages of a company.
• Manager mode creates scale — As teams grow, CEOs must shift from personally solving problems to building systems that solve problems repeatedly.
• The risk of staying in founder mode too long — Teams become dependent on the CEO, decision-making bottlenecks emerge, and organizational learning slows.
• The risk of switching too early — Excessive process, bureaucracy, and meetings can suffocate innovation before product-market fit is secure.
• A practical leadership question — Is this situation best served by speed and direct intervention, or by creating a repeatable system that works without you?

👉Get the written summary:

https://entrepreneursforimpact.substack.com/p/climate-urgency-is-distorting-ceo

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1️⃣ Join our confidential CEO community.

• Private CEO group for VC/PE-backed climate tech founders navigating capital, strategy, and scale. Capped at 45 CEOs.
• → entrepreneursforimpact.com

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• Climate tech finance, strategy, leadership. 2-min read.
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• If you got value, take 30 seconds and do the community a favor. It helps push more capital and talent toward scalable climate solutions.