Serial entrepreneur building at the intersection of energy, AI, and the built environment.

I'm Josh Lake — builder, technologist, and lifelong optimist. From concentrated solar and shared electric vehicles to autonomous delivery robots and home electrification, I've spent nearly two decades starting companies at the frontier of climate technology. Now I'm building with AI.

Co-Founder, Elephant Energy Founder, Franklin Timber MIT '07 Eagle Scout
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From Pennsylvania pines to Colorado peaks.

Josh Lake skiing in Zermatt, Switzerland with the Matterhorn

I grew up in rural Pennsylvania surrounded by pine trees, cold creeks, and white-tailed deer. Hunting with my dad, fishing before sunrise, camping under stars that you could actually see. I earned my Eagle Scout before I turned 18 — an experience that taught me self-reliance, service, and a deep respect for the natural world that still drives everything I build.

MIT sharpened my mind. I studied Materials Science & Engineering, got pulled into the Institute for Soldier Nanotechnologies, co-founded my first company (Hemetrics, a biomedical diagnostics startup), and won the $1K Warmup Competition. I learned that the best way to understand something is to try to build it.

California ignited my ambition. I chased concentrated solar at Amonix in Seal Beach — world-record CPV modules deployed across the American Southwest. Then electric vehicles at Evercar, putting Nissan Leafs into the hands of rideshare drivers across LA. Then autonomous delivery at Nuro, where I was one of the earliest operations hires helping scale from a founding team to a real company.

Colorado became home. Rachael, Scout, and I put down roots in Boulder at the foot of the Rockies. I co-founded Elephant Energy to electrify everything — heat pumps, induction stoves, EV chargers — and spent five years building the team and technology that made it the easiest way to get off fossil fuels. Now I'm building again.

Across all of it, one thread connects everything: using technology to accelerate the energy transition and make the built environment smarter, cleaner, and more resilient. And wearing camo while doing it.

Josh Lake Eagle Scout ceremony, Pennsylvania
Josh Lake at Moraine Lake wearing MIT hoodie
Amonix CPV solar tracker in the Nevada desert
Josh Lake with Nuro autonomous delivery robot
Josh Lake at General Sherman tree, Sequoia National Park
Career Timeline
2026–
Founder
Franklin Timber
Building an AI-powered timber research and brokerage platform. Tools like Prospector, Sky, Owl, and Scout bring technology to one of the world's oldest industries.
2021–26
Co-Founder & CTO
Elephant Energy
Built a movement to electrify everything. Created the platform and team making it simple for homeowners to replace fossil fuel appliances with heat pumps, induction stoves, EV chargers, and smart panels. Colorado, Massachusetts, and Southern California. Series Seed from Building Ventures.
2018–21
Independent Consultant
Embark Trucks · NJ Resources · Squirrel Technologies
Advised autonomous trucking, utility-scale energy, and technology companies on operations, strategy, and scaling. Also founded Float Robotics and Newtility during this period — incorporated hardware and energy ventures that built prototypes and explored commercial viability.
2017–18
Head of Operations
Nuro
Early operations leader at the autonomous delivery robotics company. Helped build the foundation from founding team through early growth — fleet ops, logistics, local commerce partnerships. Nuro went on to raise over $2B and partner with Uber and Kroger.
2013–17
COO & Board Member
Evercar / Vision Fleet
Built operations for one of the first shared EV fleets for rideshare drivers. Pioneered EV-as-a-service in LA, SF, and Indianapolis. Nissan Leafs rented hourly to Uber and Lyft drivers — $5/hour, all-inclusive.
2010–13
Sr. Program Manager
Amonix
Concentrated photovoltaic solar in Seal Beach, CA. Managed utility-scale deployments across the Southwest. Amonix set world records for solar module efficiency (34.9%) verified by NREL. Backed by Kleiner Perkins and Goldman Sachs.
2011–12
Certificate
Stanford University
Mechanical Engineering — Design for Customer Value & Market Success.
2009–10
Co-Founder & COO
532 Solar
Solar project development. My first step into clean energy — right out of strategy consulting. Named for the wavelength of green light (532nm).
2007–09
Business Analyst
Altman Vilandrie & Company
Telecom and technology strategy consulting in Boston. Learned to think analytically about markets, then decided I'd rather build in them.
2003–07
B.S. Materials Science & Engineering
Massachusetts Institute of Technology
J&J Excellence in Biomedical Engineering Award. $1K Warmup Competition winner. Three-time Soldier Design Competition finalist. Research at ISN and Sandia National Laboratories. Co-founded Hemetrics (biomedical diagnostics) and Sensornet (sensor networks) — both incorporated, funded, and built functional hardware prototypes with patents filed.

Companies, explorations, and the ideas I couldn't let go of.

AI & Timber2026–Present

Franklin Timber

An AI-powered timber research and brokerage platform. Building tools like Prospector, Sky, Owl, and Scout to bring intelligence and transparency to one of the world's oldest and most opaque industries.

Home Electrification2021–2026

Elephant Energy

Co-founded and served as CTO. Built the platform and team making it easy for homeowners to ditch fossil fuel appliances for heat pumps, induction stoves, and EV chargers. Three states. Series Seed from Building Ventures.

Electric Vehicles2013–2017

Evercar / Vision Fleet

COO & Board Member. Built operations for one of the first shared EV fleets for rideshare drivers. Pioneered EV-as-a-service in LA, SF, and Indianapolis. Backed by Vision Ridge Partners.

Solar Development2009–2010

532 Solar

Co-founded a solar project development company. My first step into clean energy — straight from strategy consulting. Named for the wavelength of green light (532nm).

Hardware Startups — Incorporated, Funded, Prototyped

Three incorporated companies that received initial funding. All were hardware ventures — we built real functional prototypes, filed patents, and explored commercial viability. None went to market, but each one sharpened the instincts that shaped what came next.

Autonomous Robotics
Float Robotics
Incorporated and funded. Built functional autonomous robotics prototypes for specific commercial applications. Filed patents. Explored viability but the market timing wasn't right. Had nothing to do with the ocean.
Biomedical
Hemetrics
First startup, co-founded at MIT. Incorporated and funded. Built working biomedical diagnostics prototypes and filed patents. Spun out of research that earned the J&J Biomedical Engineering Award.
Sensor Networks
Sensornet
Incorporated and funded. Built functional prototypes for connected sensor networks in built environment applications. Filed patents. Hardware-first approach to building intelligence.
Earlier Explorations

Not everything becomes a company. These were earlier-stage explorations — investigating markets and models before committing fully.

Logistics
Hub Logistics
Investigated hub-and-spoke logistics models. Explored viability before moving on to other opportunities.
Energy
Newtility
New utility concept. Explored alternative models for residential energy services. The thinking here led directly to Elephant Energy.
Also worked with
AmonixNuroEmbark TrucksNJ ResourcesSquirrel TechnologiesAltman Vilandrie & CoSandia National Laboratories

The future is electric, intelligent, and abundant.

01

Electrify Everything

Every fossil fuel appliance in every building will be replaced by an electric one. Heat pumps, induction stoves, EV chargers, smart panels — this is the largest market transformation since the internet. The companies that make this transition simple and affordable will define the next era of home services. I built Elephant Energy on this conviction and I still believe we're in the first inning.

02

AI Changes Everything — Again

We're living through the most significant technology shift since electricity itself. AI agents won't just assist workers — they'll create entirely new business models with near-zero marginal cost. The companies that understand this will build with 10 people what used to require 100. I'm building every new venture AI-first, not AI-added.

03

Zero Marginal Cost Is Real

Jeremy Rifkin was right. Solar, wind, batteries, and now AI are all riding exponential cost curves toward zero marginal cost. This isn't utopian dreaming — it's already happening. The question is how fast we can rewire our institutions to match the physics. Peter Diamandis calls this the age of abundance. I agree with him.

04

The Built Environment Is the Battleground

Buildings account for 40% of US emissions. The energy transition isn't just about the grid — it's about every furnace, water heater, and gas stove in every home. This is a building-by-building revolution, and it needs both technology and trust. The person who shows up at your door matters as much as the heat pump they install.

05

Build for the Long Game

The best companies I've been part of share a commitment to long-term thinking. Not quarterly returns. Not growth-at-all-costs. Real, durable value creation that compounds over decades. Whether it's earning your Eagle Scout, studying at MIT, or building a company — the pattern is the same: commit fully, build carefully, endure.

06

Technology Should Create Leverage for People

I don't believe in replacing people with technology. I believe in making every person 10x more effective. At Elephant Energy, we used AI to empower our Home Comfort Advisors, not replace them. The best technology makes humans better at being human — more creative, more connected, more impactful.

What I Read & Listen To

Books That Shaped My Thinking

  • Electrify — Saul Griffith
  • Reinventing Fire — Amory Lovins
  • The New Map — Daniel Yergin
  • Chip War — Chris Miller
  • The Zero Marginal Cost Society — Jeremy Rifkin
  • Abundance — Peter Diamandis
  • More From Less — Andrew McAfee
  • Blitzscaling — Reid Hoffman
  • Build — Tony Fadell
  • Cosmos — Carl Sagan
  • Loonshots — Safi Bahcall
  • Endurance — Alfred Lansing
  • The Toyota Way — Jeffrey Liker
  • The Box — Marc Levinson
  • Outlive — Peter Attia
  • Free to Choose — Milton Friedman
  • Railroader — Howard Green

Favorite Podcast

🎧 Moonshots — Peter Diamandis

Thinkers & Influences

  • Jeremy Rifkin — zero marginal cost economics
  • Peter Diamandis — abundance & moonshot thinking
  • Vaclav Smil — energy transitions
  • Saul Griffith — electrify everything
  • Tony Seba — technology disruption curves
  • Rewiring America — policy & deployment
The Shelf
Josh's bookshelf

Pine trees, powder days, camo, and cold beer.

I grew up in the woods of Pennsylvania — hunting, fishing, and camping shaped who I am long before technology did. I earned my Eagle Scout and still carry those values: preparedness, service, and building things that last.

Today, I live in Boulder, Colorado with Rachael and Scout. I ski aggressively — Zermatt with the Matterhorn in the background is the closest I've come to a religious experience. I chase performance and aesthetic goals in the gym, I run to think, and I read constantly. My bookshelf is embarrassingly heavy on energy policy and startup war stories.

I've owned a Tesla Model Y, a Jeep, and a Prius — which probably tells you everything about my range as a person. I love camo, craft beer, and building things with AI at midnight.

Favorite Places in the World

Glacier National Park — the wildest place in the lower 48
Lassen National Park — volcanic, empty, perfect
Zermatt, Switzerland — skiing with the Matterhorn
Boulder, Colorado — home base, forever
Rural Pennsylvania — where it all started
Seal Beach, California — the Amonix years
Pennsylvania RootsEagle ScoutMIT '07StanfordCaliforniaColoradoAggressive SkiingRunningReadingHunting & FishingCamoCraft BeerTesla Model YJeepPine TreesAI at MidnightRachael & Scout

Let's build something.

I'm always interested in conversations about climate technology, AI-first businesses, the energy transition, and building companies that matter. If you're working on something in these spaces — or want to — reach out.

LocationBoulder, Colorado
Current Focus

Building Franklin Timber — an AI-powered timber research and brokerage platform. Exploring solo AI-agent business opportunities in the electrification space. Open to advisory roles in climate tech, proptech, and AI.

Josh and Rachael Lake