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Joel Jean Profile
Joel Jean

@joeljean9

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Co-founder/CEO @SwiftSolarPV building the future of solar technology. Excited about all climate solutions.

Redwood City, CA
Joined March 2009
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@joeljean9
Joel Jean
1 year
1/ Today we’re announcing @SwiftSolarPV’s Series A! We raised $27M led by @eni Next and @Fontinalis_FP, with participation from a diverse group of new and existing investors @Stanford, @goodgrowthvc, @BlueScopeAus, @TobaCapital, @climatecap, and @jamesfickel, along with amazing
@SwiftSolarPV
Swift Solar
1 year
We’re excited to share that we raised a $27M Series A led by @eni Next and @Fontinalis_FP, with participation from @Stanford, @goodgrowthvc, @BlueScopeAus, @TobaCapital, @climatecap, @jamesfickel, @sytses, and @FEhrsam. We’re building next-gen perovskite tandem solar
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@joeljean9
Joel Jean
2 months
Something ominous about this
@kimmonismus
Chubby♨️
2 months
Walker S2 replacing it's own battery 24/7 blue-collar-worker within reach
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@willobri
will o’brien
3 months
Software creates soft men Soft men create hard times Hard times create hard men Hard men create hardware Hardware creates good times Good times creates software
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@joeljean9
Joel Jean
3 months
Excited to announce @SwiftSolarPV's partnership with @AmericanTowerUS to evaluate our perovskite solar technology for deployment across their 42,000 US communications sites. When Fortune 500 infrastructure leaders become both customers and investors, it validates the commercial
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@joeljean9
Joel Jean
3 months
This chart is insane. The power of 5 year plans
@JessePeltan
Jesse Peltan
3 months
The anti-solar mind virus has infected the GOP. There are still plenty of principled conservatives, but they’re being drowned out by ideologues and cronies. Look at this chart and tell me again how solar isn’t “real energy.”
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@joeljean9
Joel Jean
3 months
Have to say it again: Solar is the future of energy!
@elonmusk
Elon Musk
3 months
Solar is ~100% of energy long-term
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@joeljean9
Joel Jean
4 months
Is Veo supposed to mean Video without id (ie no primal instincts)?
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@Noahpinion
Noah Smith 🐇
4 months
Solar will win. It's physics.
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@joeljean9
Joel Jean
6 months
Solar is the future of energy
@MaxCRoser
Max Roser
6 months
In 2004, it took the world a year to add one gigawatt of solar power — now it takes a day.
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@joeljean9
Joel Jean
6 months
Thorlabs does this with Lab Snacks. But not grift or overpricing, just legendary (nerd) marketing and exploiting principal-agent! Grad students don’t have money to eat well, but do spend research dollars on optics. I can buy a $750 diode laser from Thorlabs, Newport, or Edmund.
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@moseskagan
Moses Kagan
6 months
Recently heard of a pretty devious grift in the student rentals space: - Landlord *way* over-prices student rentals - Landlord offer student-tenants kickbacks, in the form of gift cards - Student-tenants convince parents, who don't know the market, to pay the over-priced rents
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@joeljean9
Joel Jean
6 months
Another reminder that CO2 isn’t just about radiative forcing. It makes all of us a bit loopy! Wrote about this years ago:
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medium.com
I’ve been making myself stupid for the last 2 years without knowing it. You might be too.
@waitbutwhy
Tim Urban
6 months
I made the mistake of putting a CO2 meter in my office where I am all day and now I'm aware that I'm sitting in a cloud of CO2 all day losing IQ points. Even with the window open, the level is often 1300+. Anyone know of a way beyond ventilation to reduce a room's CO2?
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@joeljean9
Joel Jean
7 months
Hadn’t noticed until today but @Nature publishing peer reviews as part of the SI is super helpful for deeper understanding and context. Are many journals doing this now?
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@joeljean9
Joel Jean
7 months
Funny how some people see data like this and go welp I guess solar is solved, let’s go work on [random energy tech] to make more impact My friends this is the biggest lever, let’s make it even bigger. Let’s make solar better and cheaper. This is called climate leverage
@Noahpinion
Noah Smith 🐇
7 months
This is not a transition that Trump or anyone is going to stop.
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@joeljean9
Joel Jean
7 months
So true. Nuclear is pretty cool though
@burgersb
Scott Burger
7 months
The power market rn
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@joeljean9
Joel Jean
7 months
Some interesting advice from @pmthn for younger folks considering VC: “Relatedly, most (not all) VC jobs are destructive for young people early in their careers. People will laugh at your bad jokes and nod approvingly at your awful advice, which can destroy your self-awareness
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@joannejang
Joanne Jang
8 months
i find mishearing 'agents' as 'asians' way more entertaining "a swarm of asians working 24/7 while you sleep" "the future is asians" "you'll be able to deploy millions of asians in parallel"
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@crushed_silver
B, The Favorite Ex-GF ✨
8 months
Apple Watches are just Tomagotchi’s except the stupid animal you’re trying to keep alive is yourself
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@joeljean9
Joel Jean
9 months
I think people are done talking about immigration on here (haha) but I'll mention that 3 of my amazing world-class-scientist cofounders @SwiftSolarPV were on O-1/EB-2. Without reasonable (albeit annoying) immigration policy they would not be building the future of solar tech here
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@joeljean9
Joel Jean
9 months
An inspiring and heartwarming crypto story 🥲
@blader
Siqi Chen
9 months
i am in tears. unbelievably grateful to the community that made this possible. thank you, thank you, thank you. in addition to this $1M, we have also raised $250K in gofundme. yi and i are also donating another $100K from our personal funds on top to support the hankinson lab.
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@joeljean9
Joel Jean
9 months
Is anybody building this?
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@joeljean9
Joel Jean
9 months
Fun for avid readers
@sharifshameem
Sharif Shameem
9 months
I love how great Claude is at recommending me things to read. So great that I decided to make a lil vibes-based book search engine:
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