Foundry (YC F24) is hiring staff-level product engineers (ycombinator.com)

1 points by lakabimanil 7h ago 0 comments

GoGoGrandparent (YC S16) Is Hiring Back End and Full-Stack Engineers

1 points by davidchl 12h ago 0 comments

Kyber (YC W23) is hiring enterprise account executives (ycombinator.com)

1 points by asontha 2d ago 0 comments

Converge (YC S23) well-capitalized New York startup seeks product developers (runconverge.com)

1 points by thomashlvt 4d ago 0 comments

Great Question (YC W21) Is Hiring a VP of Engineering (Remote) (ycombinator.com)

1 points by nedwin 5d ago 0 comments

Coverage Cat (YC S22) Is Hiring a Senior, Staff, or Principal Engineer (coveragecat.com)

1 points by botacode 6d ago 0 comments

Kaizen (YC X25) is hiring engineers to build browser agents that work (kaizenautomation.com)

1 points by michaelssilver 7d ago 0 comments

Infracost (YC W21) hiring first PM to shift $600B cloud spend to proactive (ycombinator.com)

1 points by akh 7d ago 0 comments

Sei (YC W22) Is Hiring a Full Stack Engineer in Chennai, India (ycombinator.com)

1 points by ramkumarvenkat 7d ago 0 comments

Artie (YC S23) Is Hiring Founding AEs (ycombinator.com)

1 points by j-cheong 8d ago 0 comments

Cedana (YC S23) Is Hiring a Systems Engineer (ycombinator.com)

1 points by neelm 8d ago 0 comments

CodeCrafters (YC S22) is hiring first Marketing Person (ycombinator.com)

1 points by sarupbanskota 9d ago 0 comments

PAX Markets (YC W25) is hiring a founding principal hardware (RTL) engineer (ycombinator.com)

1 points by etep 9d ago 0 comments

Sendblue (YC S23) is hiring senior engineers (ycombinator.com)

1 points by rhaber 9d ago 0 comments

Thunder Compute (YC S24) Is Hiring a C++ Systems Engineer (ycombinator.com)

1 points by cpeterson42 14d ago 0 comments

Optery (YC W22) Is Hiring in Engineering, Legal, Sales, Marketing (U.S., Latam) (optery.com)

1 points by beyondd 15d ago 0 comments

QuestDB (YC S20) Is Hiring a Technical Content Lead (questdb.com)

1 points by nhourcard 15d ago 0 comments

Depot (YC W23) Is Hiring a Technical Content Writer (Remote) (ycombinator.com)

1 points by jacobwg 15d ago 0 comments

Firebender (YC W24) Is Hiring (ycombinator.com)

1 points by kevo1ution 16d ago 0 comments

Better Auth (YC X25) Is Hiring (ycombinator.com)

1 points by bekacru 16d ago 0 comments

Kapa.ai (YC S23) is hiring a software engineers (EU remote) (ycombinator.com)

1 points by emil_sorensen 16d ago 0 comments

Spice Data (YC S19) Is Hiring a Product Associate (New Grad) (ycombinator.com)

1 points by richard_pepper 17d ago 0 comments

Extend (YC W23) is hiring engineers to build SOTA document processing (jobs.ashbyhq.com)

1 points by kbyatnal 17d ago 0 comments

Piramidal (YC W24) is hiring a full stack engineer (ycombinator.com)

1 points by dsacellarius 19d ago 0 comments

Mango Health (YC W24) Is Hiring (ycombinator.com)

1 points by zachgitt 20d ago 0 comments

Resolve (YC W15) Is Hiring an Operations and Billing Lead for Construction VR

1 points by ugolino91 20d ago 0 comments

Arva AI (YC S24) Is Hiring an AI Research Engineer (London, UK) (arva.ai)

1 points by OliverWales 20d ago 0 comments

Rejoy Health (YC W21) Is Hiring (ycombinator.com)

1 points by rituraj_rhealth 21d ago 0 comments

Weave (YC W25) is hiring an AI engineer (ycombinator.com)

1 points by adchurch 22d ago 0 comments

CoinTracker (YC W18) is hiring to solve crypto taxes and accounting (remote)

1 points by chanfest22 23d ago 0 comments

Crimson (YC X25) is hiring founding engineers in London (ycombinator.com)

1 points by markfeldner 23d ago 0 comments

Sand Batteries Are a Game Changer for Clean Energy

2 PaulHoule 2 8/7/2025, 7:04:00 PM oilprice.com ↗

Comments (2)

bell-cot · 5h ago

26 comments a couple months ago: https://news.ycombinator.com/item?id=44295132

178 comments 17 months ago: https://news.ycombinator.com/item?id=39698398

I recall a detailed US DOE(?) research study on the concept being linked from HN a couple-ish years ago...but my quick searches failed to find that.

bell-cot · 2h ago

Found it:

https://www.nrel.gov/docs/fy23osti/84728.pdf (DOE study)

https://news.ycombinator.com/item?id=39929842 (related HN discussion, 125 comments, 16 months ago)