Life & fun · September 30, 2017
How to get 100% of your apartment's energy from a Personal Power Plant
Does the same job
all alternatives →- BABuild A Personal Power Plant for $2002017 · gridlesskits.com · ▲373
- 2S$200 Solar Self-Sufficiency Without Your Landlord Noticing2017 · medium.com · ▲491
- HTHow to build a DIY solar generator to run your fridge2018 · sunboxlabs.com · ▲9
- GYGrow your own with the Raspberry Pi2021 · github.com · ▲123
- WBWe built a Plug-in Home Battery for the 99.7% of us without Powerwalls2025 · pilaenergy.com · ▲301
Hi HN! I’m Cole Ashman, founder of Pila Energy. I’ve spent my career working on home energy systems—first as an engineer on Tesla’s Powerwall, where I focused on the Backup Gateway, Solar Inverter, and metering systems. More recently, I led Product at SPAN, where we built the Smart Electrical Panel and integrated with most major home solar, EV, and battery systems. Pila (https://pila.energy/) is a home battery that plugs into a standard wall outlet, provides smart backup power, energy shifting, and grid services. It’s more than a power bank—it’s a distributed energy system…
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Life & fun · 10d ago · louisabraham.github.io
Photosynthesis fires two of your iPhone
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Life & fun · 28d ago · solouno.io
Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 27d ago · everycube.alen.is
Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 27d ago · baselashraf81.github.io
Launched alongside, September 2017
the whole month →
Sublime Text 3.0▲1,274The long awaited version 3 of the popular code editor
Dev tools · 2017 · sublimetext.com
The definitive database of YC companies with all the metrics
Growth · 2017 · ycdb.co
