mirror of
https://github.com/lrnselfreliance/wrolpi.git
synced 2026-10-25 18:40:06 -04:00
Create your own off-grid library
https://wrolpi.org
cc8afa5370
* Add a Solar calculator with offline NASA POWER data Estimates a solar array's typical-year production from a location and the panels; everything else has defaults under an optional "Fine-tune" section. The model works from 12 monthly averages: Klein's average day per month, the Erbs monthly diffuse fraction, Collares-Pereira & Rabl / Liu & Jordan hourly split, HDKR transposition for fixed, single-axis and dual-axis arrays, then PVWatts' ASHRAE incidence loss, SAPM cell temperature, DC power, system losses and optional inverter. "Best for the year" and "Best for winter" sweep the tilt. Sunlight, diffuse, albedo and temperature come from NASA POWER's 2001-2020 climatology on a 1 degree grid, packed into app/public/data (3.1 MB, ~1 MB gzipped) by scripts/build_solar_climatology.py and fetched only when the calculator opens. Users can replace it with their own monthly values. Every setting lives in the URL, with defaults left out, so the Share button shares the whole configuration. Against PVWatts v8 for a 1 kW fixed array: Phoenix +0.6%, Seattle +8.8%, Anchorage +8.0% annually; these are recorded as tests. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Open the Solar calculator from the map, pins and current location The map's right-click (or long-press) menu gains "Calculate Solar Performance", and each saved pin a sun button; both open the calculator at that location. A button beside Latitude fills in the browser's current location. Locations are rounded to 4 decimals, and longitudes from a map panned around the world are wrapped back to -180..180. The map removed lat/lon/z from the URL when it closed, even after navigating to another page, which stripped the calculator's location from its URL (and from links shared with the Share button). It now only cleans up while the URL is still a map page. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Add off-grid sizing to the Solar calculator A new "Off-grid sizing" tab sizes a battery system for the darkest month from a list of devices (watts x hours per day): - Battery bank for a number of days without sun, for LiFePO4 or lead-acid, at 12, 24 or 48 V. Outdoor lead-acid is enlarged for the cold; outdoor lithium warns against charging below 0 C. - Panels needed, from the worst month's DC production per kW at the chosen angle, with a button to apply the count. A PWM controller's loss (battery voltage over the panel's Vmp) raises the count. - Charge controller current, and the string voltage on the coldest morning against the controller's limit, since cold panels exceed their rated Voc. The coldest morning defaults to 25 C below the coldest monthly average. All inputs live in the URL like the rest of the calculator. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Bump wrolpi-help for the Solar calculator help page Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Credit NASA POWER as it asks, and say how the data was changed - The calculator gains a "Data attribution" link under the location with NASA POWER's requested acknowledgment, the data reference (Climatology API v2.10.0, downloaded 2026/10/04), the CC BY 4.0 license, and how WROLPi modified the data (rounded to one byte per value, temperature averaged into 1 degree cells, interpolated between cells), which CC BY 4.0 requires. - The build script writes the same text to solar-climatology.LICENSE.txt beside the data, with the API version taken from NASA's responses and the date the tiles were downloaded. A test keeps the page and file in step. - Bumps wrolpi-help for the updated attribution in the help page. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Solar: fix PWM sizing, Voc sign, unit switching and loading on review - PWM usable power now uses the string's voltage (Vmp x panels in series), delivers nothing when the charging voltage is at or above the string's Voc, and falls off between Vmp and Voc. The "too little voltage" warning covers PWM as well as MPPT. Previously two panels in series counted double, and a panel that could not charge a 48 V bank counted as fully usable. - A Voc temperature coefficient entered without its minus sign is treated as negative, in the math, the URL and the input, so the cold-morning check cannot be made too generous. - Switching Fahrenheit on or off converts the entered temperatures instead of reinterpreting them. - While the sunlight data downloads, the off-grid tab shows a loader rather than asking for a location, and holds the cold-morning verdict until the site's temperatures are known or one has been entered. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Solar: move the data attribution to the bottom of the page The full NASA POWER acknowledgment, license and changes now sit in a small "Data attribution" section at the end of the calculator, always visible, instead of behind a link under the location. The source line under the location points to it. Bumps wrolpi-help to match. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Solar: drop the data source line under the location The attribution at the bottom of the page is enough. The line under the location now only appears to report the data's state: loading, failed to load, or replaced by the user's own values. Bumps wrolpi-help for the refreshed screenshot. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
||
|---|---|---|
| .circleci | ||
| .github | ||
| .run | ||
| alembic | ||
| app | ||
| controller | ||
| debian-live-config | ||
| docker | ||
| etc | ||
| modules | ||
| pi-gen | ||
| release | ||
| scripts | ||
| test | ||
| wrolpi | ||
| .coveragerc | ||
| .dockerignore | ||
| .gitignore | ||
| .gitmodules | ||
| .gitpod.yml | ||
| .mcp.json.example | ||
| alembic.ini | ||
| conftest.py | ||
| demo_link.jpg | ||
| docker-compose.yml | ||
| help.sh | ||
| icon.ico | ||
| icon.png | ||
| INSTALL.md | ||
| install.sh | ||
| join_discord.png | ||
| LICENSE | ||
| main.py | ||
| pytest.ini | ||
| README.md | ||
| repair.sh | ||
| requirements.txt | ||
| test_all.sh | ||
| UPGRADE.md | ||
| upgrade.sh | ||
WROLPi
Create your own off-grid library.
WROLPi is a self-contained collection of software to help you survive the world Without Rule of Law.
WROLPi is intended to be run on a Raspberry Pi with an optional external drive attached. It serves up it's own Wi-Fi network so that any user with a laptop/tablet/phone can connect and use the library created by the maintainer.
Table of Contents
Features
- Videos
- Web Archives
- Maps
- Wikipedia
- File search
- eBooks (EPUB / PDFs)
- Wi-Fi Hotspot
- Universal search
- Food Inventory management
- One-Time pad generator, encrypter/decrypter
- Synchronizer/duplicator
- Food storage calculator
Module features matrix
| Module | View | Search | Download | Project |
|---|---|---|---|---|
| Videos | yes | yes | yes | yt-dlp |
| Web Archives | yes | yes | yes | Singlefile |
| Wikipedia | yes | yes | yes | Kiwix |
| eBooks | yes | yes | planned | EPUB/PDF |
| Map | yes | yes | yes | Protomaps |
| Podcasts/Audio | yes | planned | planned |
Demo
Download
Images are available at wrolpi.org
Try WROLPi!
You can try out WROLPi by running the docker containers.
- Install docker-ce and docker-compose
- Copy the latest WROLPi code.
git clone https://github.com/lrnselfreliance/wrolpi.git
- Change directory into the code base.
cd wrolpi
- Initialize git submodules
git submodule update --init
- Build the containers.
docker-compose build --parallel
- Create volumes.
docker volume create --name=openstreetmap-datadocker volume create --name=openstreetmap-rendered-tiles
- Initialize the database (SQLite in the media directory).
docker-compose run --rm api db upgrade
- Start the docker containers.
docker-compose up
- Browse to WROLPi.
More Docker documentation is available in docker/README.md
Install WROLPi
Full installation instructions are in INSTALL.md. Pick the option that matches your hardware:
- WROLPi Portable (Live USB) — boot a complete WROLPi from a USB stick on any x86 PC or laptop. Nothing is installed to the computer; the first boot creates a persistence partition on the USB so your library, database, and configuration survive reboots.
- Debian 12 — install WROLPi onto an x86 PC or laptop.
- Raspberry Pi — install WROLPi onto a Raspberry Pi with an external drive.
- Docker — run the WROLPi containers on an existing Linux host.
Charter
Guiding Principals
- Storage is cheaper than power.
- Two is one, one is none.
- Run silently.
- Primary, secondary, tertiary.
- Secure as a bookshelf in your home.
Physical properties
- A WROLPi instance should be capable of running with a minimal of hardware:
- Raspberry Pi
- SD card
- External USB hard drive
- Power supply and cables
- Wi-Fi USER device such as a phone, tablet, or laptop.
- A WROLPi instance should consume a minimal amount of electricity during WROL event. It is expected power will be scarce when WROLPi is needed most.
User expectations
- A WROLPi instance should be run and maintained by a person (MAINTAINER) with a moderate amount of Linux and Raspberry Pi experience. It is expected that they should be able to do this using only the documentation on their WROLPi.
Software properties and capabilities
- A WROLPi instance should be able to "factory-reset" itself without any outside services.
- WROLPi should function completely without any internet services.
- A user should have easy access to their data if WROLPi fails:
- For example, a user can watch their videos by navigating a short and intuitive directory structure and opening the video in their preferred video player.
- WROLPi should be self-documented. The UI should contain a tutorial for USERS as well as the MAINTAINER.
- If the UI isn't functional, the code should be documented such that a user can restore functionality.
- WROLPi should favor pre-processing, rather than processing during a WROL event. Such as re-encoding a video, or processing captions. This is to ensure that when a user adds content during non-WROL time, the processing for optimum performance is already done for a WROL event.
Join!
