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Open Source Smart Meter with focus on privacy - you remain the master of your data.
PHP JavaScript Shell Python Perl6 HTML Other
Latest commit 570a832 May 28, 2016 @andig andig Merge pull request #441 from Saftwerk/patch-1
Allow negative costs

Join the chat at is a free smart meter implementation with focus on data privacy.

Build Status




From the shell:

wget --no-check-certificate
sudo bash

Or follow the detailed installation instructions at



Repository structure
 |_ etc/                    configuration files
 |_ htdocs/                 public web files
 |   |_ middleware.php      middleware
 |   \_ frontend            web ui
 |_ lib/                    middleware libraries
 \_ misc/
     |_ controller/
     |   |_ vzlogger/       command line tool to log meters/sensors
     |   \_ mbus/           a controller for mbus/messbus
     |_ docs/               documentation
     |_ frontend/           alternative frontends
     |_ graphics/           several graphics for docs, etc.
     |_ sql/                database schema dumps
     |   \_ demo/           demo data
     |_ tools/              scripts for imports, installation etc.
     \_ tests/              simple tests for middleware classes


Copyright © 2015
Licensed under the GNU Public License (

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