This website runs on a solar powered server located in Barcelona, and will go off-line during longer periods of cloudy weather. This page shows live data relating to power supply, power demand, and energy storage.


The accessibility of this website depends on the weather in Barcelona, Spain.

Power supply

This is a forecast for the coming days, updated daily:

Power demand

These are live power statistics of the solar powered server:

(* load average per 15 minutes)

a detail of the solar powered server

First prototype of the solar powered server that runs the new website. The solar charge controller (on the right) is powering the server (on the left) through a USB-cable.

Battery meter

The background of this website is a battery meter, designed to always display the relationship of the energy powering the website and the visitor traffic consuming it. At the moment, we are running the website on a 24 Wh Li-Po battery (3.7 V, 6.6 A). That’s enough energy to run the site for 12 to 24 hours, depending on visitor traffic. We will add more energy storage as the days get shorter.