Dries Buytaert

Solar panel, Boston

65%
Last update: ago
Battery: 65%

I have a solar-powered website at solar.dri.es (mirror). It runs on a Raspberry Pi with a solar panel on our roof deck.

Every 10 minutes, the Raspberry Pi updates this status page. This page is hosted separately, so if my solar-powered website goes offline due to an extended lack of sunlight, cold preventing the battery from recharging, or a system crash, you should be able to see that here.

Metric Status
Last update 2 min 26 sec ago
Day or night Night
Battery capacity 65%
Battery charging Not charging - no sunlight
Charge type Not charging
Outdoor temperature 0°C
Solar system uptime 236 days
Raspberry Pi uptime 18 days
CPU usage 9%
Memory usage 40%
Disk usage 3%
WiFi strength Good
Power source Stable

Hourly battery charge

March 26th March 25th March 24th March 23rd March 22nd March 21st March 20th March 19th March 18th March 17th March 16th March 15th March 14th March 13th 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

A green square means the battery is well-charged and can power the Raspberry Pi for several days. A red square indicates the battery charge is low and requires solar charging soon. A grey square means the Raspberry Pi was offline.

Daily battery levels

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2025-02-01 2025-02-06 2025-02-11 2025-02-16 2025-02-21 2025-02-26 2025-03-03 2025-03-08 2025-03-13 2025-03-18 2025-03-23

This graph displays the battery's highest (green solid line) and lowest (red dotted line) charge levels each day. It helps track trends and assess the risk of the Raspberry Pi shutting down due to insufficient sunlight or extreme temperatures, which prevent the battery from charging.