Dries Buytaert

Solar panel, Boston

99%
Last update: ago
Battery: 99%

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 days 13 hours ago
Day or night Day
Battery capacity 99%
Battery charging Not charging - battery at capacity
Charge type Not charging
Outdoor temperature 19°C
Solar system uptime 319 days
Raspberry Pi uptime 0 days
CPU usage 10%
Memory usage 49%
Disk usage 4%
WiFi strength Good
Power source Stable

Hourly battery charge

June 17th June 16th June 15th June 14th June 13th June 12th June 11th June 10th June 9th June 8th June 7th June 6th 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% 2025-04-20 2025-04-26 2025-05-02 2025-05-08 2025-05-14 2025-05-20 2025-05-26 2025-06-01 2025-06-07 2025-06-13

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.