Dries Buytaert

Solar panel, Boston

69%
Last update: ago
Battery: 69%

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 55 min 3 sec ago
Day or night Day
Battery capacity 69%
Battery charging Charging - very slowly
Charge type Boost charge
Outdoor temperature -3°C
Solar system uptime 198 days
Raspberry Pi uptime 9 days
CPU usage 0%
Memory usage 40%
Disk usage 3%
WiFi strength Moderate
Power source Stable

Hourly battery charge

February 16th February 15th February 14th February 13th February 12th February 11th February 10th February 9th February 8th February 7th February 6th February 5th February 4th February 3rd 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.

Daily battery levels

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2025-02-01 2025-02-03 2025-02-05 2025-02-07 2025-02-09 2025-02-11 2025-02-13 2025-02-15

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.