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 5 min 35 sec ago
Day or night Day
Battery capacity 99%
Battery charging Charging - very slowly
Charge type Boost charge
Outdoor temperature 19°C
Solar system uptime 315 days
Raspberry Pi uptime 29 days
CPU usage 9%
Memory usage 45%
Disk usage 4%
WiFi strength Good
Power source Issues:

Hourly battery charge

June 13th June 12th June 11th June 10th June 9th June 8th June 7th June 6th June 5th June 4th June 3rd June 2nd June 1st May 31st 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% 2025-04-14 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.