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 1 min 26 sec ago
Day or night Day
Battery capacity 99%
Battery charging Charging - very slowly
Charge type Boost charge
Outdoor temperature 22°C
Solar system uptime 264 days
Raspberry Pi uptime 47 days
CPU usage 9%
Memory usage 43%
Disk usage 4%
WiFi strength Good
Power source Stable

Hourly battery charge

April 23rd April 22nd April 21st April 20th April 19th April 18th April 17th April 16th April 15th April 14th April 13th April 12th April 11th April 10th 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% 2025-02-22 2025-02-28 2025-03-06 2025-03-12 2025-03-18 2025-03-24 2025-03-30 2025-04-05 2025-04-11 2025-04-17 2025-04-23

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.