Dries Buytaert

Solar panel, Boston

64%
Last update: ago
Battery: 64%

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 34 sec ago
Day or night Day
Battery capacity 64%
Battery charging Charging - slowly
Charge type Boost charge
Outdoor temperature 6°C
Solar system uptime 256 days
Raspberry Pi uptime 39 days
CPU usage 10%
Memory usage 44%
Disk usage 4%
WiFi strength Good
Power source Stable

Hourly battery charge

April 15th April 14th April 13th April 12th April 11th April 10th April 9th April 8th April 7th April 6th April 5th April 4th April 3rd April 2nd 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% 2025-02-14 2025-02-20 2025-02-26 2025-03-04 2025-03-10 2025-03-16 2025-03-22 2025-03-28 2025-04-03 2025-04-09 2025-04-15

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.