This page shows the historical output of the solar panels on our roof. We’ve done this here partly because we like our solar panels, but mostly because it’s a nice way of illustrating a neat way of getting graphical data on a WordPress Website.
The data is downloaded from our inverter to a PC over Bluetooth and is then imported into an SQL server database by data import software written by us. Another in house program extracts the data in the format required to easily paste the monthly data into this page.
The graph is generated using the easychart widget. This is a neat widget that gets all of its date from the tag placed in the page text.