Extracting Energy Data from Home Assistant

Thu, 09 Apr 2026 00:00:00 +0000

Couldn’t find a complete guide for this.

Run like so:

Using this as the timestamp string: %Y-%m-%dT%H:%M:00Z

Once downloaded, to find what id you should filter to (you might already know the entity name from Home Assistant):

cat export_counters.json |
 jq 'map(.id | select(contains("consumption")))'

In my case, the file is large, so it’s best to pre-process the file and filter it to just the target entities values:

cat export_counters.json |
 jq 'map(select(.id=="opower:xxx_energy_consumption")) | first | .values' > export_filtered_counters.json

Now you have your power data, ready to process!

Frugal on William Floyd