Octopus Energy — today's usage
Read near-real-time electricity data from an Octopus Home Mini via GraphQL.
MPAN is optional and is only used to verify the selected meter.
Meter serial numbers may contain letters; enter them exactly as shown
on the meter/account. The page discovers the Home Mini device ID from
your electricity meter and then queries Octopus's
smartMeterTelemetry data.
The API key is kept only in this page's memory and sent directly to Octopus.
Do not put your key into a hosted/public HTML file.
Mini telemetry can be rate-limited; the page uses one-minute grouping
for history and a single request per refresh. Solar export is estimated
from negative demand, integrated across actual telemetry timestamps.