Home Assistant’s ENGIE Belgium connection adds readings for capacity-tariff peaks. Households can see their highest fifteen-minute average power for the month, the energy used during that interval and its start and end times, alongside the most recent daily peak.
The readings refresh hourly. Early in a month, when ENGIE has not published a peak yet, they use the previous month’s value and identify it as a fallback. Daily peak history and the lower monthly peak that was replaced are also available as supporting details.