1.18.13 MQTT & Midnight
My Glow IHD (running 1.18.13) is not handling midnight correctly (we are current summer time BST).
When I look at the data being sent out via MQTT:
Import Today (sensor/electricitymeter/import/day) resets to zero at 1am, not midnight
I think this is a bug not a BST problem as Import This Week changes at midnight Monday morning. For me this week's Import this Week reset was strange:
23:53:02 - 127.9kWh
00:00:12 - 30.07
00:56:32 - 31.9
01:00:12 - 0
So it takes an hour to get to zero sitting at a random value and increasting on route!
Import this month is similar but different
23:51:10 - 174.8kWh
00:00:20 - 19.4
00:01:00 - 23
00:01:20 - 0
Unit Price (... /import/price/unitrate) has a different problem. My tariff changes 00:30 and 04:30, the unit price changes at 00:035:06 and 00:04:34:06 (00:35:13 and 04:35:13 yesterday) so its five minutes late.
(PS: Don't think I'm making the numbers up as our weekly usage last week was nearly the same as our monthly usage last month - we've been on holiday)
Comments
I realise that this is an old post, but think I am seeing the same problem. I don’t see any response to the post.
The problem is displaying itself in Homeassistant: I can see Smart Meter Electricity:Import (Today) in MQTT resetting to zero at 1am in history. The value displayed on the IHD is the same as the value published to MQTT.
This results in a mismatch between the electricity consumption shown in my Homeassistant energy dashboard which is based on Smart Meter Electricity: Import, calculated from midnight, and the consumption shown on my IHD.
Is this a known problem? My IHD firmware version is 1.9.1.
I believe that the smart meters always run on GMT - this is what I was told by our energy supplier. Certainly our Economy 7 off-peak rate is currently available from 01:30 BST to 08:30 BST (00:30-07:30 GMT) - this is confirmed by messages on the IHD.
I guess that Home Assistant needs to allow for this in the way that it processes the data so that the user sees 'actual' time of day.