Hi @geoffers, just to let you know my situation ...
I am on an E7 tariff in Eastern region with 00:00-07:00 off-peak and 07:00-24:00 peak, meter is a Landis+Gyr E470 4-port with no ALCS circuit, off-peak appliances are on local timers.
My hours were changed to 00:30-07:30, 07:30-24:30 unbeknownst to me by an Energy Specialist on 18 November 2024, through the Registers TPR settings for my account. I found out in mid December that my switch times had changed when looking at my IHD. I downloaded the Bright / Glowmarkt 1/2 hour data and compared off-peak usage between several meter register reads (with known date/times) and the corresponding 1/2 hour data totals 00:00-07:00 and 00:30-07:30 back to 01 November 2024. I found that the total for 00:30-07:30 matched the R2 read data back to 20 Nov (I had to interpolate); prior to 20 Nov the 00:00-07:00 data matched R2. I had been charged peak rate for 00:00-00:30 from 20 November to 17 December when the switch times reverted due to the TPR register settings having been changed back on 15 December.
It took a meter technician booking manager to override the narrative of '2 hour tolerance' through an 'education' session of the two Energy Specialists involved.
Edit sorry ... "I found that the total for 00:30-07:30 matched the R2 read data back to 20 Nov (I had to interpolate); prior to 20 Nov the 00:00-07:00 data matched R2." replaces "I found that the total for 00:00-07:00 was higher than the R2 read data back to 20 Nov (I had to interpolate) and the 00:30-07:30 total matched R2; prior to 20 Nov the 00:00-07:00 data matched R2."
Last edited by doverboy; 3 Hours Ago at 08:51. Reason: Confused myself