Dynamic ESS and the BST-GMT clock change - Cerbo did, VRM didn't!

Overnight the clocks changed here in the UK. At 2am, the clocks went back to GMT from BST.

On Octopus Agile, they published an additional two slots for 1am-1:30am -2am. My cerbo changed the time correctly.
VRM hasn’t tho. VRM did not make the clock change, nor did Dynamic ESS, meaning that VRM is an hour out of time with the Octopus prices. I’m glad I disabled it overnight. the additional Agile time slots were at a much higher price than any other overnight!

I know that the UK system for DESS is in Beta mode, and can’t fully handle the half hours yet, so this is a feedback and possible bug report for managing the time change BST-GMT and vice versa. Next chance to test this IRL will be in March 2025.

Image 1 - VRM vs Cerbo time.
Image 2 - Agile prices

1 Like

Further information - after changing pages in the VRM, and also Beta VRM and looking at graphs and such, it seems that the VRM clock shown on the web page is not refreshed although the data is, refreshing the page changed ALL the times on the page.
So it is not just the timeclock that was ‘stuck’ in BST, but also all the associated times shown on the graphs and price/times. I wish I had thought to screenshot those too!
Note that on the price graph it doesn’t show the additional 1am-2am hour, so there is an hour’s data missing. I wonder which hour it chooses to show - and it’s the more expensive one…which one would it have used?

This may be related. I don’t have ESS but today in the early hours the clocks changed. My generator start stop activates everyday at 2205. Today it activated at 2105 even thought the clocks on VRM and Cerbo clearly display 2105.
I wonder why it does this.