Earth Notes: On Website Technicals (2026-07)

Updated 2026-07-06 20:26 GMT.
By Damon Hart-Davis.
Tech updates: noon dump forward, preparing for winter...
tools 800w JA
Getting ready for the winter solstice in another 30°C+ heatwave...

: Export/Dump for Red Grid

In line with attempting to provide more (indirect) support to the grid when most useful (though tiny!) from the off-grid system, I have re-enabled 'E' dumping when the grid intensity is red (top quartile) alongside the cron-set grid-peak flag.

That GBGRIDPEAK.flag timing still looks good, around Z. Maybe it could start a little later.

#Ansible: 16WW: set /run/GBGRIDPEAK.flag in winter months
19 16 * 11-12,1-3 1-5 touch /run/GBGRIDPEAK.flag
#Ansible: 16WW: clear /run/GBGRIDPEAK.flag
39 18 * * * rm -f /run/GBGRIDPEAK.flag

: Tweaking Solar Noon Dumping

The time at which the last parts of heat/DHW storage can be filled by diversion has moved forward a little more, after inspection of June's grid export graph, to Z. The aim is a flatter smoother summer export curve, while continuing to reduce exports when other grid-connected solar generation is likely around maximum.

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