[OpenTRV-interest] Question from Steve R

[Damon Hart-Davis]

> 
> I agree power is an issue in any event with any RF device though some are
> worse than others. I was assuming that anything would have to be hooked up to
> the mains as I didn't think that batteries would be viable

Our aim is to not need replacement within a heating season: 1Y on NiMH hybrids, 2Y on alkalines.

And indeed the longer-term aim is to move to energy harvesting and no batteries.  That is not happening on (secure WiFi) ever, that I can see.

Thds

Damon