@billt @NSS I have started this new topic In response to a discussion going off-topic about the prospects for there being a step-by-step guide to constructing a DIY solar PV diverter suitable for almost any skill level, using off-the-shelf modules.   In trying to think up a design I concluded that if  there was a plug-in Tuya style SSR with low-latency, zero-crossing switching packaged with a 13A three-pin outlet (yes I know the 13A problem here but hold on...*) then anyone who can put