I'm installing a 2kw solar array on my garage roof; I won't be getting FIT or have a battery, so I'm looking at making the most it.
I was planning on putting a diverter in place so that the immersion heater in our hot water tank kicks in when there is a suitable surplus. You can get 1kw immersion heaters for exactly this purpose, but I figure at 2kw max output and a passive house load of maybe 400w, that's not going to kick in enough to make it worthwhile.
If I could get a 500w (or 750w at a push), I think it would be ok. There doesn't seem to be any demand for this, at least I can't find anything sub 1kw. I wondered if anyone knew if they existed before I scrap the plan.
Cheers!
I was planning on putting a diverter in place so that the immersion heater in our hot water tank kicks in when there is a suitable surplus. You can get 1kw immersion heaters for exactly this purpose, but I figure at 2kw max output and a passive house load of maybe 400w, that's not going to kick in enough to make it worthwhile.
If I could get a 500w (or 750w at a push), I think it would be ok. There doesn't seem to be any demand for this, at least I can't find anything sub 1kw. I wondered if anyone knew if they existed before I scrap the plan.
Cheers!