Pv + micro-inverters = heat DHW ...
published: 16/07/18, 15:48
Hello,
Yes ..... I know, it is not very standard to heat water with PV, but, I am in isolated site, with some panels (1,5 Kwc), and I have a very small cumulus (30 L). In short, currently I gently warm my cumulus with my prod. from panels (via batterries, and via programmable switch, so that during the day). Precision, in order to stretch the heating time, I converted, before the cumulus the 230 V into 115 V, which allows me to draw 4 times less power in an instant T. Well, all this works really well, but today, I would like to disconnect the heating cumulus batterries, putting for example 2 PV connected to micro-inverters themselves connected directly to the transformer. 230 / 115 V.
My question: is it better to do
A) PV + micro inverters 230 V + transformer 230 / 115 V + cumulus ECS
Ou
B) PV + micro inverters 115 V + cumulus ECS
Easy, no ????
Thanks in advance !!!!
Yes ..... I know, it is not very standard to heat water with PV, but, I am in isolated site, with some panels (1,5 Kwc), and I have a very small cumulus (30 L). In short, currently I gently warm my cumulus with my prod. from panels (via batterries, and via programmable switch, so that during the day). Precision, in order to stretch the heating time, I converted, before the cumulus the 230 V into 115 V, which allows me to draw 4 times less power in an instant T. Well, all this works really well, but today, I would like to disconnect the heating cumulus batterries, putting for example 2 PV connected to micro-inverters themselves connected directly to the transformer. 230 / 115 V.
My question: is it better to do
A) PV + micro inverters 230 V + transformer 230 / 115 V + cumulus ECS
Ou
B) PV + micro inverters 115 V + cumulus ECS
Easy, no ????
Thanks in advance !!!!