2kw PV - worthwhile?

thevilla

barnitto said:

I should add that peak load with either the washer or dryer during the day is just over 2kw

Most washers (and other devices) will peak at around 3kw for a period while heating water.  Are you averaging 2kw peak over too long a time or do you have a low peak washer (travel kettle style)?  Not trying to put anyone off but you should be aware you'll import at times.  There's always battery storage to smooth that if you have the money but probably not worth it for 2kw peak generation.

Later thought: I'd be inclined to replace the solar water with higher rated PV and a diverter if you're in the money.

Hexane

thevilla said:

barnitto said:

I should add that peak load with either the washer or dryer during the day is just over 2kw

Most washers (and other devices) will peak at around 3kw for a period while heating water.  

Later thought: I'd be inclined to replace the solar water with higher rated PV and a diverter if you're in the money.

Our dishwasher and washing machine both draw a maximum of just over 2kW. The tumble dryer does draw about 3kW, but I imagine a more expensive model might draw less (e.g. with a heat pump).

Not sure about the idea of replacing the solar thermal water heating. Such systems aren't particularly large so maybe there's just not much useable space to be had anyway. And I've not really looked into how their efficiency compares with modern solar PV, although it remains the case that solar PV has less moving parts and gives different benefits.