In this part of the work a 300W panel on a south facing roof with a 40 degree pitch will produce ~260kWh over the course of a full year. That's just 0.7kWh a day on average, enough to run a 3kW load for 15 minutes a day.
It really just does not sound at all viable to me.Solar panel ratings indicate their maximum potential output under ideal conditions. Think south of Spain, ideal conditions rarely exist in Ireland, and pretty much never exist when you want to power heaters.
In this part of the work a 300W panel on a south facing roof with a 40 degree pitch will produce ~260kWh over the course of a full year. That's just 0.7kWh a day on average, enough to run a 3kW load for 15 minutes a day.
That will be concentrated in the summer. Expect winter output to be as little as 20% of the output you'd get in summer.
They're for reducing overall consumption. The 3kW you're proposing is a very heavy load when you consider the average house here has a total electricity consumption in the order of 11.5kWh a day.So when you see solar panel kits with battery, inverter panel etc. for sale for a couple of hundred Euros...what are these for? Charging a phone? Powering a lamp?
I agree, I don't think such a system would pay for itself in its lifetime.It really just does not sound at all viable to me.
So when you see solar panel kits with battery, inverter, panel etc. for sale for a couple of hundred Euros...what are these for? Charging a phone? Powering a lamp?
Caravan, motorhome, running some lights in a remote shed...So when you see solar panel kits with battery, inverter, panel etc. for sale for a couple of hundred Euros...what are these for? Charging a phone? Powering a lamp?
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