Solar payback time justification

BUDFORCE said:
Without a battery possibly.

It vastly depends, if you got 3.4kw system, and didnt work from home, I reckon you'd only get about a third/quater of that of usuable electricity. That being said 3.4kw of solar panels would not be 10k, youd be looking at 5-6k (ish).

3.4kw system but say you and your partner both work from home, put the dishwasher on etc during the day, obviously now you are making more effecient use of that. Add a hot water diverter, and now maybe you are using half, or more. 3.4kw system with hot water diverter, even at say 35p per unit thats around £600 a year, now thats a 10 year payback. Also energy prices are only going to go up and that doesnt factor the saving on whatever you'd heat your hot water with otherwise (gas or heating oil) etc.

You see, how it can vastly depend on usage.

A battery changes the dynamics completely. Again, its not always the best option, it depends on circumstances and usage etc.
Click to expand...

Our Tenants are using 6kw per day more since the solar went down just over a month ago. (3.5kw system)
One of them at home with a young child 24/7.

That's 180kw per month more without solar, now at the soon to be 50p per unit = £90 a month saving.
Even if you're only saving half that in the Winter its still £45 less a month than you would be paying.

That mounts up to a big saving over the year.
 
Troop said:
Our Tenants are using 6kw per day more since the solar went down just over a month ago. (3.5kw system)
One of them at home with a young child 24/7.

That's 180kw per month more without solar, now at the soon to be 50p per unit = £90 a month saving.
Even if you're only saving half that in the Winter its still £45 less a month than you would be paying.

That mounts up to a big saving over the year.
Click to expand...
Why hasn't it been fixed?
 
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