Re: Wind Solar unreliable compared to Gas Coal Nuclear

Scout wrote:

> 
> 
> "cshenk" <[email protected]> wrote in message
> news:[email protected]...
> > Dechucka wrote:
> > 
> > > On 28/09/2021 7:12 am, Just Wondering wrote:
> >>> On 9/27/2021 2:15 PM, Dechucka wrote:
> >>> > On 28/09/2021 5:57 am, contact wrote:
> >>> > > When the wind stops blowing, the electricity stops flowing!
> >>> >
> >>> > Interesting my house is totally solar and I have power at night.
> >>> > Go  figure
> > > > 
> >>> We all figure that either "my house is totally solar" or "I have
> >>> power at night" is a lie, because they can't both be true.
> > > 
> > > That is the reality. Come on have a think about how this reality
> > > is achieved.
> > 
> > Easy, big backup power
> 
> Ok.. and how much are you going to spend on getting and maintaining
> such a system?
> 
> How large will it need to be to charge your EV each day as well?
> 
> So now you're effectively paying twice as much for electricity.. what
> was the benefit again?

Easy Scout! I said that was the answer to the setup parameters of the
question.  You change it here to a 'bang for the buck' problem but the
2 are distinctly different problems.

If you want to change to 'best bang for the buck with profits soon',
then you have to add in local factors and cost analysis.  I'm game but
don't try to swap back and forth between them ok?

Simple answer to 'bang for the buck' with or without home battery
system is 'rarely worth it unless thinking small'.  If the grid power
after sundown is 'peak hourly rate', a smaller battery of 4-6kWh may
pay off as in theory, you'll now only draw from the grid at the lowest
rate.  Check your company though as some charge lowest rate it you meet
or exceed a set amount of solar production vs use.  I don't have much
detail on that other than my grid power costs more from 4pm-9pm and I
pay that.

To cover a week's backup power, you have to overgenerate to your usage
and then the battery costs will normally equal the cost of the panels.
This doubles your 'payoff to profit time'.  For most people, this is
where solar 'fails' the budget model.  Without the battery, or a small
one to deal with minor nuisance outages, it may work.  Small ones only
cover a few hours.  Layman's terms: You get what you pay for but best
not buy more than you need.