HOME POWERED ENTIRELY BY RENEWABLES

K

kriegsman

Jan 1, 1970
0
Until now I didn't, but in a few weeks I will.

I ordered 15,500 Wp of solarpanels including 6 grid-tied inverters.
On my roof (east + west) it will produce about 11,000 kWh each year.
I will supply the surplus into the grid. Temporary shortages will be
supplied by the net.
Over a year I produce my complete demand of electricity (including the
electricity for a future heat punp which can supply 100% of the heating
demand).
This all is only possible because it's strongly subsidised by the Dutch
government (until Octobre 16th 2003!!)
The complete solar system including inverters, mounting frames etc. costs me
around ? 7,000,- (a little over $ 8,000)!!
Nice or what?
 
Until now I didn't, but in a few weeks I will.

I ordered 15,500 Wp of solarpanels including 6 grid-tied inverters.
On my roof (east + west) it will produce about 11,000 kWh each year.
I will supply the surplus into the grid. Temporary shortages will be
supplied by the net.
Over a year I produce my complete demand of electricity (including the
electricity for a future heat punp which can supply 100% of the heating
demand).
This all is only possible because it's strongly subsidised by the Dutch
government (until Octobre 16th 2003!!)
The complete solar system including inverters, mounting frames etc. costs me
around ? 7,000,- (a little over $ 8,000)!!
Nice or what?
excellent. You are in Holland ? I am in London - about the same
Latitude. I lived in Utrecht for a year and Holland was about as sunny
as London but nicer. I am quite impressed you can do so much with the
solar power there. Can I ask you some questions ?

1) Do you know the solar flux for your area ?

2) You say your panels are East/West is South better ?

3) You can generate 11,000 kwH each year. Can I ask how much you
normally use in a month ?

4) "Temporary shortages will be supplied by the net."
What is the net ?

5) How much will the grid pay you per kwH ?

6) Who is responsible for maintaining the grid connection ?
 
K

kriegsman

Jan 1, 1970
0
excellent. You are in Holland ? I am in London - about the same
Latitude. I lived in Utrecht for a year and Holland was about as sunny
as London but nicer. I am quite impressed you can do so much with the
solar power there. Can I ask you some questions ?

1) Do you know the solar flux for your area ?
I don't know the solarflux, but I know that a south-facing roof (45°) will
produce about 800 kWh a year per kWp installed.
2) You say your panels are East/West is South better ?
South is better, but I only have east and west . Both sides produce about 80
% of a south facing area.
Take in mind that in Holland more than half of the solarenergy is from
diffuse sunlight and not from direct sunlight.
So the direction is less important in this case.
3) You can generate 11,000 kwH each year. Can I ask how much you
normally use in a month ?
Our electricity consumption is quite high. About two times the average in
Holland.
We use about 6400 kWh per year, while average is about 3200 kWh.
The rest I will be producing will be for the heat pump.
4) "Temporary shortages will be supplied by the net."
What is the net ?
Sorry, this is from Dutch. The Dutch word net, means the electricity-grid.
5) How much will the grid pay you per kwH ? about ? 0,11/kWh

6) Who is responsible for maintaining the grid connection ?
I don't know exactly what you mean by maintaining the grid connection.
I already have a grid-connection from the power company.
The only thing that's changing is that I get another kWh-meter which counts
in both directions.
 
N

norwee

Jan 1, 1970
0
i could not locate the geocities webpages. would you advise as to the
current url. i get a message saying yahoo could not locate the page
amiably,
norwee
 
John Doe said:
In Colorado you can do it for no capital outlay, no hassle, etc. The
grid provider is Xcel. You check off a box on the bill to select wind
power, pay about a 25% premium per kWh, and you are 100% renewable.
Very nice! All of the benefits of being on the grid (infinite
capacity, no equipment or mtce., etc.) without the hassles of most
off-grid solutions. The interest, maintenance, and depreciation costs
that you don't incur help to offset the 25% kWh premium.

While that's a nice theory, you will still get energy created by burning
coal or gas if they run out of capacity or can't sign enough contracts.
What they really promise is that they will try to buy or create enough
renewable energy to cover your that used by their customers. Shortfalls
will be suplemented by conventional power generation.

This is not a bad thing in itself, but be aware that if the company has
had 50% hydro for the last 30 years and 45% of their customers decide
that they want to pay %25 more for "renewable energy".... they won't
have to change a thing they are doing. Well, they will have to change
your bill, but that's all.

This is not to say that you should not give your business to companies
that create green energy. You should simply make sure that it's more
than a marketing scheme.


Daniel
 
D

daestrom

Jan 1, 1970
0
Gigawatt said:
I think he was saying that if the US spent the equivalent of the cost of
four Nuclear Power Plants on utilizing wind energy instead, then the US
could have solved all its future energy problem, and the power wind energy
produced would be not only be clean, but would cost very little.... maybe
to little to bill.....

LOL 'maybe to little to bill....' translates to "too cheap to meter".
Now, were have we heard that before??? And please note that the price for
four nucs doesn't begin to scratch the surface. It may build wind energy
plants with the same *capacity*, but those wind plants won't produce the
same *energy*. There is a difference between *capacity* and *production*.
Average wind plant only operates at ~25% capacity factor. So you need four
times the capacity to get the same *energy*. Then you need a few $B to get
it from producer to consumer.

this low cost made it difficult for government to tax
the cheaply produced wind energy, so government decided to back the
construction of Nuclear Power Plants, instead....

The idea that the government would conspire to block cheap electricity just
so it can tax it is ridiculous. The gov't can easily tax by the kWhr,
always have. The underlying cost of electricity has little to do with the
government's ability to tax it (or anything else for that matter).
Cigarettes in NY is a perfect example. The taxes are more than twice the
actual cost of the product.

But the OP *DOES* make a good point about not paying 25% more for renewables
from a utility. Better to save the difference and invest it yourself in
energy conservation and self-reliance. Another good investment for those
concerned about the environment is *education*. If more folks knew the
difference between kW and kWhr, capacity and capacity factor, and energy in
general, we would all be better off.

daestrom
 
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