Wasabi,
Check you state regulations on selling power back to the utility. Some
states require the utility to buy surplus power and some don't. Course
I would not be suprised that the regulations don't specify the price that
the power company would purchase. So the utility would buy at whole
sale prices and sell it back to you at retail..... /w3tcompact/icons/frown.gif
My understanding is that NC does not have a buy back requirement at
all. Which is really lousy.
I'm designing a passive solar house with some active components but
no power generation. NC has a solar house that is affiliated with
NCSU and I just happened to get a brochure about a class they are
having at the end of the month on designing a solar house. The
class covers roofs, windows, foundations, as well as power generation.
Though they don't mention hydro power.
So check with you local state organizations or universities. They can
be a heck of a resource.
On the other hand some of the "greens" are just plain financial
zeros. Some of the "green" energy ideas just don't make sense
money. One solar house design we studied looked very energy
efficent. The problem with the design was that the house had
to be built on three floors. For most models each floor had two
major rooms built around a stair case so you had to live on at
least two floors if not all three. Our current house design
is slowly inching to 3,000 square feet. To get the same living
space with this solar house we would have had to go to a
model that was at least 4,000 if not 6,000 square feet.
If you took a low ball price, say $70 per foot, not realistic
at all, and because of the design had to have an extra 1,000
square feet, the house was costing an extra 70 grand! /w3tcompact/icons/frown.gif
Now this house had wood heat but that was it. Supposedly
it would heat and cool itself without power. But 70 Grand buys
a heck of a lot of expensive power.....
Now that is a real wacky example but we know of a house
in our county that was just built with this design. Its how
we found our builder. But I have a more realistic example. /w3tcompact/icons/smile.gif
A more conventional solar house design has one room as a
heating space. Usually the room is dedicated to just heating
in the winter. If one builds the room like this and say the room
is 180 square feet at $70 per square foot that works out to
12,600 dollars. That room costs $420 per year, $35 per month
over 30 years. And that does not include how much you pay
in interest. I can buy alot of power for $35 per month.
We are hoping that our design does not "waste" a room like
some "conventional" solar designs.
But it does not sound like you are even going in this direction. I
just could not resist mouthing off. /w3tcompact/icons/smile.gif BUT, if I had the water
source and head that you have I would be seriously looking into
hydro power. I'm jealous! /w3tcompact/icons/smile.gif
Start checking your state's web site and see what info and regulations
they have on hydro power. The state can be an awsome resource.
Later...
Dan McCarty