Willie via EV wrote:
Hmm... If you're on good terms with your neighbor, you could run a
wire between houses and sell your excess power to him in the summer,
and he could reimburse you in the winter.
That highlights a problem I have long considered but not found a viable
solution to. I have one meter where my excess production is worth
$.03/kwh and another where it is worth $.06. Unfortunately, the
separation is about 1/3 mile. I would love to have the $.03 energy
available to use (or sell) on my $.06 meter. A neighbor suggested a
pair of high voltage transformers but I doubt the practicality. And I
doubt I could afford the wire size necessary to do a few kw over that
distance. My $.03 production is limited by my utility to about 15kw by
the utility's transformer.
1/3 mile is not too bad. It would certainly be possible to run your own
power line for that distance, as long as it's all on your own property.
Transformers above 1 KW are over 95% efficient, and high voltage can cut
your wire losses to 1-2%.
But the economics are another matter. If you have to buy the wire,
transformers, and supplies new, and pay someone to install it all, I
doubt it would ever reach payback.
[Mad thought... Maybe Tesla's broadcasted power idea will make a
comeback. We know how to wirelessly broadcast power for limited
distances at not-too-terrible efficiencies. Given that solar power is
"free", imagine a subdivision where every home has PV, and either
broadcasts or receives to share power with their neighbors. No grid!
I'll bet the utility regulations weren't written to exclude selling
power when there are no physical ties!]
Lee
--
All children are born engineers. Watch them at play. They're not
just playing; they're experimenting, building and learning. That's
engineering! Then we get them in school and squash it out of them.
(Geoffrey Orsak, Southern Methodist University dean of engineering)
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
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