Memo for the record
This memo is to myself, mostly as a
reminder of about what the present electrical setup at the Hemlocks is. The intent is reporting what we have if the
public electricity goes down. Plus, how I imagine using my present solar backup
is also memo for the record recorded. Remember, the primary backup system is a
water turbine powered system, and it is doing OK after six months or so. We are
still in the tune up stage for that setup. The present summer drought has aggravated
things, too. Now I am setting up the solar back up to that, and again, this is what the
memo for the record is about.
And, again, the Hemlocks primary
electricity source today comes from TVA, and they still do pretty good, in my
humble opinion.
The backup setup basically uses a
100W mono-crystalline single solar panel connected to two deep cycle batteries
using an MRRP type solar controller.
This setup basically (and hopefully) best charges the batteries even
during poor solar days, like cloudy and rainy, plus using indirect sunlight. The initial intent is to power the 7.2 cu.ft.
freezer (to extend the shelf life of the food we eat), and the rechargers for
the eneloop rechargeable AA and AAA batteries. Now the layout for how to physically do this is
up for grabs (like where to locate all this stuff), since we are just in the initial setup and test stage. Right now,
most of all this is on the front porch.
For example, do I move the freezer into
another room closer to the inverter (to be hooked up), or just use a long
extension cord (with its own inherent electrical losses) to keep the freezer in
the kitchen, and see what happens. That is what testing is all about. There are
no books on this subject.
On a good day, can the solar panel
do enough to help power the freezer, even during the night time when all runs off of hooked up
battery power, or even during the day when hopefully it makes enough electrical
power to run the freezer when it is on, and recharge the batteries in the
interim when the freezer is off? By the
way, when the freezer is on (it's not on all the time), it draws around 92 to
102 watts, so it is close in this test.
And of course all the freezer waste
heat goes into the house, so I do get some warmth out of it all.
And I did have to use public
electricity to use my grinder to fit my 4 AWG wires to the fancy MRRP solar
controller and battery stuff. God bless TVA.
Last, I personally think about use
it or lose it. So if I can get all to work together (primary and backups),
which I think I can, I can both use it, and even save some money in the
meantime. After all, there are two ways
to get better off financially speaking. One is to cut expenses, and the other
obvious one is to increase income.
Addendum to the memo for the record
The "load" will be the
inverter clamps placed on the battery terminals.
The solar controller load
connections will not be used in the initial setup.
The backup inverter (DC to AC) has
its own on/off switch. Also it should be
able to power the eneloop battery recharger, and the freezer.
The initial intent is to hook up a
surge protector strip to the inverter, and then plug in the eneloop battery recharger,
and the 7.2 cu.ft. freezer, both to the strip, which has its own on/off switch.
The intent of the freezer is to use it to extend the shelf life of the food in it.
It will be totally full.
The initial plan is to use the
battery recharger periodically during daylight hours, so one will have to
unplug this charger from the strip in most cases, most often the nighttime.
Right now I have two deep cycle 12V
batteries in parallel to power things during the night. One is brand new (like
will last until around 2020), and the other probably has two or three years of
life on it (like will last until around 2014 or later, hopefully).
Security will probably use a lot of
this rechargeable battery stuff.
Remember, this is a backup to my
backup. That's how important electricity is to me, and the security use of it.
If I can't keep the freezer working,
then I will use the already available plastic storage tubs to keep the mice
out, though shelf life will be reduced.
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