Date: 14 April 2016. Power Used
Aboard Seaweed (Part III)
© janice142
This is
Part III, entitled
Power Used Aboard Seaweed.
I knew my refrigerator used a lot of juice aka
power. How much exactly was the question.
A Kill-O-Watt meter will tell you how much power your items consume. In
80 degree ambient temperature my reefer/freezer combination (the
smallest made, 3.1 cubic feet by
Haier) requires 60 amp hours in a 24
hour period.
|
P3 P4400
Kill A Watt Electricity Usage Monitor
I bought this unit to
determine exactly how much power my cheap a/c powered
refrigerator uses. It provides power and time. From that it
was easy to figure out amps I need to supply each day for my
life of decadence.
Using solar power I know I
need to generate 60 amps per day to run the reefer.
←Affiliate
link |
This was the least expensive
meter I could find. It has the
fewest features. I do not need complicated. The meter just needs to work.
Side Note: Online was far
less costly than in local stores which had the fancy ones.
Electrical gurus might want the information those provide. I
did not require more than the basics so opted for simple. J. |
I generate 150 amps per day with my solar panels. The
refrigerator/freezer uses 60 amp hours during 24 hours. That leaves
me a theoretical 90 amps for everything else.
|
Definition of "everything else" |
|
Item (time
and power required per hour) |
Daily Power
Required |
Item (hours
used) |
Daily Power
Required) |
Computer (12h
@ 15w) |
20A |
DVD player
(4h @ 24w) |
10A |
Microwave (30
min @ 700w) |
21A |
VHF Radio
(24h @ 5w) |
12A |
Anchor Light
(10h @ .3A) |
3A |
Depth Sounder
(24h @ 2.5w) |
6A |
As you can see, when I add in the refrigerator/freezer (60A) I'm
using about 130A per day for my life. The microwave estimate
included a couple of bowls of popcorn plus reheating, tea making,
etc.
I need to make at least
that much power daily to support my life of decadence.
Could I use less power?
Absolutely. Do I want to? Nope. This is my home. I intend to live
forever aboard Seaweed. Having the accoutrements of a comfortable
life means that will happen. Those that have to "rough it" long term
are often left unhappy.
I am woman, over fifty and
appreciate things like ice cubes in my tea. A refreshing cool
tangerine (Cuties or Halo brands preferred) right from the reefer is
such a treat on a warm afternoon. Having lived without those things
makes me appreciate them all the more.
Would I go back?
No. Make that HECK NO! Life is great aboard my Seaweed.
Yes I am spoiled. And grateful, blessed, fortunate and so happy to
be here.
It is wonderful on the water...
When starting out you do not need to have
Everything. What you do need
is a plan.
The plan for Seaweed included a
wind generator and
solar panels.
With the current solar panels (445 watts generating 150A per day) I
am set. Life for me is no different at anchor in a remote cove than
it would be when tied to a dock with a power cord. [Affiliate links
in blue]
Actually it is better at anchor.
The only neighbors are fish, birds and dolphin. There is a
simplicity of life at anchor. Days start when I wake up. One day
that might be at 0400 and the next it could be nearly noon. This
retirement thing is Awesome!
To get where I am at you are going
to have to buy some goodies though. You will need solar panels, a
solar controller (it puts the correct voltage of power into your
batteries) and an inverter. An inverter turns DC battery power
into the stuff used in houses: 120 volts of AC.
My second solar controller was a
MorningStar ProStar-30 amp.
About Solar Controllers:
They are rated for specific wattages. Originally with
my 75 watt panel I had a Morningstar10. It could have handled a 100
watt panel. The Morningstar30 shown above would work fine for up to
300 watts. Later with the addition of the two newest panels I
upgraded to a MPPT60. It will support up to 600 watts of solar.
For further information on the
differences between the two types of controllers, the
Solar Regulators
(Standard vs. MPPT)
article would be worth a read.
Life is wonderful afloat. To keep up my standard of decadent living,
I need to generate just less than 150 amp hours per day. My solar
panels deliver that. The power is stored in my battery bank.
Please
Note: This is a multi-part series about power for your boat's
goodies. It encompasses solar power, batteries and inverters. Part
Four, is next:
Inverters Make AC Power.
The complete version with all the information contained in the four
articles is on this page:
Solar, Batteries and an Inverter,
the complete series.
How much power do you use each day aboard your boat?
What sort of charging systems do you use?
Regarding the Comments Section,
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