Energy Options > Solar Power

the Pareto principle and solar power

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creuzerm:
This concept is really resonating with me. That squared level just seems right.

I am in the process of buying some property and doing an addition on the house.  The addition I am thinking of wiring every other outlet for solar. There is no reason cell phone charging, alarm clocks,   led desk lamps,  TVs and so on shouldn't run on solar. 

Use white and ivory receptacles to tell the difference so I don't plug the vacuum into the solar.

Keep the kitchen and well off the solar and, there isn't really all that much power use.  Lots of phantom power use.

Power goes out,  you only need the generator for the well, fridge, deep freeze and Hvac. Now you aren't burning fuel all day,  just a few times a day for shorter periods.

Loving the concept!

Alan Georges:

--- Quote from: creuzerm on March 04, 2019, 10:07:53 PM ---Loving the concept!

--- End quote ---
Glad it's clicking for you, creuzerm.  Personally we're at the squared level here at the house, and it is an easy backup system for power outages.


--- Quote ---Use white and ivory receptacles to tell the difference so I don't plug the vacuum into the solar.

--- End quote ---
That's a good workable plan.  One gotcha to watch for is that common grid power sockets have one 120 VAC hot leg and one ground, but many affordable inverters have two 60 VAC legs wired in push-pull fashion.  From a power delivery point of view they're equivalent, but when there's a third-prong safety ground things get complicated.  Do your research before wiring this concept up.

creuzerm:
Good tip on the 60/60 voltage. I shall pay attention to that now that I am aware.

mountainmoma:

--- Quote from: creuzerm on March 04, 2019, 10:07:53 PM ---This concept is really resonating with me. That squared level just seems right.

I am in the process of buying some property and doing an addition on the house.  The addition I am thinking of wiring every other outlet for solar. There is no reason cell phone charging, alarm clocks,   led desk lamps,  TVs and so on shouldn't run on solar. 

Use white and ivory receptacles to tell the difference so I don't plug the vacuum into the solar.

Keep the kitchen and well off the solar and, there isn't really all that much power use.  Lots of phantom power use.

Power goes out,  you only need the generator for the well, fridge, deep freeze and Hvac. Now you aren't burning fuel all day,  just a few times a day for shorter periods.

Loving the concept!

--- End quote ---

I have solar and battery back up for power outages.  I guess you could wire that way, but another way is to just back up most or all of it and not use what you shouldn't.  I usually leave my fridge on backup power, but I can unplug it if I think we are going to be extensive.  The pressure pump for house water is on a backup circuit but  I actually ran out of power on the last 3 day outage we had ( this may not be the battery bank, it may be that I now have a rental unit also using water off of my batteries -- and I DID use the stereo alot, the full stereo system, playing records for many hours. Watched a movie or two...Was a good test of back up capacity I guess, and my batteries can be run all the way down with no degradation) anyways, I now as a default flip that pressure pump breaker off when the power is out, and calm down my recreational usages with this years storms !

Generally, when power is out, I run refrigerator ( it is a under 500kW/year refrigerator, I do not own or use a seperte freezer), lights(generally just one room at once, and all ceiling lights are LED) ( the way my house was already wired I get all ceiling lights except the downstairs bathroom), charging of laptop etc.... most house outlets are on the backup circuit, I use my electric kettle for hot water, the toaster, the breadmaker the handheld HAM, internet box ( for a while until their repeater runs out of juice), etc.. and I am now reminded to minimize the entertainment if it looks like it will be out for a while.  I can forgo most of those and by hand switch the wirenuts on a couple wires and have the actual well pump and not the pressure pump on battery, but that would be some emergency as I do have a 2500gallon water tank.  Anyway, I do agree that it makes life so much better to have some power.  I brought much appreciated (instant) coffee out to the workers clearing the power lines last month with that electric kettle.  I can deal with a cold, isolated day much better with some hot tea and toast while I get the fire going, it is nice to read at night.  And, much of this can be done with way less battery back up than my system.  As has been said here, a LED reading light, cell phone charging and small radio do not take much power and realy would make it alot better. 

Alan Georges:

--- Quote from: creuzerm on March 11, 2019, 09:41:07 AM ---Good tip on the 60/60 voltage. I shall pay attention to that now that I am aware.

--- End quote ---
Funny, but this same thing came up over at another thread over the weekend:
http://thesurvivalpodcast.com/forum/index.php?topic=63891.0
More details over there, including a link to a circuit drawing showing why this can lead to tears, but why it's usually safe.

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