Alternatives to power home security system due to AC failure

ano said:
It isn't designed for long-term storage. You charge it up until the time you need it or at least in the last 24 hours when rates are low.
 
Right.  I was musing more along the lines of "How much current does it take to hold it at its average peak charge, assuming it's unloaded?"  Just curious that's all.  I wouldn't expect it to be much.
 
NeverDie said:
Right.  I was musing more along the lines of "How much current does it take to hold it at its average peak charge, assuming it's unloaded?"  Just curious that's all.  I wouldn't expect it to be much.
It uses Litium-ion batteries like you cell phone.  Self-discharge is 1%-2% per month.
 
I really want to use one of these. I don't have solar, but around here the local utility performed a "study" saying each solar customer costs them $116/month for use of the wires to get their solar power back to the utility.  In other words, the utility wants to charge each solar customer an added $116/month fee.  If I kept the power at my house, then there would be no reason to pay the outrageous fee. But I'm not sure they would last long in a hot environment.
 
Unrelating to security panel backup but relating to power sucking HVAC stuff...
 
Many years ago (80's) recall seeing a home that used undergound tubes to keep the temperatures passively cooled/warmed in the home.  It was almost like a swamp cooler methodology relying on the ambient cooler/warmer temperatures under ground.  Much of the living space was underground with very nice open space and glass on the above ground levels. 
 
Is this something still being toyed around with?
 
Read some media news last week about a guy that owned an energy company that was testing electric generating small wind turbines which made a lot of noise and the guy ended up in jail cuz the turbines were a bit noisy and he lived in a residential versus a farm area.
 
Another unrelated related thing is that my car key FOB lithium battery does get charged passively by the automobile voltage today (actually its some 15 year old technology these days on the oldest automobile) and my wife's built in RF does block her garage door opener from working some 50% of the time.
 
I mentioned a labor day weekend thing in another post where I found an interesting cemetary.  Exploring a bit we also found an interesting multi-story single residence home; ultramodern (completed in the 2000's) on a hill and it was all glass looking with many solar panels.  It was off some little country road adjacent to a few farms nearby.  Well too it was abandoned with the last owners expiring and now the home is an eyesore and nobody wants it.  Here is a picture of it.
 
pete_c said:
Many years ago (80's) recall seeing a home that used undergound tubes to keep the temperatures passively cooled/warmed in the home.  It was almost like a swamp cooler methodology relying on the ambient cooler/warmer temperatures under ground.
Like this?
390px-Solarchimney.svg.png
 
Yes.
 
Except that the home was built in to the side of a hill rather than on flat land.   I liked that the ambient underground temperature heated the home in the winter and cooled it in the summer.
 
Recalling too a trip to FL in the 1970's where I saw mostly swamp coolers used for cooling a home.
 
Here are the pictures of the home we saw.  Intesting in that we were just driving down some little country road and it caught my eye such that we stopped to look at it.
 
The eyesore knowledge came from a town museum curator that day after we had stopped by the home and asked the curator about it.  (it was the talk of the nearby town along with some old doll preserved by somebody found by accident that was saved by a soldier during the war there in the 1800's - it was an interesting little doll story and a wish to his daughter that survived his death).
 
glass-1.jpgglass-2.jpgglass-3.jpg
 
Mostly it looks like the town liked the old fashioned style archecture from the 1800's.  Here is a picture of a refurbished saw mill which was the very first one there.
 
sawmill.jpg
 
It was interesting that it was sort of initiated by a Jesuit explorer Priest from Canada (same as the cemetary with crosses with no names)  then the business side (money investors) of it came from Chicago in the 1800's.
 
Passive solar needs to be properly engineered. Failing to do so can be a disaster as you live in a house that is either way too hot, or too cold. But done properly, you can slash your heating/cooling bills by way over 50%. Heating and cooling is where most of our money goes with buildings. I find it amazing that most buildings completely ignore this, and put up south facing glass walls that become a building engineer's worse nightmare. This can easily be corrected with use of solar shading.
 
I would love to know more about the Tesla battery packs. Solar is the way to go. It simply does not make sense to not install as payback is relatively quick, especially in states that support it and give rebates. Either way, you still get the federal rebate.
 
Do the math fully and I think you will come to the conclusion it is almost impossible to save any money with the Telsa Wall lithium battery pack. The shear cost ofvthe beast is about ten times the price of a lead acid battery if you buy in quantities of 100 or more Tesla scams as a registered distributer.

If you are thinking of load usage time shifting it is not likely the difference in rates will ever pay the LOI on the initial cost. Losses on a charger, battery chemistry, inverter, and monitoring equipment consumption present a poor exergy factor. Battery storage has never been cheaper than grid energy and it likely never will be competitive with mass produced more efficient methods.

No, I don't work for a petroleum or energy giant and I am not conspiring to make your wallet bleed for my gain. I can do simple math and lack huhas after much experience with energy scams. :-)
 
gOOD points. I think where it pays for itself is if you can completely sever ties with the grid. The power company charges distribution and metering fees, shipping, handling, etc.... Plus there are usually hidden fees that no one ever seems to be able to explain when you ask about them. Some jurisdictions are looking to hit solar panel homes with additional fees.
 
We already have panels on our roof. But they have mini inverters. So we get straight 120v off the roof. Most panels are installed this way today since they act independently (if one panel goes down or becomes shaded, they don't all go down).
 
From what I saw, these batteries are DC and are suppose to be hooked up before the inverters. Not sure how that would be done.
 
Batteries would not likely be allowed with a system like that due to incentive programs. Utilities here won't pay you 80.3 cents/kWh for their own energy.
 
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