Danish?
NO!!!
Founded in the Bronx, New York ... by a Jewish couple. Original name was "Senator Frozen Products", But the pseudo-Danish sold better.
BWAHAHAHAHAHahahahahaha!!!!!!
Posted on 05/01/2015 12:33:33 AM PDT by goldstategop
Chief executive Elon Musk announced the firm would build batteries that store solar energy and serve as a back-up system for consumers during blackouts.
The device would allow consumers to get off a power grid or bring energy to remote areas that are not on a grid.
Tesla plans to start shipping the units to installers in the US by this summer.
In a highly anticipated event near Los Angeles, Mr Musk said the move could help change the "entire energy infrastructure of the world".
"Tesla Energy is a critical step in this mission to enable zero emission power generation," the company said in a statement.
The rechargeable lithium-ion battery unit would be built using the same batteries Tesla produces for its electric vehicles, analysts said.
The system is called Powerwall, and Tesla will sell the 7kwh unit for $3,000 (£1,954), while the 10kwh unit will retail for $3,500 to installers.
(Excerpt) Read more at bbc.com ...
Watt is the max output? Can it run an electric stove? Clothes dryer?
?????????
I’m charging each 470 amp-hours worth of Crown battery (about $400 for that much battery) with 280 watts of Kyocera module (nominal, about $550) before noon each day during most days. Granted, this is a sunnier area than most, and the charge controller is one of the best (about $300 worth of Midnite solar controller for the aforementioned clump of batteries and modules). Cabling, switches, etc., about $200 for that much system. Great inverter for that amount of system for a cabin or RV, about $600.
In many areas of the eastern states (say, 150 sun days), the number of modules would be doubled. Other areas, yet (75 sun days), tripled.
That’s not the size of my system, though. The figures above were only a modular chunk for rough estimates by anyone interested.
A good home inverter for a system about four times that size would run about four times as much (good system where water well pumping power is in a separate unit—generator, separate, small PV solar slow pump with cistern, etc.) and cost roughly $60 per month for replacing batteries and other components in time later on (not a bad electric bill).
But that’s for a self-install. The costs of a professionally installed and maintained system are outrageous. Technically inclined, properly licensed servants don’t come cheap.
The size of the system depends on what a family wants to run. Some folks might not be able to survive without an electric clothes dryer, for example, or an electric range (needing much more PV solar system). Some people don’t want to strain the muscles between their ears enough to build a good heating system without a forced air furnace. Some people can live large with an off-grid PV solar system. Others can’t stand it.
It’s all complicated, you know. ;-)
These days power outages that used to be a few hours last days.
maybe I got the metric wrong. A few weeks ago, I lived in a house which had a smart meter monitor, so I could watch from inside how much energy I’m using. Its for fridge/computer and light. Pretty sure what I saw was .300-500 KwH. Occasionaly when I turn on microwave, it will jump to 1kwH
Your units are wrong?
Half a kilowatt-hour would be possible with only a very efficient refrigerator (like a Sundanzer), moderate lighting (e.g., LED lighting) and laptop or other computer with low power consumption.
I noticed the last paragraph in the piece behind the link. Folks, don’t try air conditioning indoor space from a battery.
So, fresh from having (re)inventied the golf cart Musk is now (re)inventing the deep-cycle battery?
Hope they don't spontaneously erupt.
+
-— So, fresh from having (re)inventied the golf cart Musk is now (re)inventing the deep-cycle battery? -—
It helps to be born with an exotic name. Marketing isn’t everything, but it’s more than people think.
Piece of rope between two trees? Yeah, it'll run that.
A lithium-ion battery should be able to Las 10,000 cycles before having to be replaced. How many cycles can a lead battery go through and, after 10,000 cycles and battery replacements, which is cheaper?
I’ve heard diesel is better.
You are confusing energy and power. Power is the rate of energy consumption. Energy is power integrated over time. If you know how much power you were using at each instant during the day, then you can calculate how much energy you used that day.
One kilowatt hour is 1000 watts used for one hour. If your microwave uses 1000 watts, then, if you run it all day, it will contribute 24 kwh to your electric bill. On the other hand, if you use it five minutes, then it will account for only 0.083 kwh (1000 watts for 5/60ths of an hour).
Danish?
NO!!!
Founded in the Bronx, New York ... by a Jewish couple. Original name was "Senator Frozen Products", But the pseudo-Danish sold better.
BWAHAHAHAHAHahahahahaha!!!!!!
Tesla's battery probably helps. But then there's the question of how big a Tesla battery and how many square feet of solar cells and how big a windmill.
All of the off-grid solutions I've seen involve significant hammering on the demand side as well as pumping up the supply side.
I’d say they are great in warmer climates, considering their long life and reliability.
We own two diesels. Ours will not start unless the block heater is plugged in for a couple hours, where as a gas engine will likely take right off. Also we deal with two grades of fuel, #1 for winter which is too thin to properly lube the injector parts, and #2 which will gel in the winter. I ruined an injector on our Case tractor with #1, it stuck partially open and the engine knocked quite hard.
The oil well pumpers in our area used to use propane to run their Chevy or Ford pickups. Propane is so clean burning the oil always looked fresh and they got about twice the life out of the engines. Back then, in terms of engine life, the propane engines would last as long as the diesel.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.