Jamestown, South Australia Grid Battery - How Long Can it Supply South Australia?

The 129MWh storage capacity Tesla battery in Jamestown, South Australia brought tears of joy to the eyes of the politically-correct, greenie retards. Just look at how they celebrate this. And here's more.

Little do they know, it's only good for topping up the electricity supply during times of peak demand. A battery can discharge quickly without preparation when needed. This battery is totally useless for coping with sizeable blackouts.

Let me explain some things so you will quickly know more than the Minister of Energy about electricity.  For our purposes we are interested in a unit of used electricity.  Household electricity is paid per kWh - kilowatt hour.  A kWh represents an amount of work done.  A watt is the rate of work made possible by the input of a certain amount of energy - a watt of electricity. Say your kettle is marked as 1,000W - one Kw.  If you boil that kettle continuously for one hour you will have used 1kWh of electricity.  A kWh is a unit of electricity used to make a certain amount of work possible, say cool your room for x minutes, light up a certain area for y hours, etc.  When it comes to mass consumption a kWh is too small a unit and 1,000 of them are lumped together to make a MWh (megawatt hour) and 1,000MWh are lumped together to make a GWh (gigawatt hour).  1,000kWh = 1MWh.  1,000MWh = 1GWh.
 
What does 129MWh mean? It means they can supply 129MWatts for an hour. As the battery's maximum discharge capacity is 100MWatt/Hr it means the battery can actually go on for about 75 minutes discharging at 100MWatts/hour.

You will find much of what's in the paragraph above on the linked-to pages. But you won't find what it actually means as the media monkeys don't understand numbers. They don't answer the question of how long can it supply electricity to how many people. I wanted to see how long it can supply Adelaide with electricity but I could not find Adelaide's electricity usage. My guess for Adelaide was less than 10 minutes. I did find this AEMO pdf document online. It gives the electricity usage for the whole of South Australia.

On page 18 you will see that in 2017-18 South Australia used 12,203 GWh. Giga is 1000 Mega. So, with minimal rounding, it comes out that South Australia used 33,433MWh/day, 1,393MWh/hour and 23MWh/minute in 2017-18. 23MW/h means 23MW delivered for an hour.  But they need that delivered per minute.  So, they need a supply of 1,380MW/h for business as usual.  The supply rate of the battery is not remotely up to that - it's only 100MW/h.  Immediately, it's going to hit the fan big-time.  Now say the supply rate can be upped to the required 1,380MW/h, how long can SA keep running?  That's easy, the battery capacity is 129MWh.  Per-minute they need 23MWh.   So, the battery can supply South Australia with less than 6 minutes worth of electricity.  But, as already shown, even these six minutes won't happen. Only a few islands of light will be able to last the six minutes. And these must be decided in advance.  Who will get the electricity and who won't?  That'll be the night the lights went out in South Australia. Those backwoods, southern yokels will be crying into their beer for their battery to save them, but it won't.

Adelaide has about 515,000 homes.  This battery can run 8,000 houses for 24 hours. That's 0.0155% of Adelaide's homes.

I wonder how many of the numerically and reality-challenged politicians in the various governments know this.  I would not be surprised if the answer is none.

This is typical of this world – the world is mostly populated by retards led by their noses by the arts-and-humanities monkeys in governments using the arts-and-humanities monkeys in the media to disseminate their propaganda to the great unwashed. All three these groups have but a tenuous hold on reality and don't understand our technical world. That's the world we live in – the hoi-polloi crying out to be deceived and the politicians and their flunkies, the politically-correct media people, are all too ready to oblige.