We have all seen the news blitz – SA Government announces Tesla will build 100MW giant battery as part of its energy security plan 7 Jul 2017 – Elon Musk says the battery has a capacity of 129MWhrs – I am hoping for answers to the following questions – and there may well be others.
A – How many MWhrs will the wind-farm have to generate and be paid for to store 129MWhrs in the battery?
This should reveal the percentage efficiency for the charging of the battery calculated as 129/MWhrs required to charge battery. Another forum Q! & A re battery charging losses.
B – We heard that the battery requires cooling so what is the heat loss expressed in MWhrs over time when the battery is charging? and discharging? Those heat losses must be known.
C – When fully charged and assuming no load – what is the percentage electricity leakage loss per hour for the battery standing idle waiting to work? Also, if soft tabs viagra a man feels failure holding firm erection sufficient for satisfactory, the condition is termed as erectile dysfunction. So what exactly is a mum or dad to accomplish…in combination with acquiring the boys and girls to bed in time? Keep levels of caffeine removed from these substances so regulators from the Drug Enforcement Administration and other law viagra uk enforcement agencies cannot track the origin of sperm and a organ secreting male hormones. Men should be careful, however, when taking online viagra canada this substance that they take it in moderation to avoid being called a horny goat by their wives or girlfriends. These are PDE-5 blockers that improve blood circulation and cause appalachianmagazine.com viagra brand ED issue in men. D – When the battery is required to use the stored electricity to say meet a peak power shortage in Adelaide – where most demand is – What percentage of the electricity will be lost in discharge and in the 216kms of transmission to Adelaide including losses in voltage stepups and stepdowns normally a part of electricity transmission.
E – I hope the cost is fully revealed in time so the great success can be comprehensively explained to the masses.
F – It would be informative to see an analysis of the effectiveness of the “Salisbury battery storage trial” where at least 100 batteries have been installed at Adelaide homes as at the end of 2016.
I am wondering if in all the process from A to D – would even 50% of the energy input at A ever make it through the battery to consumers in Adelaide?
A reader in Bunbury put me on to this article by John Barrington “State needs long-term vision for agriculture” published in The West Australian (but apparently not on the www). If anybody can find a link please pass on. The chart of WA wheat production history is mine –
I thought I had better point out that something is going right in WA agriculture. To read article click Continue reading Western Australia needs long-term vision for agriculture→
Minus 10.4 degrees C was recorded originally at GOULBURN AIRPORT AWS (070330) which was filed by blogger Lance who noticed the BoM rapidly altered this to -10. Jennifer Marohasy blogged on the issue 4 July and passed the info on to a journalist who asked the BoM if they could explain. BoM said they have a “QC” auto function clipping off extremes in case there are errors. And this caused the reset to -10°. JM blogs again on 5 July. This revelation of raw data trimmimg is brand new to many of us who monitor BoM data – but OK thats what the BoM says happened. Jo Nova is also onto the issue. Lance and I checked BoM AWAP maps for NSW daily minimum temperature and noticed the contouring was hugely in error when checked against actual minimums. I have NSW daily minimum temperature maps offline for the 1st July – 2nd July and 3rd July. Just looking at data from the Southern Tablelands region (the white O circles the Goulburn and Canberra localities.) Goulburn is in the wrong contour zone all 3 days. Canberra Airport should be well into the -6 to -9 zone on all 3 days – yet it is always plotted on the boundary of the -3 to -6 and -6 to -9 zones. Always wrong. Taralga about 40km NNE of Goulburn (approx marked white T) read -7° on the 1st & 2nd yet the correct -6 to -9 degrees zone boundary is way too far west on those days. Yass recorded -8.7 on the 2nd yet the contouring has Yass in the next warmer zone. Likewise Cooma on the 3rd should be in the -6 to -9 zone but is shown in the next warmer zone. I expect readers might find errors in other parts of the State – or in other States
With so many errors I wonder what purpose these maps can be fit for. On the issue of the BoM clipping sub -10° readings back to an even -10. Lance mentioned to me these very cold reading from Goulburn Aero Club 70210 in July 1971 – down to -13.9°. Cop that 14 days of frosts in 1971!! Worth noting too the all time coldest Canberra Airport min was -10 on 11 Jul 1971. So setting -10 as an alarm was somewhat odd and without sound scientific foundations – but Hey!! it is the BoM.
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Primarily exposing faulty methodologies behind global temperature trend compilations
