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21
I do realize that some rural livers don't care about low CO2, or maybe even other pollutants, but I do. 

While your intentions are noble, I have to question their effectiveness.
A quick look up of arizona power supply shows it to be 10% renewable at best. The rest is Coal, Gas and Nuke generated in the majority.
With only a 2.7 Kw solar supply of your own, I'd suggest for the most part you are merely substituting one Fossil fuel source for another. I'd further tend to think if a primary goal was emissions, you'd be far better off with a Diesel Vehicle and running it on 100% renewable Veg oil.

You would have the advantage of a far greater range ( I carry extra Fuel in my 4WD and do a 2500KM trip once-twice a year using nothing but veg) Cost savings and be able to use the power you make from your solar in your home.
If you are electric dedicated, then Putting a LOT more panels on your roof would be very worthwhile.  You would generate probably 10-15 Kwh a day with what you have now and I can't see that going far in an electric vehicle.
Another option may be to charge the thing with a veg fuelled generator.

All this electric car thing is good and well but people really tick me off when they start talking about zero emissions. NO, there is noting coming out your tail pipe but the one a few hundred miles away has a 30 Ft round tail pipe and that where the emissions your Vehicle makes are emitted from. Either that or it's put into strongly sealed containers. and buried under mountains for future generations to try to figure out what the hell to do with it.

Electrics now have speed, range and fast charging.... for the time being.
There are not too many places in the world where the grid would be able to take Twice let alone maybe 50 times the load transfering all the IC Vehicles to electrics would impose.  This is the real problem with electrics.

Sure, Tesla is making ( broken) promises of how many model 3's they are going to be able to produce by the end of 2018 but I wonder how fast the grid is going to be able to keep up with them?  The thing of charging stations will be an issue as well.  If you compare how many vehicles a service station can refuel in an hour and how many cars can get through a charging station, there is a real problem there on several levels.
In busy times where there is a lot of traffic, It's hard to see how they are going to have enough space an charging stations to cater for the amount of people that want to recharge.

Sure, put a charging station in every parking bay at maccas so people can go in , grab a bit and a coffee and have a break while their car charges up.
I think I looked up before a tesla can suck down 120Kw at a charging station.  On 240V that's nearly 500A. A normal house connection here is 80A and it would be extremely rare to find a single place sucking down that much power.
Let say there are 20 Charging stations in the carpark, that's 2.4 Mw of power just at that site . How many other sites will that segment of the grid be feeding and further back, how many will be in the area supplied but the local sub and power stations?

Another thing that's not mentioned with charging time with teslas is they quote an hour. That's true if the thing isn't completely flat which we'll assume it is not and people leave a small reserve as one normally would with a petrol car.  You go to the supercharger and plug in next to the guy that just pulled up. The charger is current limited and you are only going to get 30Kw being the second car to plug in rather than the 120Kw which is the max charge rate. Because the guy beside was before you but still needs to do a full charge more or less, your recharge could take 2 hours not 1.  And that is if it's getting full power in the first place and the site isn't limited on it's max current draw because of all the other stations and the wiring at the power pole.

Thanks to the rush to remove Coal fired power stations and go renewable, we are facing severe power shortages here. It's not going to be a quick fix and I can easily see limits being put on EV's should they start becoming popular so as to stop Taking power away from homes, Businesses and places like hospitals, schools etc.

The problem now is not with EV's but will be how to in fact Fuel them.
Seems like the same old problem to me.


22
Solar / Re: Grid Tie, Oh My
« Last post by Mary B on December 11, 2017, 03:52:49 PM »
Drop bear is a tourist hoax LOL
23
Wind / Re: Once again in 3-part (phase) harmony
« Last post by Mary B on December 11, 2017, 03:46:32 PM »
You could bolt an angle iron bracket across the bottom of the plate. If it is the source of the vibration it would change the frequency. But I suspect you are hearing the tower legs vibrate. My house brackets Rohn 25 antenna tower makes a heck of a racket in high winds as it vibrates.
24
For JW and others regarding Ev's and house power. Google Jehu Garcia powerwall.

Also--https://motherboard.vice.com/en_us/article/kzz7zm/diy-powerwall-builders-are-using-recycled-laptop-batteries-to-power-their-homes

 I'm slowly converting Volt Battery modules for e-motorcycle and house power. Don't have the car for charging, so, I don't want to hijack this thread.
25
Wind / Re: Once again in 3-part (phase) harmony
« Last post by kitestrings on December 11, 2017, 07:45:23 AM »
Quote
That mast support is nothing like the sheet-metal plate pictured above.

That's right Spar, the lower plate is much heavier, sorry for the confusion.  It is the mid-plate that is my adapted use of the 25G R-AS25G.  I believe there is a resonant frequency ~110-115 rpm where this light gauge plate vibrates/buzzes.  A don't believe there is anything loose, but I certainly will be checking.

Quote
And nothing suggests and nobody specifically implied the vibration originated from the turbine.

Matt, I think the turbine is the source here, as it only does this when we get a bit above cut-in ~300 watts or so, and about 70V in/ 110 rpm.  I believe it is this clipping ripple discussed earlier, but I think the augmentation thru this plate can be mitigated.

~ks
26
Wind / Re: axial generator with lamination core
« Last post by mbouwer on December 11, 2017, 06:57:17 AM »
The composition mounted on a driven yaw bearing.
All this on the upper part of a polyester cladded lattice mast.
Now shaping the front magnet ring.
27
Solar / Re: Grid Tie, Oh My
« Last post by george65 on December 11, 2017, 02:59:48 AM »
Very boring here in France.

We have nothing.

You're Lucky!


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Except the Hunters hereabouts, who seem to spend most of their time surrounding small woods in the hope of getting Wild Boar, and end up shooting themselves.

Pigs are a problem here but more in the outback.  Once you get out a bit you can't drive down a highway without seeing them on the side of the road where they have been hit. Trucks survive, cars usually not so well off.  They can be 200Kg. That's like hitting a full drum of water at highway speed.

No shortage of them to shoot, you can see them running along the side of the road or standing in the middle of it at night. Don't have to try and surround them, make camp and at night they will suro0und you and come in looking for food. With the Dingos.  No problems finding a farmer to let you take out as many as you possibly can on his land. They are a huge pest. Kill the lambs, ruin fences and destroy Crops. Breed like Rabbits as well.

They tend to run but have certainly been known to attack when cornered or injured.

The Drop bears are the real threat here though. Not many people encounter them and live to tell the tale that's for sure!
We have man eating Crocs and sharks but the Drop bear is in a class of it's own.  People survive Crock and shark attacks, snake and spiderbites and everything else we have but it's a very rare thing to survive an encounter with a drop bear.

No where near as many of these around as crocks or snakes, sharks or anything else but what they lack in number they sure make up for with about a 99% Kill ratio.  Very rare to find in the suburbs unlike snakes or spiders and they won't come into populated area looking for food or water like other wild life but out in the bush particularly at night, watch out.

There is a place about 2 hours south of me in a national park that is known as a drop bear " hotspot" but they inhabit all the coastal bush areas from the north right down with Tasmania having the highest numbers of the things.
The northern areas of Tassie are often known for their untouched and massive world heritage bushland areas but a lot of people don't understand the real reason there is so little development in those places.

I spose one thing with the drop bears, where You could suffer an excruciating and terrifying end with a crock or a shark, At least with a drop bear it's all over before you probably know what even hit you.  Rather go like that than spend a minute or 2 being torn apart and knowing what was coming screaming for dear life.    :(
28
Solar / Re: Grid Tie, Oh My
« Last post by clockmanFRA on December 11, 2017, 01:47:47 AM »
Very boring here in France.

We have nothing.

Except the Hunters hereabouts, who seem to spend most of their time surrounding small woods in the hope of getting Wild Boar, and end up shooting themselves.
29
Solar / Re: Grid Tie, Oh My
« Last post by george65 on December 11, 2017, 01:29:29 AM »

 It seems to me that most people in the US think we are on the cutting edge of all technologies.

Sorry to say but the one I read a lot is people going on about manufactured in the USA.
Unfortunately, most of the rest of the world does not share your patriotic confidence in your manufacturing.  Sure, it's better than a whole load of crap out there but generally, even GOOD Chinese stuff is preferred over US made.

I think we are all in the same boat on that one. Western manufacturing is all but dead. OZ, Uk, US, NZ, Canada all had Large industrial manufacturing. We barely make a thing now. We just closed all our car manufacturing down. Everything is imported here now. It's sad, very sad really.

On the flip side, you would do VERY well not to make the mistakes we have rushing headlong into a moronic mindset that fossil fueled power generation is going to wipe us out if we don't do away with it entirely next week.  We have blown up so many of our coal fired stations that we now have gross power shortages because Gubbermints are busting a gut to look trendy in the eyes of the world and be all green.  It's costing a fortune in rising power bills, lost jobs and industry and manufacturing taking off to places where they can rely on the lights coming on when they flick the switch.

Trust me, with renewable power, Slow and steady is The real smart move here and the last thing you want to do is rush into it.

 
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The shipping charges should be interesting.  :(   

They really would! Bad topic to get me started on. I get rather upset that I can bring a shoe box size package in from anywhere in the world, China, canada, UK,  U name it for $20 but to get something from the US they want $80 for something the size of a matchbox!

I send a friend in Texas  a Heavy shoe box parcel a while back and it was $32.  Reasonable I thought seeing it was several KG. He was thinking it was going to cost about $100.

Quote

BTW  I watched a vid last night about brown @#*&% snakes that are found in parts of Australia.

Parts Of Australia? 
Those parts would be my backyard!
Several Neighbours have had them and just moving in 4 months ago, We have been sternly warned by everyone in the street we have spoken to so far.
There was  3 here over the summer about 3 years ago apparently.  My inlaws who live a few streets away lost their dog 4 years back after it was bitten by an eastern Brown.

They are around a LOT of Oz.  Of course if there's No browns, No.2 deadliest snake in the world, there's Taipans, the No.1 deadliest!
 If they aren't around, it's because the red belly blacks chased them off. I think they come in at No.7 deadliest.
 On latest research, we have the top 11 deadliest snakes.  I think the Funnel web Spider is on the deadliest list in that category and we have what I think is your equivalent of the black Widow. We call them Red backs.  They are the No.2 most dangerous spider here and they are everywhere.

 I Found a HUGE one last week in the shed. Thing was guarding 2 massive egg sacks as well.  Dispatched them all with a good squirt of pressure pack degreaser.
My son and I when he was about 8 yrs old on used to go out on summer nights with a torch, a blowtorch and a pressure back of degreaser hunting them in the back yard.  It was nothing to get 30 of them in a night, 40 was doing well. You'd go out the next night and get another 20. Leave it a week and you'd get another 30. Spray the degreaser as you light it up flame thrower style.  Works a treat. Good on wasps too. Those damn things Hurt!
I used to leave them alone till twice they attacked me when I didn't even see them.  Now I get in first!

The Funnel webs are pretty prevalent as well if you know where to look at the right time of the year. They are real aggressive things and I don't mind admitting, scare the ship out of me.  Thankfully they are no match for my can of flaming degreaser that keeps us a good 6 Ft apart.
I have a LOT of pressure pack degreaser up the shed. 4 unopened boxes of 12 atm and a bunch of loose ones all spread around at fast hands reach as well.
Need a really High powered version for the snakes.   :0)

Snakes are protected here. By rights you aren't allowed to kill them.  In practice most people round here have a long handled shovel in it's spot ready to grab to...errrr..... Shooo..... them away.   ;D  I bought mine the other week after being implored by 2 neighbours.
People round here and in a lot of parts are also advised regularly to keep compression Bandages in an easy to reach place in case of Snakebite.  Wrapping a limb tight slows the venom transfer and gives you a much better chance of recovery once you get the anti Venom.
We were up north in the tropics a couple of weeks ago and they were giving public demonstrations and lessons on how to deal with snake bite as far as wrapping wounds and caring for patients.

 
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The guy caught a couple in  a woman's pantry,  and back yard and, by law,  had to reloacte them nearby. They were released at a nearby swimming hole wher kids play. NOW THAT'S INTERESTING!!
Pete

Yeah well, like I said, not allowed to kill them and as long as the kids don't go near them they will be OK. Usually Browns Run where as Taipans and blacks, Mulga snakes especially, ( another top 11 Killer) tend to be aggressive and will attack first and retreat later.

Once released, If the kids do mess with the browns, they will only do it once.  ;D

Normally they are taken far away from civilisation to designated areas where they won't be a problem.
30
Other / Re: Spitballing a car engine/multi-alternator large-ish generator
« Last post by george65 on December 10, 2017, 10:15:11 PM »
I recommend having the tank BELOW the injection point so if for any reason the water does not shut off when the engine does, you don't fill it with water. 
Also have the tank vented.
Twice I DID fill a cylinder with water when the car sat in the sun, the tank got hot, pressurised and forced water out into the engine.
To clear it, all I did was keep bumping the engine on the starter every couple of minutes. Eventually the water ran past the rings and once I got the thing to exhaust stroke the water went out.  No real dramas and no damage, just took about 10 min to clear it out.  A mate did the same to his and being at home, we just took out the Glow plugs ( which luckily he was going to change anyway and had a set waiting) spun the thing over, watched at the impressive streams shoot out with force we would not have credited, put the GP's back in and all was good.

I also find pumps are easier for metering. I have been playing with a little PWM board for varying pump speed and I like the possibilities it offers.
It can be turned down for when cruising along the highway to save water and particularly water/ meth mix and then dialled up again when Climbing hills or traffic Light grand Prix.  For your application, you could use it just to regulate the speed of the pump to get the delivery you want.
If you do constant work like ploughing or slashing, you could just have a switch to turn the water on and off. If the motor is not working hard enough for the amount of water and you have forgot to turn it off as you disengage the pto or whatever, you'll feel it stumble and miss a little and that will remind you to flick it off.

The PWM boards would work well with windscreen washer motors. Don't underestimate those little things! They can deliver far more water than what you will need and tend to have very long lives.  I'd also suggest a GOOD size tank, especially at the start.
On my 4wd, Going up the hills on the highway to see my dad, I can easily go through MORE than 25L in 200 KM. I don't know how much more, I only have a 25L tank and it's always empty by the time I get that far and pull in for a burger and fill it back up.  It's usualy got a bit left time I get there a further 130 Km along but the back half is a lot flatter and you are on the throttle a lot less than the front 9.

This is the sort of board I'm refering to:

http://www.ebay.com.au/itm/30A-DC6-60V-PWM-Motor-Speed-Controller-Board-Dimmer-Current-Regulator-Display-U/302444919765?epid=788411837&hash=item466b1f3bd5:g:eZ8AAOSwCY9Zsgcw

This is the Diaphragm pump:

https://www.ebay.com.au/itm/Water-High-Pressure-Diaphragm-Pump-Self-Priming-70W-DC12V-130PSI-6L-Min-Caravan/142578576832?hash=item2132586dc0:g:dDMAAOSws6ZaCVTC
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