Leccy ferry for Auckland

[darkside 55]

Hydrogen fuel cells are certainly possible if you are lucky enough to have the rate payers picking up the tab. No one else in their right mind would.

[CarpeDiem 306]

1 hour ago, darkside said:

Hydrogen fuel cells are certainly possible if you are lucky enough to have the rate payers picking up the tab. No one else in their right mind would.

Absolutely. Also hydrogen only makes sense if you can't store enough required energy in your batteries. Otherwise it's inefficient. 

I am bemused to see a ex Toyota hydrogen fuel cell for sale on trademe. $25k.

https://www.trademe.co.nz/3688885920

What could possibly go wrong

[Deep Purple 485]

You know what's funny....Ports of Auckland recently commissioned a fully electric tug boat.

They have found on delivery that they do not have the electrical infrastructure to fast charge it so they have 2 yes 2 diesel generators parked on the wharf charging it

[Steve Pope 205]

9 minutes ago, Deep Purple said:

You know what's funny....Ports of Auckland recently commissioned a fully electric tug boat.

They have found on delivery that they do not have the electrical infrastructure to fast charge it so they have 2 yes 2 diesel generators parked on the wharf charging it

I have heard that at full "electric" power it can only run for 30 minutes???

[ex Elly 146]

Sparky is supposed to do 4 shipping moves, so much longer than 30 minutes. According to this:

https://www.poal.co.nz/media-publications/Pages/Sparky-arrives-in-Auckland.aspx

 

[khayyam 58]

30 minutes at full power is very different from 30 minutes of normal operation. Our 195kw ev could theoretically drain the 60 kWh battery in less than 20 minutes flat out, but in practice it will do 400km.

[CarpeDiem 306]

Yep, it's 30 minutes at full rated bollard pull.

[Ex Machina 283]

32 minutes ago, khayyam said:

30 minutes at full power is very different from 30 minutes of normal operation. Our 195kw ev could theoretically drain the 60 kWh battery in less than 20 minutes flat out, but in practice it will do 400km.

Just put a generator in the boot and go flat out as much as you want 

[CarpeDiem 306]

23 hours ago, Deep Purple said:

You know what's funny....Ports of Auckland recently commissioned a fully electric tug boat.

They have found on delivery that they do not have the electrical infrastructure to fast charge it so they have 2 yes 2 diesel generators parked on the wharf charging it

Are you sure? This sounds like a crossed/confused story...

The tug isn't fully electric, it has two backup diesel generators in it for emergency. It is effectively a PHEV. 

Given the amount of energy they use annually I find it hard to reconcile this.

Eg

The 3 small port cranes have dual 373kw lift motors in each crane and these cranes can run simultaneously, that amounts to 2200kw at peak power. 

That energy alone is enough to charge Sparky's 2.7MWh battery in the claimed 2 hours.

In 2017 the port used 16.7GWh of energy. That's enough to fully charge Sparky 5900 times.

They recently installed LED lighting saving 1.17GWh per year. That saving alone was enough to charge Sparky 400 times per year... 

The cranes actually put energy back into the grid when lowering containers otherwise the energy would go to waste... 
 

Not saying it's not happening, just would like to know more supporting information about these dock side diesel generators? 

[waikiore 300]

She has two C32 Cats onboard to enable her to fulfill her demanding role , in fact they were out last night practicing 

[Ex Veladare 94]

It motored down here from overseas under its own steam

[waikiore 300]

Yes Motored by lovely diesels