Sparky Goes To Work

[Psyche 451]

On the job

https://www.stuff.co.nz/business/129819990/aboard-sparky-the-electric-tugboat-for-its-first-job-in-auckland

 

 

[Kevin McCready 83]

Great story. Hiko would have been a great name.

[waikiore 296]

$21 Million plus the onshore electric substation, and 64 litres of Caterpillar power -sort of green 

[Kevin McCready 83]

I don't understand the reference to 64 caterpillar. But it pays for itself over its lifetime they say. 

[BNG 34]

21 minutes ago, Kevin McCready said:

I don't understand the reference to 64 caterpillar. But it pays for itself over its lifetime they say. 

The 2x C32TA Cat diesel generators on board generating 1175 Kva.

[Steve Pope 205]

3 hours ago, Kevin McCready said:

I don't understand the reference to 64 caterpillar. But it pays for itself over its lifetime they say. 

I think all pre "sparky" tugs would pay for themselves over their lifetime, some probably several times.

[Kevin McCready 83]

I see what you mean Steve. I guess we now factor in cost of climate change.

[CarpeDiem 306]

Sparky, at $21M, is roughly twice the cost of an equivalent new diesel tug.

Using todays prices, it will cost one third as much to run as that equivalent tug would.

So financially Sparky wins and will only get cheaper as the price of oil increases. 

In 2019, the equivalent strength Hauraki, used 191000 liters of diesel equating to 515 tCO2e

Sparky will use approximately 502MWh to operate in the same way, this equates to 50 tCO2e which would mean an annual saving of 465 tCO2e.

[Psyche 451]

Found this, was quite surprised that coal was so low

[Ex Machina 283]

Surprised that geothermal is 2nd on the list 

[khayyam 58]

The actual generation mix depends quite strongly on how much rain has fallen and thus how much water is behind the dams. Right now electricity is extremely cheap, because it's been wet and there's heaps behind the hydro dams. Last year it was dry and prices were very high as they conserved the water.

[Steve Pope 205]

4 hours ago, khayyam said:

The actual generation mix depends quite strongly on how much rain has fallen and thus how much water is behind the dams. Right now electricity is extremely cheap, because it's been wet and there's heaps behind the hydro dams. Last year it was dry and prices were very high as they conserved the water.

In relatively recent times, since the sale of state energy assets it has been not uncommon for water to be dumped from storage lakes to keep energy prices high to the benefit of shareholders, not consumers. Also the pricing to high users (Comalco for example) is probably as close to the cost of production as they can get, as moving that power onto the general market and the infra structure costs required to achieve that are considered to high to do.

[waikiore 296]

And this time last year 500 tons of cheap coal coming into the POA for Huntly per week, not sure how much this year, lets stay away from greenwashing.

[khayyam 58]

Much less coal this year.

https://app.em6.co.nz/?planningregion=uni

Last year wasn't good, it's true.

 

 

[harrytom 558]

1 hour ago, khayyam said:

Much less coal this year.

https://app.em6.co.nz/?planningregion=uni

Last year wasn't good, it's true.

 

 

Still plenty coming in as its stored just down the rd.Huntly bound and Glenbrook

 

 

[Kevin McCready 83]

Yes ma'am i realise your planet is on