slipperyox wrote: » Whats wrong with keeping diesel buses? If my math is correct. Dublin bus uses 27 million litres fuel/year 67,000 acres of rapeseed would sort that out. A fifth less if they switched to hybrid diesel buses. So 13500 acres. Zero carbon emmisions
L1011 wrote: » Single deckers. All single deckers. Have you actually taken a look at the makeup of the Dublin PSO (Dublin Bus + GAI fleet) recently?
celtic_oz wrote: » Sigh ...Did you even read the linked stories ? "The Mayor of London Sadiq Khan said: “London’s toxic air is a shameful health crisis which is causing premature deaths and stunting the growth of children’s lungs. Today, as part of our work to tackle the harmful emissions we breathe and to help tackle the climate emergency, I am proud to announce the first two routes which will exclusively use electric double deck buses." "The Mayor of London challenged us saying that he did not believe an electric double decker was technically feasible but we took up the challenge and in less than two years created the bus Londoners can see today”, said Isbrand Ho, Managing Director of BYD Europe. “This is not a hybrid bus but a totally emissions free product which will give London a world leading position in its efforts to improve air quality”. Leon Daniels, TfL’s Managing Director for Surface Transport, said: “BYD are a brilliant supplier. They lead the world in electric bus technology and we thank them for their efforts to make this new double decker a reality”."There are now 100 electric double deckers buses in the UK Hang on I'll post a picture .. it has 77 seats ( it loses 3 to the batteries :rolleyes: ) Notice the "I am Electric" sign in the window.. It always seems impossible until it's done.
Deleted User wrote: » Check your sums
Markcheese wrote: » How much tractor diesel ,and natural gas fertilizer does it take to make this zero emission fuel ? ( Plus the amount needed to process it ,although if you don't use solvents to extract the oil you do have an animal feed as a biproduct ...but if you don't use solvents you get a lower yeild of oil ...)
slipperyox wrote: » Solar panels produce 20g CO2 per KWH for life.
Markcheese wrote: » It'd probably be a good idea for the nta to get a couple of electric double deckers to put them on long term test ... It could well be that electric buses leapfrog hybrid buses and make them redundant before they really get going ...
bk wrote: » 650 (2/3rds of the fleet) of the most advanced Hybrid buses on the market! The buses they ordered are plugin hybrids with a relatively decent sized battery that allows them operate for a few km
Markcheese wrote: » Great ...(and the ones coming in a few years will be even better) But what's that got to do with growing oil seed for biodiesel ...
slipperyox wrote: » Because you mentioned my suggestion was not zero emission. And neither is solar, or wind, and hydro for that matter is one of the biggest renewable greenhouse gas emitters for that matter. I'll not bother coming here again if its just snide answers with no discussion.
celtic_oz wrote: » https://www.independent.ie/business/irish/esb-lodges-plans-for-75mw-dublin-peaker-plant-39174692.html just like Dublin bus buy diesel buses and when embarrassed in the media submit to a few hybrids when clearly electric bus's are the future Do you think the ESB even costed a grid scale storage battery ?https://youtu.be/O-kbzfWzvSI?t=889
Kewreeuss wrote: » Planning permission has been requested for a gas powered power station near peamount hospital. 110MW Is that a lot? Would it break even?
cgcsb wrote: » Sweden operates 3 plants, 7 reactors, 10 million population, about 11GW of Nuclear capacity. The Irish grid is all-Ireland so about 7 million people. The weird thing is, it's claimed that Nuclear only provides 40% of Sweden's demand with hydro also being a major source, not sure how they manage that. Maybe they export most of it to Denmark?
jimmycrackcorm wrote: » Yes because they're ok for us to import dirty created electricity from abroad, but not generate it ourselves.
ted1 wrote: » How many of there grids are an island? The only interconnections we have a DC non synchronous. Or grid is not comparable to any of them.
tom1ie wrote: » do we not have two interconnectors?
Victor wrote: » I get the impression that many such interconnectors are DC.
ted1 wrote: » Lots of AC interconnecters between European and scandavian countries. Generally it’s only the subsea ones which are DC
tom1ie wrote: » long distance underwater cables are always dc as opposed to ac due to capacitive losses, so an ac cable would have to have a much larger csa than a dc cable. unless your talking about overhead ac lines as an interconnector which would be fairly impossible going from Ireland to either England or France.
tom1ie wrote: » not having a go or being smart, this is a genuine question: Do you come to that conclusion by the amount of concrete used to go into the production of the dam or something? Surely all the clean electricity the hydro station produces would offset the carbon cost and instead would make the project net carbon negative over the projected lifespan of the project? So are we saying the three gorges dam is the biggest renewable greenhouse gas emitter on the planet?
Lu Tze wrote: » I was reading an article a few years ago about a large hydro dam in South America, it was releasing more CO2 than an equivalent capacity fossil fuel plant due to the algae building up in the lake formed by the hydro dam.
celtic_oz wrote: » exactly Looks like their will be no budget for a while though :
bk wrote: » :rolleyes: Just as well that the NTA thought of that so. The 600 buses is only an overall framework agreement with ADL for 6 years. They only placed a firm order for 100 actual buses for this year. Each year they can review their requirements and choose a different specification, including EV if they want. Of course this is all up in the air at the moment due to COVID19. ADL had to shut their factory due to COVID19 restrictions and public transport use is WAY down. So it is yet to see how all of this plays out. The good news is that the ADL-BYD Double Deckers you linked to above are actually built in a joint partnership between ADL and BYD. The Chinese company BYD produces the battery and drive train, while ADL builds the actual bus. So ADL has plenty of experience with these EV buses. And once they prove good enough for the NTA's needs, I'm sure ADL will tell the NTA and they can opt to switch their order to them. BTW This order for 100 buses in London is nothing. The London Bus fleet is almost 10,000 buses, so it is just over 1% of the fleet. This is more a long term trial (and a bit of PR fluff) then a serious order. But it is good news as it will allow transport authorities throughout UK/Ireland find out how they really perform over the long term. BBTW The only other company who made an EV double decker, Optare, is very small and wouldn't have the capacity to make enough buses for the NTA. Wrightbus is the only other major double decker bus manufacturer, they made the current Dublin Buses. Well they went bankrupt a few months ago! Now they have been rescued by JCB, but they are much smaller now, they are rebuilding and likely wouldn't have the capacity to satisfy an NTA order either. Plus they don't have an EV Double deckers and their hybrids are also much poorer, small battery, no plug. The hybrid buses they trialled from Wrights were much less capable then the one they ordered from ADL. So basically ADL are the only game in town at the moment, so it is good that the NTA are going with them.
tom1ie wrote: » you know what I didn't even think of that!! That's incredible.
slipperyox wrote: » Your welcome
tom1ie wrote: » I was replying to a different poster who made the point about algae. You didn’t provide a point. Where you talking about algae aswell or the amount of concrete used in the structure?
tom1ie wrote: » you may have already answered this but do china not produce double decker ev's? i know the logistics of actually getting a chinese ev dd over here would be a tall order but humour me
