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This is the discussion thread for a recent post on GTPlanet:
This article was published by Andrew Evans (@Famine) on July 12th, 2019 in the Automotive News category.
The locations are more chosen to highlight anthropogenic climate change* than any particular fragility - sea levels (Indian Ocean), ice melting (Arctic, Glacier), record temperatures and desertification (Sahara) - but I did have the same thoughtI just don’t imagine 24 buggies racing around “environmentally sensitive” locations will be good for them in any way
Yes - they're basically filming each stage with drones. The drones relay the data to the St. Helena, which edits for broadcast.I also assume this will be a streaming-based series, since having spectators at those locations will be even worse for them.
The locations are more chosen to highlight anthropogenic climate change* than any particular fragility - sea levels (Indian Ocean), ice melting (Arctic, Glacier), record temperatures and desertification (Sahara) - but I did have the same thought
Yes - they're basically filming each stage with drones. The drones relay the data to the St. Helena, which edits for broadcast.
*I did my best to avoid talking about it in the article, because I could tell what the comments would have been; I know what the Facebook/Twitter comments will be
I was looking into Volkswagen's ID.R recently, because it has a huge truck with generators to recharge and cool the car after each run.There's one question which is pointedly avoided on the Extreme E series' website and also in all of the media coverage I've seen so far. If this follows the pattern of recent "electric" entries in the Dakar Rally, then the cars are probably going to be recharged after each stage/race/whatever from diesel generators (aboard their diesel-fueled base ship). Low-speed diesel engines, such as those used aboard ships, can have a thermal efficiency of around 50%. Actual efficiency could be significantly lower if they're going to charge from a separate portable generator set. Then there are conversion losses from battery charging & discharging, motors, wiring, etc. A quick look at some Tesla-enthusiast forums seems to indicate that the total real-world losses come to around 20-30%, so we'll use 25% losses (75% efficiency) as a guesstimate.
50% generator efficiency * 75% storage/drivetrain efficiency = 37.5% total thermal efficiency.
Diesel-engined cars operate at about 30-35% thermal efficiency.
So under optimum conditions these cars are maybe a few percent more ecologically correct than a regular diesel-powered rally raid car like the Peugeot 3008 DKR.
Now, if they were proposing to carry around a ship-based nuclear power station then I might be able to take their eco-warrior pose seriously, but otherwise it looks more like plain posturing and virtue-signalling aimed at duping people who can't be bothered to do the math.
I was looking into Volkswagen's ID.R recently, because it has a huge truck with generators to recharge and cool the car after each run.
It turns out that the generators for ID.R burn glycerin which - and I'm aware of the issues around taking what Volkswagen says about emissions at face value - it says are carbon neutral and "almost pollutant-free". Glycerin has a few sources, but it's a waste by-product of biodiesel production among others.
It further turns out that Formula E actually uses the exact same generators - they're from a company called AquaFuel (which says they're "very low" NOx and particulate) - and, as Extreme E is the same company as Formula E, there's little reason why Extreme E wouldn't also use them.
A couple of years ago, Aquafuel was talking about glycerin production from saltwater algae being viable in a timespan of a handful of years. I don't know if it's more advanced, or even realised, yet.Okay, that's pretty nifty information, and I'll give them partial credit for all that. However, there are some serious energy balance questions surrounding biodiesel & glycerin production. It gets complicated because it depends on exactly what feedstocks the biodiesel & glycerin are made from. When you consider all the factors of production, including the arable land that has to be used for fuel production instead of growing food or leaving it as wilderness, it's not obvious whether the Formula E / Extreme E fuel supply chain is actually a net ecological improvement or not.
I like that this was pointed out so early in the thread.I like the idea for this series, other than the choice of locations. I mean, I understand WHY they picked them, I just don’t imagine 24 buggies racing around “environmentally sensitive” locations will be good for them in any way. I also assume this will be a streaming-based series, since having spectators at those locations will be even worse for them.
It's in the article. She's called the RMS St. Helena.So how are they going to get all of these cars and support equipment (generators especially) to these far flung locations?
I like that the racing world is FINALLY clueing in to the fact that SUVs/crossovers are the dominant class of vehicle nowadays. We need more crossover-based racing series, with unique manufacturer bodywork and representation. Hopefully the Rally(cross) and touring car communities are paying attention.