[RahulNagaraj]

According to a recent study by ACEEE (American Council for an Energy-Efficiency Economy), the GMC Hummer EV produces more emissions than an IC-engine powered sedan - Chevy Malibu.



As per the reports, the study found that the Hummer EV was responsible for 341 grams of CO2 per mile, which is higher than Chevy Malibu's 320 grams of CO2 emissions over a mile. The high emissions from the Hummer EV are mainly attributed to the fossil fuels in the US power grid, which due to the vehicle's size and weight is comparable to the pollution levels of many IC-engine vehicles.

The study showed that smaller and lighter EVs will be more efficient than something like the Hummer EV. The smaller EVs will also require smaller battery packs, translating to less mining of rare earth metals - making them more eco-friendly on most fronts.

Now, General Motors has responded to the study stating that electric Hummer's inefficiency is because of the fact that it is a "Performance-oriented EV" and is built to go fast, rather than be frugal. The Hummer EV comes with a massive 212 kWh battery pack with 330 miles (531 km) of range. However, the electric SUV packs 1000 BHP and is capable of sprinting from 0 - 100 km/h in 3 seconds, which on a 4-tonne off-road electric pick-up truck is massively impressive.

The American carmaker also goes on to state that the study ignores the real-world importance of the Hummer EV and how the performance EV attracts customers to the electric vehicle segment. The spokesperson of GM said that 75% of customers who have reserved the Hummer EV have never owned an EV, and many are or were pick-up truck owners.

Source: GM Authority

Link to Team-BHP news

[GForceEnjoyer]

Wasn't this a flawed comparison from the start? Why was a full-size truck compared to a midsize sedan? The Hummer EV should have been compared with something like a Ford F-350 (or maybe an F-150 Raptor or a Dodge RAM TRX since they serve almost the same purpose).

GM is correct in its statement about the owners of the Hummer EV mostly upgrading from gasoline-powered pickups. We need to know the carbon emissions per mile of similarly sized gasoline-powered pickups to be able to compare them. Otherwise this is a pointless apples-to-oranges comparison.

[Nilesh5417]

Originally Posted by RahulNagaraj

According to a recent study by ACEEE (American Council for an Energy-Efficiency Economy), the GMC Hummer EV produces more emissions than an IC-engine powered sedan - Chevy Malibu.

Attachment 2333678

As per the reports, the study found that the
The study showed that smaller and lighter EVs will be more efficient than something like the Hummer EV. The smaller EVs will also require smaller battery packs, translating to less mining of rare earth metals - making them more eco-friendly on most fronts.

Source: GM Authority

Link to Team-BHP news

So what about a not so distant period in time when millions of small EVs run around the planet? Small EVs will sell in much higher numbers than the Hummer EV.

This study is pretty pointless IMO - maybe the study should focus on how much of the Hummer or any EV could be recycled (10-20-50-90%?) once it is out of use. What support does GM provide in recycling? That could be then a fair comparison.

P.S - didn't read the attachment, just read the post.

[sandeepmdas]

Totally agree with the other posts and the statement of GM. I wonder, do they really need to study this, since the efficiency vs weight curve of EVs is already well-known?

The battery-powered EV drive works very efficiently in smaller vehicles but literally runs out of juice in heavy vehicles. That's why the world is discussing green hydrogen, which is widely expected to replace both diesel and jet fuel.

The E-Hummer should be compared against the CO2 footprint of a 1000-BHP ICE Hummer; the results will instantly kill the ICE variants. No such variant exists of course, and I think these studious folks should wait till GM launches a hydrogen-powered H-Hummer

That would definitely make way for a very interesting discussion.

[Gurkeerat Singh]

I believe it’s unfair to compare the Hummer EV with an ICE like the Chevrolet Malibu, if anything, it should be compared to the ICE Hummer. The Hummer H2, even post the eco-makeover emitted 421 grams of CO2 per mile which is considerably more than the EV’s 341g/mile. Factoring that and the performance figures of the new car, I believe that GM have done a fantastic job.

[bullitt1]

1000bhp - 4 ton - 3 sec for 100 - after reading these numbers any comparison is futile, at least for now. Its a very niche vehicle and to top it, a range of 500+km is fantastic.

[GTO]

Brand Hummer is just a punching bag for the tree-huggers. High-end luxury cars & super cars guzzle just as much as the H3, but no one hated on them or SUVs like the Ford Expedition. Of course, Hummer also went a bit overboard with the weight of the new Hummer EV. They were just asking for trouble. Keeping the brand's history in mind, they should have gone for something lighter & more efficient. It weighs a whopping 4100 kilos!

[srh]

As a response, GM should do a comparative study of emissions between the Hummer EV and the Airbus A380 to show how massively environment friendly the Hummer EV is. ��

These type of studies are nothing but attention grabbing stunts to garner funding for NGOs. These are ably aided by the click bait driven media. In the real world, these studies are useless and meaningless.

[Atul Kolekar]

This kind of sensational reporting has been going on for a long time since Oil giant are reluctantly funding these smear campaigns rather than accepting the change.

A few years back similar studies were published blaming every EV of causing more pollution than any ICE. This was achieved by willfully ignoring all the pollution caused by fuel producers for extracting and refining the fuel but counting every gram of CO2 produced during production of electricity. I'm not sure if this trick was used in this questionable study as well but old habits die hard.

[McLaren Rulez]

Seems more an indictment of the large component of non-renewables that go into our power grid (or even a first-word country like the USA) than anything else.

[dhanushs]

Originally Posted by GTO

.... weighs a whopping 4100 kilos!

Sorry for the off-topic but damn!! That's H-E-A-V-Y! (And mind you, thats just the curb weight.)

Wonder what kind of stopping power and tyre grip it has. Also, I'd seriously re-think its off-roadability in loose mud/loose sand.

Oh, and with that kind of acceleration figures and weight, I'd prefer to stay behind and not in front of this massive truck!

I also wonder what would be the safety of this 4 tonner being propelled at this speed!

[astrodex]

Originally Posted by srh

As a response, GM should do a comparative study of emissions between the Hummer EV and the Airbus A380 to show how massively environment friendly the Hummer EV is.

While I agree the study is flawed, this argument would actually not help the cause A380 current CO2 discharge per km is something like 65 gms (older ones were about 90 gms) per passenger, so even if you consider 4 people, it is probably better than EV Hummer.

See here

[srh]

Originally Posted by astrodex

While I agree the study is flawed, this argument would actually not help the cause A380 current CO2 discharge per km is something like 65 gms (older ones were about 90 gms) per passenger, so even if you consider 4 people, it is probably better than EV Hummer.

See here

Fair point. My post was just sarcasm. Anyways, the test is for emissions per mile and not for emissions per mile per passenger.