Gasoline So Clean It’s Like Swapping to 11 Million EVs!
In September 2021 we covered a new "green gasoline" concept from Nacero, that involves constructing gasoline hydrocarbons by assembling smaller methane molecules from natural gas. Then in February 2022 the company inked a 20-year deal with NextEra to supply wind power to Nacero's Penwell factory in a bid to halve the lifecycle carbon footprint of its gasoline with the potential to take that number to zero. In so doing, the company claimed that the four million drivers burning Nacero gasoline will deliver the equivalent carbon savings of swapping 11 million ICE vehicles for EVs(!). We politely asked to see their math.
NORCO, LA - AUGUST 21: A gas flare from the Shell Chemical LP petroleum refinery illuminates the sky on August 21, 2019 in Norco, Louisiana. Located about 10 miles up the Mississippi River from New Orleans, the plant agreed to install $10 million in pollution monitoring and control equipment in 2018 to settle allegations that flares used to burn off emissions were operating in violation of federal law (the Clean Air Act). Many of the coastal parishes in Louisiana have a long and ongoing history in oil and gas production, which is often at odds with concerns of environmentalists. (Photo by Drew Angerer/Getty Images)
55-Percent CO2 Savings from the Production Process
Nacero's 93,000-barrels-per-day Penwell facility will earn a lifecycle (Scope 1-3) CO2 equivalent footprint* of 25 million metric tons per year. That's a 55-percent reduction from the 56 million tons that a typical crude-oil plant would be assigned for producing an equivalent amount. This is mostly because refining gasoline by cutting down super long and complex hydrocarbons from crude results in all sorts of other heavier, dirtier byproducts that you simply don't get when assembling gasoline from smaller methane molecules.
*Scope 1 figures in direct emissions from sources owned by Penwell; Scope 2 is indirect emissions from purchased electricity, steam, heat, and cooling; and Scope 3 covers all other emissions associated with a company's activities (emissions from the use of the product, its transportation, waste generation and disposal, etc. ).
8 Million Metric Tons Not Included
Of that 25 million MT figure, 8 million are assigned to activities like natural gas extraction and fuel hauling, which are the responsibility of other companies who can claim credit for the carbon reduction they bring about, so to be conservative, Nacero's calculations do NOT include these savings. This avoids the potential for double counting them.
Zeroing Out the Last 17 Million Metric Tons
Nacero uses four pathways to offset most of the remaining 17 million metric tons:
- Pre-combustion carbon capture and sequestration (1.4 million metric tons of Scope 1 emissions). This is accomplished using an absorber tower with a hot potassium carbonate solution that collects the CO2 that concentrates at the point where natural gas is converted to syngas on its way to becoming gasoline.
- Post-combustion carbon capture sequestration (1.5 million metric tons of Scope 1 emissions) A chemical solvent scrubs CO2 from flue gas generated by heater stacks employed throughout the facility, using existing, commercially proven technologies. The captured CO2 gets compressed and piped to a nearby oil field for use enhancing oil recovery, which sequesters the CO2 underground.
- Use of 100 percent renewable power (0.9 million metric tons of Scope 2 emissions) Here's where the recently inked NextEra deal for wind energy comes in.
- Use of renewable natural gas (11.8 million metric tons of Scope 3 emissions). The major sources of renewable natural gas today are landfills, animal manure, and solid waste extracted during wastewater treatment—all sources of waste that are continuously produced by present-day activities.
Arriving at that 11 Million EVs Number…
So to recap, there's 31 million metric tons of CO2 savings right off the bat from the refining process, plus at least 15.6 million metric tons from the four steps listed above. That's 46.6 million metric tons. The US Department of Energy assigns a typical gasoline vehicle a well-to-wheels pounds of CO2 Equivalent rating of 11,435 pounds, while an EV charged at the national-average electric grid's carbon equivalence gets a rating of 3,932 pounds. Using that math, switching just under 13.7 million gas cars to pure EVs across the country would save an equivalent amount of CO2. Nacero rounded down considerably to make its 11 million EVs claim conservative.
When and How Much?
Construction on the Penwell facility is just getting underway with a target of partially opening in 2025, making gasoline that warrants that 55-percent improvement over gasoline from crude. While the company has started arranging contracts for renewable methane, it's expected to take 10 years to source enough to fully eliminate that last 21 percent improvement. And a per-gallon cost is yet to be set for the gasoline but it's likely to be tiered. Nacero Blue gas is expected to be priced competitively with crude-based gasoline (the natural gas feedstock is way cheaper than crude), while Nacero Green will cost more to account for the added expense of sourcing renewable natural gas. Note that the gasoline may not actually be constructed of this gas, Nacero will simply contract to have an equivalent quantity of renewable natural gas injected into the national grid.
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Is the GMA T.33 better than the McLaren F1? Gordon Murray smiles. "Oh, yes," he says. "The engine's better, the gearbox is better. It's lighter and has a slightly better power to weight ratio. The finish and the quality are much better."The McLaren F1, created by Murray in the early 1990s at the height of his fame as a rock star grand prix race car designer, is widely regarded as the seminal hypercar, a car that set absolute benchmarks for on-road performance. One sold last year for more than $20 million. The GMA T.33, Murray's new ultralight, driver-focused mid-engine coupe will be priced from about $1.85 million, plus tax, when production starts in 2024.In the context of today's McLaren F1 market, it sounds like a bargain.The T.33 is the follow up to last year's T.50, the car Murray designed specifically as a 21st century successor to the McLaren F1 and a halo for his GMA brand. Like the T.50, it's powered by a high-revving naturally aspirated V-12 and will be available with a six-speed manual transmission. But beyond elements of the powertrain—and the air conditioning system and interior switchgear—the T.33 shares nothing with the T.50. It's a completely different car, designed for a completely different purpose.The T.33's engine has less power, less torque, and a lower rev limit than the version used in the T.50 and T.50 Niki Lauda. Dubbed the Cosworth GMA.2 and distinguished by its yellow cam covers (the T.50's were orange and the T.50 Niki Lauda's red) it makes 607 horsepower at 10,500 rpm and 333 lb-ft of torque at 9,000 rpm, 47 hp and 11 lb-ft fewer than in T.50 spec. This is due to different cams, revised valve timing and engine mapping, and new intake and exhaust systems.The decision to lop 1,000 rpm from the engine's top end wasn't just a case of ensuring differentiation between T.50 and T.33. "To be really honest," Murray says, "the main reason is that 12,100 rpm in a 4.0-liter engine with valve springs is getting right up there on the ragged edge. Going to 11,100 rpm makes much more sense." Just for reference, in T.50 spec the engine makes peak power at 11,500 rpm.The other benefit is improved drivability. Murray says in T.50 spec the engine delivers 70 percent of its peak torque from just 2,500 rpm, but the T.33 version pumps out 75 percent of its peak torque at the same crank speed and 90 percent from 4,500 rpm. "I've never driven a V-12 with such low-down torque," he says of his test sessions in the T.50, "but the T.33 is on another level altogether."As in the T.50, the T.33 V-12 drives the rear wheels through a six-speed manual transmission designed and developed by British motorsport specialist Xtrac. The T.33's transmission, which weighs just 177 pounds, shares its ultralight casing with the T.50 unit, but all the internals are new.Unlike the T.50, the T.33 can be ordered with a paddle-shift transmission. Also developed by Xtrac, this transmission features the company's ingenious Instantaneous Gearchange System (IGS), which features an integrated ratchet and pawl mechanism between each gear hub and the main shaft so that two consecutive gear ratios can be selected and engaged simultaneously, but with only one set of gears driving. As there are no clutches to actuate, switching from one ratio to the next is, well, instantaneous, and there's no interruption to the torque flow.Murray says the paddle-shift T.33 will be significantly quicker than the manual car, both in a straight line and on the track, but notes that of the 60 cars already pre-sold—like the T.50, just 100 are being built—only three have so far been ordered with the IGS transmission.The T.33's chassis eschews the usual practice of bolting front and rear subframes to a central carbon-fiber tub. Instead, the car's central structure comprises Formula 1-style aluminum-core carbon-fiber panels bonded around aluminium tubes that run from front to rear. The carbon-fiber elements provide the essential torsional and bending stiffness, as well as a strong structure for crash safety, and the design eliminates the need for bolted joints."A bolted joint is messy and heavy, and it's flexible," Murray says. "No matter how well you do it, there's always a bit of joint movement at the transition from tube to carbon."Up front, supporting the suspension, steering rack, and stabilizer bar, is a single aluminum casting, which Murray won't describe in detail other than to hint it's similar in concept to the organic Bionicast structure used at the rear of the Mercedes-Benz EQXX concept. At the rear, aluminum tubes simply cradle the engine, which is attached with just four bolts. The rear suspension is bolted directly to the transmission, and although the engine is rubber-mounted to reduce noise, vibration, and harshness, a clever trapezoidal link setup is used to lock the engine and transmission into place when subjected to loads through the rear wheels.Murray reckons the innovative design of the T.33 chassis, which is loosely based on the iStream process he developed to build lightweight cars at low cost and high volume, makes it about 44 pounds lighter than a contemporary supercar chassis of a similar size. "It's taken two years to develop the technology, and we're thinking we might build the T.33 chassis ourselves to keep it in-house," he says. Like all Gordon Murray cars, the T.33 is light. Target weight is just 2,403 pounds, a mere 230 more than the T.50 despite the car being engineered to be built in both left- and right-hand drive and meeting all U.S. and European crash regulations. That means the T.33 doesn't need massive brakes, wheels, or tires. The standard brakes are carbon ceramic, with relatively modest 14.6-inch-diameter rotors in front and 13.4-inch units at the rear. The tires are relatively modest, too—235/35 Michelin Pilot Sport 4s on 19-inch forged wheels up front and 295/30 items on 20-inch wheels out back. Power steering is by way of a new hydraulically assisted system specially developed for the car.And like all Gordon Murray cars, the T.33 will have a relatively comfortable ride. "I never do stiffly sprung cars," Murray says. "I just don't like them. If you are going to drive it on a track, you're going to feel a bit of roll and pitch." However, for those customers who want to spend most of their time in their T.33s at track days, GMA will offer a sportier suspension setup. "The cars are so handbuilt, we can do virtually anything for the customers."It's difficult to judge from the photos, but the T.33 is about the same length overall as a Porsche 718 Cayman even though its roofline is 5.5 inches lower and its 107.7-inch wheelbase is an astounding 10.3 inches longer. The pictures don't show the subtlety of its design, either, the overall flavor of which has been inspired by Murray's passion for 1960s mid-engine sports cars such as the Ferrari 206 SP Dino and the Alfa Romeo 33 Stradale.The central driving position of the T.50 dictated a very cab-forward proportion. As the T.33 has a conventional driving position, which allows the pedals to be located farther rearward in the chassis, its cabin is, like those 1960s cars, more centrally located between the wheels. The wasp-waisted car also has a broad front air intake, pronounced haunches over all four wheels, and just the merest hint of a Kamm tail at the rear.The relatively clean and simple surfacing belies some truly clever design details. There are no visible door handles; access to the cabin is via touch-sensitive buttons in the Gordon Murray Automotive logos at the base of the B-pillar. The fuel and oil fillers are hidden behind the panels on the pillars. The small vent at the base of the vertically stacked headlights not only ducts air to the front brakes but also allows the car to pass low-speed crash requirements while echoing iconic 1960s headlight graphics."There's nothing just for styling's sake on the car at all," Murray says. "Every single element has something to do. " The wide front air intake, for example, houses all the cooling hardware, which means there's no need for unsightly and un-aerodynamic ducts in the body side. Extra cooling air is ducted into the engine compartment from under the car.The ram air intake above the cabin is another case in point. While in other mid-engine cars such intakes are part of the bodywork, in the T.33 it's mounted directly to the engine and stands proud of the bodywork so it can move. That eliminates the need for a flexible coupling, which means the internals of the entire intake can be kept perfectly smooth.The other benefit, Murray explains, is more subtle: "If the intake is flush to the roof, you get a boundary layer buildup [of slow-moving air], which renders the bottom slice of the intake quite useless. By having the intake separate and floating above the car, we bleed off the boundary layer into the engine bay, which is low pressure, and then we can have a smaller, more aerodynamic duct."Although the T.33 doesn't have the downforce of the fan-forced T.50, learnings from that car have been incorporated into the floor design. Two big diffusers at the front of the car help deliver downforce to the front axle. And while testing the T.50, Murray's team found the unique stepped diffuser at the rear of the car, which had been designed to work in conjunction with the fan drawing air through it, delivered 30 percent more downforce than expected with the fan switched off.A revised version of the stepped diffuser layout is now a feature of the T.33's floor. "It was a happy accident," Murray says of the discovery. "But it means most of the downforce is developed at the front of the diffuser, near the car's center of gravity."Combined with the two-thirds total downforce developed by the front diffuser, that means the T.33 doesn't need a splitter protruding from underneath the front air intake. The only active aero device on the car is a rear wing that tilts to maintain aero balance at high speed and flicks to near vertical under braking.All this careful attention to aerodynamic detail has resulted in one very practical benefit: luggage capacity. In addition to being able to accommodate two cases in its full-width frunk, the T.33 can also carry two each in either side of the car, in compartments between the door opening and the rear wheel. To access the compartments, the entire rear quarter panels are hinged at the rear.The GMA T.50, with its central driving position and fan-forced active aerodynamics, is a trophy car, the state-of-the-hypercar-art as expressed by the man who invented the concept 30 years ago. The GMA T.33 has been designed to similarly celebrate light weight and ultimate driving thrills, but also to have the ride quality and ground clearance and luggage capacity that allows it to be driven every day."I could see myself using one all the time," says Murray, whose current daily driver is the delightful, delicate Alpine A110. "If you had to have only one supercar, the T.33 is it."There's another reason to desire a T.33, too. More V-12-powered GMA cars are coming—another two are planned over the next decade—but all will have some form of electrification to enable them to meet emissions regulations. "This will be our last nonhybrid car," Murray says. "If anybody wants the last, beautiful V-12 without any hybridization, this is the one."
With SUVs increasingly becoming the default choice for single-car families across the U.S., automakers are working hard to make them more fuel efficient. Last year's 20 most fuel-efficient SUVs averaged an impressive 55.5 mpg combined; this year, the 20 most fuel-efficient SUVs bump up their combined average to 60.9 mpg. And that figure doesn't include the increasing availability of electric SUVs. Last year there were about nine SUV EVs on sale. This year? Seventeen and counting. Provided you're not ready to make the leap to an electric SUV (all of which would make this list), what follows are the 20 SUVs that achieve the best gas mileage on the market in 2022.But before we dig in, some quick housekeeping. Our list of the most fuel-efficient SUVs for the 2022 model year was gleaned using EPA test data, and all vehicles are ranked in order from 20 to 1 using their combined mpg/mpg-e figure. When we had a tie, we then factored in electric-only range (if applicable) and highway fuel economy to break it.Plug-in hybrid, hybrid, gas, and diesel SUVs were all eligible to make this list, but as you'll soon see, plug-in hybrid and hybrid SUVs dominate. As previously mentioned, the 17 electric SUVs on sale in the U.S as of this writing weren't included. In case you're curious, they are:Tesla Model Y (up to 129 mpg-e)Hyundai Kona Electric (120 mpg-e)Kia EV6 (up to 117 mpg-e)Chevrolet Bolt EUV (115 mpg-e)Hyundai Ioniq 5 (up to 114 mpg-e)Kia Niro EV (112 mpg-e)Tesla Model X (up to 105 mpg-e)Ford Mustang Mach-E (up to 101 mpg-e)Volkswagen ID4 (up to 99 mpg-e)Audi Q4 E-Tron (up to 95 mpg-e)Mazda MX-30 (92 mpg-e)Volvo C40 Recharge (87 mpg-e)Volvo XC40 Recharge (85 mpg-e)Audi E-Tron (up to 78 mpg-e)Jaguar I-Pace (76 mpg-e)Porsche Taycan Cross Turismo (up to 76 mpg-e)Rivian R1S (69 mpg-e)Without further ado, here are the 20 most fuel-efficient SUVs you can buy today, in order from worst to first.
WHAT IT IS: Honda plans to launch two electric sports cars in the medium term. The first is dubbed a "specialty model," and based on the teaser image Honda shared, it looks like it will have the proportions of a smaller, more affordable sports car. The return of the S2000 doesn't sound like a crazy idea, especially when everyone is resurrecting old model names. This will be the company's first electric sports car, but not its only one. The second model will serve as a halo, and based on its proportions, it looks like an Acura NSX with a wilder form. Honda hasn't said if both cars will carry the Honda brand name, but given the NSX falls under Acura for the North American market, it won't surprise us to see such a strategy continue.WHY IT MATTERS: As everyone goes electric, Honda has been one of the most conservative automakers to make the change. This move puts Honda on the radar, as the Japanese company aims to sell more than 500,000 electric vehicles in North America later this year. With the Acura NSX leaving production after the 2022 model year, this electric halo car could mark its return. And who won't be excited by an S2000-inspired electric car?PLATFORM AND POWERTRAIN: It's too early to know the details, but these two cars will be based on Honda's own electric vehicle platform, dubbed e:Architecture. Yes, Honda is working with General Motors to launch two SUVs—the Prologue and an unnamed Acura crossover—but the two sports models will be developed completely by Honda. We estimate each car will have at least 300 miles of range and a scintillating driving experience.ESTIMATED PRICE: The "specialty model" should start at less than $50,000, but the halo model will most likely cost more than $150,000.EXPECTED ON-SALE DATE: 2026 for the small model and 2027 for the halo car.
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