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Electric Vehicles Vs. Hybrids: The Face-off For Distance, Efficiency and Reliability
By Josh Goldman
Choosing a vehicle is tough.
Sunroof or moonroof?
Front wheel drive, rear wheel drive, or all-wheel drive? Do I even need a CD player? And what about color? Burnt orange is nice, but so is cashmere metallic and squid ink (hint: always get squid ink). Considering a hybrid or electric vehicle adds another factor into an already difficult decision. Should you go with a standard hybrid, plug-in hybrid, battery electric or fuel cell? What is the difference between these types of vehicles anyway?
Conventional hybrids, like the Toyota Prius, combine both a gasoline engine with an electric motor. While these vehicles have an electric motor and battery, they can’t be plugged in and recharged. Instead their batteries are charged from capturing energy when braking, using regenerative braking that converts kinetic energy into electricity. This energy is normally wasted in conventional vehicles.
Depending on the type of hybrid, the electric motor will work with the gasoline-powered engine to reduce gasoline use or even allow the gasoline engine to turn off altogether. Hybrid fuel-saving technologies can dramatically increase fuel economy. For example, the 2014 Honda Accord hybrid achieves a combined 47 miles per gallon (mpg) compared to a combined 30 mpg for the non-hybrid version. At 12,000 miles a year and $4 per gallon of gasoline, that means saving over $575 each year.
Plug-In Hybrid Electric Vehicles (PHEVs)
Plug-in hybrid electric vehicles (PHEVs) are similar to conventional hybrids in that they have both an electric motor and internal combustion engine, except PHEV batteries can be charged by plugging into an outlet. So why opt for a PHEV instead of a conventional hybrid? Well, unlike conventional hybrids, PHEVs can substitute electricity from the grid for gasoline. The 2014 Ford Fusion Energi, for example, can go about 21 miles by only using electricity, and the 2014 Chevy Volt can go around 38 miles before the gasoline motor kicks in.
Though this doesn’t sound like a far ways, many people drive less than this distance each day. In a recent Union of Concerned Scientists (UCS) survey, 54 percent of respondents reported driving less than 40 miles a day. Moreover, using electricity instead of gasoline is cheaper and cleaner for most people. The average cost to drive 100 miles on electricity is only $3.45 compared to $13.52 for driving 100 miles on gasoline.
Battery Electric Vehicles (BEVs)
Battery electric vehicles run exclusively on electricity via on-board batteries that are charged by plugging into an outlet or charging station. The Nissan LEAF, Fiat 500e, and Tesla Model S fall into this category, though there are many other BEVs on the market. These vehicles have no gasoline engine, longer electric driving ranges compared to PHEVs, and never produce tailpipe emissions (though there are emissions associated with charging these vehicles, which UCS has previously examined).
The BEVs on the market today generally go around 60 to 80 miles per charge, though a Tesla can travel over 200 miles on a single charge. A recent UCS survey found that a BEV range of 60 miles would fit the weekday driving needs of 69 percent of U.S. drivers. As battery technology continues to improve, BEV ranges will extend even further, offering an even larger number of drivers the option of driving exclusively on electricity.
Fuel Cell Electric Vehicles (FCEVs)
Fuel Cell Electric Vehicles (FCEV) use an electric-only motor like a BEV, but stores energy quite a bit differently. Instead of recharging a battery, FCEVs store hydrogen gas in a tank. The fuel cell in FCEVs combines hydrogen with oxygen from the air to produce electricity. The electricity from the fuel cell then powers an electric motor, which powers the vehicle just like a BEV. And like BEVs, there is no smog-forming or climate-changing pollution from FCEVs tailpipe – the only byproduct is water. Unlike BEVs or PHEVs, however, there is no need to plug-in FCEVs, since their fuel cells are recharged by refilling with hydrogen, which can take as little as 5 minutes at a filling station.
But just as producing electricity to charge a plug-in vehicle creates emissions, producing hydrogen also generates emissions. Hydrogen made today from natural gas produces about the same total emissions per mile as charging a plug-in vehicle with electricity generated from natural gas. But when made from renewable sources like biomass or solar power, hydrogen can be nearly emission free.
Moreover, hydrogen fueling infrastructure, like public electric vehicle charging stations, is still ramping up—and mostly available in California. With increased state and federal policies aimed at helping get more of these vehicles on the road, FCEVs can become a large part of our future transportation systems.
Visit EcoWatch’s TRANSPORTATION page for more related news on this topic.
EcoWatch Daily Newsletter
By Julia Conley
Climate campaigners on Friday expressed hope that policymakers who are stalling on taking decisive climate action would reconsider their stance in light of new warnings from an unlikely source: two economists at J.P. Morgan Chase.
Tensions are continuing to rise in Canada over a controversial pipeline project as protesters enter their 12th day blockading railways, demonstrating on streets and highways, and paralyzing the nation's rail system
Colorado River Has Lost 1.5 Billion Tons of Water to the Climate Crisis, 'Severe Water Shortages' May Follow
California is headed toward drought conditions as February, typically the state's wettest month, passes without a drop of rain. The lack of rainfall could lead to early fire conditions. With no rain predicted for the next week, it looks as if this month will be only the second time in 170 years that San Francisco has not had a drop of rain in February, according to The Weather Channel.
The last time San Francisco did not record a drop of rain in February was in 1864 as the Civil War raged.
"This hasn't happened in 150 years or more," said Daniel Swain, a climate scientist at UCLA's Institute of the Environment and Sustainability to The Guardian. "There have even been a couple [of] wildfires – which is definitely not something you typically hear about in the middle of winter."
While the Pacific Northwest has flooded from heavy rains, the southern part of the West Coast has seen one storm after another pass by. Last week, the U.S. Drought Monitor said more Californians are in drought conditions than at any time during 2019, as The Weather Channel reported.
The dry winter has included areas that have seen devastating fires recently, including Sonoma, Napa, Lake and Mendocino counties. If the dry conditions continue, those areas will once again have dangerously high fire conditions, according to The Mercury News.
"Given what we've seen so far this year and the forecast for the next few weeks, I do think it's pretty likely we'll end up in some degree of drought by this summer," said Swain, as The Mercury News reported.
Another alarming sign of an impending drought is the decreased snowpack in the Sierra Nevada Mountain range. The National Weather Service posted to Twitter a side-by-side comparison of snowpack from February 2019 and from this year, illustrating the puny snowpack this year. The snow accumulated in the Sierra Nevadas provides water to roughly 30 percent of the state, according to NBC Los Angeles.
Right now, the snowpack is at 53 percent of its normal volume after two warm and dry months to start the year. It is a remarkable decline, considering that the snowpack started 2020 at 90 percent of its historical average, as The Guardian reported.
"Those numbers are going to continue to go down," said Swain. "I would guess that the 1 March number is going to be less than 50 percent."
The National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center forecast that the drier-than-average conditions may last through April.
NOAA said Northern California will continue deeper into drought through the end of April, citing that the "persistent high pressure over the North Pacific Ocean is expected to continue, diverting storm systems to the north and south and away from California and parts of the Southwest," as The Weather Channel reported.
As the climate crisis escalates and the world continues to heat up, California should expect to see water drawn out of its ecosystem, making the state warmer and drier. Increased heat will lead to further loss of snow, both as less falls and as more of it melts quickly, according to The Guardian.
"We aren't going to necessarily see less rain, it's just that that rain goes less far. That's a future where the flood risk extends, with bigger wetter storms in a warming world," said Swain, as The Guardian reported.
The Guardian noted that while California's reservoirs are currently near capacity, the more immediate impact of the warm, dry winter will be how it raises the fire danger as trees and grasslands dry out.
"The plants and the forests don't benefit from the water storage reservoirs," said Swain, as The Mercury News reported. "If conditions remain very dry heading into summer, the landscape and vegetation is definitely going to feel it this year. From a wildfire perspective, the dry years do tend to be the bad fire years, especially in Northern California."
- Is California heading for another drought? - Los Angeles Times ›
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- California Emerged From Drought and Is Still Catching Fire - The ... ›