Siete interessati a comprare un'auto elettrica o magari a noleggiarla a lungo termine? Alcuni suggerimenti da tenere presente per la manutenzione (che costa il 15% in meno per le 100% elettriche), diverse modalità di ricarica della batteria, garanzie e altri fattori chiave.
1. There Are Two Kinds of Electric CarsThe buzz in 2011 is about all the new electric cars on the road, led by the Chevrolet Volt and the Nissan Leaf. But because these are new products to the U.S. market, we asked Nick Chambers, who has written about next-generation automobiles for the New York Times, Popular Mechanics and others, to cut through the hype and offer some practical tips for consumers interested in buying an electric car. He came up with these nine things you should know about electric cars before making a purchase:
Turbocharger? What's that? In this new world of plug-ins there are really only two types: all-electric cars and plug-in hybrids.
All-electric cars are solely powered by large batteries charged from the grid; when they run out of juice they can't move anymore. The Nissan Leaf (left) is an example of an all-electric car.
Plug-in hybrids have a shorter all-electric driving range using a smaller battery pack. After the battery pack is drained, they can either revert to being a normal fuel-fed hybrid, or they can use fuel to run a generator and recharge the batteries on the fly. The Chevy Volt (right) is an example of a plug-in hybrid.
2. There Are Lucrative Federal and State Incentives to Buy Them
Although the sticker prices for electric cars tend to be higher than similarly-sized and -equipped conventional cars, federal and state governments think they are worth subsidizing and have offered some seriously chunky incentives for you to buy one.
All U.S. taxpayers are eligible for a $7,500 federal tax credit — but only if you have a one-year tax liability that exceeds that amount. If you don't have that much tax liability, don't fret, you can lease the car from the manufacturer and use the entire $7,500 to pay down the lease right off the bat. As a result, Nissan and Chevy — the two electric vehicle manufacturers first out of the gate with mass-market offerings — both have relatively affordable $350 per month lease deals. The federal tax credit will remain in effect for a given EV (electric vehicle) manufacturer until it sells more than 200,000 EVs.
In addition to the federal incentives, many states have sweetened the kitty with their own. For example California has a $5,000 credit, Oregon has a $1,500 one and the State of Washington waves its usual 6.5% sales tax charge. Some states also provide special parking and carpool lane privileges. Nissan's LEAF website has a handy tool to help you figure out what incentives are available where you live.
3. There Are Three Ways to Charge Them
Although the engineers will tell you this is a complicated point of discussion, what it really boils down to is that electric car manufacturers in the U.S. can provide three "levels" of charging support for their vehicles.
Level 1 charging [solo Stati Uniti] happens off of a standard three-prong household outlet. Every electric car comes with a cable that supports this type of charging, but it's slow — only adding about 5 miles of driving range for every hour of charging.
Level 2 charging [Fornitura di base in Europa] uses special wall- or pedestal-mounted equipment unique to electric cars. Even so, it is essentially like charging from a standard household dryer outlet. Level 2 charging is faster than Level 1, adding about 15-30 miles of driving range per hour of charging, depending on the vehicle.
DC fast charging uses industrially-rated, gas pump-sized stations to dump electrons into your car's battery like a firehose. Only some cars support this type of charging, and it's usually an option that costs extra. DC fast charging can add about 80 miles of driving range in a half hour of charging.
4. It's Easy To Install a Home Charging Station, But It Costs Extra (Don't Worry, There Are Incentives)
Although every electric car comes with support for Level 1 charging, most people will want to install their own Level 2 charging station at home so that they can fill up their car's battery overnight — but it's by no means a free endeavor.
Level 2 home charging stations will cost between $1,500 and $2,500 to install, depending on the manufacturer and the equipment chosen. If you have special circumstances, such as a long wiring run, the costs can be considerably more. Sounds like a lot, no? The federal government, again, has a pocketful of cash it's ready to dole out, providing a tax credit of 30% of the cost of purchase and installation, up to $1,000.
5. Public Charging Stations Are Coming, But The Rollout Will Be Slow and Sporadic
So you've got your spiffy new electric car, and you coughed up the dough for your own home charging station. If you're like 80% of Americans, that's likely good enough for most of your driving needs — you'll get to the work and back, and have enough to run typical errands. But what about if you want the same freedom that a gas tank and a filling station ever few miles offers? That's where public charging comes in, providing you the ability to extend your electric car's all-electric range substantially. (The Wattstation, at right, is an example of a public Level 2 charger.)
There is currently a huge push from the EV Project — a $250 million joint federal-private program — to install nearly 15,000 public Level 2 charging stations in a handful of early deployment regions around the United States over the course of 2011. This includes areas of Oregon, California, Washington, Tennessee, Texas, Arizona and Washington, D.C. If you live in one of those regions you will have a relatively robust public charging infrastructure quickly. If you don't, you may have to wait a while unless your community is charging ahead without federal support.
Related: The 10 Best Cities for Electric Cars
6. All-Electric Cars Are for Daily Driving, Not Cross-Country Road Trips
If you buy a plug-in hybrid, you can ignore this because they are capable of taking long-distance trips. However, most of the initial crop of all-electric cars have a range of around 100 miles on a full charge. Some have up to 200 miles, but are quite a bit more expensive. If you have public charging where you live, or you return home and plug-in during the day, you can drive your EV more than 100 miles. Even so, you're not going to be taking them on long trips. Most people who buy an all-electric car will have a second car available for the occasional long trip.
7. You'll Spend Less On Maintenance, But... (Yes, There's a "But")
All-electric cars ditch the thousands of moving parts of a combustion engine and associated transmission for a handful of moving parts in an electric motor. They also have no emissions equipment. As a result you will have very few maintenance costs — no more oil or transmission fluid changes or catastrophic mechanical repairs. And, although plug-in hybrids still have an engine and emissions equipment, they will need far less maintenance than a typical gasoline engine because they will operate as an electric car much of the time.
Even so, EVs have large, expensive batteries that may need to be replaced after 7-10 years. However, in this first crop of electric cars the manufacturers have provided long battery warranties. In the case of both the Nissan LEAF and the Chevy Volt, that warranty is 8 years or 100,000 miles. The average new car buyer owns the car for six years.) In 8 years the price of batteries will likely come down substantially.
8. All-Electric Cars May Not Have Tailpipe Emissions, But They Aren't Emissions Free
Sure, we've all heard the "zero emissions" claim, and some of us have seen it plastered on the side of a Nissan LEAF — but it's not entirely true. About half of the U.S.'s electricity comes from coal-fired power plants, so many drivers are filling up on a dirty fossil fuel – it's just burned a few miles down the road, rather than under your hood. Depending on where you live, this ratio might be more or less — and in places like California or Washington, a large proportion of that electricity comes from natural gas and renewable energy sources, like wind, solar or hydro power.
Even if your electric car is powered by 50% coal there are several studies that conclusively show it will pollute less than the average diesel or gas car, such as this one from the Electric Power Research Institute. (Photo: Istock)
9. Electric Cars Are Really Cheap to Operate, But Expect Higher Utility Bills
Given the average cost of electricity in the United States of about 12 cents per kilowatt hour, you can drive an EV for around three to four cents per mile. At $3.20 per gallon, a 30 mpg gas car costs about eleven cents per mile to drive — plus regular and unexpected maintenance that you likely won't have in an EV. If you drive your EV 50 miles every day, you can expect your electricity bill to increase by half.Al momento i prezzi di acquisto, anche considerando i possibili incentivi all'acquisto a livello nazionale, rimangono alti e non ammortizzabili in pochi anni con i risparmi in manutenzione ordinaria e costi di gestione ordinaria (in Italia circa in media da 2,2 a 4 centesimi al km). Allora cosa fare? Si potrebbe pensare, e qualcuno lo ha già fatto, a contratti d'acquisto flessibili o a noleggio a lungo termine per abbattere i costi di accesso all'utilizzo dei veicoli elettrici, in attesa che i prezzi scendano con l'aumento della produzione di massa nel mondo dei molti, pregiati e costosi componenti che caratterizzano la tecnologia dei veicoli elettrici puri.
Per saperne di più: http://www.thedailygreen.com/environmental-news/latest/electric-car-buying-tips#ixzz1KTRHj5Q3
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