Showing posts with label hybrid cars. Show all posts
Showing posts with label hybrid cars. Show all posts

Thursday, October 06, 2011

Cars are slowly getting greener and cheaper, despite manufacturers' claims

Smart cars in London
Average CO2 emissions from cars have now dropped to 140g CO2/km, and prices have fallen in real terms, with Fiat, Toyota and Peugeot-Citroen leading the pack with Europe’s cleanest fleets, and Volvo managing the largest cuts in CO2 on average in 2010 (9%).

All in all, the average car sold in Europe last year was 4% more fuel efficient, emitted 4% less CO2, and yet was 2.5% cheaper in real terms than the year before.

The news comes in the sixth report of T&E – European Federation for Transport and Environment - on the annual progress Europe’s major car manufacturers have made in reducing CO2 emissions and fuel consumption of new cars.

It criticises Honda and Mazda's new cars for actually having increased emissions. Daimler has the worst average CO2 emissions of major manufacturers, followed by Volvo – despite its efforts to improve.

The price falls and average performance improvements are contrary to earlier claims by manufacturers that costs would increase if they had to comply with EU legislation to reduce emissions.

The European Automobile Manufacturers Association (ACEA), which represents car-makers such as BMW, Daimler, Fiat, Ford and General Motors, had previously warned that being forced to meet an EU target of 130g CO2/km by 2012 would "lead to a price increase per car of up to €3,000 on average", causing European job losses, and the relocation of car plants outside the EU.

Jos Dings, director of Transport & Environment commented: “The car industry has consistently resisted fuel efficiency regulations by complaining that cars would become ‘unaffordable’. But car emissions have now dropped to 140g CO2/km and that simply hasn’t happened; prices have actually fallen in real terms.”

European car manufacturers are opening factories outside the EU, to some extent, with Volkswagen being the latest one to locate a plant in China. It will join Nissan, Daimler and other carmakers, by producing its Tantus model in Shanghai, but the market for the vehicles is said to be largely within China itself.

The venture does not necessarily mean jobs being lost in the EU, and it could even be cited as evidence that EU encouragement to manufacturers to improve environmental performance helps with their export potential and competitiveness.

The improvements in emission reductions follow a trend, from an average of 196g CO2/km in 1997 to 174g CO2/km in 2008, according to another report, Energy use and CO2 emissions, published this summer by the UK's Institute of Advanced Motoring (IAM).

And the fall in real terms of prices of fuel-efficient cars looks set to continue.

According to a recent study for the Low Carbon Vehicle Partnership (LowCVP), the total cost of owning an electric or hydrogen vehicle is likely to approach those of conventional cars within 15-20 years.

EU targets for vehicle emissions


The EU is currently committed to cutting greenhouse gas emissions 80-95% by 2050, compared with their level in 1990, which will be quite a task since latest figures from the Emissions Database for Global Atmospheric Research (EDGAR) and other sources show global carbon dioxide emissions have increased by a worrying 45% since 1990.

In order to achieve the planned reduction at the lowest cost, the EU's Roadmap for moving to a competitive low carbon economy in 2050 estimates that transport-sector emissions should be cut by 50-70% by 2050.

Current targets, set in 2009, are that from the beginning of 2012, emissions from new cars should not exceed 130g CO2/km and 120g CO2/km by 2015. There is a tentative target for 2020 of 95g CO2/km, to be confirmed in 2013, following the new consultation on reducing greenhouse gas emissions from road transport by the EC's Directorate-General for Climate Action.

The online questionnaire, which individuals and organisations can answer until 9 December, solicits opinions on Heavy Duty Vehicles and whether there should be regulations set now for after 2020.

One criticism of current regulations is that cars are classed by weight, rather than overall performance. A consequence of this is that in Germany, a new labelling scheme gives small efficient models such as the Smart and Fiat Panda a ‘D’ category, while the Audi Q7, a large SUV, gets a green ‘B’ rating.

While carbon dioxide emissions from other sectors in the EU are generally falling, those from road transport have continued to increase since 1990 and now form about a fifth of the EU's total.

The IAM research says that cars generate 14% of all CO2 emissions in the UK, compared to 10% globally.

But we can get too obsessed with small differences in the efficiency of vehicles, when other factors also contribute to emissions.

As IAM director of policy and research Neil Greig says, it's "driving style that is crucial - the best fuel-saver is a light right foot and anticipation of the road ahead.”

The benefits of electric vehicles


This applies to EVs - electric vehicles - just as much as conventional ones. The range of one of these can be increased by an average 20% using the right technique, according the the Energy Saving Trust's Smarter Driving pilot programme.

The Energy Saving Trust has published a new video guide - Living with an electric car - about the benefits and limitations of owning a vehicle like the Nissan Leaf.

Presented by Robert Llewellyn of Red Dwarf and Scrapheap Challenge fame, it looks at charging, range and especially the cost savings from going electric.

It says that driving a small family hatchback with an efficient diesel engine would cost about £4,200 +VAT in diesel at current fuel costs to drive 10,000 miles per year for 4 years.

But a similar sized electric car would cost around £960+VAT at current electricity prices; assuming half of the electricity is provided through an “economy 7” or a similar tariff.

Vehicle Excise Duty (VED) and parking and access charges are also cheaper.

Tuesday, September 13, 2011

Auto-makers vie to wow public with the coolest eco-cars

Fisker Surf hybrid car
It's back to the future with the coolest electric cars at the Frankfurt Car Show, which is showcasing a fleet of revolutionary, green, efficient, and quiet vehicles – as virtually every automaker is pushing out a low-carbon model or three to fit every type of market.

The first cars were electric. A hundred years ago a bus company in America ran intercity services, lifting spent batteries out and replacing them with charged ones in double quick time at depots at each terminus.

Internal combustion engines took over because they were easier to use and because of the independence they gave their owners. Now, it's back to the future, as personal mobility is the key.

Electric two-wheeled vehicles actually outsell cars in some cities, for example in China. And in Europe, sales of electric motorcycles and scooters outstrip electric cars.

And although petrol heads (should we start calling them 'battery-heads'?) want to know which is the fastest electric car (try the Tesla Roadster - 0-60mph in 3.7 seconds with 288bhp), the latest Frankfurt Car Show showcases 'green' vehicles of every type - all in a Hall to themselves for the first time.

Germans are flocking to see them – not least because their country has a goal of one million electric vehicles on the road by 2020.

The Tesla is being followed up soon with a 'Model S' 7-seater with a range of 300 miles on a single charge. But, since the vast majority of journeys are short, it's not range but low running costs that are going to persuade more and more people to shell out the extra £1000s for an electric or hybrid model.

City-based two-seaters are emerging along the lines of the successful Smart car, such as Audi's futuristically-shaped Urban Concept electric car. This gets to 37mph in six seconds, with a top speed of 65mph, and is half the weight of your average city car due to its carbon fibre, plastic and aluminium body.

Smart is not resting on its laurels and is launching the Forvision, which promises to increase range by 20% and has PV cells powering low-energy light-emitting diodes, infrared reflective films and high performance insulating foams.

Volkswagen - currently resisting a Greenpeace campaign to get them to make more low-carbon vehicles - is responding with a low-cost single-seater called NILS with a top speed of 80mph and a range of 40 miles.

Vauxhall is also launching a two-seater called the RAK e which it says has a 60 mile range and reaches a top speed of 75mph. It does 0-60mph in under 13 seconds and weighs just 380kg.

Renault, already turning out four electric cars – the Fluence, Kangoo EV, Twizy and Zoe – is launching a fifth, called the Frendzy (who thinks up these names?), at Frankfurt. This half-van, half-car obtains 59bhp using a lithium-ion battery pack and has a side with doors and side windows for the family to climb in; and on the other side a sliding door with an integrated 37-inch widescreen display at the rear, which can display work messages or advertising, linked to a BlackBerry PlayBook tablet computer.

In van mode it can store 2250-litres of cargo of many shapes due to a flexible fabric roof, or morph into a family car with seats folding out of the floor and the colour scheme changing.

BMW has two models on show - the i3, a small, electric, city-style 4-seater, and the i8, a fast, electric-petrol hybrid that features in the next Mission Impossible film starring Tom Cruise. Both will leave the production lines in 2013.

They, like other modern cars, are being built using light-weight carbon fibre composite material borrowed from space vehicles.

Forced by legislation to improve their efficiency in terms of miles per unit of fuel, making their cars weigh less is one way that manufacturers are meeting these targets.

The 3-litre barrier


Over its whole range, the German auto-maker has cut its 2006 average of 186 grams of CO2 per km to 148 grams by 2010. Other tricks to achieve this 20% improvement include changes to the engine, aerodynamics, components, a new stop-start button, turbo air vent control and regenerative braking.

Its goal is to break the '3 litre' barrier - travel 100km on 3 litres of fuel. It's almost there: its 2012 116d model with 116 PS needs 3.8 litres per 100 km and emits 99 grams of CO2, a big improvement on its 2011 model with 4.5 litres and 118 grams.

Turbo-chargers increase the air entering engines, which Alex Ismail, CEO of Honeywell Transportation Systems, says can boost fuel economy by 20% for petrol cars and an incredible 40% for diesel.

He says that this technology is going to mean fossil-fuel cars will be around for a long time yet, as it will help manufacturers meet the ever-tougher emissions-regulations that legislators around the world are setting.

"Despite the buzz around electric vehicles, it's clear that automakers are looking primarily at turbo charged engines to help quickly green their fleets and meet the regulatory targets," he says.

Globally, vehicles are responsible for about 10% of total greenhouse gas emissions.

Hybrids proliferate


More and more electric-petrol hybrids are set to hit the roads, hot on the exhaust trail of the Chevrolet Volt, which emerged in 2010. Toyota has a Prius-based plug-in hybrid scheduled for 2012 and Ford's C-MAX Energi plug-in hybrid follows in 2013, with other models due from Daimler and BMW.

In fact Toyota is extending the Prius brand into a family, with a seven-seater too, known as the Prius+. The plug-in version is claimed to have CO2 emissions as low as 49g/km.

For the top-end American family market, Henrik Fiskar is launching an incredibly sleek hybrid 5-seater, due for production in 2013, that can do 300 miles, with 981 lb-ft of torque, and acceleration of 5.9 seconds to 60 mph, with a top speed of 125 mph.

Even Jaguar is going green, with a two-seat hybrid known as the C-X16 Concept that uses a Formula 1 style hybrid boost which lets it do 0-62mph in a blistering 4.4seconds, reach a top speed of 186mph, on a CO2 emission rating of just 165g/km.

Ford is not to be out-done and is touting a 4-seat fastback with a plug-in hybrid called the EVOS Concept, which is taking connectivity to the next stage on the way to the car we saw Tom Cruise driving in Minority Report. It includes a cloud-computing-optimised powertrain that knows when to save energy and switch modes, based on the predicted travel route, weather conditions and emission zone restrictions.

One thing is sure – manufacturers are falling over themselves to make these next generation low-carbon vehicles seem cool, and that is a sure-fire way to capturing the public's imagination.

Wednesday, June 20, 2007

Google goes solar

Now you can search with a green conscience:
Google Powers Up 1.6 MW Solar System & Hybrid Initiative.

But it doesn't say how much electricity Google actually uses.