18/04/2019

Experts Find 'Integrity Issues' With Coalition's Direct Action Policy

FairfaxNicole Hasham

A panel of government-appointed experts has uncovered "integrity issues" with the Coalition's flagship climate change policy, triggering a warning that some of the emission reductions claimed by Australia may not be genuine.
The findings relate to the Abbott-era Emissions Reduction Fund, established in 2014 to replace Labor's so-called "carbon tax". The Morrison government extended the fund in February with a $2 billion injection of taxpayer funds, and renamed it the Climate Solutions Fund.
An official committee has raised concerns over carbon farming methods under the Emissions Reduction Fund. Photo: Bloomberg
The direct action initiative gives financial incentives, in the form of credits, to projects that reduce carbon emissions or draw them from the atmosphere, such as by revegetating land.
An official panel of experts has identified "integrity issues" with two revegetation methods under the fund. Among the committee's findings are that some projects may have received credits for carbon sequestration that has not yet occurred and may never occur - for example, because the land is not capable of growing forest cover.
In one sample cited in the panel's report, almost half the projects had not achieved the required vegetation seven years after they commenced.
The findings pose a concern because half the 193 million tonnes of emissions cuts claimed by the Coalition government under the fund relate to projects using one of the methods under a cloud.
The Emissions Reduction Fund is the government's central tool for tackling climate change. Credit: Jessica Shapiro
The chair of the Emissions Reduction Assurance Committee, Australian National University law professor Andrew Macintosh, said there was no guarantee that all carbon credits issued to existing projects would accurately reflect the carbon abatement they achieved.
The methods under review, known as carbon farming, involve changes to farming practices such as limiting cattle grazing and managing feral animals, to allow native plants to regrow. The plants draw carbon dioxide from the atmosphere and sequester it as carbon.
Professor Macintosh said that the extent to which projects may have been forward-credited or over-credited could not yet be measured because some still had decades to run.
He said forward-crediting posed one of the greatest material risks to the scheme. This occurs when carbon credits are issued for sequestration that has not yet occurred. If it never occurs - for example if vegetation grows slowly - credits may be wrongly issued.
The government recently introduced changes to the scheme's guidelines. Professor Macintosh said the changes took a stricter approach to new projects than those that had already begun. This was because creating uncertainty in the rules might deter future participation in the scheme.
Proponents of existing projects, and their investors, were also opposed to retrospective changes.
Professor Macintosh said the changes ensured new projects were robust. However he said the government should have more flexibility, within reason, to change the rules for existing projects "to address integrity issues".
Professor Macintosh said projects that required the vegetation to remain intact for only 25 years presented an "elevated" risk because they were less likely to catch up in the case of forward-crediting, in which case "there's an over crediting problem".
"Can I sit here and say there is no chance that existing projects will be forward-credited or over-credited? No I can't. But we will just have to see how the projects perform over the next five or ten years," he said.
He added that the scheme was designed so over-credited projects would in most cases be balanced out by under-credited projects.
Australian Conservation Foundation chief executive Kelly O'Shanassy said the concerns identified in the review "aren't minor technical issues".
"It is further evidence the Morrison Government's climate plan is riddled with holes and cannot be relied upon to do the heavy lifting to cut Australia's growing climate pollution," she said.
Environment Melissa Price said the committee's concerns had been addressed. Credit: Alex Ellinghausen
Environment Minister Melissa Price said the committee raised concerns during the review process that have now been addressed.
"The report, and the changes that the government has already made to these methods, demonstrates the integrity of the Emissions Reduction Fund and its organisational and institutional arrangements," she said.
Labor's climate change and energy spokesman Mark Butler said the party "has been critical of the ERF for years".
"This is an ineffective policy that hasn't seen emissions fall, while costing taxpayers $2.5 billion," he said.

Here’s Why Electric Cars Have Plenty Of Grunt, Oomph And Torque

The Conversation

Nobuteru Taniguc drifting a Tesla Model S in Tokyo, Japan. MASUDA
Australian politicians, including Prime Minister Scott Morrison, have raised the question of electric vehicles’ capacity for “grunt”.
Now I’m by no means a “grunt” expert, but when it comes to performance, electric cars are far from lacking. In fact, Australian electric car owners have ranked performance as the top reason for their purchase choice.
The V8, fuel-guzzling, rev-heads, who are supposedly worried that electric cars mean they will be left driving around golf buggies, should first check out this drag race between a Tesla and a Holden V8 Supercar.

SPOILER ALERT:
The Tesla wins, and by a fair amount.

CarAdvice.com: Tesla Model S v Holden V8 Supercar v Walkinshaw HSV GTS Drag Race.

Internal combustion engine vs electric motor
Internal combustion engines and electric motors are very different. In an internal combustion engine, as the name suggests, small amounts of fuel are mixed with air, and are exploded to drive a series of pistons. These pistons drive a crankshaft, which is then connected to a gearbox, and eventually the wheels.
This is a rather simplified overview, but there are literally hundreds of moving parts in a combustion engine. The engine must be “revved-up” to a high number of revolutions in order to reach peak efficiency. The gearbox attempts to keep the engine running close to this peak efficiency across a wide range of speeds.
All of this complexity leads to a significant amount of energy being lost, mostly through friction (heat). This is why combustion engine cars are very energy inefficient.
So how are electric motors different? Electric motors are actually pretty simple, consisting of a central rotor, typically connected to a single gear. The rotor is turned by a surrounding magnetic field, which is generated using electricity. The added benefit of this design is that it can operate in reverse, acting as a generator to charge the batteries while slowing down the vehicle (this is called regenerative braking).

On the other hand, the electric motor reacts instantly as soon as the accelerator is pushed. Given the minimal moving parts, electric motors are also highly reliable and require little to no maintenance. Their simplicity also means that almost no energy is lost in friction between moving parts, making them far more efficient than internal combustion engines.

Does simplicity translate to more or less grunt?
Combustion engines need to be “revved-up” to reach peak power and torque. Torque is a measure of how much rotational force can be produced, whereas power is a measure of how hard an engine has to work to produce the rotational force.
As shown below, the power and torque characteristics of a combustion engine means that although a conventional car might have a top capacity of 120 kW of power and 250 Newton metres of torque, this is only when the engine is running at high speeds.
Power and torque characteristics of a typical internal combustion engine. Victor Barreto
In contrast, an electric motor provides full torque from zero kilometres an hour, with a linear relationship between how fast the motor is spinning and the power required. These characteristics translate to a vehicle that is extremely fast at accelerating, with the ability to push you back into your seat.
Power and torque characteristics of a typical electric motor. Victor Barreto
What about pulling power?
For over a decade electric motors have been used in mining trucks, sometimes with a capacity greater than 100 tonnes, due to their powerful, instant torque and ability to pull large loads at slow speeds.
While most of these vehicles have been diesel-hybrids, fully electric mining trucks are now being introduced due to their high power-to-weight ratio, low operating costs, and ability to use regenerative braking to - in some cases - fully recharge their batteries on each mine descent.
A 590 kW, 9,500 N.m electric mining dumper truck, known as the eDumper, uses 30 kWh to travel uphill (unloaded, and can regenerate 40 kWh of electricity when driving back downhill fully loaded. Andreas Sutter/eMining AG
Electric motors are also increasingly being used in shipping, again because of their ability to push large loads. In Europe, a number of short-haul electric ships are currently in use. One example is the Tycho Brahe, a 111 metre-long, 8,414 tonne electric passenger and vehicle ferry that operates between Helsingborg, Sweden and Helsingør, Denmark.
Tycho Brahe - an electric vehicle and passenger ferry with 4,000 kWh of batteries. Forsea
The future of grunt
The global transition to electric vehicles is underway. Australians must decide whether we want to capture the enormous benefits this technology can bring, or remain a global laggard, literally being killed by our current vehicle emissions.
A Mitsubishi Outlander PHEV (Plug-in Hybrid Electric Vehicle). Jake Whitehead
While long-distance towing in fully electric vehicles is currently a challenge, in the near future this will no longer be the case with the introduction of long-range electric utes like the Rivian R1T and Tesla Pickup.
In the interim, alternatives also exist, like my own plug-in hybrid electric vehicle. It can tow, drive on the beach, and drive up to 50 kilometres on electricity alone. Charged using my home solar system or The University of Queensland’s fast-charger, it means that more than 90% of my trips are zero-emission.
It is clear that electric cars can provide plenty of grunt for Australians, so let’s make sure we are ready for an electric performance future.

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