Doctor and activist

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Tag: Electric Vehicles

Electric Vehicle (EV) Policy

25 April 2021

The Federal Government has discouraged EV uptake and now the Victorian Government wants to tax them to replace the petrol tax that pays for roads.

This is very silly. Roads do not have to be paid for by petrol tax. Any sort of tax will do. Taxes should be used to encourage sensible behaviour, not discourage it.

One other important aspect is ignored in this video and in most discussions about EVs. That is their possible use to stabilise the electricity grid. If they are charged when there is a lot of renewable energy, e.g. in the solar peak during the day, they can be discharged in the evening, so lessening the evening peak. If EV owners paid the day rate to charge and go the evening rate to discharge, they would make money and offset their vehicle cost.It might be noted that AGL (an electricity supplier) is encouraging electric vehicle fleets so that it can use their batteries to do just this, but hey, why would the government let little people in a on a good deal?The action point here is the write to Victorian Govt to stop the tax and facilitate the grid stabilisation by allowing EV owners to pay and be paid at the rate at the time they charge or discharge.

Please do this if you live in Victoria.

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Interested in Clean Air?

19 March 2021

NSW has a draft Clean Air Strategy and have invited comment.My contribution will be to help solve the climate crisis by introducing electric cars as a major policy initiative. If they were principally charged using renewable energy they could lessen emission from transport, lessen emission from coal fired power and also even the demand for power by plugging in to homes in the peak period and discharging their batteries. The average home battery has less than 10kWh. The new Nissans about to be released have 40kWh. If they were programmed to charge when power is cheap and renewable, and discharge when power is expensive they would be a very major power store, when the fossil fuel lobby (not to mention the Federal Govt.) is talking about needing (fracked) gas for peak load reliability.

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Health Effects of Coal

14 February 2021

Here is Dr Peter Sainsbury, Prof of Public Health. writing about the health effects of coal. Many of the deaths related to the polluting effects are not in Australia, which is not a very reason for us not to be concerned about it.

Some years ago, as we tried to stop the subsidy to Tobacco Growers in Australia, the number of deaths of tobacco-caused disease was compared to the number of jobs in the tobacco industry, which was orders of magnitude lower.

Sainsbury says it will be about 6 deaths per year per job in the coal industry, which is yet another good reason to transfer to renewable energy.

The practice of looking at the number of deaths caused versus the number of jobs created seems a sound basis for looking at the cost benefit of industries. The ‘defence’ industry needs to be looked at in a similar way.

The other interesting fact in this article is that he estimates that Electric Vehicles will be the same price as petrol ones in about 3 years because of the falling price of batteries. Presumably the Morrison government cannot retard progress forever.

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Electric Vehicles: How helpful are they for Climate Change? 5/6/20

There are claims and counter claims for how much electric vehicles (EVs) improve the greenhouse gas situation. The production of batteries is quite energy-intensive, so a large battery car takes about twice as much energy to produce as a normal Internal Combustion Engine (ICE) car.

The ‘payback’ time for that extra energy is about 2 years based on the number of km an average (UK) driver does per year.

But the key variable is how the electricity is generated, both in making the battery and in running the car. If it is made in Asia with coal fired electricity to manufacture the car and then charged with coal powered electricity, there is very little benefit. If the battery is produced by renewable electricity and the car charged with renewable electricity, the savings are more than two thirds by 150,000km.

If you keep your old ICE car for 4 years, it will have produced about the same amount of greenhouse gas as it takes to produce a new electric car. Looked at it the other way, it takes 4 years for a new electric car to pay for itself from an emissions point of view as against paying just for the petrol of an existing ICE car.

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