(AU SMH) The Climate-Change Changes The Politicians Don’t Want To Talk About

Sydney Morning Herald - Ross Gittins

Author Ross Gittins is the Economics Editor of The Sydney Morning Herald

It’s strange to think that both sides of politics are leading us to a policy-free federal election campaign at a time when we have so many problems we should be debating.

Not that the parties won’t have policies written on a bit of paper somewhere, but that they don’t want to talk about them.

Why not? Because any policy you propose can be used by your opponent to spread scare stories about your intentions. Last time, for instance, Scott Morrison used Labor’s support for electric vehicles to claim it was out to destroy the weekend.

Consumers will save money and reduce emissions when all new houses are all-electric. Credit: Simon Letch

This time, one issue neither side wants to dwell on is climate change. We have – at long last – reached bipartisan agreement on getting carbon emissions down to net zero by 2050.

And on the question of how far we should have got by 2030 (yes got, not gotten; you may have reverted to English as it was spoken when the Pilgrim Fathers left England in 1620, but I haven’t), the parties are offering a genuine choice between ambitious and unambitious.

But neither side wants to talk about how we’ll get to net zero. Which leaves us in debt to a top energy expert, Tony Wood, of the independent think tank the Grattan Institute, who does want to talk about it.

Wood and his team flesh out something we know: that the main strategy is to get as much as possible of the energy we need from electricity.

Prime Minister Scott Morrison and Labor leader Anthony Albanese. Credit: Alex Ellinghausen

“Households and business will rely on low – or zero – emissions electricity more than ever as it replaces their current use of petrol and diesel for transport and gas for cooking and heating,” he says.

Thanks to the move to renewables, emissions from the electricity sector have fallen consistently over the past five years and are expected to fall much further over this decade.

But, on present policies, emissions from all other sectors – including transport, industry and agriculture – are expected to stay much the same.

To achieve net zero by 2050, demand for electricity is likely to double, at least. That means installing a lot more wind and solar (including rooftop) to meet this increased demand and to replace existing coal and gas-fired power stations as they’re retired.

As the anti-renewables crowd continually reminds us, this requires much ingenuity, effort and expense to ensure a reliable supply of power across the national electricity grid, despite the ups and downs of demand and the vagaries of wind and sun.

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But it also involves a lot of investment in changing the transmission grid from one that largely moved high-voltage electricity from a handful of big power stations in the country to the big cities, to one that joins up a multitude of small commercial and household sources of solar and wind power.

An increasing proportion of homes will be putting power into the grid sometimes and taking it out other times. The Morrison government is insisting on a large and continuing role for natural gas in the electricity system.

Wood is far from convinced. “The large-scale use of gas as a ‘transition fuel’ – supplying ‘base-load power’ with lower emissions than coal – does not stack up economically or environmentally,” he says.

Nearly 80 per cent of Australia’s hugely increased gas production is exported as liquefied natural gas. It’s sold at the world price, meaning “the good old days of low-priced east-coast gas are gone, making gas an increasingly expensive energy source”.

At present, gas provides about a quarter of Australia’s local energy consumption and contributes close to 20 per cent of our emissions. And whereas electricity prices have been falling, gas prices have been rising.

Gas has been declining as a share of Australia’s power supply since 2014, and this is likely to continue. “Gas will play an important backstop role in power generation when the sun isn’t shining and the wind isn’t blowing – but this role will not require large volumes of gas.”

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In the home, people value being able to choose between gas and electricity for cooking and heating, but this can’t continue. They’ll save money and reduce emissions when all new houses are all-electric.

“The uncomfortable truth is that natural gas is most likely in decline in Australia, and achieving the net-zero target requires that to happen … Attempts to hold back the tide through direct market interventions, such as contemplated in [Morrison’s] National Gas Infrastructure Plan, will probably require ongoing subsidies at great expense to taxpayers.”

As for cars and other light vehicles, achieving net zero by 2050 requires all new cars to be electric or hydrogen-powered by 2035. That’s because, on average, our cars stay on the road for more than 15 years. The alternative is “costly and inefficient measures to scrap large numbers of cars in the 2030s and ’40s.”

To achieve the 2035 target, we need to do what almost every other rich country does. We need to do what the car manufacturers have asked for: set mandatory emissions standards. But neither major party is willing.

Links - Grattan Institute - Orange Book 2022: Policy priorities for the federal government (pdf)

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