Renewables, coal or nuclear? This election, your generation’s energy preference may play a surprising role

Renewables, coal or nuclear? This election, your generation’s energy preference may play a surprising role

Christie Cooper/Shutterstock

In an otherwise unremarkable election campaign, the major parties are promising sharply different energy blueprints for Australia. Labor is pitching a high-renewables future powered largely by wind, solar, hydroelectricity and batteries. The Coalition wants more gas and coal now, and would build nuclear power later.

So how might these two competing visions play out as Australia goes to the polls this Saturday?

Research shows clear generational preferences when it comes to producing electricity. Younger Australians prefer renewables while older people favour coal and gas. The one exception is nuclear power, which is split much more on gender lines than age – 51% of Australian men support it, but just 26% of women.

While many voters are focused squarely on the cost of living, energy prices feed directly into how much everything costs. Research has shown that as power prices rise, the more likely it is an incumbent government will be turfed out.

Coal, renewables or nuclear?

About half of young Australians (18–34) want the country powered by renewables by 2030, according to a 2023 survey of energy consumers. Only 13% of the youngest (18–24) group think there’s no need to change or that it’s impossible. But resistance increases directly with age. From retirement age and up, 29% favour a renewable grid by 2030 while 44% think there’s no need or that it’s impossible.

On nuclear, the divide is less clear. The Coalition has promised to build Australia’s first nuclear reactors if elected, and Coalition leader Peter Dutton has claimed young people back nuclear. That’s based on a Newspoll survey showing almost two-thirds (65%) of Australians aged 18–34 supported nuclear power.

But other polls give a quite different story: 46% support for nuclear by younger Australians in an Essential poll compared to 56% support by older Australians. A Savanta poll put young support at just 36%.

There’s a gender component too. The demographic most opposed to nuclear are women over 55.

Younger voters remain strongly committed to environmental goals – but they’re also wary of cost blowouts and electricity price rises. Some see nuclear as a zero emissions technology able to help with the clean energy transition.

Older Australians are more likely to be sceptical of nuclear power. This is likely due to nuclear disasters such as Chernobyl as well as the prospect of nuclear war during the Cold War.

It’s an open question how robust support for nuclear would be if the Coalition was elected and began the long, expensive process of construction. New findings by the National Climate Action Survey shows almost 40% of Australians would be “extremely concerned” if a nuclear power plant was built within 50 kilometres of their homes and another 16% “very concerned”.

These energy preferences aren’t just found in Australia. In recent research my co-authors and I found a clear divide in Sweden: younger favour renewables and nuclear, older favour fossil fuels. Why the difference? Sweden already gets about 40% of its power from nuclear, while renewables now provide about 40% of Australia’s power.

We found younger Swedes strongly favoured renewables – but also supported nuclear power, especially when electricity prices rose. That is because nuclear is perceived to stabilise the supply of electricity. They wanted clean energy, as long as it was reliable and affordable. Our study found older people were not necessarily pro-fossil fuels, but were more focused on keeping energy affordable – especially for businesses and industry.

When electricity prices rose in Sweden, our survey respondents broadly became less concerned about climate change and more likely to be favourable to nuclear energy.

In Australia, the cost of the clean energy transition has crept up. While solar and wind offer cheap power once built, there are hidden costs.

If electricity prices keep rising, we should expect to see declining support for the clean energy transition.

Overcoming the energy divide

During Australia’s decade-long climate wars from roughly 2012 to 2022, climate change was heavily politicised and energy became a political football. Under a Coalition government in 2014, Australia became the first nation to abolish a carbon tax.

Labor took office in 2022 pledging to end the climate wars and fast-track the clean energy transition. But the Coalition has opened up a new divide on energy by proposing nuclear power by the 2040s and more gas and coal in the meantime.

This election, the cost of living is the single biggest issue for 25% of voters in the ABC’s Vote Compass poll. But climate change is still the main concern for about 8% of voters, energy for 4% and the environment 3.5%. Here, Coalition backing for fossil fuels and nuclear may attract some older and younger voters but repel others. Labor’s renewable transition may attract younger voters but lose older energy traditionalists.

Energy preferences could play out through a cost of living lens. Parties pushing too hard on green policies this election risk alienating older voters concerned about rising costs. But going nuclear would be very expensive, and keeping old coal plants going isn’t cheap. Downplaying climate action or dismissing nuclear outright could alienate some younger Australians, who are climate-conscious and energy-savvy.

Policymakers should resist framing energy as a zero-sum game. There is a path forward which can unite generations: coupling ambitious climate targets with pragmatic policies to protect consumers. Transitional supports such as energy rebates, time-of-use pricing or community-scale renewables and batteries can soften any economic impact while building public trust.

Our research suggests electricity price rises can quickly erode support even for well-designed energy policies.

As Australia navigates a complex and costly transition, keeping both younger and older generations on board may be the greatest political – and moral – challenge of all.

The Conversation

Magnus Söderberg does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

Leaked document shows two threatened species could be wiped out at Middle Arm development site

Exclusive: Conservation advocates say assessment shows controversial NT project ‘shouldn’t get past the starting gun’

Two threatened mammal species could be wiped out at the site of a proposed industrial development on Darwin harbour backed by $1.5bn in federal funding, according to a leaked environmental assessment.

Conservation advocates say it shows the controversial Middle Arm industrial project “shouldn’t get past the starting gun based on impacts to nature”.

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Australia’s spiky, shuffling, egg-laying echidna evolved in ‘extremely rare’ event, scientists say

Researchers have compared the monotreme’s traits with the Kryoryctes cadburyi, an ancient water-dwelling creature that lived in Australia more than 100m years ago

Australia’s burrowing echidna evolved from a water-dwelling ancestor in an “extremely rare” biological event, scientists said in a new study of the peculiar egg-laying mammals.

With powerful digging claws, protective spikes and highly sensitive beaks, echidnas are well suited to a life shuffling through the forest undergrowth. But a team of Australian and international scientists believe many of the echidna’s unusual traits were first developed millions of years ago when its ancestors splashed through the water.

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Tempted to turn on the aircon? Science says use fans until it’s 27°C

Tempted to turn on the aircon? Science says use fans until it’s 27°C

New Africa, Shutterstock

Many Australians struggle to keep themselves cool affordably and effectively, particularly with rising electricity prices. This is becoming a major health concern, especially for our most vulnerable people such as the elderly, pregnant women and people with cardiovascular diseases.

Air conditioning is often seen as the only solution to this problem. But relying too heavily on aircon has major downsides. These include hefty electricity bills, increased greenhouse gas emissions, strain on an already weak electricity grid, and dumping heat from buildings to the outside – further heating the outdoor air.

Our latest research, published in the Medical Journal of Australia, highlights a simple yet effective solution: a “fan-first” cooling approach.

The approach is simple: use electric fans as your first cooling strategy, and only turn on air conditioning when the indoor temperature exceeds 27°C.

Fan-First Cooling: The Smart Way to Beat Australia’s Heat Crisis (Federico Tartarini)

The solution: ‘fan-first’ cooling

Electric fans can make you feel more comfortable on a hot day simply by moving the air around you. This helps our body release heat in two ways: improving the transfer heat from your body into the air, and increasing the evaporation of sweat from your skin.

A gentle breeze can make you feel up to 4°C cooler, even when the weather is very hot and humid.

This allows you to increase the aircon set-point (the temperature at which cooling turns on) from 23-24°C to 27-28°C. This simple change can significantly reduce the amount of time your aircon is running, leading to substantial energy savings.

For example, in our previous research we showed raising the office air conditioning set-point from 24 to 26.5°C, with supplementary air movement from desk and ceiling fans, reduced energy consumption by 32%, without compromising thermal comfort.

Don’t fans still use electricity to run?

Yes fans still use electricity, but it’s as little as 3% of the electricity used to run air conditioning. That means you can run more than 30 fans with the same amount of energy it takes to run a single aircon unit.

A basic pedestal fan is cheap to buy (A$20 to $150), requires no installation and minimal maintenance, and can be easily moved around to keep you cool in any part of your house. Simply turn on the fan as soon as you start feeling slightly warm.

Fans cool you, whereas aircon cools the whole space, which is less efficient.

We also previously showed that using fans rather than airconditioning is a more effective emissions reduction strategy than switching from old-fashioned incandescent light bulbs to LED lighting.

The problem with over-reliance on aircon

Globally, the use of air conditioning is rapidly increasing. Aircon units sales have tripled since 1990 and are projected to triple again in 2050. It is becoming the go-to solution to heat management.

Aircon is effective but is expensive to buy, run and maintain.

A recent survey showed while most people have aircon, two thirds did not use it due to cost concerns.

Beyond the financial burden, the environmental impact of aircon is substantial. In Australia, electricity mainly comes from burning fossil fuels, creating greenhouse gas emissions. Even with the growth of renewable energy, the sheer demand for aircon cooling could strain the transition and the grid.

Furthermore, the refrigerants used in most aircon units are potent greenhouse gases. It will also take time to replace older and less efficient aircon units.

Aircon units also release heat into the outdoor environment, worsening the urban heat island effect – the phenomenon where cities are significantly warmer than surrounding rural areas.

Finally, over-reliance on aircon might reduce our ability to cope with heat. If we constantly keep our indoor temperatures very low, our bodies may not acclimatise to warmer summer conditions, making us more vulnerable during power outages.

Multiple external units of air conditioning and ventilation systems installed on the roof of a large building.
Annual sales of air conditioning units have more than tripled globally since 1990. aapsky, Shutterstock

Using fans safely and effectively

While fans offer numerous benefits, it’s important to use them correctly, especially in very hot indoor conditions.

There’s a common misconception that fans should be turned off above 35°C because they might blow hot air onto the skin. This ignores the crucial role fans play in evaporating sweat.

We have established safer and more accurate temperature thresholds for fan use by conducting laboratory studies. Just remember to check the temperature indoors, not outdoors.

Electric fans can be safely used in indoor temperatures up to:

  • 39°C for young, healthy adults.
  • 38°C for older adults.
  • 37°C for older adults taking anticholinergic medications (which can impair sweating).

Above these indoor temperatures, fans could worsen heat strain by increasing cardiovascular strain and core body temperature. In such situations, alternative cooling strategies such as wetting the skin, moving to a cooler place, or turning the aircon on are essential.

Below these thresholds, we have proven, in laboratory studies, that there’s no reason to switch fans off, because they provide further thermal comfort and reduce heat stress.

The sunset casts a red glow on the clouds above the evening city skyline with its tall rooftops.
Climate change means many people are experiencing hotter summers. Zhuravlev Andrey, Shutterstock

Take action now

Based on our field and lab research, we suggest five simple steps to using fans for managing heat at home:

  1. consider buying pedestal or ceiling fans

  2. point the fan at your body and adjust the speed to your liking

  3. wear light clothing and stay hydrated

  4. if you have aircon, increase the set-point to 27-28°C

  5. enjoy a reduced energy bill and increased comfort.

You may also want to ask your employer to install fans at your workplace and share this “fan-first” cooling strategy with family and friends.

Let’s work together towards a more sustainable future by reducing our reliance on energy-intensive air conditioning. This will lead to lower electricity costs, reduced greenhouse gas emissions, and increased resilience to heat.

The Conversation

Federico Tartarini is affiliated with the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).

Angie Bone is a Board Member of Doctors for the Environment Australia.

Ollie Jay receives funding from National Health and Medical Research Council (NHMRC) and Wellcome Trust (UK).