Spend five minutes talking publicly about solar and batteries in Australia and someone will inevitably declare that nuclear is the only serious answer. Usually with great confidence. Sometimes with claims it can be built in a couple of years for a few billion dollars.
Especially on social media, there seems to be a small but highly motivated band of renewable-energy sceptics ready to deploy the same memes on cue. Solar panels going to landfill. Wind turbines harming birds. Photos of children digging for rare earth minerals somewhere overseas. The implication is always the same: renewables are dirty, hypocritical or environmentally destructive.
What I find fascinating is that many of these criticisms are framed as environmental objections. If the bar being set is that no birds can be harmed, no land can be cleared and no minerals can be mined, then the standard is extraordinarily high. By that logic, any large industrial project should be unacceptable.
If a few turbines on a ridgeline are cause for outrage, how would the same critics respond to the land footprint, security perimeter and exclusion zones around a nuclear facility? If clearing paddocks for solar arrays is deemed intolerable, what does that mean for the long-term stewardship of radioactive waste?
You can’t set an absolute environmental purity test for renewables and then suspend it for nuclear.
Out of curiosity, I once asked someone on Twitter — and no, I still can’t bring myself to call it X — why there is so much hostility toward solar. The answer came back quickly: blackouts.
That response reveals something important. There are people who genuinely believe governments and energy companies are trying to build an electricity system that only works when the sun shines and the wind blows. Yes, solar panels generate during daylight hours. That part is true. But the idea that policymakers intend to switch off dispatchable capacity and just hope for the best is a serious misunderstanding of how modern grids are planned and operated.
It’s reductionist logic dressed up as realism.
If you want a real-world reference point, look to the United Kingdom’s Hinkley Point C project.
The promise and the price tag
Hinkley Point C was meant to mark a new era for British nuclear power. Backed by French energy heavyweight EDF, the project received its final investment decision in 2016, construction began in 2017 and it was pitched to be operating in the mid-2020s. The original estimate sat at £18 billion in 2015 prices.
That’s the brochure version.
Today, completion has drifted toward the end of the decade. Costs have ballooned to roughly £31–35 billion in 2015 prices, which translates to more than £40 billion in today’s money. In Australian dollars, that’s edging toward $90 billion for a single 3.2-gigawatt facility.
This isn’t a rookie operator learning on the job. EDF runs one of the largest nuclear fleets in the world. And yet the same pattern appears: delays, overruns, complexity.
The pattern, not the exception
Supporters often argue that one troubled project doesn’t define an industry. Fair enough.
But across Europe and the United States, modern nuclear builds regularly encounter extended planning processes, intricate regulatory hurdles, supply chain bottlenecks and labour shortages. Nuclear plants are among the most complicated pieces of infrastructure humanity attempts. They demand layered safety systems, specialised engineering and enormous upfront capital. Even in countries with established nuclear industries, construction timelines commonly stretch beyond a decade from approval to operation.
Australia would be starting from scratch.
Federal law currently prohibits nuclear power. Removing that barrier is just step one. After that comes building a national regulator, training a skilled workforce, establishing waste management systems, consulting communities and integrating new plants into the grid. Under even optimistic assumptions, it is difficult to see an Australian reactor running before the 2040s.
There’s also a political reality rarely discussed in online debates. Australia already sees fierce opposition to wind farms, solar farms and even transmission lines. It is difficult to imagine a small country town calmly accepting the construction of a nuclear power plant in its backyard.
On paper, nuclear can look tidy and decisive. In theory, it solves everything. But when soil is actually turned and heavy equipment rolls in to an otherwise quiet country town, local sentiment can shift quickly. The same “not in my backyard” reaction that greets wind turbines would almost certainly apply — perhaps more intensely — to a nuclear facility.
Large infrastructure is not built in a vacuum. It is built in communities.
Time is not a footnote
The hidden cost in this debate is time.
If a nuclear project takes 10, 15 or even 20 years from decision to delivery, what fills the gap? Energy markets move quickly. Over the past decade, large-scale solar and battery storage costs have fallen sharply, making utility solar one of the cheapest new generation sources in Australia. Battery projects are now being completed in one to three years.
Storage is the critical piece in this transition. If we continue to improve storage, we dramatically strengthen the case for renewables. Look at the scale of research and development flowing into energy storage globally. Lithium-ion technology has advanced at remarkable speed, with lithium iron phosphate batteries becoming safer, cheaper and longer lasting in a relatively short period of time. Billions of dollars are now pouring into next-generation battery chemistries, grid-scale systems, smart grids and AI-driven demand management.
Start building a nuclear plant today and assume it takes 15 to 20 years to switch on. By the time it’s operating, the current generation of lithium batteries may look as dated as lead-acid systems do now. The storage technologies available in two decades could be vastly more capable, cheaper and more integrated with distributed energy systems.
At that point, a massive, centralised plant built on decades-old assumptions may no longer look like the cutting-edge solution it was once sold as.
Another phrase that often gets thrown around is “energy security”. It sounds solid and sensible, but what does it actually mean? Security from war or terrorism? Protection against storms? Or simply electricity that runs 24/7 without interruption?
If we are talking about physical resilience, a single large power station feeding millions of homes presents an obvious vulnerability. Disable the plant — or knock out key transmission lines — and vast regions can lose supply at once. Centralisation creates scale, but it also creates single points of failure.
Try disabling ten million rooftop solar systems simultaneously. That is a far harder task. A distributed network of generation, storage and microgrids can, in many respects, be more resilient. If one part fails, others continue operating.
As for round-the-clock power, redundancy and backup are engineering challenges, not philosophical ones. Modern grids are designed with firming capacity, interconnection and reserve margins. With storage, diversified generation and intelligent control systems, 24/7 supply is achievable without relying on a single monolithic asset.
No serious energy planner is proposing a grid that relies on sunshine alone. The sun is always shining somewhere. The wind is always blowing somewhere. With transmission, distributed generation, storage and smarter control systems, variability becomes a management challenge — not an existential flaw.
Committing to a long nuclear timeline is effectively a wager that renewables, storage and grid intelligence will stagnate. That’s a bold bet.
Who pays, and when?
The UK government agreed to a 35-year “Contract for Difference” with EDF for Hinkley Point C. If wholesale prices fall below the agreed strike price, consumers make up the difference through their bills.
Another UK project, Sizewell C, has been approved under a Regulated Asset Base model, allowing developers to recover costs from consumers during construction. In practical terms, households contribute before a single kilowatt-hour is produced.
These are not trivial commitments. They stretch across decades.
Meanwhile, at home
While the nuclear debate rumbles on, Australia is already rolling out solar, wind and battery storage at scale. Rooftop solar continues expanding rapidly. Grid-scale renewables connect year after year.
None of this proves nuclear is impossible. It does suggest it is slow, capital-intensive and financially risky for a country with no existing industry.
The education gap in home electrification
Away from the megaproject headlines, there is another challenge emerging much closer to home.
Home electrification has gone mainstream. Rising gas and electricity prices, along with battery incentives, have pushed many households to finally act. But not everyone stepping into this space understands how the electricity market works.
Consider the customer who installed an 18.5kW rooftop solar system, effectively wiping out a $2000–$3000 quarterly revenue stream for their retailer. At first, strong feed-in tariffs made the numbers shine. As those tariffs tapered and network charges rose, bills crept back. Some concluded their solar “wasn’t working”, when in reality it was the retail structure that had shifted.
Retailers face large fixed costs, and as more customers generate their own energy, billing structures become more complex. Confusion grows. Trust erodes.
Batteries are now being marketed as the solution to rising costs, but cheap equipment paired with cut-price installation can create new problems. Increasingly complex systems demand proper design, commissioning and after-sales support.
The building sector has its own homework to do. Weak standards, poor workmanship and designs that prioritise street appeal over efficiency lock households into higher lifetime energy costs. Oversized homes, poor insulation, badly designed roofs and HVAC systems placed outside the insulated envelope all compound the problem.
Education matters. So does accountability.
What are we trying to solve?
Strip away the ideology and the memes, and the energy question becomes practical.
What cuts emissions fastest?
What can be delivered within realistic timeframes?
What minimises financial risk to taxpayers and consumers?
The global evidence so far suggests nuclear power is neither quick nor cheap to deploy in countries without an existing industry. At the same time, Australia is already scaling renewables and storage, while grappling with the real-world challenges of customer education, market reform and better building design.
Energy policy works best when it is grounded in timelines, costs and risk — not wishful thinking.
