Field notes The Energy Transition for the Rest of Us

Steel For Fuel N° 048 of 56 3 Mar 2026

The Return of the Energy Transition

by Andy Lubershane, Partner and Head of Research, Energy Impact Partners

In this note
  1. 01The question
  2. 02The answer
  3. 03The argument
  4. 04What you need to know first
  5. 05Details worth keeping
  6. 06Claims worth citing
  7. 07Where it’s contested

The question

What would it take to get the energy transition moving again after a bad year for it?

The answer

Ruthless prioritization inside constraints he now treats as binding for the foreseeable future. He accepts most of the recent case against climate policy, adds one truth he thinks the backlash is dropping, and argues that anything workable has to satisfy affordability, security, sustainability and demand growth at once. His five priorities are responsible gas, nuclear, solar, a grid twice the size at half the cost, and critical supply chains.

03The argument

The first third of the post is a concession, and most of the voices in it are not his. He reports Dan Yergin calling the whole endeavor troubled, quotes Matt Yglesias arguing in the New York Times that an uncompromising climate left has made it impossible to win the majorities decarbonization would need, and quotes Bill Gates saying the doomsday framing is diverting resources from things that would help more. Lubershane’s own contribution is to accept three of the underlying claims: hydrocarbons are extraordinary resources and substitutes for them are extremely hard, the energy system has enough inertia that forcing rapid change creates losers who will resist, and energy addition matters as much as energy transition. He says outright that he has not always fully wrestled with the consequences of those. What he refuses to drop is a fourth, that climate change is still a problem that needs solving, and he makes that point by quoting the sitting US energy secretary rather than an advocate. The result is the quadrilemma, plus a timing claim he declines to turn into a fifth axis: net-zero by 2050 was never realistic, and he will say only that an 80 to 90% cut takes three or four more decades, or seven or eight.

Priority one is gas, argued from the record rather than from hope. The largest aggregate emissions reduction achieved so far came from gas displacing coal in the US power sector, and he thinks the usual telling understates gas, because gas plants absorbed most of retiring coal’s duty while renewables mostly displaced marginal gas. That complementarity is why he treats gas as renewables’ partner rather than their rival, from grid-balancing generators sited where power is used through to industrial heat, where for a plant with access to ultra-cheap solar he says the ideal setup could well be solar, thermal storage and a gas boiler, so that the solar and storage need not be overbuilt to cover occasional lulls. Geopolitically he wants gas in the mix because he calls expanding its role one of the best ways to give a hydrocarbon superpower a stake in the outcome. Then the catch, and it is quantitative. A methane leak rate of just 2 to 3% materially undermines gas’s advantage over coal, and 2 to 3% is his estimate of the current US average from wellhead to power plant. The load in the phrase “responsible gas” is carried by the adjective.

Nuclear and solar are where he argues against a received view, in opposite directions. On nuclear he grants the three standard objections, cost, schedule and the variance around both, then relocates them: the engineering, supply chain, safety and security requirements make nuclear more dependent than any other resource on doing the same thing repeatedly, which makes it a collective action problem rather than a technology problem. His three conditions follow from that, a very limited number of designs, a deliberately staged pipeline of projects, and proportionate regulation, and none of them is something a competitive market produces, so he concludes that some central planning among government, industry and utilities is necessary. The same reasoning makes him cool on small modular reactors: their cost advantage is a theory running against the known economies of scale in large power plants and in most other heavy industries, only building a lot of them would settle it, and the largest potential buyers each appear to have backed a different design. On solar he attacks the opposite error, that renewables have already won. Comparing levelized costs is the wrong comparison, because intermittent output is not firm capacity; the comparison he thinks honest is renewables’ levelized cost against the marginal fuel cost of burning coal or gas, and on that basis, unsubsidized, fossil generation still wins even in the best American locations. Storage helps in most scenarios and always adds cost. Renewables are also geographically constrained and land-hungry, and he says advocates should concede that with more gravity than they have. Yet solar is still the only resource he gives a fighting chance of reaching the cost of energy embodied in a lump of coal, a line he quotes from his own recent series, which is why the priority is to keep pushing it rather than to declare it finished.

The last two priorities concern the physical substrate. Doubling the grid is what he calls a conservative estimate of what electrification and data centers will require, and it has to happen at roughly half the cost, which points him at technology that lifts the throughput of existing lines and at power electronics. But transmission lands in the same place as nuclear, as a collective action problem whose benefits are diffuse and whose costs are local, and the compromise he thinks it requires is accepting continued investment in oil and gas pipelines alongside the grid. Supply chains then close the loop, because on his framing the energy transition is mostly a mineral transition; copper is the bottleneck he worries about most; and China’s position runs past minerals into the whole manufacturing stack. His conclusion there is unusually blunt for a piece about Western industrial capacity: neither America nor Europe can rebuild that alone, so they should work closely with Korean and Japanese firms while making bigger bets on processes that route around Chinese supply chains. He ends by refusing the obvious reading of his own list. Priorities are temporary stances rather than maps, and a five point plan is something to be wary of.

04What you need to know first

Quadrilemma
His term, and his organizing constraint: energy affordability, security and sustainability, plus keeping up with rapid demand growth, which he and colleagues added recently because of the power demand boom.
Levelized cost of energy
A plant’s capital, fuel and maintenance costs over its whole life expressed as one blended price per megawatt-hour. His objection is not that it is wrong but that it is the wrong yardstick for something intermittent.
Firm capacity
The ability to produce electricity whenever you need it, for as long as you need it. Solar and wind do not have it; coal and gas plants broadly do.
Small modular reactors
Smaller, factory-produced reactor designs, as against the proven gigawatt-scale water-cooled units that nearly all current nuclear construction actually uses.

05Details worth keeping

  • The block quotes are mostly other people: Yglesias, Gates, Energy Secretary Chris Wright at his confirmation hearing, Larry Fink’s 2022 BlackRock shareholder letter, Richard Feynman on the grid, BHP’s lead copper analysts, and Kyle Chan on China’s overlapping industrial ecosystems. The remainder are Lubershane quoting his own earlier posts.
  • A heading promises four inconvenient truths; the prose lists three drawn from the critics, then adds a fourth of his own.
  • Maritime propulsion is offered as a possibly better first market for small reactors than stationary power, on the grounds that ships face emissions rules everywhere, that heavy fuel oil is a weak incumbent, and that shipyards could build reactors. Core Power is the company he names to watch.
  • None of the hyperscaler reactor announcements features the one small modular design already being built commercially in North America, the BWRX-300, a GE Vernova and Hitachi joint venture whose first project broke ground in Ontario.
  • Carbon removal is deliberately absent from the list. He says it has no big role this decade or the next, but expects it to become a priority before the century ends.
  • The post carries 31 figures and this note cannot read any of them. Most of the numbers it relies on are stated in the prose as well, but several are not: solar’s record against forecasts, the transmission-build slowdown, the price index for grid equipment, and the copper supply charts.
  • On manufacturing learning curves he offers a saying rather than a study: you need to megawatt before you can gigawatt.

06Claims worth citing

All figures as stated on 2026-03-03. Each is stated in the prose, though several of the sources named below come from figure captions. Cost figures in particular move fast.

  • Coal’s share of US power generation has fallen from 50% to 15% since the turn of the century, with roughly half the gap filled by gas and the rest by solar and wind. Lubershane, from US Energy Information Administration data
  • Natural gas has roughly half the carbon intensity of coal, measured as direct carbon dioxide per joule of embodied energy. Lubershane
  • A methane molecule traps about 25 times more heat than a carbon dioxide molecule over 100 years, and about 50 times over 50 years. Lubershane
  • Liquefying gas on one continent and regasifying it on another consumes about 15% of the gas shipped, and leaky valves and regulators cause more than half of methane emissions from pipeline infrastructure. Lubershane
  • Nearly a third of new steel capacity under development worldwide is set to use direct reduced iron furnaces, which run on gas rather than coke. Lubershane, from Global Energy Monitor
  • The Vogtle units cost roughly $150-200 per megawatt-hour against $50-100 historically for new gas plants, currently at the upper end of that range given turbine supply constraints. Vogtle took about 15 years to build, ran seven years longer than Southern Company projected and about 150% over budget, and construction financing alone was about 20% of total cost. Lubershane
  • Recent Chinese nuclear projects have been completed at less than a fifth of the cost of Vogtle 3 and 4. Liu et al, Nature, July 2025, cited by Lubershane
  • Dozens of nuclear plants are under construction worldwide, nearly half in China, with the remainder widely distributed but most concentrated in poorer and middle-income countries such as India, Turkey, Egypt and Bangladesh. International Atomic Energy Agency data accessed January 2026, cited by Lubershane
  • Two or three reactor designs per continent is probably the most that can be made viable in twenty years, which he says makes the market an oligopoly. Lubershane
  • Elementl Power announced a deal with Google across three sites totaling 1.8 gigawatts. Lubershane, on an Energy Impact Partners portfolio company
  • Most of the first nuclear plants ever built are still operating at 90% capacity factors, and apart from Chernobyl there are no deaths directly attributable to nuclear power plants globally. Lubershane’s March 2023 post, quoted in this one
  • The cheapest offshore wind is currently three to five times more expensive than the cheapest onshore wind. Lubershane
  • The share of humanity without electricity access has fallen by more than half since the turn of the century, and India now has the world’s third largest high-voltage transmission system and nearly 100% access. Lubershane, from Our World in Data
  • Electricity is just over a fifth of global final energy consumption, a share that has been fairly steady for decades despite electric vehicles, heat pumps and data centers. Lubershane, from International Energy Agency data
  • Electric vehicle adoption has stalled in North America, but more than 30% of passenger vehicles sold worldwide are now electric. Lubershane, from International Energy Agency data
  • Industrial process heat is about a quarter of all global energy consumption. Lubershane
  • A 2021 International Energy Agency report concluded its benchmark sustainable development scenario would need about four times the total mass of critical minerals within twenty years. IEA, cited by Lubershane
  • An electric vehicle uses more than twice as much copper as a petrol or diesel one; primary sulfide ores, historically too expensive to process, are about 70% of known copper resources; copper recycling runs above 50% globally while rare earth recycling is 1-3%. Lubershane
  • Stellantis has written off $26 billion, Ford $19.5 billion and GM $7.6 billion on battery and electric vehicle manufacturing, together a little less than half the capital invested in those segments over five years. Lubershane, from Rhodium Group data
  • Studies have historically found benefit-cost ratios of 2:1 or better for major new inter-regional transmission lines. Lubershane

07Where it’s contested

Nobody argues back; the post has one author and no interlocutor. What it does have is an unusual amount of stated uncertainty, and one explicit change of position.

  • He revises himself. He says he has not always fully wrestled with the consequences of the three truths he now accepts. That is a concession to critics he names, not a rhetorical gesture.
  • The timing hedges are the widest. He will not date the 80 to 90% cut, and says only that we are in the opening stretch.
  • Specific scepticism, stated as such. He doubts there is a practical, affordable substitute for kerosene in aviation. He calls the modular reactor cost advantage entirely theoretical and debatable. He says the right method for picking an optimal resource mix is still a live question among the people who model it.
  • His nuclear pipeline figure is labelled a guess. He has high confidence only that the answer is more than one project, says five may be enough, and offers at least ten staggered over a decade as his best guess.
  • The load-bearing assumption is political and undefended. The whole structure rests on voters continuing to rank affordability, security and growth above emissions for the foreseeable future. He allows room to maneuver at the margins and says public priorities may change over time, but treats the constraint as something to plan around rather than to contest.
  • He sets two nuclear objections aside rather than answering them. Safety and proliferation are explicitly excluded before he takes on cost, schedule and risk.
  • He names his own interest once, and it recurs throughout. He says he is a bit biased about conductor coatings because his firm was an early investor. Every priority is illustrated by at least one portfolio company, so their progress is described by an interested party rather than independently measured.
  • The criticism is in quoted voices. The case against the climate movement is put in Yglesias’s and Gates’s words, and the case for still caring about climate in the energy secretary’s. Lubershane restates the first as three truths of his own and argues the fourth in his own prose after the quotation, but the force of the critique comes from the quoted passages.
  • AI demand is left open. He calls the potential scale enormous and the trajectory beyond the next few years extremely uncertain, and does not use a number.
  • He separates his preference from his analysis. He says he would rather live in a world where America, Europe and China trusted each other enough to collaborate, and that the essay’s job is to accept the world as it is instead.

Cite as: “The Return of the Energy Transition,” The Energy Transition for the Rest of Us, note on Steel For Fuel, March 3, 2026. CC BY 4.0. View the Markdown