Bruno Prior

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Bruno Prior

Bruno Prior

@bgprior

Entrepreneur, geek, classical liberal, dad. Energy, environment, economics (esp. Austrian), tech. Skiing, rugby, windsurfing, music. Downhill since the 80s.

South East, England Katılım Haziran 2011
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Bruno Prior
Bruno Prior@bgprior·
The solution to a bad central plan is not a better plan. You are not smarter or better informed than all the resources available to govt. The solution is to recognise that even with those resources, govt never knows enough to make good plans, give it up, and rely on discovery.
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Bruno Prior
Bruno Prior@bgprior·
You're looking at it back to front. We shouldn't spend whatever it takes to make something happen, even if the cost greatly exceeds the benefit. If a social cost is not priced by the market, we should "internalize" it (e.g. through a Pigovian tax) and then it can be taken into account in investment and purchasing decisions. It's up to market players to offer packages that attract customers under those conditions. If they can't, then the cost exceeds the benefit to society and it is right not to do it. If the govt pays more than that, it is a guaranteed loss to society. It's up to me, you and any other entrepreneur to bring down the costs enough that we get the social benefit at a justifiable cost. We (not the govt) should take the risk and the loss if we fail or the rewards if we succeed. That open competitive pressure is what delivers the innovation and efficiencies that benefit society. Subsidies undermine that and result in the stagnant economy we see.
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Lewis Bowick
Lewis Bowick@L__Bow·
@bgprior If the installation premium for a HP vs boiler is typically ~£10k (before grid costs) and the lifetime avoided carbon worth ~£4k, how can a CHMM worth £1-2k close this gap? I see it could cut inefficiency vs grant, but is there £8k inefficiency to cut in an install?
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Bruno Prior
Bruno Prior@bgprior·
This 👇 is quite right. I thought I'd put some flesh on the heat pump subsidy story. In cuckoo industrial-policy economics, grants are supposed to "prime the pump" to drive costs "down the learning curve". If it's working, a grant programme should be time-limited and reducing in value. The Boiler Upgrade Scheme (BUS) has been repeatedly extended, in time, budget and level of support, from £5,000/HP to £7,500, and recently £9,000 for oil/LPG users (with the weird logic that you have to pay the most to encourage those with the most to gain anyway 🤷🏽). There's no industrial-policy logic left. It's not getting cheaper and the only way to accelerate it temporarily is to throw even more money at it. The only justification left is the climate benefit, but what is that worth? Charitably assuming everything works well, a heat pump displacing a gas boiler in an average home saves around 2 tCO2e/yr. Also charitably, let's say the social cost of carbon is £100/tCO2e. To save £200/year, taxpayers have to fork out £7,500. And the homeowner is probably shelling out a similar amount, and saving nothing on their bills. If it's LPG, the carbon saving is very slightly higher, but taxpayers are forking out £9,000. If it's oil, the saving is materially higher (£350), but taxpayers and homeowners are still shelling out around 25 years-worth of savings each upfront. The economics is a nonsense. As the cost isn't coming down, it would take £220bn of tax and a similar amount of household expenditure to decarbonise heat this way, and at the end of it, our energy systems would be screwed, because peak electricity demand, the network capacity needed to carry it, and the dispatchable generation to support it, would have risen from 45 GW to 170 GW! The total cost must be over a trillion, for carbon savings worth generously £60m/year. This is fruit-loops economics and system planning. Knowing the BUS was unaffordable as more than a stopgap, the government developed the CHMM as a radically cheaper support for heat decarbonisation. It was worth £500 at best, and £250 for hybrids even if they saved as much carbon with lower system impacts. The carbon savings would pay for it in 2.5 years, and you could do 1,500,000 homes for the cost of 100,000 homes on the BUS. But in their usual way, they went to the other extreme, and aimed to do it so cheap that no one believed it would work (and yet still managed to generate virulent opposition to a "boiler tax"). Instead of aiming in the middle (say £1,000) where the cost was still justified but the fiscal impact was an order of magnitude lower, they stuck to an impotent level and then doubled down on the unaffordable mechanism (BUS) for virtue-signalling. This is not all Ed Miliband's fault. Much of it pre-dates Labour. Never forget how useless the Tories were. But Miliband doesn't fix it, he makes it worse. Firing Miliband must be one of the first acts of any successor to Starmer who genuinely wants to improve our economic performance. And one of the first acts of Miliband's successor should be to scrap the BUS.
Mark Dampier@MarkDampier

@MyraButterworth @PensionsMonkey @John_Stepek @bgprior @EdConwaySky With Tom, but a restart to drilling and exploration in the North Sea. And ending of Green subsidies. For example why are we subbing heat pumps to the tune of near £1bn pa mainly for wealthy individuals?

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Bruno Prior
Bruno Prior@bgprior·
Such an important and under-appreciated point. The increase in peak demand from 45 to 170 GW is one symptom of that, but as you know, there's a lot more to it than that, none of it good. One of the main drivers of the technology we have been developing is to avoid that consequence from the electrification of heat.
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Damian King
Damian King@RealGreenAcres·
@bgprior Energy consumption isn’t uniform either it’s highly seasonal. Shifting energy demand from the gas network (boilers) to the electricity grid (heat pumps) doesn’t seem like a good idea considering the challenges we already face meeting electricity demand on cold dark winter days.
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AGilhespy
AGilhespy@heatfutures·
@bgprior @WinterSling I am very ambivalent about these subsidies: I have seen BUS spur some significant innovation in the right direction in spite of my political and economic instincts
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Bruno Prior
Bruno Prior@bgprior·
@WinterSling @heatfutures But if some suppliers can provide packages that are viable without the grant, what is the justification for preserving the subsidy for less competitive providers? That's subsidising inefficiency & punishing innovation.
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Bruno Prior
Bruno Prior@bgprior·
@heatfutures @WinterSling In fiduciary terms, that's rational. Hang on to the rent. But if you were responsible for spending taxpayers' money rather than your business, you couldn't justify it, and would scrap it, right?
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Rachel, a Thinker
Rachel, a Thinker@WinterSling·
@bgprior @heatfutures I think the creators of BUS thought it would be like front-loading FiT income/savings. That looks good to a policy-wonk but the two are qualitatively different. Installing a heat pump is a lot more upheaval than getting solar and it’s replacing an existing asset, not adding one.
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Bruno Prior
Bruno Prior@bgprior·
The Swedes have had a tech-neutral carbon tax for 35 years instead of our hopeless mish-mash of "winner"-picking industrial policy, and look where we are now. A simple pricing of the externality plus social mitigations has many benefits besides the direct one. I'm fine with fossil fuels, but they're so great I want them to last as long as possible and hate wasting them needlessly.
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Bruno Prior
Bruno Prior@bgprior·
@heatfutures About 8.5m solid-walled homes, plus a small proportion of cavity or other homes, classified as hard to treat. The best solution would be rebuild them (& double the floorspace while we're at it). While we're stuck with them, mitigations are more practical than trying to fix them.
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AGilhespy
AGilhespy@heatfutures·
@bgprior Our evidence (heat pumps in ~3000 properties) suggest that this is very overblown, what priperty archetypes are you thinking of? Happy to share knowledge if you want to chat. And most houses have double galzing, decent doors and loft insulation - largely all you need
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Bruno Prior
Bruno Prior@bgprior·
@heatfutures The housing stock varies. But there's about 10m homes (1/3 of total) that are v inefficient and yet not economic to improve. And they are often the ones that govt wants to push these technologies at, for "social" reasons. e.g. the ECO scandal.
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AGilhespy
AGilhespy@heatfutures·
@bgprior And claims about our dreadful housing stock are overstated. Even with BUS skewing towards rural/large homes the majority of installs have been well under 10kW. If anything we need heat pumps capable of operating continuously at lower outputs (sub 1kW of heat power)
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Bruno Prior
Bruno Prior@bgprior·
@heatfutures We're doing something similar. But you have to be innovative to create value. The bog standard heat pump install is as I describe. The BUS & regulations disincentivise innovation. If you can deliver those economies, you'll want to scrap the BUS too, & we can clean up the market.
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AGilhespy
AGilhespy@heatfutures·
@bgprior Nah. We’re supporting £50/month fully financed installs inc. ten year maintenance plans that save consumers solid money, certainly enough to recoup that monthly payment if type-of-use tariffs continue. That install type will cover a huge proportion of standard UK homes
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Bruno Prior
Bruno Prior@bgprior·
In Sweden, yes. You have almost no cheap gas option, efficient and spacious buildings, and enough good heating engineers. We don't. Until recently, your electricity-to-oil price ratio was about 2. Ours was about 4. Maybe tighten that to 1.5 vs 3 now. You're laughing all the way to the bank that you're not on fossil fuels for heat, and we still can't make it stack up in an oil crisis! We should have been copying smart Swedish instead of dumb German energy policy for 35 years, but we are where we are, and things don't work in the UK like they do in Sweden.
Bruno Prior@bgprior

Yes, heat pump import costs are low compared to full installed costs. That is less falling prices, more layers of cost on top. Wholesale and retail prices have big margins reflecting inefficiencies. Install cost is worse, from more inefficiencies across the process (esp MCS 🤮). Most people will need a new cylinder. Installs should take a day or two, but often take a week in the UK. Then, as you say, you can often double or triple the cost because of improvements needed to the heating distribution (rads and microbore pipes) and building fabric (most British houses have 💩 efficiency). I wouldn't say rich people taking the grants is a driver, more a reflection that it's mostly the rich who can indulge these costs for the sake of green virtue-signalling. They're not making money out of it - the heat pump isn't cutting their bills. The structural issues are intrinsic (i.e. lousy houses and plumbing), but a big factor in the preservation of the other cost inefficiencies is the grant itself.

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Bruno Prior
Bruno Prior@bgprior·
If a reset speech could make such a big difference, why wouldn't you have announced what you are now promising before you had lost 1500 councillors, not after?
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Bruno Prior
Bruno Prior@bgprior·
Yes, heat pump import costs are low compared to full installed costs. That is less falling prices, more layers of cost on top. Wholesale and retail prices have big margins reflecting inefficiencies. Install cost is worse, from more inefficiencies across the process (esp MCS 🤮). Most people will need a new cylinder. Installs should take a day or two, but often take a week in the UK. Then, as you say, you can often double or triple the cost because of improvements needed to the heating distribution (rads and microbore pipes) and building fabric (most British houses have 💩 efficiency). I wouldn't say rich people taking the grants is a driver, more a reflection that it's mostly the rich who can indulge these costs for the sake of green virtue-signalling. They're not making money out of it - the heat pump isn't cutting their bills. The structural issues are intrinsic (i.e. lousy houses and plumbing), but a big factor in the preservation of the other cost inefficiencies is the grant itself.
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AGilhespy
AGilhespy@heatfutures·
@bgprior Nah they are getting way cheaper at the volume end of the market, but you're right that the BUS statistics are still skewed towards retirees in big rural houses spending £20k as part of much bigger refurb/energy retrofit works
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Bruno Prior
Bruno Prior@bgprior·
It obviously isn't market led. If the point is to discover the right balance because no one knows the right trade-offs at any moment (let alone continuously), then you don't know that the outcome of that discovery process will be "build more clean energy". It might be: our marginal cost of further clean energy is so much higher than the marginal cost of the related climate benefit that we should focus on other improvements for now. If you approach it like economists would and the welfare benefits really point to "build more clean energy", then you'll get that clean energy just the same as (but more economically than) if you picked the winners. But if the experts were wrong (heaven forfend) now or in the future, you will get what gives the best welfare impact, not the expert choice regardless. This matters. If you can't see the difference, please consider that the number of economists who advocate this solution is a good guide to whether it signifies economically.
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Tom Chivers
Tom Chivers@TomChivers·
@bgprior so your objection is that it wasn't clear enough about making it market-led rather than state-led? Fair, but I think it was pretty clear that was what it meant. Maybe I'm being overgenerous
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Bruno Prior
Bruno Prior@bgprior·
"4. Build clean energy and grid infrastructure fast" Oh dear. When you test LLMs on this as a knowledgeable interlocutor, they quickly concede that this assessment was not based on deep analysis, but is simply where a probabilistic amalgamation of informed and uninformed opinion lands you. Which is what they do, of course. But given the range and prevalence of human biases, that is far from an indication of truth. It is more like an indication of what the majority of people would like to be true, or what they have heard is true. If you find a big discrepancy in a case that you know well, you should be sceptical about the "truthiness" of other such assessments with which you are less familiar. When challenged, LLMs recognise that they (& social media, search engines etc) exacerbate the decline of Enlightenment ideals that has been progressing for a century, due to the blurring of the distinction between truth and wish.
Tom Chivers@TomChivers

I got my Claude to do a UK version. … Fun prompt. Below is my honest swing at it for the UK. Caveat upfront: "fix everything switch" overstates things — these are policies where I think the case is unusually strong and the standard objections look weak relative to the upside, not magic wands. Confidence ratings are about "this would meaningfully improve UK welfare/growth if well-implemented," not "this is politically easy." 1. Radical planning liberalisation (housing + infrastructure) Confidence: Very high. Reasoning: The UK's discretionary planning system is the single biggest unforced error in British policy. It drives the housing crisis, suppresses productivity (workers can't move to high-wage cities), worsens regional inequality, slows clean energy buildout, kneecaps infrastructure, and arguably depresses fertility. Most rich-country peers build more housing per capita. Moving to a zoning/rules-based system with by-right approval, looser greenbelt around stations, street votes, and curtailed judicial review on planning would be transformative. Why not done: Homeowners are an enormous, high-turnout voting bloc whose paper wealth depends on scarcity. Greenbelt is politically sacred. The losses are visible and concentrated (a new block next door); the gains are diffuse and slow. Both main parties have flirted with reform and flinched. 2. Council tax revaluation and property tax reform Confidence: Very high it's needed; high it would be beneficial. Reasoning: Council tax bands are still based on 1991 property values. A flat in Hartlepool can pay more council tax than a mansion in Westminster. This is regressive, distorts the housing market, and starves councils. Revaluing — or better, replacing council tax and stamp duty with a proportional property tax or land value tax — is one of the most-endorsed-by-economists reforms going. Why not done: Revaluation creates visible losers (London/South East homeowners) and quieter winners. Treasury also fears the transition. The Mirrlees Review laid this out in 2011 and basically nothing has happened since. 3. Abolish stamp duty on primary residences Confidence: High. Reasoning: Stamp duty has among the worst deadweight losses of any UK tax — it taxes transactions, so it discourages downsizing, labour mobility, and matching people to suitable homes. The empirical literature on this is unusually unified. Why not done: It raises ~£12bn and is invisible to most voters most of the time. Replacing it (ideally with #2 above) needs political capital nobody wants to spend. 4. Build clean energy and grid infrastructure fast Confidence: High. Reasoning: UK industrial electricity prices are among the highest in the OECD, which is quietly hollowing out manufacturing. Cheap, abundant electricity is the most undervalued input to almost every modern industry. Streamlining onshore wind, solar, nuclear (SMRs and large), and especially grid connections and transmission would compound for decades. Connection queues currently stretch into the 2030s. Why not done: Planning (see #1), Ofgem incentives that historically rewarded keeping grid investment low, judicial review, NIMBYism around pylons, and a regulatory culture that treats new build as risky and the status quo as safe. 5. Devolve real fiscal and policy power to cities and regions Confidence: High. Reasoning: The UK is one of the most fiscally centralised democracies in the OECD. Manchester, Birmingham, Leeds, Glasgow are dramatically underpowered relative to peers like Munich or Lyon. Mayors with proper tax-raising power, transport authority, and skills budgets would let cities tailor solutions and compete. Most evidence on agglomeration economics suggests this matters a lot. Why not done: The Treasury genuinely hates losing control of money; this is a deep institutional preference that survives changes of government. Westminster MPs don't like rival power centres either. 6. A genuinely competitive high-skilled immigration regime Confidence: Medium-high. Reasoning: Top-talent immigration is close to a free lunch for receiving countries — fiscally positive, innovation-boosting, and concentrated in tradeable sectors. The UK has the language and the universities; it's leaving money on the table with slow visas, high fees (the NHS surcharge plus visa costs for a family is brutal), and a Global Talent visa that's narrower than it looks. Why not done: Immigration politics is toxic and the public doesn't reliably distinguish high- from low-skilled flows. Total numbers have been high recently, which makes it hard to argue for more of any category even when the composition matters more than the total. 7. Childcare cost reform Confidence: Medium-high. Reasoning: The UK has among the highest childcare costs in the OECD as a share of household income. This depresses female labour force participation, suppresses fertility, and acts as a giant marginal tax on the second earner. The recent expansion of "free hours" helps but the supply-side problem (provider economics, ratios, planning for nurseries) isn't fixed. Why not done: It's expensive, the sector is politically diffuse, and ratios/quality regulations have genuine trade-offs that aren't easy to legislate around. 8. NHS productivity reform plus sustained capital investment Confidence: Medium. Reasoning: NHS productivity has fallen meaningfully since 2019 even as funding rose. The UK has unusually few CT/MRI scanners per capita, old buildings, and weak digital infrastructure. Capital investment with productivity-linked reform (better IT, more diagnostic capacity, GP/secondary care interface) is probably higher-ROI than another marginal headcount increase. Why not done: The NHS is genuinely a political third rail; structural reform gets framed as privatisation regardless of content. Capital is the easiest budget to cut in any given year, so it gets cut repeatedly. 9. Curtail judicial review of major infrastructure Confidence: Medium. Reasoning: HS2, Heathrow, nuclear, transmission lines — UK infrastructure costs are 2–4x peer countries partly because of endless legal challenges and the consultations that anticipate them. A narrower "did the decision-maker follow the process" standard, with tight time limits, would lower costs without sacrificing core rule-of-law protections. Why not done: Constitutionally fraught, lawyers and the legal establishment push back hard, and any government doing this is accused of authoritarianism — sometimes fairly. 10. Reform the pensions triple lock and the wider intergenerational settlement Confidence: Medium-high on the need; medium on whether reform alone "fixes" much. Reasoning: The triple lock ratchets state pension spending up faster than wages or prices and is a major driver of long-run fiscal pressure. Combined with NI exemption for pensioners and protected pensioner benefits, the UK has built a fiscal regime that systematically transfers from young workers to older asset-holders. Untangling this would free fiscal space for investment in #4, #7, #8. Why not done: Pensioners vote at roughly 75% turnout; under-30s at roughly 50%. The maths is unforgiving. A few honourable mentions I cut: tax simplification (genuinely good but rarely "fix everything"), proportional representation (large effects but unclear sign), drug policy reform (good evidence base, narrower scope), regulator growth duties / a serious bonfire of Quangos rationalisation, and reforming the apprenticeship levy. The pattern. Almost every item above is blocked by the same underlying thing: a system that makes losses visible and concentrated while gains are diffuse and slow, in a country where homeowners and pensioners vote heavily. The "switch" in the meme exists; it's just wired to a circuit that the median voter has a strong short-run reason to leave alone. That's not a reason not to flip it — it's a reason the case has to be made repeatedly and honestly. Standard disclaimer: reasonable people disagree on all of this, especially #6, #9, and #10, and "well-implemented" is doing a lot of work in every line above.

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Bruno Prior
Bruno Prior@bgprior·
"Build more clean energy" could be delivered by nationalising the energy system, rampant use of eminent domain with under-compensation, and state construction of large amounts of whichever clean energy and supporting infrastructure its experts recommend. Massive state funding of a clean energy plan would necessitate some combination of increased public debt and interest, loose money, inflation, financial repression, cutting other spending, and even higher taxes (briefly, until Laffer effects collapsed that option, having done even more damage to the economy). It's odds on it would be a disaster for many reasons, but it is consistent with a badly-framed policy like " build more clean energy", and in fact how many people would interpret that policy. It is not consistent with: deregulate, internalise externalities and discover. This is not a nuance. It embodies the lack of economic understanding in most commentary on the subject. As 3649 economists could affirm.
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Tom Chivers
Tom Chivers@TomChivers·
hm. Perhaps I'm being needlessly defensive of Claude, but I think that's harsh. In its writeup it talks about streamlining energy sources and grid connections, which I immediately read as being a reference to regulatory hurdles; it also refers to planning and NIMBYism as a reason why it hasn't happened already. So I agree "build more clean energy" is the outcome rather than the process, but it clearly knows that the process involves sorting out regulation and planning.
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Bruno Prior
Bruno Prior@bgprior·
But the policy wasn't "remove regulatory/planning obstacles in energy". I'd agree with that, and institutional change for a more competitive and unskewed energy market. "Build clean energy" implies that you know the outcome of that. There are significant trade-offs between various renewables, nuclear, fossil fuels (with or without abatement), storage, energy efficiency, demand response, DAC, geoengineering, non-energy climate measures, adaptation, etc. We need to discover the balance (continuously as innovations and circumstances change), not statically pick the winners and try to deliver that. The latter is what we've been doing, to such bad effect. Notice that the thread that prompted yours had "4. Carbon tax with per-capita dividend" instead of this. That is the correct option, as 3649 economists agree in a v unusual degree of consensus for the field (clcouncil.org/economists-sta…). With all due respect, yours is the bad, scientistic alternative.
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Tom Chivers
Tom Chivers@TomChivers·
@bgprior what's your objection to the argument? I don't claim to be an expert, but the policy wonks I follow and respect think Britain's high energy costs are a serious impediment to growth, and that regulatory/planning obstacles are key
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