Energy without the carbon bill
Reach an industrial energy supply that does not have to be paid for twice.
Everything for this step
- Field guide
- Electricity → 8 sections Energy sources → 14 sections Physics → 12 sections Astronomy → 5 sections Earth sciences → 7 sections
- Builds
- None yet.
- Reference sheets
- 6 sheets on this page ↓ · 7 sheets in Electricity · 16 sheets in Energy sources
- Sciences it rests on
- Physics
- Track
- Electricity, level 3 of 3
Why this matters
The first industrial revolution was financed by a fuel whose full cost only became visible two centuries later. A second attempt has information the first did not, and this is the single most valuable piece of foreknowledge available: you know in advance what the coal bill actually is.
The shape of it
- Take the fossil bridge deliberately and briefly. No society has industrialised without concentrated fuel, and pretending otherwise is not honesty, it is wishful thinking. The realistic goal is to cross it fast and knowingly, not to refuse it.
- Hydro first. You already have water power; a turbine and a generator make it electrical. It is dispatchable, long-lived and needs no exotic materials.
- Wind next, which is mechanically similar and materially cheap, though intermittent.
- Solar photovoltaic is materially demanding — it depends directly on the semiconductor capability you may not have. Solar thermal, by contrast, is achievable much earlier: mirrors, a working fluid and a turbine, using tier-4 skills.
- Nuclear fission is the awkward case. Enormous energy density and no carbon, against fuel cycles, waste that outlasts institutions, and failure modes that punish complacency. It demands not just the engineering but the institutional continuity to steward it for centuries — and institutions are historically far less durable than the waste.
- Storage is the actual problem, not generation. Pumped hydro is the most achievable large-scale answer with tier-3 civil engineering and tier-5 electrics. Batteries, thermal stores and hydrogen all have roles and none is free.
- Reduce demand as a first-class strategy. Insulation, siting, daylight, district heat and simply building things that last are all cheaper than any generation you can build. This is the least glamorous and highest-return option available.
- Build the accounting in from the start. Measure what a process actually costs — energy, materials, and the sinks it fills — and put that number in front of every decision. The first industrial revolution failed not because it lacked the technology but because it lacked the accounting.
Doing it, step by step
The summary above says what has to happen. This says how, with the numbers that decide whether it works.
1 · Build the energy accounts first
The first industrial revolution failed not because it lacked the technology but because it lacked the accounting. Measure energy used by every major process — in kilowatt-hours or megajoules — plus the materials consumed and the sinks it fills: air, water, soil.
Publish an annual energy balance: total use by source and by purpose, and the fossil share. Put energy cost per unit of output in front of every production decision.
2 · Cut demand before building supply
Demand reduction is the least glamorous and highest-return option available. Insulation, orientation, daylight, district heat, and building things that last are cheaper than any generation you can build.
Insulate roofs, walls and floors of heated buildings, draught-proof, and site and orient new buildings for winter sun — see permanent shelter. Measure fuel use per building before and after, and do the cheapest cut first.
3 · Hydro first, with the right turbine
Hydro is dispatchable, long-lived and needs no exotic materials. Power in kilowatts ≈ 9.81 × flow (m³/s) × head (m) × efficiency, and a good turbine reaches 80–90%.
Match the turbine to the head: Pelton wheels for high head and low flow; Francis turbines for medium head; propeller or Kaplan turbines for low head and high flow. Drive a generator at a governed speed. Start from the water power survey you already have.
4 · Add wind, and solar thermal early
Wind is mechanically similar to water and materially cheap, though intermittent — see wind power. Small electrical turbines must never run without a load: a controller diverts surplus to a dump load rather than disconnecting.
Solar thermal is achievable long before photovoltaics: flat-plate collectors — a black absorber under glass — heat water to around 40–70 °C for washing and space heating, and concentrating mirrors raise steam with tier-4 skills. Photovoltaic panels depend on semiconductors: salvage and preserve existing panels, which lose output only slowly and can work for decades.
5 · Solve storage — it is the actual problem
Generation without storage leaves intermittency to someone else. Size storage from the numbers:
- Pumped hydro: energy stored ≈ mass × height × 9.81. 1,000 tonnes of water lifted 100 m stores about 270 kWh, returned at roughly 70–80% round-trip efficiency. It is the most achievable large-scale store with tier-3 civil engineering.
- Hot water tanks: 1 m³ of water stores about 1.16 kWh per °C of temperature rise — cheap daily heat storage.
- Batteries — see electrochemistry — for short-term electrical storage.
Write the storage needed to carry the settlement through its longest calm or dry spell on record.
6 · Treat fission as an institutional question first
Nuclear fission offers enormous energy density and no carbon, against fuel cycles, waste that outlasts institutions, and failure modes that punish complacency.
Before considering it, write down what stewardship requires — independent regulation, trained operators across generations, waste custody for millennia — and honestly assess whether the settlement's institutions can plausibly deliver that. See institutions that outlive people. Adopting fission without institutions plausibly capable of outliving the waste is a named failure.
7 · Retire the fossil bridge on a published schedule
Take the fossil bridge deliberately and briefly — no society has industrialised without concentrated fuel — and treat it as a bridge, not a destination.
Publish a dated plan: fossil use by year, falling to zero, with the replacement capacity and storage scheduled against each cut. Audit progress yearly and publish the result, including missed targets.
Reference sheets
One drawn sheet covering the whole subject at once — the breadth a photograph cannot give, bought at the cost of accuracy. Read them for range and vocabulary, never as the thing you identify from.