Chapter 2: Why Energy?
Work in Progress
This chapter is under development. See Issue A4 and Issue A5 for contribution opportunities.
Overview
This chapter argues that energy is the optimal backing for a global currency — superior to gold, commodity baskets, labor, or pure fiat.
2.1 The Backing Problem
Any currency must answer: What gives it value?
Fiat's Answer
"Trust in the issuing government."
Problem: Governments can (and do) abuse this trust. Inflation, devaluation, and seigniorage extraction are endemic.
Gold's Answer
"Scarcity and historical consensus."
Problem: Gold's value is ultimately arbitrary — a collective agreement to value a shiny metal. And gold supply grows ~1-2% annually while economies grow faster, creating deflationary pressure.
Energy's Answer
"The capacity to do work — the substrate of all economic activity."
This is different. Energy isn't arbitrarily valuable. It's valuable because nothing happens without it.
2.2 Energy as Economic Substrate
The Thermodynamic View
The economy is, at its most fundamental level, an entropy-management system:
- Raw materials (low entropy) → Products (organized, lower entropy locally)
- This organization requires energy
- GDP measures the rate of this entropy management
- Energy is the limiting factor
The Correlation Evidence
GDP and energy consumption are tightly correlated:
| Country | GDP per capita | Energy per capita | Ratio |
|---|---|---|---|
| USA | $76,000 | 284 GJ | 267 |
| Germany | $51,000 | 148 GJ | 345 |
| China | $12,500 | 102 GJ | 123 |
| India | $2,400 | 26 GJ | 92 |
The correlation holds across:
- Different countries
- Different time periods
- Different economic structures
Decoupling Debates
Some argue economies can "decouple" — growing GDP without growing energy use.
Evidence suggests: - Relative decoupling is real: Energy intensity (energy/GDP) falls with development - Absolute decoupling is rare: Total energy use continues rising in most growing economies - Efficiency gains often trigger rebound effects (Jevons paradox)
For currency backing purposes, the key insight is: Energy remains essential even as efficiency improves.
2.3 Comparison to Alternatives
Gold
| Criterion | Gold | Energy |
|---|---|---|
| Intrinsic utility | Limited (jewelry, electronics) | Universal (all activity) |
| Supply growth | ~1-2%/year | Can grow with investment |
| Distribution | Geological luck | Producible anywhere |
| Measurability | High | High (improving) |
| Deflationary risk | High | Low (supply expandable) |
Commodity Baskets
The IMF's SDR and various commodity-basket proposals face:
- Weighting disputes: Who decides how much wheat vs. copper?
- Manipulation risk: Countries can game specific commodities
- Storage costs: Physical commodities require warehousing
- Heterogeneity: Commodities aren't fungible
Energy as backing has some of these challenges (weighting different energy forms) but is more fundamental — commodities themselves require energy to extract and process.
Labor
Labor-backed currency proposals (time-banking, etc.) struggle with:
- Productivity variation: An hour of surgery ≠ an hour of ditch-digging
- Measurement: How do you verify labor claims?
- Automation: What happens as robots replace human labor?
Energy sidesteps these by backing the input that makes all labor productive.
Carbon Credits
Carbon credit systems price an externality (emissions). While valuable for climate policy, they're:
- Negative backing: Valuing what you don't emit
- Verification-heavy: Easy to game
- Policy-dependent: Value depends on regulatory decisions
Energy backing is positive — valuing what you do produce.
2.4 The Intrinsic Value Argument
Gold Has No Intrinsic Value
This is controversial but defensible. Gold's monetary value far exceeds its industrial utility. If gold lost monetary status tomorrow, its price would collapse 90%+. Its value is fundamentally a coordination game — valuable because others value it.
Energy Has Intrinsic Value
Energy would be valuable even if not used as currency backing because:
- You cannot manufacture goods without energy
- You cannot transport goods without energy
- You cannot provide services without energy
- You cannot sustain life without energy
This isn't circular. Energy is instrumentally valuable for everything else, not just because we agree to value it.
The Philosophical Point
A currency backed by something intrinsically valuable is more robust than one backed by collective agreement alone. Collective agreements can collapse (see: every fiat currency hyperinflation). Physical necessity cannot be collectively agreed away.
2.5 Energy's Properties as Money
Good money has traditionally required:
| Property | Energy's Performance |
|---|---|
| Divisible | ✅ Infinitely (joules, kWh, etc.) |
| Durable | ⚠️ Complex — reserves vs. production |
| Portable | ⚠️ Depends on form — this is a challenge |
| Recognizable | ✅ Modern metering is precise |
| Scarce | ✅ Requires real investment to produce |
| Fungible | ⚠️ Different forms — needs basket weighting |
The challenges (durability, portability, fungibility between forms) are real but addressable through:
- Basket design: Weighting different energy forms
- Reserve vs. production: Combining stock and flow measures
- Verification infrastructure: Modern IoT and satellite monitoring
2.6 The Supply Expansion Feature
Gold's Fatal Flaw
Gold supply grows ~1-2% per year (mining output). Global GDP grows ~3%+ per year. Under a gold standard, this mismatch creates deflationary pressure:
- Not enough money to represent growing economy
- Prices must fall
- Falling prices discourage investment
- Economic stagnation
This is why the gold standard was abandoned — it couldn't accommodate growth.
Energy Supply Can Match Growth
Energy production can be expanded by:
- Building new power plants
- Developing new oil/gas fields
- Installing solar/wind
- Nuclear construction
- Future: Fusion, space-based solar
Critically, expanding energy supply requires real investment. You cannot "print" energy. But you can grow energy production to match economic growth, avoiding deflation.
The Goldilocks Property
Energy backing is: - Not too rigid (like gold) — supply can grow with investment - Not too loose (like fiat) — cannot be created by decree
This "goldilocks" property is unique to energy among potential backings.
Key Takeaways
- Energy is the substrate of all economic activity, not an arbitrary store of value
- GDP-energy correlation demonstrates the fundamental link
- Energy backing avoids both gold's deflation problem and fiat's manipulation problem
- Energy supply can grow with real investment but cannot be "printed"
- Implementation challenges (fungibility, verification) are addressable
Further Reading
- Smil, V. (2017). Energy and Civilization: A History
- Ayres, R. & Warr, B. (2009). The Economic Growth Engine: How Energy and Work Drive Material Prosperity
- Hall, C. & Klitgaard, K. (2018). Energy and the Wealth of Nations
- Keen, S. (2020). "The appallingly bad neoclassical economics of climate change"
Discussion Questions
- If energy is so fundamental, why wasn't it used as currency backing historically?
- How do we handle energy forms with very different characteristics?
- What happens to energy-backed currency in a post-scarcity energy scenario?
- Is the intrinsic value argument philosophical sleight-of-hand?