Orders of magnitude (specific energy density)

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This is a table of specific energy densities by magnitude. Unless otherwise noted, these values assume standard ambient temperature and pressure.

List of orders of magnitude for specific energy density

Order of magnitude J/(kg)	Specific energy density	Storage method
102	2.8	Day Laborer (for that day)
	4	Heel-Strike Generator Using Electrostrictive Polymers
103
104
105	2.16	NiMH rechargeable batteries
	6.12	Lead acid car batteries
	6.3	Li-ion watch batteries
106	16	wood fuel
	17	Protein (contains about 4 nutritional calories per gram)
		Carbohydrates (contains about 4 nutritional calories per gram)
	25	ethanol
	29	Alcohol (contains about 7 nutritional calories per gram)
	38	Fat (contains about 9 nutritional calories per gram)
	44 [1]	Petrol (gasoline)
	120	Hydrogen

[edit] See also

• Energies per unit mass

[edit] References

1. ^ Golnik, Arthur (2003). "Energy Density of Gasoline". The Physics Factbook. http://hypertextbook.com/facts/2003/ArthurGolnik.shtml.