Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Energy Storage Density

Energy density - by weight and volume - for some ways to store energy

Energy Storage Density
Energy StorageTypical Energy Densities
(kJ/kg)
(MJ/m3)
Thermal Energy, low temperature Water, temperature difference 100oC to 40oC 250 250
Stone or rocks, temperature difference 100oC to 40oC 40 - 50 100 - 150
Iron, temperature difference 100oC to 40oC 30 230
Thermal Energy, high temperature Stone or rocks, temperature difference 400oC to 200oC 160 430
Iron, temperature difference 400oC to 200oC 100 800
Conventional Fuels Energy Crude Oil 42000 37000
Coal 32000 42000
Dry Wood 12500 - 20000 10000 - 16000
Synthetic Fuels Energy Hydrogen, gas 120000 - 142000 10
Hydrogen, liquid 120000 - 142000 8700
Methanol 21000 17000
Ethanol 28000 22000
Electrochemical Energy Lead-acid batteries 40 - 140 100 - 900
Nickel-cadmium batteries 350 350
Lithium ion batteries 700 1400
Mechanical Energy Hydropower, 100 m head 1 1
Compressed air   15
Flywheel, steel 30 - 120 240 - 950
Flywheel, composite materials > 200 > 100

Related Topics

  • Densities

    Densities of solids, liquids and gases. Definitions and convertion calculators.
  • Thermodynamics

    Work, heat and energy systems.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2008). Energy Storage Density. [online] Available at: https://www.engineeringtoolbox.com/energy-density-d_1362.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































3.27.8

.