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Zero Carbon Science to Zero Carbon Response 
Energy Density & Energy Power
Energy density​​ importance from IPCC 2012 Renewable Energy report.
August 9, 2013 Robert Wilson  The Future of Energy: Why Power Density Matters

Definitions

Energy density is the amount of energy per unit volume or mass (for example, the heating value of a litre of oil).

​​​Power density is typically understood as the capacity deliverable of solar, wind, biomass, hydropower or ocean power per unit area (watts/m2). For batteries the capacity per unit weight (watts/kg) is used.


​Dr. V Smil.  Distinguished Professor Emeritus of Environment and Geography at the University of Manitoba, is widely considered to be one of the world's leading energy experts

​​May 2010  Vaclav Smil Part 1  Power Density Primer: Understanding the Spatial Dimension of the Unfolding Transition to Renewable Electricity Generation  Part I – Definitions

Part V  Comparing the Power Densities of Electricity Generation
2014  Giuliano Buceti Sustainable power density in electricity generation


2013 Hawkins Power Density Separates the Wheat from the Chaff    Kent Hawkins 
2013 TEDx VIDEO A reality check on renewables - David MacKay