LECTURE 2 ENERGY ABUNDANCE. Dr. Rostamkolai. ECE 371 Sustainable Energy Systems. HISTORICAL PERSPECTIVE. There has been a continuous quest for using readily available energy sources by humans The history of earth in terms of time and energy are summarized in the following tables.
Sustainable Energy Systems
without loss of capital
Quads = 1 x 1015 BTU BTU = 2.928 x 10-4 kWh