Introduction, Basic Electric Circuits

1
ECE 333 Green Electric Energy

• Lecture 2
• Introduction, Basic Electric Circuits
• Professor Tom Overbye
• Department of Electrical andComputer Engineering

2
Announcements

• Be reading Chapter 1 and 2
• Homework 1 is 1.6, 1.7, 1.9, 1.12. Due date is
  September 3.

3
If you were in the Midwest in July Illinois Had
the Coolest July on Record
But it wasnt cool everywhere!
4
World Population Trends

• Country 2005 2015 2025
• Japan 127.5 124.7 117.8 -7.6
• Germany 82.4 81.9 80.6 -2.1
• Russia 142.8 136.0 128.1 -10.3
• USA 295.7 322.6 349.7 18.2
• China 1306 1393 1453 11.2
• India 1094 1274 1449 32.4
• World 6449 7226 7959 23.4
• Source www.census.gov/ipc/www/idb/summaries.html
  values inmillions percent change from 2005 to
  2025

5
Energy Economics

• Electric generating technologies involve a
  tradeoff between fixed costs (costs to build
  them) and operating costs
• Nuclear and solar high fixed costs, but low
  operating costs
• Natural gas/oil have low fixed costs but high
  operating costs (dependent upon fuel prices)
• Coal, wind, hydro are in between
• Also the units capacity factor is important to
  determining ultimate cost of electricity
• Potential carbon tax major uncertainty

6
Ball park Energy Costs
Source http//www.oe.energy.gov/DocumentsandMedia
/adequacy_report_01-09-09.pdf
7
Natural Gas Prices 1990s to 2009
Marginal cost for natural gas fired electricity
price in /MWh is about 7-10 times gas price
8
Recent Coal Prices have Spiked
9
Our Vanishing Resources A View from the Past
(1969)
Bars tell whenthe selectedresourcewill run
out(based on1969 consumption,assumingno new
reserves)
Source Science Year, The World Book Science
Annual, 1969, Field Enterprises Educational
Corporation, Chicago, IL, 1969
10
Course Syllabus

• Introduction, fundamentals of electric power
• Electric power grid, conventional generation
• Distributed generation technologies
• Economics of distributed resources
• Wind power systems
• Energy storage
• The solar resource
• Photovoltaic materials and systems
• Other renewable energy sources