ECE4762011_Lect4 - Lecture 4 Power System Operation...

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Unformatted text preview: Lecture 4 Power System Operation Professor Tom Overbye Department of Electrical and Computer Engineering ECE 476 POWER SYSTEM ANALYSIS 2 Reading and Homework Moving 1 st Exam? Oct 11 or 13? For lectures 4 through 6 please be reading Chapter 4 we will not be covering sections 4.7, 4.11, and 4.12 in detail though you should still at least skim those sections. HW 1 is 2.9, 22, 28, 32, 48; due Thursday 9/8 For Problem 2.32 you need to use the PowerWorld Software. You can download the software and cases at the below link; get version 15. http://www.powerworld.com/gloversarma.asp Direct PowerWorld download page is http://www.powerworld.com/DemoSoftware/GloverSarmaSimdwnl dv15.asp 3 State Variation in Electric Rates 4 The Goal: Customer Choice 5 The Result for California in 2000/1 OFF OFF 6 The California-Enron Effect Source : http://www.eia.doe.gov/cneaf/electricity/chg_str/regmap.html RI AK electricity restructuring delayed restructuring no activity suspended restructuring WA OR NV CA ID MT WY UT AZ CO NM TX OK KS NE SD ND MN IA WI MO IL IN OH KY TN MS LA AL GA FL SC NC W VA VA PA NY VT ME MI NH MA CT NJ DE MD AR HI DC 7 Natural Gas Boom, Bust and Boom 8 August 14 th , 2003 Blackout 9 2007 Illinois Electricity Crisis Two main electric utilities in Illinois are ComEd and Ameren Restructuring law had frozen electricity prices for ten years, with rate decreases for many. Prices rose on January 1, 2007 as price freeze ended; price increases were especially high for electric heating customers who had previously enjoyed rates as low as 2.5 cents/kWh 2009 average residential rate (in cents/kWh) is 9.08 in IL, 7.62 IN, 9.38 WI, 7.37 IA, 15.52 NY, 6.60 WA, 13.20 in CA, 9.82 US average 10 The Rise of Renewables Currently about 4% of our electric capacity is wind The up/downs in 2001/2 and 2003/4 were caused by expiring tax credits 11 The Smart Grid The term Smart Grid dates officially to the 2007 Energy Independence and Security Act, Title 13 (Smart Grid) Use of digital information and control techniques Dynamic grid optimization with cyber-security Deployment of distributed resources including Customer participation and smart appliances Integration of storage including PHEVs Development of interoperability standards 12 Smart Grid Perceptions 13 In the News: Local Electricity Suppliers On Monday (Aug 29) the News-Gazette had a story about alternative electricity suppliers finally entering the Ameren residential market For example, BlueStar Energy offers electricity at a fixed price of 5.175 cents/kWh versus Ameren at 5.646 cents/kWh. There are other rate options as well so consumers need to shop around for what works best You still pay some money to Ameren for the use of the wires, just not for energy Check out www.pluginillinois.org 14 In the News: Illinois Smart Grid Bill On Monday (Aug 29) legislation to modernize the Illinois electric grid was sent to Governor...
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ECE4762011_Lect4 - Lecture 4 Power System Operation...

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