CEE_4920_Sust_Energy

CEE_4920_Sust_Energy - CEE 4920 “Engineers for a...

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Unformatted text preview: CEE 4920 “Engineers for a Sustainable World” The role of renewable energy in a sustainable energy future for USA Francis Vanek 11/25/08 Announcements Reminder: ESW final talks Weds 12/3 Please fill in online survey for CEE 4920 CEE 3090 independent study (1-3 credits) available in S’09 OK to have divergent views presented in final papers Follow-up from 11/20/08: National-level Advantages of PHEV Challenge: U.S. faces simultaneous transportation and electric grid problem Grid side: Maintain/increase reliability Incorporate more renewables Systems engineering principle: Broadening boundaries >>> improve solution Potential advantages of PHEVs: 1. If availability of charging PHEVs is spread out over entire 24-hour period, can transmit energy to/from vehicles 2. Control rate of charging in response to availability of renewable energy resources 3. Many technological components for infrastructure system already at or near maturity 4. Other advantages also Fact: US electric generating capacity in use 57% of the time. US passenger car fleet in use 4% of time. Follow-up from 11/20/08: Many options, many benefits from systems-level solutions Options Passenger side Public transportation Nonmotorized modes Telecommuting Change land use patterns Freight side Modal shifting Geographic changes Benefits Reduce congestion Encourage more efficient land use patterns Increased social interaction More opportunities for exercise Others… Outline of talk: steps toward a sustainable energy system Introduction Step 1: reduce demand for energy Step 2: develop renewable energy resources Step 3: support local energy resources Comparison of USA and China (time permitting) Threat posed by runaway growth in CO2 emissions Relative population: Industrial: 1 bil. People Emerging: 5 bil. People Emits, tonneCO2/cap: China: 3.6 USA: 20.0 Effect of China having same per capita emissions as USA: Emissions increase 27,000 MMT to 48,000 MMT! Generation and Use of Energy in USA,...
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CEE_4920_Sust_Energy - CEE 4920 “Engineers for a...

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