個案總覽

依發行單位、學門或關鍵字,找到適合的教學個案。

  • BrightSource: Challenges and Prospects for a Concentrated Solar Power Plant

    The case presents the challenges confronting BrightSource, a company building a commercial-scale concentrated solar power plant in California in 2013: 1) environmentalists wanted to protect a threatened species at the site of the new plant, 2) competing solar power technology had become much cheaper in recent years, and 3) the company had been unable to get investors for its new thermal storage technology, which could be a game changer for the industry. When BrightSource was in the planning stages of Ivanpah, a 400-megawatt solar power plant in the Mojave Desert, the company encountered opposition from environmentalists because the federal land specifically set aside for the facility was also the habitat of the desert tortoise, a threatened species under the Endangered Species Act. While solar energy was a positive step toward increasing renewable energy resources, and Ivanpah would power 140,000 homes during peak hours, local environmentalists were equally concerned about the survival of the desert tortoise. The case describes the steps BrightSource took to respond to the concerns raised by the environmentalists and build the plant, addressing both climate change and protecting local habitats. Company management also faced challenges from the changing economics of generating solar power due to developments in competing systems and technologies. Students are asked to consider whether the technology that BrightSource is using, Concentrated Solar Power (CSP), is the right choice for the future of the industry, given that the cost of competitors' technology, Photovoltaics (PV), had dropped dramatically in the previous few years. BrightSource also had a new thermal storage technology that would allow it to provide electricity on cloudy days, thereby significantly increasing output and the profitability of future power plants, but investors so far had not come on board, citing the risk and expense of the building out the technology.
    詳細資料
  • Natural Gas and Its Role in the New Energy Dynamics

    "Natural Gas and Its Role in the New Energy Dynamics" presents a comprehensive look at new natural gas extraction technology (hydraulic fracturing or "fracking" and horizontal drilling), as well as the economic and climate effects of the recent dramatic increase in unconventional natural gas production and consumption. It discusses the impact of the low natural gas prices in the U.S., as well as the lucrative arbitrage opportunities in transporting liquified natural gas (LNG) to Europe and Asia, where prices could be as much as five times higher than those in the U.S. The case also explores the new energy dynamics created by the natural gas boom, most notably the significant decrease in U.S. coal production and consumption due to low natural gas prices. It looks at other options for coal companies, such as exporting more coal to China, and Carbon Capture and Storage (CCS). The potential for natural gas to replace oil as a transportation fuel is also discussed The question presented to students by the case is whether the executive director of a fictional environmental group should support the use of natural gas, and if so, under what conditions. Reasons for supporting the use of natural gas include reducing the use of coal in the U.S., a key goal of many environmental groups. When burned, natural gas emits only half as much carbon dioxide as coal-so the substitution could positively impact climate change. However, data on the climate effects of LNG and compressed natural gas (CNG) in certain uses-such as in transportation fuel-are still incomplete. In addition, there is evidence that fracking may cause local environmental damage and that methane leakage must also be taken into account.
    詳細資料