Energy

Overview of Energy Production

  • Introduction to the basics of energy production.

  • Discussion on the implications of energy grid failures.

  • Importance of understanding energy sources and distribution.

Importance of Electricity

  • Essential for modern living; affects daily routines.

  • Example scenarios include lost access to online classes and charging devices.

  • Reliance on electricity leads to significant impacts when outages occur.

Case Study: Hurricane Maria (2017)

  • Hit Puerto Rico as a category four hurricane.

  • Initial reported deaths: 64; later updated to nearly 3,000 due to poor healthcare provisions.

  • Economic losses: approximately $94 billion.

  • Devastated Puerto Rico's electric grid.

Post-Hurricane Impact

  • Affected critical infrastructure: power and water access.

  • Harvard researchers' estimate of average outage duration: 84 days without power and 68 days without water.

  • Jose Sepulveda's family example highlights prolonged power outages affecting health and living conditions.

  • Migration: 14% of Puerto Rico's population left post-hurricane, many not returning.

Vulnerability of the Puerto Rican Grid

  • Unique reliance on a single centralized power grid.

  • Comparison to Florida: faster recovery due to multiple grid systems.

  • Electrical infrastructure susceptible to hurricane damage.

Understanding the Electricity Grid

  • Key components: power plants, transformers, transmission lines.

  • Discussion of AC (Alternating Current) vs. DC (Direct Current): efficiency in long-distance electricity transmission.

  • Historical context: Edison (DC) vs. Tesla (AC) rivalry.

Factors Affecting Energy Distribution

  • Voltage, amperage, and wattage are crucial terminologies associated with grid efficiency.

  • Production of electricity involves turbines activated by various energy sources (e.g., fossil fuels, renewables).

  • Challenge: balancing generation with consumer demand to prevent blackouts.

Current Energy Sources

  • Majority of electricity produced in the U.S. comes from thermal power plants using fossil fuels.

  • Renewable sources are less than 15% of energy consumption.

Energy Production Process

  • Thermal power: steam created by heating water, spinning turbines to generate electricity.

  • Highlighted the necessity for a resilient grid capable of meeting real-time energy demands.

Justice and Implications in Energy Production

  • Environmental issues associated with far-off energy production sites.

  • Justice implications concerning energy production, usage, and environmental impacts.

  • Puerto Rico’s pre-hurricane economic struggles tied to its energy infrastructure.

Energy Crisis Factors in Puerto Rico

  • High electricity costs stem from dependency on imported fuels (coal, oil, natural gas).

  • Economic constraints hinder investments for energy infrastructure improvements.

  • Discussed mismanagement and corruption within the Puerto Rican Power Authority (PREPA).

Nonrenewable Energy Sources

Fossil Fuels

  • Definition: combustible deposits formed from ancient organisms (coal, oil, natural gas).

  • Nonrenewable due to the lengthy formation process.

  • Environmental impact and health risks tied to fossil fuel production.

Coal and its Future

  • Declining use due to economic, environmental concerns: air pollution, job loss in mining.

  • Future reliance may be limited but varied by region.

Oil and Natural Gas

  • Major contributors to the global energy supply.

  • Concerns over geopolitical conflicts driven by uneven distribution.

  • Technological advances in extraction methods (i.e., fracking) raise environmental and health questions.

Renewable Energy Solutions

  • Introduction to the concept of heat pumps as an efficient sustainable energy solution.

  • How heat pumps work: heating and cooling by transferring heat.

  • Benefits: efficiency, potential to reduce emissions dramatically.

Personal and Societal Energy Changes

  • Individual changes: energy conservation, efficient appliances.

  • Societal strategies: carbon taxes, market shifts away from fossil fuels.

  • Call for political mobilization to challenge fossil fuel industry dominance.

Conclusion and Assignments

  • Reminder to complete readings and a quiz due next week.

  • Group project discussion during class time.


Oil production and use are projected to increase due to several reasons:

  1. Global Energy Demand: As developing countries industrialize and urbanize, their energy needs grow significantly.

  2. Economic Growth: Rising economies lead to greater consumption of energy, particularly in sectors dependent on oil, such as transportation and manufacturing.

  3. Technological Advances: Innovations in extraction methods, such as fracking, have made it easier and more cost-effective to produce oil.

  4. Geopolitical Factors: Fluctuations in oil supply and regional conflicts can lead to increased reliance on oil as countries seek to ensure their energy security.

  5. Continued Dependence: Many sectors still heavily depend on oil for energy, despite the push for renewable alternatives, leading to sustained demand.