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:
Global Energy Demand: As developing countries industrialize and urbanize, their energy needs grow significantly.
Economic Growth: Rising economies lead to greater consumption of energy, particularly in sectors dependent on oil, such as transportation and manufacturing.
Technological Advances: Innovations in extraction methods, such as fracking, have made it easier and more cost-effective to produce oil.
Geopolitical Factors: Fluctuations in oil supply and regional conflicts can lead to increased reliance on oil as countries seek to ensure their energy security.
Continued Dependence: Many sectors still heavily depend on oil for energy, despite the push for renewable alternatives, leading to sustained demand.