Electricity Generation Methods and Energy Sources Explained
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Electricity Generation Methods and Energy Sources
Thermal Power Station
A facility used to generate electricity from the energy released as heat, usually by burning fossil fuels like oil, natural gas, or coal. This heat drives a conventional thermodynamic cycle to move a generator and produce electricity. Note: This type of electricity generation releases carbon dioxide.
Hydropower
The use of the potential energy accumulated in water to generate electricity is a classic method for obtaining energy, often supplied by cataracts (waterfalls).
- About 20% of the world's electricity comes from this source.
- It is considered a renewable energy alternative, although it has been a major source for many years.
- It is especially suitable for wet areas or regions with flowing rivers.
- Reservoirs can be used to store water, mitigating flow oscillations during droughts.
- In Spain, hydropower production is present in most Autonomous Communities. The largest installed capacity is at Aldeadávila on the River Duero (Salamanca Province), followed by the José María de Oriol reservoir on the Tajo (Cáceres).
Renewable Energy
Energy derived from inexhaustible natural sources whose use does not jeopardize their future existence, as they are assured by the proper functioning of the planet. Examples include: solar, wind, hydro, biomass, and geothermal.
Power Sources
These are the mineral materials offered by nature capable of being transformed into energy (i.e., capable of performing work).
- Primary energy sources: Contain energy that cannot be used directly but is released when transformed (e.g., coal, oil, gas, uranium).
- Secondary energy sources: The energy itself, resulting from the transformation of primary energy, manifesting as light, electricity, or heat.
Raw Materials
Natural resources—animal, vegetable, or mineral—that are processed by industry into developed or semi-finished products.
Polo Development
A regional policy based on the development and promotion of specific areas such as Huelva, Cordoba, Granada, and Burgos. Between 1964 and 1972, eleven poles were created to correct regional imbalances caused by industrial polarization.
Industrial Restructuring
The reorganization of industry to rationalize production, adjust supply to demand, improve finances, adjust size, and modernize the sector. Industrial conversion is framed within the program of development and technological change in industry. It can also be defined as the process of readjusting a country's industrial structure to adapt to new market conditions and techniques. It can occur spontaneously or be forced by the government (Example: Spain 1984).