Energy Resources
Renewable
Nonrenewable
DESCRPTION
DEFINITION
DESCRIPTION
wind energy
DEFINITION
A non-renewable resource is a natural resource that cannot be easily replaced by natural means at a fast enough rate to keep up with consumption.
Include coal, natural gas, oil, and nuclear energy. Once these resources are used up, they cannot be replaced
Wind energy is a renewable energy source that harnesses the power of the wind to generate electricity.
advantages
disadvantages
renewable resource
intermittent power generation.
gas emissions economic benefits,
energy independance
minimal noise pollution.
low greenhouse gas emissions
land requirements
initial and maintenance costs,
potential risks to birds and bats.
energy obtained from virtually inexhaustible natural sources, either because of the immense amount of energy they contain, or because they are capable of
visual and environmental impacts
how it is used for electricity generation.
To generate electricity, wind turbines capture the wind's kinetic energy and convert it into mechanical energy by rotating their blades. This mechanical energy is then transformed into electricity using a generator.
types
Is the energy obtained from virtually inexhaustible natural sources, either because of the immense amount of energy they contain, or because they are capable of being regenerated by natural means to moderate the extraction of fluids, gasses, and mining. fossil
wave energy
solar
disadvantages
how it is used to generate electricity
advantages
cost-effective in the long run
energy independent
environmentally friendly
Versatility and scalability
High initial costs
Land and space requirements
Intermittent and variable
waste production.
TYPES
Solar thermal power plants: Concentrated sunlight heats a fluid, producing steam that drives turbines connected to generators for electricity production.
Photovoltaic (PV) technology: Solar panels convert sunlight directly into electricity by exciting electrons in semiconductor materials. The generated direct current (DC) electricity is then converted into alternating current (AC) using inverters.
FOSSIL FUELS :
NUCLEAR
Disadvanteges:
- Enviromental Impact.
- Depletion of resources.
- Health Risk.
How it is used to generate electricity:
- Combustion: Fossil fuels are burned in a combustion chamber, releasing stored energy in the form of heat.
- Steam Generation: The heat produced from combustion raises the temperature of water or a working fluid, creating high-pressure steam.
- Electricity Generation: The steam drives a turbine, which is connected to a generator. The turbine's rotation generates electricity
Advantages:
- Energy abundance
advantages:
No pruduction of CO2
Very efective
Employ lots of people
How it is used to produce electricity
Heat generation: The heat generated by nuclear fission is used to produce steam. The heat is transferred from the reactor core to a coolant, typically water or a liquid metal, which absorbs the heat energy.
Steam generation: The high-pressure steam produced by the heat is directed towards a steam turbine.
Electricity generation: The steam drives the blades of a turbine, causing it to spin. The spinning turbine is connected to a generator, which converts the mechanical energy into electrical energy using electromagnetic induction.
Disadvantages:
Risk of radiation leakage
Waste products cannot be recycled
Limited supply
disadvantages
how it is used to generate electricity
advantages
Environmentally friendly
Predictability
Renewable and abundant:
Energy independence
Potential for co-location
Harsh marine environment
Visual and environmental impact
Technology and infrastructure challenges
Limited geographic applicability
Interference with other activities
Wave energy devices are deployed in the ocean to capture the kinetic energy of waves. As waves pass, they cause the devices to move or generate changes in water pressure, which is then converted into electricity using various mechanisms such as turbines, hydraulic systems, or linear generators. The electricity generated can be used directly.
BIOFUELS
disadvantages: they encourage single crop harvesting, resource and food mismanagement, and are climate dependent.
How is used to produce electricity:
- Heat generation: The heat generated from the combustion or gasification process is used to produce steam by heating water or another working fluid.
- Steam generation: The high-pressure steam drives a turbine, similar to the process in fossil fuel-based power generation.
- Electricity generation: The spinning turbine is connected to a generator, where the mechanical energy is converted into electrical energy through electromagnetic induction.
advantages: they are renewable sources, they slow climate change, are easily produced, cause less pollution, are accessible, and are energy-efficient