How much more expensive is solar energy than fossil fuels?
Fossil fuel power stations typically cost about $2.1 dollars per watt to build solar stations around $7 at present. The efficiency is increasing and costs are falling.
This of course does not represent the cost to the consumer.
In addition it does not take into account all the various other costs and the advantages and disadvantages of each. Fuel (fossil stations), poor sunlight (solar stations).
Maintenance costs are similar for single plants but solar stations do not have the capacity of fossil fuel stations.
What state of matter is the solar wind?
The solar wind is a stream of charged particles (mostly electrons and protons) that emanates from the Sun. Therefore, it is considered a plasma, which is the fourth state of matter distinct from solid, liquid, and gas.
How area of solar panel affect voltage?
It is not based on the area really...
basically for each photo voltaic cell they have a certain voltage, if you connect them in series such as
-------0-------0----------0---------0--- then it will increase the voltage 4fold but not the amplitude
if they are connected in parallel then amplitude will increase but not voltage. Usually panels have a mix of both to get a good voltage and amplitude
|--------0-----|
|--------0-----|
|-------0------|
|------0-------|
|------0-------|
What are the disadvantages for using solar energy to generate electricity?
Some disadvantages of using solar energy include the high initial installation cost, intermittent energy production depending on weather conditions, and the need for storage systems to store energy for use when the sun is not shining. Additionally, solar panels require a significant amount of space, which may not be feasible for all locations.
Does the output voltage of a solar cell depend upon the area of its surface exposed to the light?
yes, along with many other factors. Solar cells use the ultraviolet band of energy from a light source above the other bands. This is why incandescent lights do not provide as much power as a florescent lamp or why solar panels use quartz instead of glass covers.
What impact do solar panels have on society?
They allow power to be obtained in many otherwise hard to reach places. My home is solar and wind powered due to the remote location and frequency we end up "off grid".
They have allowed cell phone communications, satellites and many military applications to be workable.
How does light affect solar cells output?
Light is essential for solar cells to generate electricity because they convert light energy into electrical energy through the photovoltaic effect. The more intense the light, the greater the electricity output produced by solar cells. However, excessive heat from intense light can reduce the efficiency of solar cells, so it's important for solar panels to be designed to manage heat effectively.
What form of energy would a solar cooker use?
A solar cooker uses solar energy, which is the energy from sunlight. It captures and converts this energy into heat for cooking food without the need for additional fuel sources.
Why the rate of transfer of energy in the solar cell changes through out the day?
The rate of energy transfer in a solar cell changes throughout the day due to variations in sunlight intensity as the position of the sun changes in the sky. Factors like shadows, clouds, and the angle of sunlight can all affect the amount of energy reaching the solar cell at different times of the day.
Why do mirrors need to face the sun when used to generate solar electricity?
Mirrors need to face the sun to focus its rays onto a specific point, such as a solar panel or a receiver, to generate higher temperatures. This concentrated solar energy can then be converted into electricity more effectively, making the system more efficient.
How is solar energy stored and how it is released?
Solar energy is most commonly stored in batteries, depending on when it is going to be used. However, if it's not stored, it is used, or released, right away into the power grid to be used as normal electricty.
What does solar power and wind power have in common?
Solar power and wind power are both renewable sources of energy that do not produce greenhouse gas emissions. They are considered clean energy sources that can help reduce reliance on fossil fuels and combat climate change. Both technologies have been advancing rapidly in recent years and are becoming increasingly cost-effective.
What material is most commonly used to make photovaliac solar cell?
The most commonly used material for making photovoltaic solar cells is silicon. Silicon solar cells come in two main types: monocrystalline and polycrystalline, with monocrystalline typically being more efficient but also more expensive.
What is the energy transformation of solar collector?
A solar collector converts sunlight into heat energy. The solar cells inside the collector absorb the sunlight and convert it into thermal energy, which can then be used for various applications such as heating water or generating electricity.
How much energy is there in a can of sprite?
A typical 12-ounce can of Sprite contains about 140 calories. This energy comes from the sugar and other carbohydrates present in the drink, which provide the body with fuel to use as energy.
What are examples of electrical loads in the kitchen that convert electrical energy to light energy?
Examples of electrical loads in the kitchen that convert electrical energy to light energy include light fixtures, under cabinet lighting, and range hood lights. These devices typically use light bulbs, LEDs, or fluorescent tubes to produce light for illumination purposes in the kitchen.
Why photovoltaic street lighting system is not recommended for urban area?
Photovoltaic street lighting systems may not be recommended for urban areas due to limited space for solar panels to generate sufficient power, potential shading from tall buildings reducing sunlight exposure, and higher installation and maintenance costs compared to traditional grid-connected streetlights. Additionally, the aesthetic impact of solar panels and batteries in dense urban environments may not be desirable.
How solar cells are made from semiconductor?
Assemblies of solar cells are used to make solar modules which are used to capture energy fromsunlight. When multiple modules are assembled together (such as prior to installation on a pole-mounted tracker system), the resulting integrated group of modules all oriented in one plane is referred to in the solar industry as a solar panel. The electrical energy generated from solar modules, referred to as solar power, is an example of solar energy
Why are solar power at present not a good solution for large scale electricity production?
Current limitations of solar power for large-scale electricity production include high initial installation costs, intermittency of sunlight resulting in inconsistent power generation, and the need for large land areas for solar farms. Additionally, storing excess energy for use during periods of low sunlight can be challenging and expensive with current battery technology.
What are some things that require energy?
Some things that require energy include physical activities like walking or running, electronic devices such as smartphones or computers, machinery like cars or appliances, and even basic bodily functions like breathing and digestion.
How does solar energy formed step by step?
What is fill factor of photovoltaic cells?
The fill factor of a photovoltaic cell is a measure of its efficiency in converting sunlight into electricity. It is the ratio of the maximum power output of the cell to the product of its open-circuit voltage and short-circuit current. A higher fill factor indicates a more efficient solar cell.
How is solar insolation distributed on earth?
Isolation is the amount of solar energy, direct or diffuse, reaching a surface per unit of time. More precisely, insolation is the solar powerdensity incident on a surface of stated area and orientation, usually expressed as watts per square meter (W/m2) or BTU per square foot per hour. The word is a contraction of "incident solar radiation;" not to be confused with insulation.
Insolation values for a specific site are sometimes difficult to obtain. Weather stations that measure solar radiation components are located far apart and may not carry specific insolation data for a given site. Furthermore, the information most generally available is the average daily total - or global - radiation on a horizontal surface. To learn more about solar and other resource data, visit the external sites listed below.
When sunlight reaches the Earth, it is distributed unevenly in different regions. Not surprisingly, the areas near the equator receive more solar radiation than anywhere else on Earth. Sunlight varies with the seasons, as Earth's rotational axis shifts to lengthen and shorten days with the changing seasons. For example, the amount of solar energy falling per square meter on Yuma, Arizona, in June is typically about nine times greater than that falling on Caribou, Maine, in December. The quantity of sunlight reaching any region is also affected by the time of day, the climate (especially the cloud cover, which scatters the sun's rays), and the air pollution in that region. Likewise, these climatic factors all affect the amount of solar energy that is available to photovoltaic systems.
What causes solar energy to increase or decrease?
Solar energy can increase due to factors such as clear skies, optimal sunlight exposure, and advanced solar panel technology. Conversely, solar energy can decrease due to factors like cloud cover, shading, and the position of the sun in the sky.
What is the process of capturing solar energy called?
The process of capturing solar energy is called solar energy harvesting or solar power generation. This involves converting sunlight into electricity or thermal energy using solar panels or other solar technologies.