Solar Energy Distribution: How It Reaches the Grid
The solar energy distribution process encompasses several critical steps that convert energy produced by solar power
Weight training: Do''s and don''ts of proper technique
You might learn weight training techniques by watching friends or others in the gym, but sometimes what you see isn''t safe. Weight training technique that isn''t proper can lead to muscle
Exercise: How much do I need every day?
You can do strength training by using weight machines or weights, your own body weight, heavy bags or resistance bands. You also can use resistance paddles in the water or do activities
Arthritis pain: Do''s and don''ts
Arthritis is a leading cause of pain and limited mobility worldwide. There''s plenty of advice on managing arthritis and similar conditions with exercise, medicines and stress management. But
Cardiopulmonary resuscitation (CPR): First aid
Cardiopulmonary resuscitation (CPR) is an emergency treatment that''s done when someone''s breathing or heartbeat has stopped. For example, when someone has sudden cardiac
Photovoltaic systems
The output of a PV module depends on sunlight intensity and cell temperature; therefore components that condition the DC (direct current) output and deliver it to batteries, grid, and/or load are required
How Solar Electricity Works
The current (and power) output of a PV cell depends on its efficiency and size (surface area), and is proportional to the intensity of sunlight striking the surface of the cell.
How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
Triglycerides: Why do they matter?
Why do high triglycerides matter? High triglycerides may contribute to hardening of the arteries or thickening of the artery walls, called arteriosclerosis. This condition increases the risk of
Automated external defibrillators: Do you need an AED?
An automated external defibrillator (AED) is a portable device that can be used to treat a person whose heart has suddenly stopped working. This condition is called sudden cardiac arrest.
How Is Solar Energy Converted Into Electricity?
Solar energy is converted into electricity through the photovoltaic effect, a process where sunlight, composed of photons, agitates electrons in a
Theory of solar cells
OverviewWorking explanationPhotogeneration of charge carriersThe p–n junctionCharge carrier separationConnection to an external loadEquivalent circuit of a solar cell
1. Photons in sunlight hit the solar panel and are absorbed by semi-conducting materials.2. Electrons (negatively charged) are knocked loose from their atoms as they are excited. Due to their special structure and the materials in solar cells, the electrons are only allowed to move in a single direction. The electronic structure of the materials is very important for the process to work, and often silicon incorporating small amounts of boron or phosphorus is used in different layers.
PV Cells 101: A Primer on the Solar Photovoltaic Cell
To boost energy yield, researchers and manufacturers are looking at bifacial solar cells, which are double-sided to capture light on both sides of a
How Photovoltaic Cells Generate Electricity
The generation of electric current happens inside the depletion zone of the PN junction. The depletion region as explained previously with the diode is the area
Acute sinusitis: Do over-the-counter treatments help?
Medicine you can get without a prescription may give some relief from acute sinusitis symptoms.
Ileostomy
Can I swim? How do I shower? Do I need to buy different clothes? How will it affect my intimate life? Once you adjust, you''ll likely find that it''s possible to do many of the same activities you
Osteopathic medicine: What kind of doctor is a D.O.?
You know what M.D. means, but what does D.O. mean? What''s different and what''s alike between these two kinds of health care providers?
How do solar panels work? Solar power explained
At a high level, solar panels are made up of solar cells, which
The Physics of Solar Power
The most common semiconductor material used in solar panels is Silicon. To explain how a solar panel creates electricity from sunlight, we first have to understand how Semiconductors conduct electricity.