What is Solar: Definition and 1000 Discussions

Solar power is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV), indirectly using concentrated solar power, or a combination. Concentrated solar power systems use lenses or mirrors and solar tracking systems to focus a large area of sunlight into a small beam. Photovoltaic cells convert light into an electric current using the photovoltaic effect.Photovoltaics were initially solely used as a source of electricity for small and medium-sized applications, from the calculator powered by a single solar cell to remote homes powered by an off-grid rooftop PV system. Commercial concentrated solar power plants were first developed in the 1980s. As the cost of solar electricity has fallen, the number of grid-connected solar PV systems has grown into the millions and gigawatt-scale photovoltaic power stations are being built. Solar PV is rapidly becoming an inexpensive, low-carbon technology to harness renewable energy from the Sun. The current largest photovoltaic power station in the world is the Pavagada Solar Park, Karnataka, India with a generation capacity of 2050 MW.The International Energy Agency projected in 2014 that under its "high renewables" scenario, by 2050, solar photovoltaics and concentrated solar power would contribute about 16 and 11 percent, respectively, of worldwide electricity consumption, and solar would be the world's largest source of electricity. Most solar installations would be in China and India. In 2019, solar power generated 2.7% of the world's electricity, growing over 24% from the previous year. As of October 2020, the unsubsidised levelised cost of electricity for utility-scale solar power is around $36/MWh.

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  1. Pythagorean

    Solar powered vertebrate (through symbiosis with algae)

    http://www.newscientist.com/article/dn23090-zoologger-the-first-solarpowered-vertebrate.html
  2. O

    Escape velocity of solar system

    Hey guys so this question I'm kind of stuck on, Our solar system, starting from Saturn's orbit. So I know the formula is v = sqrt(2GM/r) But not sure what to put for the mass and radius, am i including saturn and planets like uranus and neptune only or all the satellites and stuff to like...
  3. A

    [MSc thesis ideas] Solar PV with use of quantum physics

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  4. N

    Solar Constant for Kuiper belt

    what is the value for our solar constant?
  5. S

    How big bodies can exist in outer Solar System?

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  6. P

    Escape velocity from solar system

    Hi. I've been wondering, how could I calculate the escape velocity for a body of mass m which is a certain distance r from the center of the Earth to escape the entire solar system, assuming the distance from the center of mass (aprox. from the sun because it's about 99% of the mass of the solar...
  7. tfr000

    Trouble with a Solar System simulation

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  8. J

    LED based solar simulator testing method

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  9. Z

    Calculate Perihelion Distance of Mars Using Solar System Parameters

    Homework Statement Assuming that the sun lies at the principal focus of the solar system, and given that the semi-major axis and eccentricity of Mars is 1.5237 AU and 0.0934 respectively, calculate: The distance (in AU) when Mars is closest to the Sun (known as perihelion). The angle θ=0°...
  10. G

    Solar Energy in Space: Locomotion & Approaching Sun

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  11. O

    Calculating temperature increase in a building as a result of solar radiation

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  12. K

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  13. DiracPool

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  14. TheFerruccio

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  15. E

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  16. P

    Solar system is bigger than previously thought

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  17. U

    Solar System's orbit around galaxy, a concise 3D description?

    Hello, this is my first topic/question, thanks for reading thus far... It is very easy to find explanations about the general path that the solar system takes when it orbits the center of our galaxy, when viewed in 2D from above, a circle around the center some distance away from that center...
  18. O

    Nuclear Waste Disposal into Sun or outside Solar System?

    Hello fellow aerospace engineers and physicists, I am currently working on a project and trying to figure this out. I was wondering if you guys could help me out. Here is the problem statement: A nuclear waste disposal spacecraft is to be sent from Earth in order to carry radioactive waste...
  19. J

    Can Astronaut survive within solar wind?

    Solar wind contains ion charges and electromagnetic field, will Solar wind affect action potential within Astronaut's nerve system? Does anyone have any suggestions? Thanks in advance for any suggestions
  20. L

    Solar wobble - what are the effects of Jupiter and Saturn?

    Hi I came across this excellent forum :) I am trying to figure out the solar wobble. When only looking at the Sun+Jupiter+Saturn, my intuitive interpretation is that the Sun will go faster/wobble more at Jupiter-Saturn-conjunction, and slower at oppositions. Is this correct? If so, there...
  21. J

    What is different in Solar Radio vs Radio Flux 10.7 cm?

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  22. J

    Any methods to connect 20W solar panel?

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  23. P

    Exploring the Solar System: Reasons Why

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  24. Astronuc

    Orphan planets, i.e., planets not in a solar system

    Orphan or 'rogue' planets may be common, rather than an exception, at least in the galaxy. http://news.yahoo.com/orphan-alien-planet-found-nearby-without-parent-star-122308193.html But how common?
  25. P

    Is There a 100 Solar Mass Black Hole in Orion Nebula?

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  26. V

    Solar tracker calculation of torques and forces

    hi i am designing a solar tracker for my final year project. its a dual axis solar tracker with two stepper motors one rotating a shaft and the other tilting a bar. i need help on calculating forces torques and finding the FOS. can anyone help me?
  27. B

    Help understanding solar imaging wavelength and coronal temp

    The TRACE website has a solar image that is described as, quoting from the text associated with the image, "This is a false-color, 3-layer composite from the TRACE observatory showing the solar corona: the blue, green, and red channels show the 171A, 195A, and 284A, respectively. These TRACE...
  28. J

    What is the Nature of Solar Radio Flux?

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  29. J

    How can a recent graduate get into the Solar Industry?

    I am a mechanical engineering B.S. graduate 3 years corporate engineering experience. I've developed a passion for solar energy over the past year. However, jobs are short for early-life engineers like me. How do I get started as an engineer in a company like FirstSolar and NanoSolar? They...
  30. A

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  31. S

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  32. lpetrich

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    The Extrasolar Planets Encyclopaedia Exoplanet Orbit Database | Exoplanet Data Explorer Numerous planets outside the Solar System have been discovered, and for some curious reason, a large number of them are around Jupiter's mass, but much closer in than one would expect. The usual theory...
  33. Eirhead

    Solar Winds, Space-Aged Propulsion & Plasma Beams?

    Solar Winds, Space-Aged Propulsion & Plasma Beams? Hi there I'm educated the field of electrical systems & radio frequency, and I love reading about things like ion drives, hall effect thrusters and VASIMR. One thing I find quite fascinating is how the solar winds accelerate away from the sun...
  34. K

    Universe was the size of our solar system after 1 sec

    I've heard many times that the universe was the size of our solar system after 1 sec. But how is this possible if nothing can travel faster than the speed of light? Are there any theories on this?
  35. O

    Formation of the Solar System (Astrophysics Homework Help)

    Homework Statement Formation of the Solar System The distance of Venus is about 0.7 AU, and the orbital radius of Jupiter is about 5.2 AUs. How many times hotter is the region where Venus formed compared to the region where Jupiter formed? Enter numbers and decimal point only. Round off...
  36. O

    I on how to build an inverter with solar panel

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  37. A

    Energy, Non-coplanar solar system orbits for space ships

    Hi all, As many of you have seen, I am thinking about spaceship trajectories. This next question falls under the same subject, but it is an entirely different question from the previous questions I have asked. Spaceships of the near future will fly in the plane of the solar system. Suppose if...
  38. A

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  39. dbmorpher

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  40. R

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  41. J

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  42. W

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    Homework Statement The unit area intensity of radiation from the Sun at the photosphere is 6.33*107 W/m2. a) Check this value using the calculus of the Stefan-Boltzman Law, assuming the Sun is a blackbody emitter (\epsilon = 1) with a surface temperature of 5777K. Homework Equations...
  43. T

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    Homework Statement Given: Consider the following: city: Córdoba, Argentina Longitude = 64 deg 10 min W Latitude = 31 deg 28 min S Time zone = GMT -3 Date = 01 August On this date, the equation of time = -6 minutes. Assume no daylight saving time (a) Determine the standard time at solar noon...
  44. P

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  45. J

    Electron/Hole Effective Mass vs Solar Cell efficiency

    Hi. I'm doing research relating to solar cells and came about the topic related to effective masses. The wiki article stated how effective mass (solid state materials) influences the efficiency of solar cells, but doing more research I couldn't find any solid examples of an effective mass vs...
  46. P

    Generate 12VDC using solar panel

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  47. A

    Liquid Solar Generator: Can It Work?

    If I had a black liquid that was thin, and I had a transparent liquid that was just lighter than the black liquid but didn't mix with the black liquid, and I put them in a dish out in the sun would the black liquid absorb the photons causing it to heat up and rise during the day, and cool down...
  48. D

    Investigating the Magnus Effect on Solar Wind

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  49. T

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    So today my brother and I were playing with a mini solar cell that I just got, watching the voltage change with a multimeter, and seeing how even an LED would produce about .5 V in the cell, when he posed a question: If you were to take a solar cell (i.e. photodiode) capable of producing...
  50. C

    Opinions please - ME Senior Project - Solar or Turbine

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