Questions & Answers
What is the difference between and what is photovoltiac versus solar energy
Solar energy is the output from our sun though not strictly correct it is sufficient for most purposes to say it is the sun's energy that reaches Earth. It includes a wide spectrum of different frequencies/temperatures of light and energy and various types of particle and electromagnetic radiation, a significant proportion of much of the content is deflected by the Earth's magnetic field and various layers of the atmosphere.
The solar energy reaching the Earth's surface is reckoned to average the warming equivalent of 3kW/hr per square metre.
Photovoltaic (PV) is a process that converts the Sun's heat/light into electricity and should not be confused with the Solar/thermal systems designed to use the sun's heat/light radiation to heat water. Mostly this is used for domestic purposes but some large installations exist where large mirrors concentrate light onto a solar panel with enough heat to produce sufficient steam to drive a turbine/generator to produce electricity.
Photosynthesis, incidentally, is the method plants use to convert atmospheric CO2 into growth using energy from the sun.
405 views | 0 helpful votes
What are the probles when using solar energy sourse
Not using enough solar panels or total output to match the needs for what you would be using it for. Small solar panels (35-100 watt) are great just to keep 1-4 batteries charged when not in use but if you plan to be running an inverter and powering appliances, living quarters in an RV or larger scale living, that if when you would need A LOT of solar panel and a basement full of batteries to use at all times. A lot of money would be spent on the panels and batteries but if you do not have the right equipment to control the electricity and monitor everything, you may be better if donating the money to a good charity where it will be much more useful and greatly appreciated
801 views | 0 helpful votes
How do you make a solar oven?
I just found this on the Home Science Tools site. The instructions here are for kids, but they do say they will need an adult's help, so I hope it's what you were looking for:
1,005 views | 0 helpful votes
Can I buy wind turbine generators on Amazon?
You can buy wind turbine generators from Amazon here:
1,163 views | 0 helpful votes
When was wind power first used?
technically, wind was first used to power sailboats thousands of years ago. Heron of Alexandria used wind to power his windwheel in the 1st century, which was the earliest record of using wind to power a machine
646 views | 0 helpful votes
Not finding what you are looking for?