thankyou

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Answer by Roo Sutherland
nothing atoll

2 points please

Answer by Peter Reefman
There’s quite a bit.

Solar thermal (I’m assuming thermic is a typo) means using heat from the sun to (heat) water to be used either as easy hot water, or to be used to produce steam to then produce electricity.

“Electric solar energy” is superior known as photovoltaic solar energy, and converts solar irradiation (light, rather than heat) directly into electricity by basically capturing electrons in ‘doped’ silicone cells. By the way too much heat will make the photovoltaic system produce LESS electricity.

So one uses solar heat, and the other uses solar light.

Hope that helps

Answer by Simeon A
Mr. Reefman is quite right. The only thing I would add is that solar thermal is reasonably efficient and can make a worthwhile contribution to heating your home. Photovoltaic produces very tiny electricity and is not terribly useful for bulk electricity production.

S

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Answer by Hiba The Great
A normal bulb works as it consumes more electricity than the energy consuming one.
Normal one emits radiations which are harmful whereas energy saving one provide cool and calm atmosphere.
Normal bulb has less nichrome and more other elements.
Whereas saving one has more nichrome which saves electricity and efficient to use.

Answer by andy w
Google is your friend – but as you have not ………

Energy Saving Light Bulbs work in the same way as fluorescent lights, passing an electric current through gas in a tube to make the tube’s coating glow brightly.

In contrast, traditional incandescent bulbs work by heating a filament inside a bulb of inert gas, which generates proportionately more heat than they do light.

This difference in technology means that energy saving lightbulbs consume on average around 80% less energy than ordinary light bulbs and last between 8 – 12 times as long.

p.s. Do not know what Hiba the daft is on about but there is no “radiation” from normal bulbs except for the heat output.
I think he/she has been on the silly smoke.

Answer by Raj
in any light bulb some of the energy is wasted in the form of heat. in energy saving ones the amount of energy wasted is greatly reduced

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Answer by Peter C
1

Answer by dsm37127
easy, a three blade catches more wind therefore generates more electricity than a two blade

Answer by Frajola
Everything else being equal, a 2-blade prop is more efficient than a 3-blade. HOWEVER, seldom is everything else equal. On a fixed-pitch prop a 3-blade must be shorter than a 2-blade because of horsepower absorption. This makes the 3-blade quieter.

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Answer by befr3
energy saver bulb saves energy

Answer by krk
The energy that is saved !

Answer by dingodevil
You’re probably referring to the difference between an incandescent (traditional) light bulb and a fluorescent light tube. The former (which simply functions with an electric current passing though a thin metal filament in an inert gas) uses much more electricity (kWh) than the latter (which illuminates via the ionisation of a gas) because much of the energy input to the former is dissipated as heat. (Try touching an incandescent light bulb and a fluorescent light tube when they are lit, and feel the difference in the heat they emit.)

Essentially it all boils down to the fact that a fluorescent light tube consumes between 5 and 7 times less electricity (kWh, which is what you are charged for by the electricity company) than an incandescent light bulb for the same effective light output.

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Answer by roderick_young
The price per watt is a figure of merit, but is not how the panels are sold, any more than a gallon of gas is sold by how many miles you will be able to drive with it. You purchase the gas at a certain price, then how many miles you actually get depends on what automobile you drive, and other factors.

In the same way, a certain model of panel is sold for an agreed-upon price. Let’s state it’s a 200-watt panel, and sold for $ 400. If the panel was rated in accordance with established standards, that means the panel will deliver 200 watts under best sunlight and temperature (that only happens about an hour a day, if that). So you can compute that the price was 400/200 = $ 2 per watt.

If the strong sunlight shines on the panel for 1 hour, then the energy produced is 200 watt-hours. This is where many people get confused. A watt is different from a watt-hour. A watt is a unit of power, like how strong a man is. A watt-hour is a unit of energy, like the work accomplished by that man in 1 hour.

The watt-hours or kilowatt-hours delivered are what light the rooms, run the appliances, or are sold to the power company. Getting those is a matter of having a good geographic location and installation.

Answer by Nick
I know if its a 4500 watt system that the cost per watt would be $ 6. and the cost for the installation would be added to your mortgage (

Answer by Matthew B
A solar power system includes, Solar panels + grid inverter + new power meter + installation.
Solar panel cost is not linear as you go up in size of solar panels.
Solar panel efficiency can be worked out by size and power output.
Price per watt does not relate to overall performance.
Total solar panel watts, your location e.g. average kWh/day solar radiation, the aspect of the solar panel and their angle is important. Solar panels should be facing the equator (N or S) and pitched at your latitude angle.
Some of the solar losses include grid inverter efficiency, cable losses, temperature coefficient (power output efficiency falls slightly at higher temperatures) and cleanliness of the solar panel surface.

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it stated this on my study guide so i dont know why they would put the same thing but i mean like electrons and stuff…

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Answer by Jaime Rose
It is more brighter and save more energy. Longer stay on gets brighter

Answer by monicakryzelle_fortes
fluorecent ligh is an energy saving light..

Answer by U.K.Export
There is no difference between fluorescent lighting and energy saving light bulbs. The light bulbs are just fluorescent tubes which have been bent up to form a compact shape. The high voltage conversion circuit which is normally in the long casing of a strip light is contained within the base of the bulb itself.
The colour of these lights might vary but this is due to the various different compositions of the fluorescent coating on the inside of the glass tube and not any difference in their operation.

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Answer by William B
they install an automatic regulator

Answer by roderick_young
The harbor freight type system is intended to charge a battery, and is low power. It’s good for experimenting, but is not very efficient, and not very powerful. I have seen an experimenter state that their 15-watt panel only gave him 5 watts in bright sunlight. If it’s the amorphous silicon thin film type of panel, it wears out quickly, dropping to a fraction of its original output in a few years.

The $ 10,000 type whole home system usually has no batteries, and instead ties to the electric grid. There is generally a 10-year warranty on anything going wrong, and the panels themselves, the most costly part of the system, have a performance warranty of 25 years. The nameplate rating on such a system might be 4000 watts, and you can actually anticipate to get at least 3400 watts, usually.

Neither type of system is easily expandable. The huge system can be made expandable later, but that involves spending money up front, and the final system will likely cost more than if the more massive system was installed in the first place. An extra panel or two could be added to the small system, since it is generally underpowered anyway, but otherwise expansion means getting a absolutely new system and running it alongside the first.

For ultimate cost effectiveness, the huge system is maybe 1/8 the price of the smaller system, per watt.

Answer by pq glen
The 10k system is most likely as 1kw grid tied system

depending on sun hours in your area it will produce probably at least 3.5 kilowatt’s per day average

That will offset at least 12,000 kwh per year

at 10 cents a kwh that is $ 1,200

That is the difference

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Answer by Mike N
Minnions? what is that?>

Answer by Oldwhiteguy2earth
Why does anyone think any solar energy is bad (did they get a sunburn?). Anyway, I think the difference between active and passive solar energy is that passive solar energy is the absorption of the heat from sunlight to heat space in a house, pre-heat water going into water heaters or heating pool water. Active solar would be solar panels that generates electricity, etc. I am not positive, but that might be the difference.

Answer by briangorski_us
It’s pretty simple, but only through example.

If you are using “daylighting,” for example a skylight (although this more specifically refers to things like “sun-tubes,” that is passive. The light comes from the sun directly into the building, without the use of electricity.

If you are using PhotoVoltaic Panels (or PV panels) which convert it to DC energy, that then is either directly inverted, or goes to a battery bank, and is then inverted, and you are lighting a light bulb with it, that is Active.

Passive has a few more uses as well. For example, you can use it for heat, or hot-water heating, or supposedly an ancient form of “air-conditioning” known as a solar chimney, but the above to paragraphs give you the basic gist.

If you are not making electric with it, it’s passive, if you are, it’s active.

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Any help is welcomed. I will select the most informative answer for 10 points!

Thanks so MUCH!!!
Anyone one? LOL!!

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Answer by Help~me~Please
Blackle.com says “Blackle was created by Heap Media to remind us all of the need to take small steps in our each day lives to save energy. Blackle searches are powered by Google Custom Search.” and it says “1,233,411.569 Watt hours saved” That is all that I saw that you are speaking about, I am sure there are more but that is all I truly saw.

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Answer by funnypun
solar cells collect the energy and a solar panel is just a bunch of solar cells connected together to get more energy.

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