What's the typical solar cell efficiency ?

[munzir]

What's the typical solar cell efficiency ? Is it 12 %

what is 1.1 KW / m*2 ? Related to sun & solar panel

What's the conversion efficiency for DC to AC ? (Esp. in context to solar panels charging) Is it 90 %

What's the Battery storage / Recovery Efficiency ? Is it 90 %


thanks

 

[tpetar]

You just forget to say what type of solar cells of conventional cells.

NASA dont release his advanced and superior formula to shops for ordinary people. We have here on edaboard few space astronauts, maybe we can get some cells with under table way. ;-)

---------- Post added at 21:51 ---------- Previous post was at 21:42 ----------

https://www.nasa.gov/mission_pages/station/research/FTSCE_MiSSE_feature.html

https://spectrum.ieee.org/green-tech/solar/solar-cell-breaks-efficiency-record

**broken link removed**

https://www.smartplanet.com/blog/in...rough-worlds-most-efficient-solar-panel/12800

---------- Post added at 21:59 ---------- Previous post was at 21:51 ----------

What's the typical solar cell efficiency ? Is it 12 %

Efficiency can go 15-20%. Single p-n junction crystalline silicon devices are now approaching the theoretical limiting power efficiency of 33.7%, noted as the Shockley–Queisser limit in 1961. In the extreme, with an infinite number of layers, the corresponding limit is 86% using concentrated sunlight.

what is 1.1 KW / m*2 ? Related to sun & solar panel

Power that can be produced from cells at best conditions. You say 1,1KW/m2 that mens area of 1m2 can give in best way 1,1KW of power. If you find that panel please send me several. Of course I consider that are not stolen from some NASA facility.

What's the conversion efficiency for DC to AC ? (Esp. in context to solar panels charging) Is it 90 %

Depends from inverter design, can go up to 90% and over that.

What's the Battery storage / Recovery Efficiency ? Is it 90 %

Accept 80% efficiency, 100% give and you get or use 80% from this given 100%. Solar system should use deep cycle batteries, not starter. ;-)




Monocrystalline means ‘one crystal’. In this case each individual cell is grown from a single silicon crystal. This allows for the most uniform and consistent construction of a solar cell and makes or the best solar panels, but also the most expensive. I describe it as “best” mainly due to being the most efficient solar panels. Top of the line monocrystalline panels can have an efficiency of up to 20%, which means of all the sun’s rays that strike the panel, 20% of it is converted to electricity, the rest is converted to heat or reflected. A higher efficiency number means the panel can be smaller and still produce the same output as a less efficient panel, important if you have space restrictions like on an RV.

Polycrystalline means ‘many crystals’. While an oversimplification, this is sort of like the bologna or processed meat of the solar world, multiple different crystal bits are fused together to form one solar cell. You can tell just by looking at them because they have a flaky, woodchip board look to them of small blue chunks, where a monocrystalline panel will just be a solid, uniform colour. Polycrystalline panels are very widely used because they are cheaper than monocrystalline with efficiencies ranging from 10-15%. This equates to them taking up roughly 30-50% more space, but they are more cost effective.

Amorphous means ‘lacking form or order’, or in this case no defined crystal structure. Amorphous panels are created by spraying a very thin silicon layer to create the panels, so while it’s quick and uses less material, the silicon doesn’t form itself into the rigid, uniform crystal structure of the other cell types. This results in an even greater loss of efficiency down to about 6%, but in turn a lower price. Also, because of the thin silicon layer, it’s possible to create amorphous solar panels that are flexible, you can essentially buy it by the roll and slap it on anything. This is the newest of the solar cell technologies listed so it’s not as prevalent (also attributable to the low efficiency) and there’s less variety, but it should become more prominent in the coming years.

Vaporware this is a 4th type – one that pops up in the news once in a while proclaiming to be the next major breakthrough that will make plastic spray on solar cells that will cost around 5 cents a watt, or some similar claim. None have reached production yet as of this writing.

 

[munzir]

So, for normal ones , how many power would they provide for 1 m*2 ???

what do you mean by deep cycle batteries ?

the type of solar cells that are cheap but of producing greater power , if no one then tell that one which one is cheaper .....

 

[tpetar]

Deep cycle batteries are real one for solar system, starter is float batteries often called "die hard".

Consider 150W / m2 or 1KW/m2 per day. This depends from many parameters.

Better concentrate on insolation at your house, and place and way how to mount panels under what angle, direction, ... this is major thing.