Are Solar Panels Going To 300 Watts Soon?

Are Solar Panels Going To 300 Watts Soon?


Right now solar panels are around the 200
watt range. Are they ever Going To 300 Watts is a question I asked John Shaw project engineer
of Bella Energy. Absolutely, any manufacturer can do that right
now. You shouldn’t really look at how many watts a panel has – rather how many watts
per square foot can be attained. Behind you is a Sanyo 200, if you increase the foot print
of that panel by 50% it is a 300 watt panel. The reality is what you need to be looking
at to measure the level of progress of the technology is how many watts per square foot. Instead of thinking will there ever be a 300
watt panel – surely there will be even next year. To get at the point of your question
is do you ever think we will be ever to achieve a 300 watt panel in 15 square feet? And yes, I do. Right now standard efficiency
panels are in the ballpark of about 12 watts per square foot, it ranges from 10 to 13.
Standard efficiency panels Evergreens, Sharps, Kyocera, Shot (?), Suntech etc. Keep in mind this is the residential affordable
panels, NASA works with panels that are about 30 watts per square foot but you are talking
a million bucks a panel. Then there are high efficiency panels of the
ones we know of are SunPower and Sanyo. And Sunpower and Sanyo are approximately 15 watts
per square foot. Both are very good products. Sanyo I believe has a little bit of an edge
because they has an amorphous or thin film rap around the silicon cell which allows them
to maintain high production in high heat. One more reason and I will tie this in. The Sanyo’s are shipped with a minus 0 and
a plus 5 percent so when you buy a 200 watt Sanyo panel you will get hypothetically in
standard test conditions 75 degrees at sea level you will get 200 watts or up to 210
watts. All other panels including specifically Sunpower
are + or – 5%, so you could buy a 210 watt Sunpower cell and it could actually perform
at 199 watts where you could buy a 200 watt Sanyo cell it could perform at 210 watts,
but no less than 200 watts. So that and the fact the Sanyo’s will out
perform Sunpower apples to apples same azimuth and pitch in high heat because of this amorphous
or thin film rap 10% in high heat peak days peak hours – we feel Sanyo is a better panel. But I have to say that Sanyo’s are more expensive
than Sunpower. We can’t touch the Sunpower price, we can touch it with standard efficiency
panels – blow it out of the water with standard efficiency panels. But if you are talking
about high efficiency panels and high efficiency I think Sanyo is a better panel but the Sunpower
is definately a better price.

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