Electronics > Power/Renewable Energy/EV's

Solar Compass Project - Kamloops, BC

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LabSpokane:
This one is so blatantly bad, it makes SolarRoadways look like a model of integrity.

They are claiming up to 13kWe of power from 13m^2 of solar panels embedded in a walkway. For those not in on the joke, sunlight strikes the earth at a maximum power of approx. 1kW/m^2, so these jokers are claiming 100% efficiency. The cells might be 15-20% efficient at best. And as we all know by now, a Solar Road might generate 25% of what well-sited solar can produce.

http://infotel.ca/newsitem/first-solar-road-in-canada-coming-to-kamloops-this-summer/it41171#.WPzKIHFe1NY.twitter

http://solarcompass.blogspot.ca/?m=1

http://kamino.tru.ca/experts/home/main/bio.html?id=mmehta

Ian.M:
Worse, they are claiming over-unity! Kamloops is at 50° 40' 34" N, 120° 20' 27" W, which is 27.24° north of the Tropic of Cancer so, on level ground you loose another 11% insolation due to the incidence angle even at full noon on Midsummer's day.

boffin:
I'm sure AvE will wander by and show that it just doesn't chooch.

LabSpokane:

--- Quote from: Ian.M on April 24, 2017, 05:40:23 pm ---Worse, they are claiming over-unity! Kamloops is at 50° 40' 34" N, 120° 20' 27" W, which is 27.24° north of the Tropic of Cancer so, on level ground you loose another 11% insolation due to the incidence angle even at full noon on Midsummer's day.

--- End quote ---

Good catch.  For those playing along at home, Ian is referring to Lambert's cosine law, which is detailed here:

http://www.geog.ucsb.edu/ideas/Insolation.html#insolationandlatitude

Cos(27.24) = 0.89 = 89% of theoretical maximum solar insolation at Kamloops' latitude. 

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