Forget Solar Panels. Here Come Rain Panels - The Debrief
Forget Solar Panels. Here Come Rain Panels - The Debrief
A technological breakthrough in harvesting the energy from falling raindrops may lead to the world's first rooftop rain panels.
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Useful to note the maximum theoretical energy that rain contains, per the article: 0.2kW/M2. Solar is ~1.3kW/m2.
per the article: 0.2kW/M2
No fucking way! Rain drops impact at 9m/s. To get 200W, even at 100% efficiency, you'd need
200 (kg m2/s3) * 2 / (9 (m/s))**2 =4.94 kg/s of rainwater! That's3600 (s/hour) * 4.94 (kg/s) / 1000 (kg/m) =17.8 meters of rainfall per hour! (700 inches/hour in freedom units). The most rain ever recorded in 1 hour ever has been 0.305m.If they actually built some kind of microturbine or piezoelectric array system (there is no way to tell which from the fucking article), good for them, but it's useless for rooftop power generation unless you gonna be blasting it with a firehose personally. But given the nonsense language and the quite specific "green house powered by rainfall" graphics, this is a scam.