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diy solar

diy solar

What does the "W" number mean for a solar panel? For example 400W ?

Power (in kW) = kWh/h
You joke, but I honestly think this would make more intuitive sense to people that aren't used to dealing with technical units.
The fact that the 'base' unit in electrical systems, the Watt, is a rate (equal to 1 Joule per second) seems really hard for people to grasp.
(y)... it does seen to be confusing for non-technical people. I suspect the reason it is difficult for some people to grasp is that in other situations the 'rate' is the base unit divided by time. For example, speed, where speed is typically measured as distance divided by time (e.g. miles-per-hour, or metres-per-second). Or rainfall, measured in mm/h or inches per day etc.
 

diy solar

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