Solar energy conversion w/m^2 to mj/m^2

physics arcgis arcpy unit-conversion
SWAT picture SWAT · Nov 27, 2016 · Viewed 16.2k times · Source

i am new here, I am using MERRA monthly solar radiation data. I want to convert w/M^2 to MJ/m^2

I am bit confused, how to convert solar radiation monthly average data W/m^2 to MJ/m^2

so far i understood by reading different sources, Firstly i have to convert w/m^2 to kw/m^2 after kw/m^2 to mj/m^2 ....... Am i doing correctly 

Just i am taking one instance: 
For may month i have value 294 w/m^2 
So 294 * 0.001 = 0.294 kw/m^2
   0.294 * 24 (kw to kwh (m^/day)) =  7.056 kwh/m^2/day
   7.056 * 3.6 (kwh to mj) = 25.40 mj/day

i am confused i am doing right or wrong .

Answer

RocketNuts picture RocketNuts · Nov 27, 2016

Not sure why you would take the kWh step in between.

Your panels do 294 Watt per m², i.e. 294 Joule per sec per m². So that's 24*60*60 * 294 = 25401600 Joule per m² per day, or 25.4016 MJ per m² per day.

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