It appears as though you did not connect the "Incidence Angle" from your Weather Reader/Processor to the collector. That is likely the cause.
Best regards,
Matt Duffy
----- Original Message ----- From: "mesude bayrakci" <mesudebayrakci@gmail.com> Sent: Tue, January 18, 2011 13:45 Subject: [TRNSYS-users] BIPV power calculation
Hello,
I wanted to calculate power production by changing the collector slope with Type 567 (BIPV). I used 0,30,36,42 degree as a collector slope. However, the power results are very similar.
I know, when we use the slope, the power should be higher.