is it correct that total field efficiency includes the following losses:
- cosine
- reflectivity
- shading & blocking
- atmospheric attenuation
- availability
- spillage ?
Please confirm / correct. Thank you very much in advance.
I can confirm your list. The efficiency of each heliostat is the product:
(cosine loss) * ( reflectivity and soiling ) * (shadowing loss) * ( blocking loss ) * (attenuation) * (availability) * (intercept factor - also called spillage).
The power tower model does not report the cosine loss as a separate loss. The results do show the DNI from the weather file and the field incident thermal power, which should help with your analysis.