Concentrated Solar Power with multijunction cells

Dear Saeed,

If the datasheet only has the efficiency at one point on the curve, you may need to estimate the efficiency at different irradiances, or you could use a flat curve by using the same efficiency value for all of the irradiance levels.

The packing factor input on the Array page is described in the Help topic for that page. It is a way to account for the cost of land as a function of module area. It is different from the GCR for the PV model, which is used for self-shading calculations. The HCPV model assumes that the trackers are spaced so that there is no self shading.

You can use the Contact page to email me.

Best regards,
Paul.