Dimana α1 positif terhadap Barat (s

Dimana α1 positif terhadap Barat (siang), dan negatif ke arah Timur (pagi), dan oleh karena itu, tanda α1 harus cocok dengan sudut jam. Dengan pengetahuan tentang posisi matahari sehubungan dengan lokasi tertentu di bumi, kolektor surya perlu untuk ditentukan. Sudut kolektor (θ) antara matahari dan garis normal permukaan kolektor adalah

Results (English) 1:

Where α1 positively to the West (noon), and negative to the East (morning), and therefore, the sign must match the angle α1 hours. With knowledge of the position of the sun in relation to a specific location on the earth, the solar collector needs to be determined. Collector angle (θ) between the sun and the normal line of the collector surface is

Results (English) 2:

Where α1 is positive against the West (noon), and negative eastwards (morning), and therefore, the α1 sign must match the clock angle. With the knowledge of the position of the sun with respect to certain locations on Earth, solar collectors need to be determined. The collector angle (θ) between the sun and the normal line of the collector surface is