Three simple formulas to help you calculate the PV array spacing for any terrain!

I. Introduction

For technicians working on PV system design, the calculation of the matrix spacing should be fundamental.

For the calculation of the flat terrain, the calculation of the distance is relatively simple. I used excel to compile a small program called “calculating before and after the array”, which can be calculated very quickly. However, more and more technicians now encounter complex terrain such as mountains. In this case, the calculation of the distance will be very troublesome. I have improved the "before and after calculation of the array" program, but due to the existence of circular references, manual adjustments must be made and it is not particularly convenient to use them.

In recent days, he has carefully studied the “Lao Jiang Lectures” series of lectures on the arrangement of mountain-type photovoltaic power stations published in “Sunshine Craftsmen Photovoltaic Network”, benefiting greatly! Thanks Jiang Gong for sharing such good things with everyone! Salute to you~

Jiang Gong's things are good, but the formula is a bit complicated. I simplified the formula of Jiang Gong and obtained a simplified formula for calculating the distance between photovoltaics in mountainous regions.

Second, assumptions

1. The size of the photovoltaic array: length L, width W, inclination angle β;

2, astronomical parameters: solar altitude α, solar azimuth γ;

Are these three formulas looking very refreshing? It's much better to use it.

Fourth, some instructions

1. What is the solar altitude angle α and the azimuth angle γ?

This does not explain. Even those who do not count this, show that they are not people who engage in this industry.

4) Regardless of how the mountain changes, formulas 1, 2 and 3 can be used to easily find the array spacing when not blocked.

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