Requirements

The development of mega solar power plants requires the following principal conditions.

Abundant Solar Radiation

The greater the amount of insolation, the more electricity obtained from the solar cell module.
Meanwhile, there is a tendency for output to fall as the temperature of the solar cell module increases. The project site is therefore selected taking into account not only the amount of insolation but also meteorological conditions, such as temperature.

Large and Flat Area of Land

The construction of mega solar power plants requires a large land area. While it will also depend on the circumstances of the installation of the solar cell module, the construction of a 1MW mega solar power plant will require land that has an area of around 20,000m2 to 30,000m2 (equivalent to 75 to 115 tennis courts). The land must also be free of mountain forests and buildings that may intercept the sunlight. Another important requirement in terms of construction is that the land is as flat as possible and has roads of around 5m in width.

Transmission Lines Tailored to Capacity Located Nearby

Transmission of electricity from a mega solar power plant requires that transmission lines with interconnecting capabilities be located nearby. A solar power plant with a capacity of less than 2MW requires high voltage transmission lines (over 600V, under 7kV), while a solar power plant with a capacity of over 2MW requires special high voltage transmission lines (over 7kV).