After all, that's "green."
The color green (Arabic: أخضر, romanized: 'akhḍar) has a number of traditional associations in Islam. In the Quran, it is associated with paradise. Green was adopted by the Shi'ites, and remains particularly popular in Shi'ite iconography, but it is also widely used in by Sunni states, notably in the flag of Saudi Arabia and the flag of Pakistan.
Pretty sure solar panels don’t stand up well under bombing