Today’s Solutions: December 15, 2025

A giant plant using energy from the Sun to power a Moroccan city at night will open next month. The solar thermal plant at Ouarzazate will harness the Sun’s warmth to melt salt, which will hold its heat to generate energy in the evening. The first phase will generate for three hours after dark; the last stage aims to supply power 20 hours a day. It is part of Morocco’s pledge to get 42% of…

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