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Ukraine is making its infrastructure harder for Russia to destroy by building clean energy sources
(www.milwaukeeindependent.com)
This is a most excellent place for technology news and articles.
A Geran-2 is a mass produced 20-30 k$ item and can carry a 50 kg payload up to 2000 km which will destroy PV modules in a 200-300 m diameter with a cluster munitions payload. Such attacks are very cost effective and can be repeated, so rebuilding doesn't help you.