Depende do modelo, do fabricante, do número de células fotoelétricas. Mas prá ser sincero, nunca vi o preço de nenhum tipo de painél solar. O meio mais fácil prá vc ficar sabendo é pesquisar no Google. Digite "fábrica de painéis solares";

In many places, it is not inherently illegal for a 14-year-old to date a 17-year-old. However, age of consent laws vary, and sexual activity between minors and adults may be illegal depending on the jurisdiction. It's important to be aware of and understand the laws in your specific location.