Revision as of 19:39, 19 December 2018 by Marcin(talk | contribs)(Created page with "*Cement takes 5 MJ/kg - [https://en.wikipedia.org/wiki/Embodied_energy] *A 200kW panel produces 4300 MJ per day. [https://www.google.com/search?q=1200+kwhr+to+MJ&oq=1200+kwhr+...")