min	Gaverage
s.t.	Load balance constraints given in SI Appendix, Eqs. S12–S18, S34–S42, and S63–S65
	Economic evaluation constraints given in SI Appendix, Eqs. S19–S25, S43–S58, and S69–S75
	Life cycle environmental impact analysis constraints given in SI Appendix, Eqs. S26–S33, S59–S62, and S66–S68