optimal combination in a sentence

Examples

1. The System Operator achieves this by determining the optimal combination of generating stations and reserve providers for each market trading period, instructing generators when and how much electricity to generate, and managing any contingent events that cause the balance between supply and demand to be disrupted.
2. I was intrigued by the discussion here, so I looked at the source cited at the top, and wonder : What is the optimal combination of neutron flux and electromagnetic radiation to transmute radioactive waste from nuclear reactors into the safest set of isotopes ? talk ) 06 : 07, 14 January 2010 ( UTC)