Strategic outsourcing of sustainable energy platforms in the fields of (1) present and future state assessment of energy usage from the point of view of efficiency, cost, resilience and emissions, (2) stakeholder analysis and engagement from the point of view of grid operators, local regulatory agencies, tax credit issuers, and others who may be affected by sustainable energy infrastructure development, (3) design and feasibility analysis of a "sustainable energy platform" comprised of some mix of renewable energy generation assets, interconnections with the grid, energy storage systems, operations and maintenance contracts, insurance contracts, and a business structure holding the assets and charging fees for the utility they provide, (4) financial modeling and Energy-as-a-Service (EaaS) contracting tailored to customer preferences for factors including duration, inflation indexing and tax efficiency, (5) contracting and business-establishment to own, insure, and maintain capital assets and to monetize these assets through EaaS contracts, and (6) End-to-end process management including design, build, finance, operate and maintain. (2) Strategic outsourcing of sustainable energy platforms to allow for greater control of forward-looking electricity costs, reduced energy-related emissions, and increased resilience of user's energy platform