Eventually, we present the WEA scheme that self-sufficiently supplies renewable resources in combination and can be evaluated based on total outputs. The advantages of the WEA scheme should be assessed from several points of view, including the environmental impact, economic, security, and resilience. In practice, large-scale power storage is required for steady-state use of PV, and batteries are generally expensive. In other words, it is not yet realistic to entirely rely on electricity from renewable energy for 100% so far. In addition, infrastructure manufacturing is accompanied by CO2 emissions.