Inspec keywords: solar power; power distribution economics; power distribution planning; wind power; iterative methods; minimisation

Other keywords: annual investment costs minimization; flexible-regulation resources distribution; operational costs minimization; distribution networks; solar source; system-flexibility-balance constraints; wind source; bilevel programming model; double-layer iterative optimisation algorithm; lower-level planning model; lowest annual network loss; lowest annual abandonment; lowest annual operating cost; control variables; flexibility-supply indexes; system loss reduction; flexibility-demand indexes; flexible-regulation resources planning; state variables; renewable-energy sources; flexible-regulation-resource allocation

Subjects: Distribution networks; Energy resources; Power system planning and layout; Power system management, operation and economics; Optimisation techniques; Interpolation and function approximation (numerical analysis)