The IN-PLAN approach is presented as a structured methodology that enables the integration of energy and climate objectives within existing spatial planning systems, overcoming the common disconnect between strategies and their regulatory application. Based on a five-phase process, it supports administrations from initial analysis through to evaluation, incorporating tools such as a checklist that facilitates the identification of synergies, the detection of inconsistencies, and alignment across sectors such as energy, mobility, and climate adaptation.

Its main utility lies in converting strategic objectives into binding spatial provisions, integrating criteria such as energy efficiency, renewable energy, or resilience directly into urban plans and land-use decisions. By operating within existing legal frameworks, the tool is adaptable to different administrative contexts and strengthens coherence between policy and implementation. In this sense, it provides practical support for local and regional authorities seeking to translate climate ambition into concrete territorial interventions, improving institutional coordination and the effectiveness of the energy transition.