Article 18 4.

Projects of common interest falling under the energy infrastructure categories set out in point (1)(e) and points (2) and (5) of Annex II shall also be eligible for Union financial assistance in the form of grants for works, where the concerned project promoters, in an evaluation carried out by the relevant national authority or, where applicable, the national regulatory authority, can clearly demonstrate significant positive externalities, such as security of supply, system flexibility, solidarity or innovation, generated by the projects and provide clear evidence of their lack of commercial viability, in accordance with the cost-benefit analysis, the business plan and assessments carried out, in particular by potential investors or creditors or, where applicable, a national regulatory authority.