Article 23 10

10.   The Commission is empowered to adopt delegated acts in accordance with Article 28 to amend Annex IV in order to adapt the factor indicated in cell 7 and, where applicable, cell 14 of the table in Part B of that Annex and used in the formula referred to in paragraph 1 of this Article, based on the developments in the cost of energy, and to amend the multiplication factor laid down in paragraph 5 of this Article, based on the indexation of the average cost of electricity in the Union.