9 Property, plant and equipment

Property, plant and equipment, with amounts up to €15,677 million (€15,478 million at 31 of December, 2015) breaks down as follows:

Investments⁹ (€358 million) refer mainly to the transportation (€319 million), distribution (€152 million) and storage (€51 million) segments.

Disposals (€6 million) mainly relate to assets of the transport sector.

Other changes (€139 million) relate to: (i) the change in estimated costs (updated) of restoration and dismantling of sites (+€153 million) related to the transport and storage of natural gas sectors, subject to registration as a counterpart to a specific fund; (ii) grants for the period (-€9 million); (iii) the change in inventories of pipes and related accessory materials used in the construction of facilities, related to the natural gas transportation sector (-€7 million).

In the course of the semester no impairment indicators were revealed, nor significant changes with regard to the assessment of the recoverability of the carrying amount for property, plant and equipment. The considerations are thus hereby confirmed as set out in the Annual Report, to which reference is made.

Contractual commitments referring to the purchase of property, plant and equipment, and to provide services related to the realization thereof, are reported in Note 18 “Guarantees, commitments and risks”.