In Ukraine, technical specifications (TS) have been issued for the connection of energy storage installations (ESI) totaling 5 GW, however, only 650 MW have been implemented so far, and many TS remain "dormant" and hinder the development of this area in the energy sector, reported Yurii Ostapiuk, deputy director of the department - head of the investment policy and technical development division at the national regulator NKREKP.