What is grid-scale energy storage? Solar Forums › Forums › Energy Storage & Batteries › What is grid-scale energy storage? This topic has 0 replies, 1 voice, and was last updated 5 months ago by Nona Chew. Viewing 1 post (of 1 total) Author Posts August 15, 2025 at 5:19 pm #2923 Nona ChewParticipant Large systems that store electricity for the power grid to improve reliability and flexibility. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In