Key points in this article
Storage moves from sideshow to lead role
National new-type storage capacity rose from 3 GW at the early 14th Five-Year Plan to 136 GW today, nearly a 45-fold span. Equivalent utilization hours reached 611 in 2023, 911 in 2024 and 1195 in 2025, proving storage genuinely participates in peak shaving rather than built to sit in the sun, which is what makes solar-storage-charging bankable.
How a solar-storage-charging site pays
Economics rest on three accounts: power self-used from PV, the price spread from off-peak storage to peak release, and capacity-fee savings from ordered charging. Yantai has no shortage of PV resources or demand, so the local charging network can shift from passive consumption to active regulation; Dongshang New Energy and Dongdian Huichong already plan storage into public sites.
Pace beats enthusiasm
Storage safety standards, life decay and levelized cost remain hard constraints, especially lithium thermal safety. Solar-storage-charging is a systems project needing EMS dispatch, fire isolation and long-term O&M, not just panels, batteries and piles. Choosing equipment that is long-maintainable and traceable matters more than chasing the lowest one-time price.