退役动力电池降级用于储能，成本与一致性风险并存，检测分选是产业化的瓶颈。
Retired EV packs downgraded to stationary storage; cheap but inconsistent, with screening and sorting the industrial bottleneck.
AI 光伏设计平台免费开放：从术语到完整设计图纸与可研报告。