Key points in this article
A lesson from elsewhere
What moves people here is not any number but that screening became something residents can actually use. The practice worth recording is simple: a single thorough pass costs less than repeated fixes that drain budget and patience over several seasons of neglect.
What Yantai can borrow
Local conditions differ, yet the logic transfers: understand the current state first, then plan; verify at small scale, then expand. One principle fits especially well, reserving margin to lower later costs and avoid painful retrofits nobody budgeted for.
Is it worth it
There is no universal answer; it depends on usage frequency and cycle. We suggest accounting over three years, folding in maintenance, energy use and risk, so the conclusion is clearer than intuition alone and easier to defend to stakeholders.
Dongshang New Energy offers on site measurement precisely so the math stays in the open. When the ledger is clear, the decision becomes simple, and money meant for safety is not quietly spent elsewhere after the launch excitement fades. These notes are kept current by our on site teams across Yantai districts.