Zhaoyuan, the gold city, keeps a steady rhythm of old-community renovation, and charging facilities now ride along as a base-category item. The economics are simple: when excavation, surface restoration and tray runs are already on the contractor's programme, adding charging costs 20–30% less than doing it alone. The paperwork matters as much as the wiring — renovation projects need stamped drawings and acceptance files that survive inspection.
Bundle with the renovation programme
Where a compound is already in a renovation batch, we coordinate with the general contractor or the street office, deliver a compliant technical package — electrical drawings with official stamps, equipment lists, fire-compliance notes and acceptance documentation — and install as a sub-item of the programme. Shared earthworks, restoration and tray routes typically cut the standalone cost by 20–30%, and the compound gets one tidy construction season instead of two.
Cold-country equipment details
Winters reach about −12°C: low-temperature-rated components and anti-freeze cabling, IP54+ protection, cabling in conduit with tray earthing at 4 ohms or better. Siting rules apply as everywhere — near building entrances but clear of evacuation routes, lit and camera-covered, hardened ground that drains, a metre or more from gas piping.
O&M at 100 km, including takeover
Zhaoyuan projects run on the area model: 7×24 platform monitoring, 4-hour fault response, remote-first fixes, periodic inspection rounds for scattered township points. We also take over maintenance of existing third-party stations — onboarding them to the Dongdian Huichong platform where possible so the property sees one dashboard, one settlement and one accountable phone number.
How we deliver in Zhaoyuan City
- Free survey — site walk-through, photos, clamp-meter load recording where capacity is tight, then a written proposal with a fixed price.
- Grid application — we prepare drawings and paperwork and deal with the power supply company, so the property does not chase forms.
- Construction — in-house crews, cable trays and distribution boxes done to specification, typical duration 7–15 days.
- Platform onboarding — every device registered on Dongdian Huichong: scan-to-charge, billing, remote control, revenue dashboards and automatic fault work orders.
- Operation and maintenance — 7×24 monitoring, 4-hour fault response, on-site attendance within 24 hours, local spare parts, quarterly inspection.
Four safety configurations we do not cut
| Configuration | What it does | Why it matters |
|---|---|---|
| Independent RCD per port | 30 mA trip, under 0.1 s | One faulty port does not cut the whole station or other residents' charging |
| Overload cut-off with self-recovery | Breaks on abnormal current, restores automatically | Ageing batteries and poor chargers can pull 500 W+; unmanaged heat is a main fire cause |
| Full-charge auto-stop plus 8-hour cap | Stops on detected full charge, hard stop at 8 h | Prevents overcharge swelling and endless floating |
| Power-off memory | Restores billing state after an outage | Avoids disputes during the stormy season |
Three ways to cooperate
| Model | Cash flow for the property | Revenue share |
|---|---|---|
| We invest and operate | Zero cost; positive from month one | Property receives 30–40% of service-fee revenue |
| Joint investment | One-off contribution; payback typically 3–5 years | Property share up to 50–60% |
| Property buys, we maintain | Largest upfront spend | All revenue to the property; annual O&M fee |
Whichever model you choose, the property gets a platform account and sees every session, hour and yuan of revenue in real time. Settlement is calculated on the platform, so reconciliation is a report, not an argument.
Reference price ranges
| Scope | Reference range (RMB) |
|---|---|
| 10-port e-bike station incl. standard installation (cabling within 30 m, RCD box, signage) | 12,000–22,000 |
| 20-port e-bike station incl. standard installation | 18,000–32,000 |
| 7kW AC charger, device | 1,500–3,500 per unit |
| 7kW AC charger, installation | 1,000–2,500 per unit |
| 60 m² charging shelter with 10 ports, fire kit, lighting and CCTV | 35,000–55,000 |
These are public industry reference ranges, not a Dongshang quotation. Site conditions vary widely across Yantai; the binding figure is the fixed-price quotation issued after a free survey. We quote one price with no hidden additions.
Common questions
- Can charging be added inside an ongoing renovation batch?
- Yes, and it is the cheap way: shared excavation, restoration and tray runs cut 20-30% against standalone construction. We coordinate with the contractor or street office and install as a sub-item of the programme.
- Do you provide stamped drawings for the renovation contractor?
- Yes — stamped electrical drawings, equipment lists, fire-compliance notes and a complete acceptance file, delivered as part of the package.
- Can you take over an existing station another company installed?
- Where technically possible we onboard it to the Dongdian Huichong platform and run 7x24 monitoring, 4-hour response and quarterly inspection under a single accountable contract.
Charging services across Yantai
We also survey, build and operate in Qixia · Haiyang · Zhifu and every other district of Yantai. Related pages: community charging projects, e-bike charging stations, charging shelters, cooperation models for property managers and the online calculators for investment estimates.