Connection procedure & electricity tariffs
Step-by-step guidance for getting power in Du Long Industrial Park and how electricity bills are calculated under current regulations.
Connection steps
- 1
Submit a supply request
Submit the application with documents according to the checklist – in person, by email, or call our hotline for guidance.
- 2
Survey & connection agreement
Du Long Power surveys the site and agrees the connection point, capacity and voltage level.
- 3
Design & construction of electrical works
The customer builds the substation and lines as agreed (or hires Du Long Power for a turnkey solution).
- 4
Acceptance & power purchase agreement
Review of test reports, acceptance of the works and signing of the power purchase agreement.
- 5
Metering & energization
Remote-reading meters are installed and sealed; the supply is energized.
Document checklist
Reference list for companies applying for a new power supply. Exact requirements may vary with the capacity.
Legal documents
- Power supply / connection application (standard form)
- Enterprise Registration Certificate (copy)
- Investment Registration Certificate (for FDI companies)
- Land or factory lease agreement in Du Long Industrial Park
- Power of attorney (if the applicant is not the legal representative)
Technical documents
- List of electrical equipment and expected total load (kW / kVA)
- Factory master plan with the proposed substation location
- Power demand schedule: energization date and capacity ramp-up phases
- Substation and line design documents (if self-invested)
- Equipment test reports and acceptance records before energization
Contact our hotline or email to receive the forms and the document list that apply to your project.
New grid connection & power supplyElectricity tariffs & how bills are calculated
Electricity for companies in Du Long Industrial Park is priced according to the Government's retail tariff for manufacturing customers. We do not publish fixed prices on this website because tariffs are adjusted from time to time.
- 01
By time of use
Multi-tariff meters record peak, normal and off-peak consumption separately. Each period has its own price – peak is the highest, off-peak the lowest.
- 02
By connection voltage
Prices differ by voltage level: 110 kV and above; 22 kV to below 110 kV; 6 kV to below 22 kV; below 6 kV. The higher the voltage, the lower the price.
- 03
Reactive power
If the power factor cos φ is below the required level (0.9), the customer pays for reactive power. A suitable capacitor bank avoids this charge.
Electricity bill = Σ (Energy in each time band × Unit price of that band) + Reactive power charge (if any) + VAT
Meter readings are collected automatically each billing cycle; each invoice clearly states the amount due and the payment deadline.
View the official retail tariff (EVN)(opens in a new tab)Documents & forms
Download the forms to prepare your application in advance. PDF files are stored in the public/docs folder.
- Power supply application (template)Coming soon
- Connection agreement request (template)Coming soon
- Capacity increase/decrease request (template)Coming soon
- Power purchase agreement templateComing soon
Get in touch
Planning to invest in or expand a factory in Du Long Industrial Park?
Talk to us for a free consultation on your power supply solution, substation capacity and investment cost, tailored to your production plan.