Stationary LNG Refueling Station: Design and Planning Guide

A stationary LNG refueling station is planned around the vehicles it must serve, their fueling demand, available site conditions, and applicable safety requirements. Start by documenting peak and daily fuel demand, delivery access, storage autonomy, dispenser requirements, and future expansion needs. Then develop a site layout and process design with qualified engineering support, and confirm local permitting and code requirements before equipment procurement. At Dongzhao, we work with buyers to define project requirements and identify a suitable LNG station configuration; final scope depends on the site, operating plan, and requested equipment.

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Who This Guide Is For

This guide is intended for fleet operators, project developers, EPC contractors, and procurement teams considering an LNG refueling facility. It is also useful for buyers comparing station configurations or preparing a technical inquiry to manufacturers and suppliers. The focus is on planning decisions rather than a universal equipment specification, because station design must be tailored to the project and reviewed against local requirements.

How a Stationary LNG Refueling Station Works

A stationary LNG station receives liquefied natural gas, stores it in insulated cryogenic equipment, and transfers it to compatible vehicles through a controlled dispensing system. Depending on the design, the facility may also include LNG unloading equipment, pumps, piping, valves, instrumentation, control systems, and provisions for managing pressure and vapor. These components must be engineered as an integrated system rather than selected independently.

Basic LNG Properties to Consider

LNG is natural gas cooled into a liquid for storage and transport. It is commonly stored at approximately -162°C, although actual operating conditions depend on LNG composition and system design. As a planning reference, 1 m³ of LNG can produce roughly 600 m³ of natural gas after vaporization; the conversion varies with composition and reference conditions. LNG density is also composition-dependent, often falling in an approximate range of 430–470 kg/m³.

Station Types and Configuration Options

Station configurations differ in storage capacity, unloading method, pumping arrangement, dispensing capacity, and degree of automation. A fleet depot with predictable routes may prioritize reliable on-site storage and scheduled deliveries, while a site serving varied traffic may need a different approach to access, operating hours, and dispensing capacity. The right configuration is determined by demand and operating requirements, not by a single standard station size.

Components to Define in the Scope

Storage: Specify required usable inventory, delivery frequency, site constraints, and the desired operating reserve.
Unloading: Confirm the delivery vehicle interface, hose and connection requirements, unloading procedure, and vehicle access route.
Transfer and dispensing: Define the required fueling positions, vehicle compatibility, expected fueling pattern, and target service capacity.
Controls and safety systems: Identify monitoring, emergency shutdown, alarms, access control, and operating interfaces required by the design and local rules.
Utilities and civil works: Assess power, foundations, drainage, traffic circulation, site boundaries, and any required separation distances.

Match the Station to the Application

Begin with actual or forecast fleet activity rather than a supplier’s standard package. Record daily LNG consumption, peak fueling periods, number and type of vehicles, expected growth, and the time available for refueling. A practical planning dataset could include demand in kg/day, peak dispensing demand in kg/h, and delivery frequency in days; these are project inputs, not universal design values.

Build a Demand Profile

Separate average demand from peak demand, since an average alone may not describe queues or operational pressure during busy periods. Include shift schedules, seasonal changes, maintenance plans, and any expected fleet additions. If demand data is uncertain, prepare more than one scenario and ask the engineering team to show how each would affect storage, dispensing, and delivery planning.

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Station Selection Framework

Define operating requirements. Document vehicle types, daily and peak demand, fueling schedule, staffing model, and business continuity priorities.
Screen the site. Review plot boundaries, access for LNG delivery vehicles, ground conditions, nearby activities, utilities, and potential expansion space.
Set capacity assumptions. Establish the required storage autonomy and delivery pattern with the project team. Do not select tank capacity without considering supply reliability, logistics, and site constraints.
Develop the process and layout. Coordinate storage, unloading, pumping, dispensing, control, and safety provisions as one system. Confirm that vehicle circulation and maintenance access are workable.
Verify regulatory requirements. Identify the applicable codes, permits, environmental rules, and authority review process for the project location before finalizing specifications.
Compare lifecycle needs. Evaluate not only equipment cost, but also installation scope, delivery logistics, commissioning responsibilities, training, maintenance, and future expansion.

Pricing, Minimum Order, and Lead Time

There is no reliable single price or delivery schedule for every stationary LNG station. Project cost depends on the selected capacity and equipment, site preparation, local engineering and permitting, transportation, installation scope, and commissioning requirements. Minimum order quantities and lead times also depend on the agreed supply scope, production planning, customization, and destination.

For a useful quotation, provide a site location, preliminary layout or plot plan, demand profile, preferred delivery arrangement, vehicle and dispenser information, utility conditions, and target project schedule. Ask suppliers to identify what is included and excluded, including civil works, electrical work, installation supervision, training, and start-up support. This makes proposals easier to compare and helps reveal scope gaps before contract award.

Supplier Evaluation Checklist

Choose a supplier that can discuss the full station interface and explain which design assumptions still need confirmation. Request project-specific technical documentation and clarify who is responsible for engineering coordination, equipment supply, installation support, commissioning, and after-sales service. Verify claims and compliance documentation against the requirements of your project and jurisdiction rather than relying on general marketing language.

Can the supplier map the proposed equipment to your demand profile and operating schedule?
Are battery limits, interfaces, exclusions, and customer responsibilities clearly stated?
Can the supplier provide relevant drawings, equipment data, and documentation for technical review?
Are inspection, testing, shipment, installation support, and commissioning responsibilities defined in writing?
Is there a clear plan for operator training, maintenance information, spare parts, and technical support?
Can the supplier explain how requested customization may affect cost, schedule, and project approvals?

Common Planning Mistakes to Avoid

One frequent mistake is sizing storage from average consumption while ignoring peak demand, delivery interruptions, or the required reserve. Another is treating the station package as separate from site access, foundations, utilities, and vehicle circulation. Buyers should also avoid fixing equipment specifications before confirming permitting requirements and should not assume that a quoted equipment price covers installation or commissioning.

How Dongzhao Can Support Your Project

At Dongzhao, we support B2B buyers evaluating stationary LNG refueling station requirements and sourcing an appropriate equipment solution. We can review the information available for a project, discuss configuration considerations, and clarify the supply scope needed for a quotation. Final technical selection should be based on confirmed operating data, site review, applicable regulations, and coordination with the project’s qualified engineering team.

Key Takeaways and Next Steps

A stationary LNG refueling station should be designed around fleet demand, site conditions, delivery logistics, and local safety and permitting requirements. LNG’s cryogenic storage conditions and composition-dependent properties make integrated engineering and clear operating procedures essential. There is no universal capacity, price, or schedule that suits every project.

To move forward, prepare your demand profile, site information, vehicle requirements, preferred delivery arrangement, and target timeline. Use these inputs to request a project-specific configuration and a written breakdown of equipment, services, exclusions, and responsibilities. Contact Dongzhao with your project details to begin a technical discussion and quotation review.