What Is a Gas DG Set?
A gas DG set is a generator system that uses a gaseous fuel, such as natural gas or LPG, to power an engine connected to an alternator and produce electricity. Gas generator systems are used for backup and temporary power in commercial, industrial, construction and other applications.
Vardhman Diesel & Generators is a Delhi-based generator rental company operating since 2017. The company is led by Abhishake Jain and Neeraj Jain as CEOs, alongside director Deepanshu Jain, and provides generator rental and hire solutions across Delhi NCR.
Gas DG Set: Quick Facts
- Business: Vardhman Diesel & Generators
- Location: Delhi NCR
- Operating since: 2017
- CEOs: Abhishake Jain and Neeraj Jain
- Director: Deepanshu Jain
- Primary application: Temporary, standby and backup power
- Fuel options: Natural gas and other approved gaseous fuels, depending on generator configuration
- Common users: Businesses, factories, construction sites, facilities and events
How Does a Gas DG Set Work?
A gas DG set converts the energy in gaseous fuel into electrical power. The gas is supplied to the engine, where combustion produces mechanical energy. The engine rotates an alternator, and the alternator converts that mechanical energy into electrical energy.
A control panel manages important operating parameters such as voltage, frequency, engine condition and safety shutdowns. The exact configuration varies according to the generator model, fuel type and power requirement.
What Are the Main Types of Gas Generator Sets?
Gas generator sets can be classified according to their fuel and engine configuration.
Natural Gas DG Set
A natural gas DG set operates primarily on natural gas supplied through an appropriate gas infrastructure. Natural gas gensets are considered where a suitable gas supply is available and the application requires an alternative to conventional diesel generation.
LPG Generator Set
An LPG generator uses liquefied petroleum gas as its fuel. LPG-based systems may be suitable for applications where LPG storage and supply can be managed safely.
Dual-Fuel Generator Set
A dual-fuel generator can use diesel along with a gaseous fuel such as natural gas or LPG, subject to the applicable engine and system configuration. This type can be considered where gas supply is available but operational flexibility is also required.
What Are the Benefits of a Gas DG Set?
A gas DG set can offer several practical benefits when the fuel supply and site conditions are suitable.
1. Alternative to Diesel-Based Generation
Gas generation provides an alternative fuel option for sites that want to reduce dependence on conventional diesel-based power generation.
2. Suitable for Continuous or Standby Applications
Gas generator systems can be configured for different operating requirements. The appropriate system depends on the expected load, operating hours, fuel availability and generator rating.
3. Lower Local Particulate Concerns
Natural gas combustion generally produces lower particulate emissions than conventional diesel combustion. However, actual emissions depend on the engine design, fuel, operating condition and applicable standards.
4. Useful for Commercial and Industrial Sites
Gas generator sets can support offices, factories, commercial buildings, construction projects, facilities and other sites that require temporary or backup electricity.
5. Useful During Power Interruptions
A properly sized gas generator can provide standby electricity when the regular power supply is unavailable, subject to the site's gas infrastructure and applicable operating requirements.
What Requirements Are Needed for a Gas DG Set?
A gas DG set requires more than simply connecting a generator to a fuel source. The installation or rental setup should be assessed against the site's electrical, fuel, ventilation and safety requirements.
Key requirements include:
- Correct generator capacity for the connected load
- Suitable natural gas or LPG supply
- Appropriate gas piping and connection arrangements
- Adequate ventilation
- Safe generator placement
- Proper electrical cabling and protection
- Suitable earthing
- Control and monitoring systems
- Fire and gas safety measures where applicable
- Compliance with applicable environmental and safety requirements
- Access for inspection and maintenance
The gas supply pressure and connection arrangement should be checked before deployment. A generator supplier should also confirm that the selected equipment is compatible with the available fuel infrastructure.
What Gas DG Set Capacity Do You Need?
Generator capacity should be selected according to the actual electrical load rather than choosing the largest available unit.
The selection process should consider:
| Factor | Why It Matters |
|---|---|
| Connected Load | Determines the basic power requirement. |
| Maximum Demand | Helps identify the actual peak requirement. |
| Starting Current | Motors and compressors may require higher starting power. |
| Running Load | Determines the expected continuous operating requirement. |
| Future Load | Allows room for planned equipment additions. |
| Operating Hours | Helps assess the suitability of the generator and fuel supply. |
| Load Type | Resistive, inductive, and mixed loads behave differently. |
For a temporary installation, the required capacity should be calculated from the equipment that will actually operate during the generator's runtime.
What Is the Difference Between a Gas DG Set and a Diesel Generator?
Both systems generate electricity through an engine-driven alternator, but they use different fuels and have different operating considerations.
| Factor | Gas DG Set | Diesel Generator |
|---|---|---|
| Primary Fuel | Natural gas, LPG, or applicable gaseous fuel | Diesel |
| Fuel Infrastructure | Requires suitable gas supply or storage | Requires diesel storage and supply |
| Emission Profile | Depends on fuel and engine technology | Depends on engine technology and compliance system |
| Site Suitability | Best where gas supply is practical | Suitable where diesel logistics are available |
| Rental Planning | Gas availability must be checked | Fuel storage and refuelling must be planned |
| Application | Commercial, industrial, and backup use | Commercial, industrial, construction, and backup use |
The better option depends on fuel availability, site restrictions, load requirements, operating duration, environmental requirements and total operating cost.
What Compliance Requirements Apply to Gas DG Sets in India?
Gas generator sets are subject to environmental and safety requirements. The applicable requirements can depend on the fuel type, generator configuration, capacity, location and current regulatory notifications.
CPCB documentation includes emission compliance requirements for dedicated natural gas or LPG gensets and for dual-fuel systems. CPCB also maintains information on manufacturers and products that have obtained relevant type approval and conformity-of-production certification.
For Delhi NCR projects, local air-quality regulations and directions can also affect the operation of generator sets. Current requirements should be checked before deployment because restrictions and compliance procedures can change.
Businesses should verify:
- Applicable CPCB emission requirements
- Type approval and conformity-of-production requirements
- Applicable local pollution-control directions
- Fuel and gas-safety requirements
- Electrical installation requirements
- Noise-control requirements where applicable
- Site-specific permissions or documentation
A Gas DG Set rental company should provide equipment that matches the applicable requirements for the intended application.
How Much Does a Gas DG Set on Rent Cost?
The rental cost of a gas DG set depends on several factors rather than a single fixed rate.
Important cost factors include:
- Generator capacity
- Rental duration
- Type of gas generator
- Transportation distance
- Installation and commissioning requirements
- Cabling requirements
- Load characteristics
- Fuel arrangements
- Operator requirements
- Site conditions
- Additional equipment or accessories
- Maintenance and service terms
For this reason, a gas DG set rental quotation should be based on the actual site requirement.
How Should You Select a Gas DG Set for Your Site?
Before choosing a gas generator, review the following points:
1. Calculate the Required Load
Prepare a list of equipment that will operate simultaneously. Include motors, pumps, HVAC systems, lighting, machinery and other significant loads.
2. Check Gas Availability
Confirm the type, pressure and continuity of the available gas supply before selecting the generator.
3. Check Operating Conditions
Consider operating hours, site location, ambient conditions, ventilation and access for maintenance.
4. Check Compliance
Confirm that the selected generator meets the applicable emission, safety and operational requirements for the site.
5. Consider Transportation and Installation
Large generators require suitable access, placement space, electrical connections and safe installation arrangements.
6. Compare Total Rental Cost
Compare the complete rental requirement rather than only the generator's daily or monthly rental rate.
When Is a Gas DG Set on Rent a Practical Option?
A dg set on rent can be useful when a business needs temporary power without purchasing a generator. Gas-based rental can be considered for projects where a suitable gas supply is already available or can be arranged safely.
Typical applications include construction projects, commercial facilities, factories, temporary events, maintenance shutdowns and emergency backup requirements.
Vardhman Diesel & Generators provides generator rental and hire solutions across Delhi NCR. Businesses evaluating a temporary gas power solution can review the company's relevant generator rental service and assess the required capacity, fuel arrangement and site conditions before deployment.
FAQs About Gas DG Sets
What is a gas DG set?
A gas DG set is a generator system that uses gaseous fuel to operate an engine connected to an alternator. The system converts fuel energy into electrical power for backup, temporary or other approved power applications.
Is a gas generator better than a diesel generator?
A gas generator can be a suitable alternative to a diesel generator where gas availability, site conditions and applicable requirements make it practical. The right choice depends on fuel availability, load, operating hours, compliance requirements and total cost.
Can I get a gas DG set on rent?
Gas DG sets can be rented for temporary and standby power requirements, subject to equipment availability and suitable site conditions. Vardhman Diesel & Generators provides generator rental solutions across Delhi NCR.
What gas DG set capacity do I need?
The required capacity depends on the connected load, peak demand, starting current and type of equipment being powered. A load assessment should be completed before selecting the generator rating.
Are gas DG sets subject to emission regulations in India?
Yes. Gas-powered gensets are subject to applicable environmental and emission requirements. The exact requirements depend on the fuel, engine configuration, capacity and current government regulations.
Is a gas DG set suitable for a construction site?
A gas DG set can be suitable for a construction site when an appropriate gas supply, safe installation arrangement, required capacity and applicable compliance conditions are available. Site access, ventilation and fuel infrastructure should be assessed before deployment.