Piped Natural Gas (PNG)

Clean Energy for Households

Clean Energy for Households

The household use of PNG has picked up in India especially with multiple use of natural gas in the houses. PNG can be used for cooking, water heating, space heating, air conditioning, refrigeration and power generation. The concept of a single switch solution in the household sector is picking up momentum. This concept provides that a household could be a self-contained gas user to meet all its energy needs in one go.

GAIL and its CGD Joint Venture Companies / Subsidiaries have provided PNG connections for around 40.94 Lakhs households. It is pertinent to note that GAIL and its CGD JVCs / Subsidiaries are currently providing approximately 66% of the total PNG connections in India.

Industrial PNG

CCost and supply of energy can play a significant role in industrial operations. Industries require a continuous and reliable natural gas supply which can provide better efficiency and economy. A broad range of industries like Chemicals, Food Processing, Engineering Goods, Power Generation, Glass Industries etc. are using Industrial PNG. Gas is used by these industries for application like Heating - Boiler, Thermic Fluid Heater, Furnace; Cooling- Absorption Chiller; Power- Gas Engine and Gas Turbine; Process- for dryers, furnace, oven etc.

GAIL and its CGD Joint Venture Companies / Subsidiaries are supplying PNG to over 3723 industrial units across the country.

Industrial PNG

Commercial PNG

Commercial PNG

In the commercial sector, PNG has been found to be very useful in applications like cooking, air conditioning and power generation. The quality of services plays a significant role in the commercial sector. This customer oriented segment comprises of Hotels, Restaurants, Hospitals, Dairies, Bakeries, Cold Storages, Malls, Shopping Complexes, Shops, Educational institutes, Hostels etc. Major applications of PNG in this category are in kitchens, ovens, boilers, geysers, refrigerators etc. Some Complexes, offices, malls use PNG for power generation and Air Conditioning also.

There is thus no hassle of handling, refilling and changing of cylinders. The uninterrupted supply of the natural gas as fuel to the commercial units helps them to provide better quality of service to its customers. When compared with other available alternative fuels like commercial LPG, PNG is cheaper. Further, GAIL and its CGD Joint Venture Companies / Subsidiaries are supplying PNG to over 11108 commercial units.

Uninterrupted supply

  • PNG network offers continuous and adequate supply of natural gas, doing away with the problems of storing gas in cylinders.

Unmatched convenience

  • No hassles of booking LPG cylinder and no long wait for its delivery. No tedious routine of checking LPG refill cylinder for any suspected leakage or it being underweight during delivery. The user is spared the inconvenience of connecting and disconnecting the LPG cylinder, and saves space occupied by LPG cylinders.


  • Natural Gas is cheaper compared to other fuels in the same sector.


  • Narrow inflammability range makes PNG one of the safest fuels. The combustible mixture of natural gas and air does not ignite if the mixture is leaner than 5% and richer than 15% of the air-fuel ratio required for ignition.
  • Natural gas is lighter than air. Therefore, in case of a leak, it quickly disperses into air with adequate ventilation.
  • PNG is supplied through pipelines at a very low pressure, so it is a safer system as the quantity of Natural Gas is very small inside the premises.
  • In case of fire, PNG supply can be cut off through valves provided in the pipelines inside and outside of the kitchen.
  • Since natural gas is odourless, ethyl mercaptan (a chemical that has a sulphur-like odour) is added before distribution, to give it a distinct odour. This is similar to the odour of LPG and serves as a safety device by allowing it to be detected in the atmosphere in cases of leak.


  • Natural gas is being used predominantly as a versatile fuel in many major cities catering to domestic and commercial applications, as fuel for cooking, heating water, space heating, air conditioning, etc.

PNG - Applications

Piped Natural Gas (PNG): The City Gas Distribution system consists of underground pipeline distribution network inside the city to supply natural gas to different consumers for varied applications.

Sector-wise Applications

Domestic Sector Commercial Sector Industrial Sector
Cooking Cooking Power Generation
Water heating Water heating Dryers
Air Conditioning Air Conditioning Furnaces
Space Heating Space Heating Boilers
  Steam Generation Steam Generation
  Power Generation  
Last Updated: 30th May, 2017

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