Electric utilities are always searching for ways to minimize costs, improve availability, and reduce emissions. Recent changes in the price of natural gas have made that fuel economically attractive, and it has the added benefit of reduced air emissions. For utilities with existing coal-fired units, conversion from coal firing to natural gas firing might be an option worth considering.

Why Consider Fuel Switching?

The first step in the process is to identify the forces that drive the decision to convert from coal to gas. The key forces are regulatory (both in terms of emissions and as an offset for a new unit), fuel costs, the age of the plant, and the need for plant output.

Regulatory forces are currently in a state of flux, and there are a wide range of proposed rules and legislative efforts that could have a far-reaching impact on coal-fired operation. Carbon dioxide controls seem to be coming in the near future that will require some additional operating restrictions placed on power plant owners. There also may be other regulatory issues to evaluate, such as New Source Review and offsets for other emissions regulated by state and federal laws. Gas fired power plant boiler has been developed with a higher operation efficiency.

The price of natural gas has recently become more attractive as a baseload fuel due to additional supply and reduced demand from general industry. There are many different projections of where gas prices might be in the near future, all of which are based on the forces of supply and demand. The current price of natural gas is relatively low and stable compared to previous years. The gas fired boiler has a good trend with the world industry background.

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