§ Mr. Eadie
The current annual natural gas requirements are around 16,000 million therms. Assuming established conversion processes, it is estimated that between 90 million and 105 million tonnes of coal would be required to produce the equivalent amount of substitute natural gas. Current estimates of the cost of SNG by established conversion processes are in the range 25 to 40 pence per therm. However, the technology for the production of SNG from coal is being developed 493W further, and it would be misleading to apply estimates based on current technology to the future situation.