April 2018, Vol.245, No.4
Features
The Great German Gas Switch-Over
By Nicholas Newman, Contributing Editor Germany is at the beginning of a 7 billion euro gas infrastructure project to switch 30% of its gas customers from low-calorie Group L to high calorie Group H natural gas. For technical reasons, and under weights-and-measures regulations, the two gas qualities have to be transported in separate systems within defined ranges, and customers cannot switch from one to the other unless their gas appliances are adjusted. Due for completion by 2030, 57 German utilities will convert the gas appliances of 5 million households, as well as all industrial and biogas plants and gas-fired power stations to Group H natural gas in the two regions. (Figures 1 an

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