SINGAPORE: Gas tariffs for households will decrease by 0.7 per cent or 0.12 cents per kilowatt hour (kWh) from Apr 1 to Jun 30 this year, City Gas said on Tuesday (Mar 31). With the revision, households will need to pay 17.11 cents per kWh, excluding Goods and Services Tax. Households are currently paying 17.23 cents per kWh.