Page "Gas lighting" Paragraph 56

Many gas utility companies will still quote a fixed periodic rate for a customer-maintained gas lamp and homeowners still utilize such devices.

However, the high cost of natural gas lighting at least partly explains why a large number of older gas lamps have been converted to electricity.

Solar-rechargeable battery-powered gas light controllers can be easily retrofitted into existing gas lamps to keep the lights off during daylight hours and cut energy consumption and green-house gas carbon emissions by 50 %.