How cost hour run standard (, How much does it cost per hour to run a standard (not these new "green" bulbs) 60 watt electric light bulb?. How cost run light bulb? - . answers, Depending upon what type of bulb and the wattage of the bulb, it could cost upwards of $35.00 to run one light bulb for entire year. the year i speak of consists. How watt hour cost - ., The cost to run a 150 watt space heater per month can vary. first, you will need to find out the cost of your electricity per hour (divide kilowatts used by number. How cost light bulb? - yahoo, How much does it cost to have one light bulb on for 1 day. How coal required run 100-watt light bulb 24, To find out how many tons of coal were burned for our light bulb we divide 876 kwh by 2,460 kwh/ton. that equals 0.357 tons. multiplying by 2,000 pounds/ton we get. Energymiser101: cost run appliances?, Hi daniel: the per-hour cost is between 4 cents and 5 cents for a 60-watt light bulb. that doesn't sound like much, but on a monthly basis that's more than $6 a bulb.