3. Give the formula to find house hold consumption of electrical energy.
Answers
Answer:
this is the answer to the question you asked about
Answer:In order to establish how your own electricity consumption compares with figures quoted previously you could
1. Check you own electricity bills over the period of a year to calculate how much electricity you use and how much it costs you.
2. Alternatively you could calculate your own electricity consumption figures using our Household Electricity Consumption Guide. See also the instructions on how to use the guide - Instructions
This can help you calculate how much electricity you use in your house or individual rooms within the house - living room, kitchen, bedrooms / offices, and bathrooms.
The amount of energy a specific appliance consumes can be illustrated in the following formula:
Wattage x Hours Used Per Day
1000
= (1 kilowatt (kW) = 1,000 Watts)
= Daily Kilowatt-hour (kWh) consumption
Multiply this by the number of days you use the appliance during the year for the annual consumption.
You can then calculate the annual cost to run an appliance by multiplying the number of kWh per year used by your electricity suppliers standard electricity charge per kWh consumed, typically around 6.8p/kWh
Explanation:If you watch TV 4 hours a day you can calculate how much electricity this will use per year.
TV Power rating = 100 Watts x 4 hours / day x 365 days / year
1000
= 146 kWh x 6.8 p / kWh
= £9.98 / year
2. Check how much electricity your personal computer and monitor use
Personal Computer and Monitor (220+150)
= 370 Watts x 4 hours/day x 365 days/year
1000
= 540 kWh x 6.8 p / kWh
= £36.73 / year