[ NIC INFORMATION ]
SLASH YOUR ELECTRIC BILL AND HELP THE ENVIRONMENT
Two-thirds of Japan’s electricity comes from the burning of fossil fuels (coal, oil, and gas) and Japan is the world’s 3rd biggest producer of electricity, with each household in the country on average consuming over 300 kWh per month. Following the March 11 earthquake and subsequent fears over nuclear safety, Japan’s reliance on gas and oil-fired power stations has increased, so saving electricity doesn’t just save money it also saves the environment.
How much money can you save on your electricity bill? Did you know that the average household in Japan can save up to 7% on their annual electricity bill by simply unplugging electrical appliances when not in use. Computer modems and appliances that use remote controls like TV’s, air conditioners, and audio systems are the biggest “offline” guzzlers. Each kWh you save, lowers your carbon footprint by 470g of CO2.
A kilowatt-hour is the amount of energy equivalent to a steady power of 1 kilowatt running for 1 hour. For example, when a light bulb with a power rating of 100W is turned on for ten hours, the energy used is 1000 watt-hours or 1kWh.
How many of the below measures do you do? Do them all and shave up to nearly 1000 kWh a year from your annual usage!
Data Source:The Energy Conservation Center Japan
Illustrations: City of Nagoya Environmental Office
★Air Conditioner (2.2kW unit for 6 tatami mat room)
- Adjust the temperature setting 1°C higher during cooling – could save you up to 30 kWh per year.
- Adjust the temperature setting 1°C lower during heating – could save you up to 53 kWh per year.
- Use for 1 hour less per day during summer – could save you up to 19 kWh per year.
- Use for 1 hour less per day during winter – could save you up to 41 kWh per year.
- Clean the filter twice a month – could save you up to 32 kWh per year.
Closing curtains or blinds can also increase an air conditioner’s efficiency by 20 to 30%.
★Refrigerator (400 litre type)
- Avoid over-packing and keep half-full - could save you up to 44 kWh per year.
- Change the cooling setting from high (強) to middle (中) - could save you up to 62 kWh per year.
- Open the fridge & freezer for 10 seconds at a time instead of 20could save you up to 6 kWh per year.
★Desktop & Laptop Computers
- Instead of using a screen saver switch off your computer when not in use:
- Using a desktop computer for one hour less a day – saves you 32 kWh per year.
- Using a laptop computer for one hour less a day – saves you 5 kWh per year.
- Using “stand by” mode instead of screen saver when not in use saves 70 – 90% electricity.
- Turn off modem when not using PC:
- turn off a wireless modem – could save you up to 114 kWh per year.
- turn off a regular modem- could save you up to 76 kWh per year.
★Lighting (4 standard 54W bulbs running for 6 hours a day)
- Change from a 54W bulb to a 12W florescent bulb – saves you 84 kWh per year.
- Switch off lights in empty rooms:
- Using a 12W florescent bulb for one hour less a day – saves you 4 kWh per year.
- Using a 54W bulb for one hour less a day – saves you 20 kWh per year.
★Heated Toilet Seat (Autumn to Spring)
- Close toilet lid when not in use – saves you 35 kWh per year.
- Turn seat temperature setting from middle (中) to low (弱)- saves you 26 kWh per year.
★Washing Machine (6kg washer unit)
- Wash one daily load 80% full rather than 2 daily loads 40% full – could save you up to 6 kWh per year.
★TV (watching 1 hour less TV a day)
- 25 inch cathode-ray type TV – saves you 32 kWh per year.
- 20 inch LCD TV – saves you 15 kWh per year.
- 42 inch plasma TV – saves you 98 kWh per year.
- Unplug appliances when not in use – could save you up to 308 kWh per year.
CALCULATING YOUR ELECTRIC BILL
There are two payment dates on your monthly electric bill that Chubu Electric sends you. If you don’t pay your bill by the first date (早収料金適用期限日), a 3 percent surcharge will be added to a future bill. If you fail to pay by the second date (お支払い期限日) you run the risk of being cut off.
Electricity usage is measured in kilowatt-hours. A kilowatt-hour (kWh) is the amount of energy equivalent to a steady power of 1 kilowatt running for 1 hour. For example, when a light bulb with a power rating of 100W is turned on for ten hours, the energy used is 1000 watt-hours or 1kWh.
The price of a kWh varies depending upon your payment plan, how much electric you consume, and the size of service breaker in your home’s fuse box.
Example Bill (standard residential contract – “meter-rate lighting B” (従量電灯B)
- Basic Charge: This differs according to your “contract current” which determines the maximum electric current available. You can check your contract current by looking at the colour of your fuse box’s breaker switch sticker. Basic charge varies from 273 Yen per month for a 10A circuit breaker (red sticker) up to 1638Yen per month for a 60A circuit breaker (black or weak green sticker).
- Energy Charge
This is in 4 parts:
- The first 120 kWh are charged at 17.05 Yen.
- Any usage between 120 kWh and 300 kWh is charged at 21.09 Yen.
- Any usage over 300 kWh is charged at 22.52 Yen.
- A fuel surcharge is also added on for each of the above usage brackets; as of May 2011 it is – 0.24 Yen per kWh for standard residential properties.
- Example: Monthly use 320 kWh
①120 x 17.05 + ②180 x 21.09 + ③20 x 22.52 + ④320 x – 0.24 = 6215.6 Yen
- Solar Surcharge: This is the surcharge added for the purchase of surplus solar energy.
For 2011 the rate is 0.06 Yen per kWh for standard residential properties.
- Example: Monthly use 320 kWh → 0.06 x 320 = 19.2 Yen
The total bill for a 30A apartment that uses 320 kWh in May 2011 would be:
Basic charge (819 Yen) +Energy charge (6215.6 Yen) + Solar surcharge (19.2 Yen) = 7053 Yen
[ NIC INFORMATION ]