Economic effects of high or “power” and “water”? Explore.

Previously we introduced CO 2 reduction effect of “power-saving and water efficiency”. So what “power” and “water”, which can lead to savings. Many people think because electricity is higher than the water that image, saving you the “power” effective what’s might, actually. So this “power” and validate specific example savings effects of “water”.
 

Various “power saving” reduction

I often imagine listening to “power” and some think and example estimates I run every day in easy-to-transfer behavior.

Calculation criteria are
Electric [1 kWh] per
Price indication for power [22 Yen]
(Company) ※ national household electric products fair trade Conference
Value of CO 2 emissions [0.332 kg-CO 2 at] (Tokyo electric power reference)

System of Government reduce air-conditioning driving time 1 hour
Let’s examine the effect of reducing the driving time of air conditioning. Because energy consumed in heating and cooling air conditioning of different, only days, divided by the annual electricity must be accurate. Therefore engaged in electricity from the power consumed is complicated to each period.

Reduction effect of air conditioning use, 1, 1: between shortened

Estimated requirements >
Energy-saving performance catalog 2009 Winter Edition resources Energy Agency issued reference
Air conditioning capacity ：2.8kW type (for 8-12 tatami mats)
Power consumption period: average [978 kWh / 251 kWh cooling and heating kWh 727]
Annual electricity prices: average [21,531 Yen]
※ Calculated period of time and power consumption
Model and Tokyo has been calculated under the following conditions.
112, Cooling period 3.6 months （ 6/2-9/21 ）
169, 5.5 Month period heating （ 10/28-4/14 ）
With 18 hours of 6:00-24:00
Cooling time: 27 ° c and heating: 20 ° c

System of Government off TV one hour a day
I think often has been a TV somehow. There are estimates for TV off one hour a day. Samples and we are selling well, with two types of LCD and plasma TV size. Television also, standby power also includes to be annual electricity costs considering the estimates.

Reduction effect of television use, 1, 1: between shortened

Estimated requirements >
Energy-saving performance catalog 2009 Winter Edition resources Energy Agency issued reference
(1) LCD TV 37-inch wide type
Annual electricity consumption: average 155 kWh / year]
Standby power consumption: average 0.25-W
Annual electricity prices: average [¥ 3,406]
(2) Plasma TV 42-inch wide type
Annual electricity consumption: average 207 kWh / year]
Standby power consumption: average [0.13 W]
Annual electricity prices: average [4,553 Yen]
※ Annual consumption power of （kWh / 年） and
Average audience: 4.5 hours and calculate the average latency 19.5 hours relative to

Next, let’s about water-saving effect.

Variety reduction “water conservation”

Following is the “water”. And also some often in life, so I think and the estimates like easy to transfer some running actions.

Calculation criteria are
$ 1 M 3 water per (Note 1 m 3 = 1000 L)
Water and sewer rates estimated price 265 Yen / m 3 (reference, Tokyo)
“Environmental conservation environmental household account book down water CO 2 emissions [0.36 kg] ※” reference

System of Government and small toilet use
When using the toilet, all 流さず in the “large”, and use small and large, and how much effect? Original time estimate the effect of that adopted in TOTO and INAX try trial conditions.

Estimated requirements >
Big 8 L / 6 L small-big and small at the difference between the 2 L
4 Person family (2 men and 2 women) big 1-3 times less per person / 1 day per

If you use small and large toilet reduction

System of Government, 1 minute shower time reduced

Reduction effect of reducing shower times 1 minute

Shower for 1 minute in use 12 L, and therefore reduced over the years, as the right. This is the only water savings. Time because water makes 12 L water 1 minute standard toilet and kitchen, water and 1 minute take effect, reducing as it produces.
 

Gas water heater at 45 ° c hot water for 1 minute reduction in savings

However, because to use a “hot” rather “water” in the kitchen and bath including shower, boil water to other heat involves. Right, a gas water heater, at 45 ° c hot water for 1 minute is a reduction in annual reduction. (※ Reference the “energy saving large encyclopedia the energy conservation center of the home”)

Sum of the water charges and [$ 3,000] what makes savings. Pretty big effect isn’t either.
  Is an aside, is from the energy necessary for all hot water is often larger reduction on the water heater. For example, has said if heater “eco cute”, such as high-efficiency models, compared to conventional gas or oil water heaters can reduce the running cost is approximately 1 / 6-1 / 4. More than 40% of the water used in the area are used in the kitchen and bath may not work in “saving” as to type of high efficiency water heater goes with shortcuts to saving CO 2 reduction.

[Reference site] Panasonic cute

Organized in the following pages, let’s look at.

You save “power” than “saving” is effective!

So, let’s summarize the content until the page me “economic effects”. Please see the following.

[Power] air conditioning reduce one hour a day
… (1) Reduce air-conditioning for 1 hour Over the years
　Savings in electricity charges [$ 307]
　Saving power consumption [about 13.94 kWh]
　CO 2 emissions [4.63 kg]
… (2) Reduce heating time 1 Over the years
　Savings in electricity charges [$ 889]
　Saving power consumption [about 40.39 kWh]
　CO 2 emissions [13.41 kg]

[Power] reduce the TV one hour a day
(1) LCD TV (37-inch wide type) and one time out… Over the years
　Savings in electricity charges [$ 670]
　Saving power consumption [about 30.24 kWh]
　CO 2 emissions [11.3 kg]
(2) Plasma TV (42-inch wide type) and one time out… Over the years
　Savings in electricity charges [$ 1,007]
　Saving power consumption [about 45.79 kWh]
　CO 2 emissions [15.20 kg]

[Water] and small toilet use
　In water charges [$ 2,321] of savings
　Using water [about 8, 760L（8.76m3 ）] of savings
　CO 2 emissions [3.15 kg]

To reduce shower hours, 1 minute (water) [water]
　Saving water rate [$ 1,161]
　Use of water [380L（4.38m3, about 4 ）] of savings
　CO 2 emissions [1.58 kg]
※ In 45 ° c hot water heater gas 1 minute added to reduce
　Savings in gas charges [$ 2,000]
　Energy saving of gas usage: 12.78 m 3
　CO 2 emissions [29.1 kg]

More now is like,?. 1 Hour and turn off TV and air conditioning, shower, 1 minute to reduce. Person feel and both very different, cannot compare with exactly the same “water”, and “power saving” ring. Still saving effect of the “water” is surprising and big ones, and we realized isn’t or.

But in the meantime, and to focus on CO 2 reduction effect of “power” and “water” is reversed. Is a simple comparison, CO 2 reductions by one yen per is more of “electricity”. Will saving actually contradictory, it said. Given this reality, to perform both saving and CO 2 reduction, tackling better balance both “power” and “water” is wise as well.