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Electrical Energy Conservation Scheme at Home Merra Grace Almeria Sittie Ailah Andig Rodna Jeliane Closas Sherifa Rossmia Kadil Clent Mark Gaitera Keren.

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Presentation on theme: "Electrical Energy Conservation Scheme at Home Merra Grace Almeria Sittie Ailah Andig Rodna Jeliane Closas Sherifa Rossmia Kadil Clent Mark Gaitera Keren."— Presentation transcript:

1 Electrical Energy Conservation Scheme at Home Merra Grace Almeria Sittie Ailah Andig Rodna Jeliane Closas Sherifa Rossmia Kadil Clent Mark Gaitera Keren Jollia M. Nuñeza

2 Why should we reduce our electricity? Global warming Electric Pollution Increasing prices cause a heightened sensitivity to price and problems for some household budgets.

3 Statement of the problem: 1.What are the commonly used electrical gadgets/appliances in the household? 2.Is the introduced scheme effective in reducing electric consumption? 3.What is the prevailing electricity consumption in kilowatt-hour among the households?

4 METHODOLOGY Permission was asked from the 6 households to conduct the research Formulation of a survey questionnaire and giving it to the households Collection of Baseline Data (meter-reading) Formulation of the Scheme Verbal communication of the scheme to the households Data Collection with the Scheme (meter reading) Analysis of Data

5 Table 1. Scheme in Reducing the Consumption of Electricity CATEGORIESUPPER-CLASSMIDDLE-CLASSLOWER-CLASS Lighting Turn off when not in use Open the windows/curtains to allow natural light to come in. Turn off when not in use Open the windows/curtains to allow natural light to come in. Turn off when not in use Open the windows/curtains to allow natural light to come in. Entertainment Do not use two appliances t the same time ( laptop & TV) Unplug when not in use Turn off the router when not in use. Unplug when not in use. Unplug when not in use

6 CATEGORIESUPPER-CLASSMIDDLE-CLASSLOWER-CLASS Comfort (electric fan, air- conditioning and others) Unplug when not in use. Plant more trees around the house Have a scheduled usage. Unplug when not in use. Plant more trees around the house Have a scheduled usage. Unplug when not in use. Plant more trees around the house Have a scheduled usage. Kitchen Do not use electric stove Refrain from the constant opening of the refrigerator. Cook rice twice a day Use microwave instead of oven and minimize use. When the food starts to boil, put stove to low fire. Cook rice twice a day (in the morning- lasting until noon - and in the evening). When the food starts to boil, put stove to low fire. Cook rice twice a day (in the morning- lasting until noon - and in the evening). When the food starts to boil, put stove to low fire.

7 CATEGORIESUPPER-CLASSMIDDLE-CLASSLOWER-CLASS Others (washing machine, iron) Iron clothes in one sitting Maximize the number of clothes in one load (washing machine) Iron clothes in one sitting Wash and fold from the clothesline to minimize ironing Iron clothes in one sitting Wash and fold from the clothesline to minimize ironing

8 The set of guidelines on Table 1 was formulated based on the commonly-used appliances in the households and those that need large amounts of electricity (i.e., water pump). The guidelines were also based on pre-existing knowledge of common household energy conservation methods.

9 However, after careful scrutiny, the six households were found to be of middle-class category so the scheme meant for the upper and lower-classes were not tested. To solve this discrepancy, a new scheme (table 2) was formulated.

10 Table 2. Revised Scheme in Reducing the Consumption of Electricity CATEGORIESGUIDELINES Lighting Turn off lights when not in use Open the windows/curtains to allow natural light to come in. If possible use Compactt flourescent lamps (CFL) or LED lamps to replace incandescent and/or flourescent lamps. Entertainment/Communication Do not use two appliances at the same time (laptop & TV). Reduce simultaneous use of several TVs. Unplug all appliances when not in use. Turn off router when not in use. Unplug cell phones as soon as charging is completed.

11 Table 2. Revised Scheme in Reducing the Consumption of Electricity CATEGORIESGUIDELINES Electric Fan/ Aircon Unplug all appliances when not in use. When using electric fan, open the windows and minimize use of heavy curtains to allow more air inside. Have a scheduled usage of air- conditioning unit, put off aircon when not in use. Plant more trees around the house to have cooler air. Iron Iron clothes in one sitting. If possible, wash and fold clothes which do not need ironing. Washing Machine Maximize the number of clothes in one load. Water Pump Have a scheduled usage.

12 Table 2. Revised Scheme in Reducing the Consumption of Electricity CATEGORIESGUIDELINES Kitchen Do not use electric stove, if possible, as this entails more power consumption. Refrain from constant opening of the refrigerator. If using rice cooker, cook rice twice a day (in the morning -lasting until noon- and in the evening) Minimize use of microwave and electric oven. When the food is boiling, put it to low fire.

13 Testing the Scheme The scheme was tested by collecting meter readings everyday for an additional one week while the same households followed the scheme. Start dates were not simultaneous, what was important was that all the households have completed the one-week prescribed period of meter reading.

14 ANALYSIS OF DATA Table 3. Table showing the kind and quantity of gadgets/ appliances used and usage in terms of number of hours/day. APPLIANCESQUANTITYNUMBER OF HOURS/DAY Refrigerator724/7 Aircon810 Laptop/Computer127 Electric Fan1724/7 Water Dispenser53 Microwave22/week Light Bulb10024/7 Washing Machine34/week Exhaust Fan11/week Rice cooker62 Electric Stove23 Radio34

15 Table 3. Table showing the kind and quantity of gadgets/ appliances used and usage in terms of number of hours/day. APPLIANCESQUANTITYNUMBER OF HOURS/DAY Power saver224/7 Electric Keyboard13 Flat Iron51/week Iron (hair)34/week TV410

16 Analysis of Data Survey results (table 3) indicate that light bulbs, electric fans, laptops/computers, air-conditioning units, and refrigerators are the top five most common features in the household that require electricity. In terms of use, light bulbs, refrigerators and electric fans top the list.

17 Table 4. Energy Consumption in kilowatt-hours (kWh) of the Six Households for Seven Days Without the Scheme Household DAYABCDEF 14174162844.7 23790141 4.8 3358121284.3 44322 4575.2 5356 264.9 63226211566.4 736130182145.8

18 Table 4 shows that electricity consumption in kilowatt-hours (kWh) ranged from 32-41 kWh in household A, 6-130kWh in household B, 16-35 kWh in household C, 1-2 kWh in household D, 6-84kWh in household E, and 4.3-6.4 in household F.

19 The much higher consumption in household B suggests that this household has many appliances or many users of appliances but day 5 has a consumption of only 6 kWh which also suggests that during this day the members of the household could be on holiday out of town considering the sudden drop of consumption.

20 Electricity consumption of household D is considerably lower compared to the other households. This could mean that this household has very few appliances or is very conscious of energy conservation even without this study. The four other households have a rise and fall in terms of kWh used..

21 Table 5. Energy Consumption in kilowatt-hours (kWh) of the Six Households for Seven Days With the Energy Conservation Scheme Household DAYABCDEF 1 365931294.6 2 341815153.2 3 323014252.4 4 383717234.3 5 332217264.0 6 3540172632.5 7 3463152103.4

22 Table 5 shows that household A has more or less maintained its kWh used in the range of 33-38 while household B from a high kWh usage on day 1 dropped to lower usage on subsequent days although it went up on day 7. The same is true for household E, which has unusually high consumption on day 6. Households C,D, and F seem to be conscious with energy conservation that kWh are low.

23 Figure 1. Graph showing the Comparison of Data of the six Households with and without the scheme

24 All households have marked reduction in consumption of electricity following the guidelines in the scheme. Results suggest that it doesn’t matter if the cooperating household is low income or high income or household with many or few appliances. What is apparent is that the scheme is effective in reducing consumption of electricity.

25 The data were subjected to a t-test to determine whether the differences in the electricity usage before and after the scheme are significantly different. Households A and F were found to have significant results at 0.5 level of significance.

26 APPENDIX B. t-Test on paired two sample for means (with and without the scheme). t-Test: Paired Two Sample for Means withoutwith Mean3734.57143 Variance14.333333.952381 Observations77 Hypothesized Mean Difference 0 df6 t Stat2.380476 P(T<=t) one-tail0.027366 t Critical one-tail1.94318 P(T<=t) two-tail0.054733 t Critical two-tail2.446912

27 Household A At p<0.05, there is significant difference in the household consumption between without and with

28 Household B t-Test: Paired Two Sample for Means withoutwith Mean61.2857138.42857 Variance1990.238298.2857 Observations77 Hypothesized Mean Difference 0 df6 t Stat1.518288 P(T<=t) one-tail0.089871 t Critical one-tail1.94318 P(T<=t) two-tail0.179742 t Critical two-tail2.446912

29 At p>0.05, there is not significant differences in the household consumption between without and with

30 Household C t-Test: Paired Two Sample for Means withoutwith Mean2118 Variance46.6666734.33333 Observations77 Hypothesized Mean Difference 0 df6 t Stat0.803151 P(T<=t) one-tail0.226261 t Critical one-tail1.94318 P(T<=t) two-tail0.452521 t Critical two-tail2.446912

31 At p>0.05, there is no significant difference in the household consumption between without and with

32 Household D t-Test: Paired Two Sample for Means withoutwith Mean21.857143 Variance10.142857 Observations77 df6 t Stat0.420084 P(T<=t) one-tail0.344526 t Critical one-tail1.94318 P(T<=t) two-tail0.689052 t Critical two-tail2.446912

33 At p>0.05, there is no significant difference in the household consumption between without and with

34 Household E t-Test: Paired Two Sample for Means withoutwith Mean34.1428614.42857 Variance962.1429464.619 Observations77 df6 t Stat1.652803 P(T<=t) one-tail0.074729 t Critical one-tail1.94318 P(T<=t) two-tail0.149458 t Critical two-tail2.446912

35 At p>0.05, there is no significant difference in the household consumption between without and with

36 Household F t-Test: Paired Two Sample for Means withoutwith Mean5.1571433.485714 Variance0.516190.734762 Observations77 df6 t Stat3.568467 P(T<=t) one-tail0.005903 t Critical one-tail1.94318 P(T<=t) two-tail0.011806 t Critical two-tail2.446912

37 At p<0.05, there is significant difference in the household consumption between without and with

38 Conclusion and Recommendation Over the 2-week observation period, there was notable decrease in the electric consumption of the selected households and significant decrease in two households. Results indicated that households can lower their electricity usage if they follow the scheme and are conscious in making the scheme work.

39 Recommendation Since the baseline data was taken only for one week and the intervention period was also for one week, it is recommended to have a longer period of study covering more number of households in order to come up with more conclusive results.


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