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Computing Costs & Savings of

Energy Efficient Appliances

Task Cards

Outcome 7

I can compute the costs and savings of energy efficient

appliances.

I can compute the costs and savings of energy efficient

appliances.

Outcome 7

Edward was looking to save money and make his home more energy efficient. He heard about CFL light bulbs, but wanted to calculate the actual cost per year before buying them. Edward found that Incandescent bulbs cost $0.01 per hour in electricity, while CFL’s cost $0.005 per hour. If the average user has their lights on for 4 hours per day, and has 65 light bulbs in their house, what is the annual savings by switching to CFL light bulbs?

Eleanor was looking to save money and make her home more energy efficient. She heard about LED light bulbs, but wanted to calculate the actual cost per year before buying them. Eleanor found that incandescent bulbs cost $0.01 per hour in electricity, while LED’s cost $0.0022 per hour. If the average home has 65 light bulbs and has their lights on for 4 hours per day, what is the savings for 1 year for Eleanor to switch all of her light bulbs to LED’s?

Evan was looking to save money and make his home more energy efficient. He heard about CFL light bulbs, but wanted to calculate the actual cost per year before buying them. Evan found that incandescent bulbs cost $0.01 per hour in electricity, while CFL’s cost $0.005 per hour. If the average user has their lights on for 4 hours per day, and he has has 53 light bulbs in his house, what is the weekly savings by switching to CFL light bulbs?

Ellie was looking to save money and make her home more energy efficient. She heard about LED light bulbs, but wanted to calculate the actual cost per year before buying them. Ellie found that incandescent bulbs cost $0.01 per hour in electricity, while LED’s cost $0.0022 per hour. If her home has 45 light bulbs and has the lights on for an average of 4 hours per day, what is the savings for 1 week for Ellie to switch all of her light bulbs to LED’s?

Emmanuel was looking to save money and make his home more energy efficient. He heard about CFL light bulbs, but wanted to calculate the actual cost per year before buying them. Emmanuel found that incandescent bulbs cost $0.01 per hour in electricity, while CFL’s cost $0.005 per hour. If the average user has their lights on for 4 hours per day, and he has has 49 light bulbs in his house, what is the weekly savings by switching to CFL light bulbs?

Emily was looking to save money and make her home more energy efficient. She heard about LED light bulbs, but wanted to calculate the actual cost per year before buying them. Emily found that incandescent bulbs cost $0.01 per hour in electricity, while LED’s cost $0.0022 per hour. If her home has 48 light bulbs and has the lights on for an average of 4 hours per day, what is the savings for 1 week for Emily to switch all of her light bulbs to LED’s?

Ezekiel heard about CFL light bulbs, but wanted to calculate the actual cost per year before buying them for his entire house. Ezekiel found that incandescent bulbs cost $0.01 per hour in electricity, while CFL’s cost $0.005 per hour. If the average user has their lights on for 4 hours per day, and he has has 61 light bulbs in his house, what is the annual savings by switching to CFL light bulbs?

Eloise heard about LED light bulbs, but wanted to calculate the actual cost per year before buying them. Eloise did some research & found that incandescent bulbs cost $0.01 per hour in electricity, while LED’s cost $0.0022 per hour. If her home has 63 light bulbs and has the lights on for an average of 4 hours per day, what is the savings for 1 year for Eloise to switch all of her light bulbs to LED’s?

Ezra heard about CFL light bulbs, but wanted to calculate the actual cost per year before buying them for his entire house. Ezra found that incandescent bulbs cost $0.01 per hour in electricity, while CFL’s cost $0.005 per hour. If the average user has their lights on for 4 hours per day, and he has has 57 light bulbs in his house, what is the daily savings by switching to CFL light bulbs?

Emma heard about LED light bulbs, but wanted to calculate the actual cost per year before buying them for her entire house. Emma did some research & found that incandescent bulbs cost $0.01 per hour in electricity, while LED’s cost $0.0022 per hour. If her home has 49 light bulbs and has the lights on for an average of 4 hours per day, what is the savings for 1 day for Emma to switch all of her light bulbs to LED’s?

Edward heard about CFL light bulbs, but wanted to calculate the actual cost per year before buying them for his entire house. Edward found that incandescent bulbs cost $0.01 per hour in electricity, while CFL’s cost $0.005 per hour. If the average user has their lights on for 4 hours per day, and he has has 59 light bulbs in his house, what is the annual savings by switching to CFL light bulbs?

Esther heard about LED light bulbs, but wanted to calculate the actual cost per year before buying them for her entire house. Esther did some research & found that incandescent bulbs cost $0.01 per hour in electricity, while LED’s cost $0.0022 per hour. If her home has 62 light bulbs and has the lights on for an average of 4 hours per day, what is the savings for 1 year for Esther to switch all of her light bulbs to LED’s?

Aliyah was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $1275 for both of them. The cost of the old washer and dryer to run was $1.07 per day. The new washer and dryer are energy efficient and cost $0.37 per day to run. How long will it take for Aliyah to get her money back in savings?

Alisha was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $1650 for both of them. The cost of the old washer and dryer to run was $1.05 per day. The new washer and dryer are energy efficient and cost $0.35 per day to run. How long will it take for Alisha to get her money back in savings?

Alan was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $3500 for both of them. The cost of the old washer and dryer to run was $0.95 per day. The new washer and dryer are energy efficient and cost $0.21 per day to run. How long will it take for Alan to get his money back in savings?

Amanda was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $1750 for both of them. The cost of the old washer and dryer to run was $1.12 per day. The new washer and dryer are energy efficient and cost $0.47 per day to run. How long will it take for Amanda to get her money back in savings?

Aaron was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $2800 for both of them. The cost to run the old washer and dryer was $1.05 per day. The new washer and dryer are energy efficient and cost $0.29 per day to run. How long will it take for Aaron to get his money back in savings?

Allie was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $2000 for both of them. The cost to run the old washer and dryer was $1.27 per day. The new washer and dryer are energy efficient and cost $0.19 per day to run. How long will it take for Allie to get her money back in savings?

Adam was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $2735 for both of them. The cost to run the old washer and dryer was $1.14 per day. The new washer and dryer are energy efficient and cost $0.31 per day to run. How long will it take for Adam to get his money back in savings?

Allison was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $1700 for both of them. The cost to run the old washer and dryer was $1.31 per day. The new washer and dryer are energy efficient and cost $0.24 per day to run. How long will it take for Allison to get her money back in savings?

Abe was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $1700 for both of them. The cost to run the old washer and dryer was $1.09 per day. The new washer and dryer are energy efficient and cost $0.17 per day to run. How long will it take for Abe to get his money back in savings?

Arya was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $1950 for both of them. The cost to run the old washer and dryer was $1.26 per day. The new washer and dryer are energy efficient and cost $0.23 per day to run. How long will it take for Arya to get her money back in savings?

Aidan was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $2195 for both of them. The cost to run the old washer and dryer was $1.19 per day. The new washer and dryer are energy efficient and cost $0.27 per day to run. How long will it take for Aidan to get his money back in savings?

Alexis was in the market for a new washer and dryer. The old ones still worked, but not efficiently. The new washer and dryer cost $2350 for both of them. The cost to run the old washer and dryer was $1.32 per day. The new washer and dryer are energy efficient and cost $0.18 per day to run. How long will it take for Alexis to get her money back in savings?

The following table shows Lawrence’s monthly electric bills for the past year. If Lawrence’s electric company offered a budget bill (average) option, how much would he have to pay each month?

The following table shows Nora’s monthly electric bills for the past year. If Nora’s electric company offered a budget bill (average) option, how much would she have to pay each month?

Jan Feb March April May June July Aug Sept Oct Nov Dec

$80 $70 $125 $165 $172 $140 $154 $125 $104 $79 $85 $95

Jan Feb March April May June July Aug Sept Oct Nov Dec $280 $270 $245 $196 $172 $146 $154 $152 $164 $179 $204 $248

The following table shows Mark’s monthly electric bills for the past year. If Mark’s electric company offered a budget bill (average) option, how much would he have to pay each month?

The following table shows Lori’s monthly electric bills for the past year. If Lori’s electric company offered a budget bill (average) option, how much would she have to pay each month?

Jan Feb March April May June July Aug Sept Oct Nov Dec

$60 $68 $95 $145 $153 $160 $135 $125 $109 $90 $70 $65

Jan Feb March April May June July Aug Sept Oct Nov Dec $240 $210 $195 $175 $150 $146 $153 $164 $168 $185 $234 $278

The following table shows Damon’s monthly electric bills for the past year. If Damon’s electric company offered a budget bill (average) option, how much would he have to pay each month?

The following table shows Barbara’s monthly electric bills for the past year. If Barbara’s electric company offered a budget bill (average) option, how much would she have to pay each month?

Jan Feb March April May June July Aug Sept Oct Nov Dec

$57 $73 $92 $345 $150 $168 $132 $129 $129 $90 $74 $62

Jan Feb March April May June July Aug Sept Oct Nov Dec $272 $225 $185 $170 $165 $140 $153 $174 $188 $180 $243 $270

Mark was in the market for A/C. A new central air unit costs $2750 for his size house. The other option is using window units. A window unit costs $225. If each window unit cools one room, and Mark has 7 rooms, how much will he save going with window units?

Cheyanne was in the market for A/C. A new central air unit costs $3750 for her size house. The other option is using window units. A window unit costs $249. If each window unit cools one room, and Cheyanne has 8 rooms, how much will she save going with window units?

Keagan was in the market for A/C. A new central air unit costs $3200 for his size house. The other option is using window units. A window unit costs $195. If each window unit cools one room, and Keagan has 8 rooms, how much will he save going with window units?

Mayah was in the market for A/C. A new central air unit costs $2750 for her size house. The other option is using window units. A window unit costs $175. If each window unit cools one room, and Mayah has 6 rooms, how much will she save going with window units?

Preston was in the market for A/C. A new central air unit costs $2700 for his size house. The other option is using window units. A window unit costs $185. If each window unit cools one room, and Preston has 8 rooms, how much will he save going with window units?

Darby was in the market for A/C. A new central air unit costs $1995 for her size house. The other option is using window units. A window unit costs $205. If each window unit cools one room, and Darby has 7 rooms, how much will she save going with window units?

Everett was in the market for A/C. A new central air unit costs $3100 for his size house. The other option is using window units. A window unit costs $195. If each window unit cools one room, and Everett has 9 rooms, how much will he save going with window units?

Evie was in the market for A/C. A new central air unit costs $3600 for her size house. The other option is using window units. A window unit costs $205. If each window unit cools one room, and Evie has 9 rooms, how much will she save going with window units?

Landon was in the market for A/C. A new central air unit costs $3050 for his size house. The other option is using window units. A window unit costs $180. If each window unit cools one room, and Landon has 10 rooms, how much will he save going with window units?

Madison was in the market for A/C. A new central air unit costs $2900 for her size house. The other option is using window units. A window unit costs $190. If each window unit cools one room, and Madison has 7 rooms, how much will she save going with window units?

Outcome 7 Name: ___________________

1. 2. 3. 4.

5. 6. 7. 8.

9. 10. 11. 12.

13. 14. 15. 16.

17. 18. 19. 20.

Outcome 7 Name: ___________________

21. 22. 23. 24.

25. 26. 27. 28.

29. 30. 31. 32.

33. 34. 35. 36.

37. 38. 39. 40.