3. If the cost of one of the CFL bulbs is $2.00, and that for an equivalent incandescent bulb is $1.00, how many years will it take to recover the additional expense? (Remember, the CFL has greater energy efficiency and a longer lifetime.) When making your calculations, consider the bulb costs to be fixed (over the years involved) and use any other information needed from your data. 4. How many dollars will a single CFL bulb (from question \#3) save over its lifetime compared with the set of incandescent bulbs needed? Be sure to include both fixed costs and operational costs 1. Data and Results 1. The claim on the CFL package says that you can save if you switch from a 60W incandescent light ( 1000h life) to a 13W CFL bulb ( 10000h life) at an energy cost of 12.0 cents /kWh. Considering that the actual cost is 13.4 cents /kWh, does the claim underestimate or overestimate your savings? - 60W (1000 h life) - 13W for (10000 h life) - Energy Cost =12.0 cents /kWh - Actual Cost =13.4 cents /kWh 60W10,000/1,000=600kWh600kWh12.0cents/kWh=7200/100=$72600kWh$13.4cents/kWh=$80.4013W10,000/1,000=130kWh130kWh12.0cents/kWh=1560/100=$15.60130kWh$13.4cents/kWh=1742/100=$17.42 Savings: $72$15.6=$56.4$80.4$17.42=$62.98 The claim appears to underestimate the savings considering the actual cost is only more. 3. If the cost of one of the CFL bulbs is $2.00, and that for an equivalent incandescent bulb is $1.00, how many years will it take to recover the additional expense? (Remember, the CFL has greater energy efficiency and a longer lifetime.) When making your calculations, consider the bulb costs to be fixed (over the years involved) and use any other information needed from your data. 4. How many dollars will a single CFL bulb (from question \#3) save over its lifetime compared with the set of incandescent bulbs needed? Be sure to include both fixed costs and operational costs 1. Data and Results 1. The claim on the CFL package says that you can save if you switch from a 60W incandescent light ( 1000h life) to a 13W CFL bulb ( 10000h life) at an energy cost of 12.0 cents /kWh. Considering that the actual cost is 13.4 cents /kWh, does the claim underestimate or overestimate your savings? - 60W (1000 h life) - 13W for (10000 h life) - Energy Cost =12.0 cents /kWh - Actual Cost =13.4 cents /kWh 60W10,000/1,000=600kWh600kWh12.0cents/kWh=7200/100=$72600kWh$13.4cents/kWh=$80.4013W10,000/1,000=130kWh130kWh12.0cents/kWh=1560/100=$15.60130kWh$13.4cents/kWh=1742/100=$17.42 Savings: $72$15.6=$56.4$80.4$17.42=$62.98 The claim appears to underestimate the savings considering the actual cost is only more