1-1 a 62 million tons per year 0.05 3.1 million tons per year of reduced greenhouse gas

1-1 (a) 62 million tons per year × (0.05) = 3.1 million tons per year of reduced greenhouse gas $1.2 billion ÷ 3.1 million tons per year = $387.10 per ton (b)3 billion tons per year × (0.03) = 90 million tons per year of reduced greenhouse gas $1.2 billion 3.1 million tons = $X billion 90 million tons X = $34.84 billion (Engineering Economy, 17e William Sullivan, Elin Wicks, Patrick Koelling) (Solution Manual, For Complete File, Download link at the end of this File) Chapter 1 1 / 3

1-2 The primary disadvantage is the installed cost of $8,000 (rather expensive!). A key advantage of synthetic turf is the annual savings due to lawn maintenance. This may be worth up to $1,000 per year when periodic lawn mowing, watering, and feeding are avoided.

See what other monetized advantages and disadvantages members of your class can identify. Be creative! 2 / 3

1-3 Cost per Watt-hour = $0.75/1.5 Watt-hours = $0.50 per Watt-hour

At a cost of $0.50 per Watt-hour, it would cost (1,000)($0.50 per Watt-hour) = $500 per kilo Watt-hour for power from a single AAA battery. This is 5,000 times more costly than energy from your local utility. No wonder we turn off our battery operated devices when we're not using them!

• / 3