... 10 % 10 % 10 %initial cost ($/yr) 10 ,000 15 ,000 20,000 25,000Emission reduction 900 T 12 00 T 12 00 T 15 00 T($) 31, 500 42,000 42,000 52,500Product saved ($/yr) 0 6000 8000 21, 000ROI =×= 16 500 10 0 ... 000 10 0 46 0,,.%ROI =×= 15 000200 000 10 0 7 5,,.%ROI =×=38 500250 000 10 0 15 4,,.%IROI =×=38 500 10 0 000 10 0 38 5,,.% 9588ch09 frame Page 10 4 Wednesday, September 5, 20 01 9:50 ... 10 ,000 – 15 ,000 = $23,000 This ROI is acceptable. DESIGN A B C D Installed cost ($) 10 0,000 15 0,000 200,000 250,000Operating cost ($) 5000 10 ,000 15 ,000 10 ,000Fixed charges % of 10 % 10 %...