An energy efficiency project is expected to save 10,000 kWh annually and 2 kW of demand. The cost of electricity is $0.10/kWh and $7/kW-month of demand. The energy efficiency project is expected to cost $5000 to implement and will last for 15 years. What is the simple payback of the project?

What is the net present value of project at a 10% discount rate - see chart below.

Time Value of Money FacturaDisuete Compounding % i : 25% Single Sums Uniform Series Gradient Series To Find F To Find P To Find F To Find A To Find P To Find A To Find P To Find A Given P Given F Given A Given F Given A Given P Given G Given G n (F | Ei%,n) (P | F,i%,n) (F | A,i%,n) (A1 F,i%,n) (P I A,i%,n) (A1 P,i%,n) (P | G,i%,n) (A | G,i%,n) 1 1.2500 0.3000 1.0000 1.0000 0.3000 1.2500 0.0000 0.0000 2 1.5625 0.6400 2.2500 0.4444 1.4400 0.6944 0.6400 0.4444 3 1.9531 0.5120 3.3125 0.2623 1.9520 0.5123 1.6640 0.3525 4 2.4414 0.4096 5.7656 0.1734 2.3616 0.4234 2.3923 1.2249 5 3.0513 0.3277 3.2070 0.1218 2.6893 0.3718 4.2035 1.5631 6 3.3147 0.2621 11.2533 0.0333 2.9514 III-3338 5.5142 1.3633 7 4.7634 0.2097 15.0735 0.0663 3.1611 0.3163 6.7725 2.1424 3 5.9605 0.1673 19.3419 0.0504 3.3239 0.3004 7.9469 2.3372 9 7.4506 0.1342 25.3023 0.0338 3.4631 0.2838 9.0207 2.6048 10 9.3132 0.1074 33.2529 0.0301 3.5705 0.2301 9.9870 2.7971 11 11.6415 0.0359 42.5661 0.0235 3.6564 0.2735 10.3460 2.9663 12 14.5519 0.0637 54.2077 0.0134 3.7251 0.2634 11.6020 3.1145 13 13.1399 0.0550 63.7596 0.0145 3.7301 0.2645 12.2617 3.2437 14 22.7374 0.0440 86.9495 0.0115 3.3241 0.2615 12.3334 3.3559 15 23.4217 0.0352 109.6363 0.0091 3.3593 0.2591 13.3260 3.4530 16 35.5271 0.0231 133.1035 0.0072 3.3374 0.2572 13.7432 3.5366 17 44.4039 0.0225 173.6357 5.759303 3.9099 0.2558 14.1035 3.6034 13 55.5112 0.0130 213.0446 4.586303 3.9279 0.2546 14.4147 3.6698 19 69.3339 0.0144 273.5553 3.656303 3.9424 0.2537 14.6741 3.7222 20 86.7362 0.0115 342.9447 2.916303 3.9539 0.2529 14.3932 3.7667 21 108.4202 0.0092 429.6809 2.327303 3.9631 0.2523 15.0777 3.3045 22 135.5253 0.0074 538.1011 1.858303 3.9705 0.2519 15.2326 3.3365 23 169.4066 0.0059 673.6264 1.485303 3.9764 0.2515 15.3625 3.3634 24 211.7532 0.0047 843.0329 1.186303 3.9811 0.2512 15.4711 3.3861 25 264.6973 0.0033 1054.7912 9.481304 3.9349 0.2509 15.5613 3.9052 26 330.372 3.022303 1319.4390 7.579304 3.9379 0.2503 15.6373 3.9212 27 413.5903 2.418303 1650.3612 6.059304 3.9903 0.2506 15.7002 3.9346 23 516.9379 1.934303 2063.9515 4.345304 3.9923 0.2505 15.7524 3.9457 29 646.2349 1.547303 2580.9394 3.875304 3.9933 0.2504 15.7957 3.9551 30 307.7936 1.238303 3227E+03 3.099304 3.9950 0.2503 15.3316 3.9623 36 3081.4379 3.245304 1232E+04 8.116305 3.9937 0.2501 15.9431 3.9333 42 1.175E+04 8.507305 4.702E+04 2.127305 3.9997 0.2500 15.9843 3.9964 43 4.484E+04 2.230305 1.794E+05 5.575306 3.9999 0.2500 15.9954 3.9939 54 1.711E+05 5.846306 6.342E+05 1.462306 4.0000 0.2500 15.9936 3.9997 60 6.525E+05 1.532306 2.610E+06 3.831307 4.0000 0.2500 15.9996 3.9999 66 2.489E+06 4 017307 9.957'E+06 1.004307 4.0000 0.2500 15.9999 4.0000 72 9.496E+06 1.053307 3.793E+07 2.633308 4.0000 0.2500 13.0000 4.0000 120 4258E+11 2.349312 1.703E+12 5.871313 4.0000 0.2500 16.0000 4.0000 130 2.773E+17 3.599318 1.]11E+l8 8.998319 4.0000 0.2500 13.0000 4.0000 330 7.720E+34 1.295335 3.083E+35 3.238338 4.0000 0.2500 16.0000 4.0000