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|
Electrical Savings |
|
|
First Cost |
|
Source |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
2024 |
2025 |
2026 |
2027 |
2028 |
2029 |
2030 |
|
|
System & Equipment |
Quantity |
Unit
Price |
Cost ($) |
Source |
|
Electricity (cents/kWh) |
8.33 |
8.24 |
8.11 |
7.92 |
7.82 |
7.77 |
7.73 |
7.73 |
7.78 |
7.87 |
7.93 |
7.91 |
7.94 |
7.96 |
7.96 |
7.99 |
8.03 |
8.05 |
8.03 |
8.03 |
8.05 |
8.09 |
8.09 |
|
|
CHP |
|
|
Natural Gas ($/MMBTU) |
8.92 |
8.37 |
8.07 |
7.67 |
7.51 |
7.31 |
7.33 |
7.28 |
7.37 |
7.57 |
7.51 |
7.46 |
7.54 |
7.53 |
7.66 |
7.80 |
7.92 |
7.91 |
7.96 |
8.06 |
8.18 |
8.27 |
8.33 |
|
|
Centaur 40 Generator Set |
3500 |
1200 |
4200000 |
Solar |
|
Electricity ($/MMBTU) |
24.41 |
24.14 |
23.78 |
23.20 |
22.92 |
22.78 |
22.65 |
22.65 |
22.80 |
23.06 |
23.24 |
23.19 |
23.26 |
23.32 |
23.34 |
23.41 |
23.53 |
23.58 |
23.54 |
23.54 |
23.59 |
23.70 |
23.70 |
|
|
Steam Fired Water Heater |
1 |
15000 |
15000 |
Cemline |
|
Spark Gap |
15.49 |
15.77 |
15.71 |
15.53 |
15.41 |
15.47 |
15.33 |
15.38 |
15.43 |
15.49 |
15.73 |
15.73 |
15.72 |
15.79 |
15.67 |
15.61 |
15.61 |
15.67 |
15.57 |
15.48 |
15.41 |
15.43 |
15.37 |
|
Building |
Cooling Approx. (Tons) |
$/Ton |
$/yr |
$/22 yr |
|
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
2024 |
2025 |
2026 |
2027 |
2028 |
2029 |
2030 |
|
|
Unfired Absorption Chiller |
2 |
150000 |
300000 |
York |
|
CHP Energy Cost |
938205 |
880202 |
848420 |
806311 |
789405 |
768174 |
770590 |
765083 |
774598 |
795715 |
789504 |
784652 |
792878 |
791393 |
805489 |
819869 |
833134 |
831725 |
837245 |
847086 |
859764 |
869402 |
875656 |
|
Existing SeaLab System |
300 |
28 |
8400 |
184800 |
|
Energy Savings |
835419.551 |
873984.992 |
879097.299 |
879529.015 |
875537.788 |
886716.118 |
875424.748 |
880896.949 |
881721.35 |
879733.356 |
899102.2 |
900488.95 |
897069.873 |
902940.3477 |
889970.322 |
881049.39 |
876369.083 |
881484.332 |
872909.447 |
862953.838 |
853854.484 |
852305.9641 |
846441.9833 |
20165001.38 |
|
Cooling Tower |
2 |
16703.75 |
33408 |
Marley |
|
Existing System Energy Cost |
801689 |
792903 |
780848 |
762010 |
752564 |
748020 |
744008 |
743993 |
748666 |
757313 |
763260 |
761694 |
763866 |
765849 |
766358 |
768825 |
772706 |
774381 |
773000 |
772948 |
774566 |
778222 |
778398 |
|
Watermen's Hall |
117.6291667 |
28 |
3293.617 |
72459.567 |
|
Total Annual Maintenance Cost |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
292743.73 |
|
|
Condenser Water Loop Pumps |
2 |
6500 |
13000 |
B & G |
|
Watermen's Hall Energy Cost |
142869 |
141304 |
139155 |
135798 |
134115 |
133305 |
132590 |
132587 |
133420 |
134961 |
136021 |
135742 |
136129 |
136482 |
136573 |
137013 |
137704 |
138003 |
137757 |
137748 |
138036 |
138687 |
138719 |
|
Nunnally Hall |
71.632 |
28 |
2005.696 |
44125.312 |
|
Net Annual Savings |
542675.82 |
581241.26 |
586353.56 |
586785.28 |
582794.05 |
593972.38 |
582681.01 |
588153.21 |
588977.62 |
586989.62 |
606358.46 |
607745.22 |
604326.14 |
610196.61 |
597226.59 |
588305.66 |
583625.35 |
588740.60 |
580165.71 |
570210.10 |
561110.75 |
559562.23 |
553698.25 |
13431895.50 |
|
Hot Water Pumps |
2 |
5300 |
10600 |
B & G |
|
Nunnally Hall Energy Cost |
158598 |
156860 |
154475 |
150748 |
148880 |
147981 |
147187 |
147184 |
148109 |
149819 |
150996 |
150686 |
151116 |
151508 |
151609 |
152097 |
152864 |
153196 |
152923 |
152912 |
153232 |
153956 |
153991 |
|
Wetlands Facility |
5.53 |
28 |
154.84 |
3406.48 |
|
Life Savings At Year End |
542675.817 |
1123917.08 |
1710270.64 |
2297055.92 |
2879849.98 |
3473822.36 |
4056503.37 |
4644656.59 |
5233634.20 |
5820623.83 |
6426982.29 |
7034727.51 |
7639053.65 |
8249250.26 |
8846476.85 |
9434782.51 |
10018407.86 |
10607148.45 |
11187314.17 |
11757524.27 |
12318635.02 |
12878197.25 |
13431895.50 |
|
|
Chilled Water Pumps |
2 |
5300 |
10600 |
B & G |
|
Wetlands Facility Energy Cost |
6717 |
6643 |
6542 |
6384 |
6305 |
6267 |
6233 |
6233 |
6272 |
6345 |
6395 |
6382 |
6400 |
6416 |
6421 |
6441 |
6474 |
6488 |
6476 |
6476 |
6489 |
6520 |
6521 |
|
Chesapeake Bay Hall |
256.4 |
28 |
7179.2 |
157942.4 |
|
New Mechanical Cost ($) |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
6020920 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Condenser Water Piping |
200 |
114 |
22800 |
Means |
|
Chesapeake Bay Hall Energy Cost |
567687 |
561466 |
552930 |
539590 |
532901 |
529684 |
526843 |
526832 |
530141 |
536264 |
540475 |
539366 |
540904 |
542308 |
542669 |
544416 |
547164 |
548350 |
547372 |
547335 |
548481 |
551070 |
551195 |
|
Geddings House Energy |
4.533333333 |
28 |
126.9333 |
2792.5333 |
|
Total Net Life Savings |
-5478243.68 |
-4897002.42 |
-4310648.86 |
-3723863.58 |
-3141069.52 |
-2547097.14 |
-1964416.13 |
-1376262.91 |
-787285.30 |
-200295.67 |
406062.79 |
7440790.30 |
8045116.44 |
8655313.05 |
9252539.64 |
9840845.30 |
10424470.65 |
11013211.24 |
11593376.96 |
12163587.06 |
12724697.81 |
13284260.04 |
13837958.29 |
|
|
Total |
4582608 |
|
Geddings House Energy Cost |
5139 |
5083 |
5005 |
4885 |
4824 |
4795 |
4769 |
4769 |
4799 |
4855 |
4893 |
4883 |
4897 |
4909 |
4913 |
4928 |
4953 |
4964 |
4955 |
4955 |
4965 |
4989 |
4990 |
|
Wilson House (CBNERR) |
16.072 |
28 |
450.016 |
9900.352 |
|
|
Existing System |
|
Wilson House (CBNERR) Energy Cost |
35585 |
35195 |
34659 |
33823 |
33404 |
33202 |
33024 |
33024 |
33231 |
33615 |
33879 |
33809 |
33906 |
33994 |
34016 |
34126 |
34298 |
34372 |
34311 |
34309 |
34381 |
34543 |
34551 |
|
DCOP Facility |
5.46 |
28 |
152.88 |
3363.36 |
|
|
Centrifugal Chillers |
2 |
58311.5 |
116623 |
Clark Nexsen |
|
DCOP Facility Energy Cost |
6632 |
6559 |
6459 |
6303 |
6225 |
6188 |
6154 |
6154 |
6193 |
6264 |
6314 |
6301 |
6319 |
6335 |
6339 |
6360 |
6392 |
6406 |
6394 |
6394 |
6407 |
6437 |
6439 |
|
CBNERRVA Annex |
22 |
28 |
616 |
13552 |
|
|
Chilled Water Pumps |
2 |
2793.5 |
5587 |
Clark Nexsen |
|
CBNERRVA AnnexEnergy Cost |
48710 |
48176 |
47443 |
46299 |
45725 |
45449 |
45205 |
45204 |
45488 |
46013 |
46375 |
46279 |
46411 |
46532 |
46563 |
46713 |
46949 |
47050 |
46966 |
46963 |
47062 |
47284 |
47294 |
|
Total Existing
Cost |
22379.18 |
492342 |
|
|
Boilers |
2 |
27980 |
55960 |
Clark Nexsen |
|
Total Existing Cost |
1773625 |
1754187 |
1727518 |
1685840 |
1664943 |
1654890 |
1646015 |
1645980 |
1656320 |
1675448 |
1688606 |
1685141 |
1689947 |
1694333 |
1695460 |
1700919 |
1709503 |
1713209 |
1710155 |
1710040 |
1713619 |
1721708 |
1722098 |
|
New SeaLab System |
344 |
22 |
7568 |
166496 |
|
2018 |
2030 |
|
|
Hot Water Heater |
1 |
14362 |
14362 |
Clark Nexsen |
|
Savings |
835420 |
873985 |
879097 |
879529 |
875538 |
886716 |
875425 |
880897 |
881721 |
879733 |
899102 |
900489 |
897070 |
902940 |
889970 |
881049 |
876369 |
881484 |
872909 |
862954 |
853854 |
852306 |
846442 |
|
Watermen's Hall |
117.6291667 |
28 |
3293.617 |
72459.567 |
|
Energy Savings |
899102.199 |
846441.983 |
|
|
FCU |
3 |
15554 |
46662 |
Clark Nexsen |
|
22 Year Energy Savings |
20165001 |
|
Nunnally Hall |
71.632 |
28 |
2005.696 |
44125.312 |
|
Total Annual Maintenance Cost |
292743.734 |
292743.734 |
|
|
ACU |
1 |
4238 |
4238 |
Clark Nexsen |
|
% Cost Savings |
0.471024 |
0.49823 |
0.50888 |
0.52172 |
0.52587 |
0.53582 |
0.53184 |
0.53518 |
0.53234 |
0.52507 |
0.53245 |
0.53437 |
0.53083 |
0.53292 |
0.52491 |
0.51798 |
0.51265 |
0.51452 |
0.51043 |
0.50464 |
0.49828 |
0.49504 |
0.49152 |
|
Wetlands Facility |
5.53 |
28 |
154.84 |
3406.48 |
|
Net Annual Savings |
606358.465 |
553698.249 |
|
|
Total |
243432 |
|
Chesapeake Bay Hall |
256.4 |
28 |
7179.2 |
157942.4 |
|
Life Savings At Year End |
6426982.29 |
13431895.5 |
|
|
Geddings House Energy |
4.533333333 |
28 |
126.9333 |
2792.5333 |
|
New Mechanical Cost ($) |
6020919.5 |
6020919.5 |
|
|
Wilson House (CBNERR) |
16.072 |
28 |
450.016 |
9900.352 |
|
Total Net Life Savings |
406062.791 |
7410976 |
|
|
DCOP Facility |
5.46 |
28 |
152.88 |
3363.36 |
|
|
|
|
CBNERRVA Annex |
22 |
28 |
616 |
13552 |
|
|
Total New Cost |
21547.18 |
474038 |
|
|
First Cost Comparison |
|
Maintenance Cost Decrease |
832 |
18304 |
|
|
Existing Mechanical Cost ($) |
1681744 |
|
|
|
|
Cost of Replaced Equipment ($) |
243432 |
|
|
Cost of New Equipment ($) |
4582608 |
|
Approx kWh |
$/kwh |
$/yr |
$/22 yr |
|
|
New Mechanical Cost ($) |
6020920 |
|
Centaur 40 Generator Set |
30817790 |
0.0088 |
271196.55 |
5966324.14 |
|
|
First Cost Increase ($) |
4339176 |
|
|
` |
|
|
8.824275 |
2 |
17.6485 |
|
9625278 |
|
|
8.991721 |
4 |
35.9669 |
|
1.7E+09 |
|
|
9.158608 |
4 |
36.6344 |
|
1.9E+09 |
|
|
9.324884 |
15 |
139.873 |
|
8.1E+07 |
|
|
9.490506 |
58 |
550.449 |
|
6.8E+09 |
|
|
9.655437 |
66 |
637.259 |
|
6.2E+07 |
|
|
9.81965 |
115 |
1129.26 |
|
4.3E+08 |
|
|
9.983123 |
150 |
1497.47 |
|
8E+07 |
|
|
10.14585 |
184 |
1866.84 |
|
5.8E+08 |
|
|
10.30781 |
223 |
2298.64 |
|
|
10.46903 |
320 |
3350.09 |
|
|
10.62951 |
190 |
2019.61 |
|
|
10.78927 |
402 |
4337.29 |
|
|
10.94834 |
701 |
7674.79 |
|
|
11.10675 |
504 |
5597.8 |
|
|
11.26456 |
403 |
4539.62 |
|
|
11.4218 |
329 |
3757.77 |
|
|
11.57855 |
382 |
4423.01 |
|
|
11.73487 |
370 |
4341.9 |
|
|
11.89083 |
359 |
4268.81 |
|
|
12.04652 |
156 |
1879.26 |
|
|
12.20203 |
259 |
3160.32 |
|
|
12.35746 |
372 |
4596.97 |
|
|
12.51292 |
210 |
2627.71 |
|
|
12.66852 |
239 |
3027.78 |
|
|
12.8244 |
237 |
3039.38 |
|
|
12.98067 |
307 |
3985.07 |
|
|
13.13749 |
296 |
3888.7 |
|
|
13.295 |
318 |
4227.81 |
|
|
13.45335 |
184 |
2475.42 |
|
|
13.6127 |
284 |
3866.01 |
|
|
13.77324 |
297 |
4090.65 |
|
|
13.93514 |
210 |
2926.38 |
|
|
14.09859 |
161 |
2269.87 |
|
|
14.26378 |
114 |
1626.07 |
|
|
14.43092 |
72 |
1039.03 |
|
|
14.60022 |
107 |
1562.22 |
|
|
14.7719 |
73 |
1078.35 |
|
|
14.94619 |
20 |
298.924 |
|
|
15.12332 |
21 |
317.59 |
|
|
15.30354 |
25 |
382.589 |
|
|
15.4871 |
16 |
247.794 |
|
|
15.67426 |
1 |
15.6743 |
|
|
15.86529 |
|
0 |
|
|
105150 |
|
|
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