Energy Conservation
As energy costs continue to rise, knowledge of energy efficient technologies and best practices are becoming more valuable. While these practices have slowly gained acceptance within the water and wastewater industries, increasingly strained budgets coupled with aging infrastructure make energy efficiency a feasible option to save money. Through desire and innovation, our staff has kept the Authority on the cutting edge of energy efficient technologies. As eluded to in the history page of this website the Authority, for the most part, pioneered microturbine technology utilizing anaerobic digester off-gases. In fact, its pilot program was the first of its kind to be successful in North America. That 30 KW digester gas-fired microturbine generator provided the Authority with yet another opportunity to apply current technology with exceptional pay back that proved to further reduce its increasing energy demands.

Upon completion of the Anaerobic Digestion Complex Refurbishment and Upgrade Project in the spring of 2007, the production of digester gases not only increased significantly, but their rate of generation was more stable and easier to predict. During 2008 it became apparent that the Authority should move from the microturbine Pilot Scale generation of electricity to Full Scale, as such a Co-Generation Project Technology Evaluation was undertaken.
Our evaluation focused on microturbine and internal combustion engine technologies. Equipment manufacturers of the above-referenced technologies were provided with current operating data which defined annual digester gas production and digester gas properties. They were requested to select the size and quantity of their equipment with the ultimate goal of providing the maximum annual electrical energy and heat production as a function of available digester gas. Other pertinent data required to be provided by the equipment manufacturers included expected emission rates, the capital cost of equipment including gas conditioning systems, noise, delivery time, and description of proposed factory protection plan and associated cost of the plan.

Once all information was received from the equipment manufacturers, staff and consultants proceeded to conduct life cycle analyses for each of the responses received in the effort to identify the most cost-effective technology for the Authority’s co-generation project. The life cycle analyses considered equipment capital cost, potential rebate amount, annual electrical and natural gas energy savings, and cost of the factory protection plan. The present value of all costs, rebate amount and energy savings was calculated over a nine 9 year timeframe (duration of a standard factory protection plan) at an interest rate of 3%. The technology has the highest net present value was deemed to be the most cost-effective technology. Non-cost factors were also considered in the overall technical evaluation which included the amount of excess gas required to be flared via the waste gas burners, emission rates, and noise. All pertinent data had been compiled and summarized in an “Evaluation Summary- Microturbines verses Internal Combustion Engines”.

As a result of that analysis, the internal combustion engines proposed by Senergie (2 units at 140 kW each) exhibited the highest present value and therefore were deemed to be the most cost-effective technology for the Authority’s co-generation project. In addition, the proposed combined heat and power co-generation system proposed by Senergie utilizes all available digester gas for the production of electrical and heat energy and therefore will not require flaring of excess digester gas, satisfies the allowable emission rates, and easily met established noise criteria of 70dB (A) at a distance of 1 meter (3.3 feet) from the equipment. In fact at the assumed property line of the Authority (a distance of 25 feet from the co-generation equipment), the noise level at this distance reduces to 52 dB(A) which is equivalent to the noise produced by a window air conditioner unit.

Based upon the recommendation of staff the Authority once again decided to move forward with a significant capital investment in an effort to reduce its dependency on third-party energy providers, reduce its carbon footprint, and moreover insulate its User-base form upward spiraling and out of Authority control increases in energy cost.
By the spring of 2010, the project had been designed, publically bid, constructed. The system underwent start-up operations during February and was officially placed into service on March 1, 2010. The table below clearly demonstrates the effectiveness of the project.




POWER
POWER


TOTAL
PURCHASED
GENERATED
OFFSET OF
MONTHLY

KW
FROM JCP&L
BY SMRSA
3RD
COST
2012
DEMAND
KW
KW
DEPENDENCY
SAVINGS
JAN
234,611
153,167
81,444
34.71%
12,217
FEB
197,550
120,183
77,367
39.16%
11,605
MAR
208,303
101,983
106,320
51.04%
15,948
APRIL
204,157
102,411
101,746
49.84%
15,262
MAY
239,647
122,310
117,337
48.96%
17,601
JUNE
202,976
98,646
104,330
51.40%
15,650
JULY
188,894
107,703
81,191
42.98%
12,179
AUG
196,160
127,417
68,743
35.04%
9,624
SEPT
158,038
104,110
53,928
34.12%
6,471
OCT
186,397
88,647
97,750
52.44%
11,730
NOV
200,044
131,216
68,828
34.41%
8,259
DEC
221,682
124,167
97,515
43.99%
10,727
2013









JAN
235,250
146,289
88,961
37.82%
9,786
FEB
187,291
129,746
57,545
30.72%
6,330
MARCH
193,579
136,861
56.718
29.30%
6,239
APRIL
194,282
113,464
80,818
41.60%
9,698
MAY
215,240
99,169
116,071
53.93%
13,929
JUNE
93,726
97,542
-3,816
-4.07%
-458
JULY
235,566
126,304
109,262
46.38%
12,019
AUG
208,885
103,586
105,299
50.41%
11,583
SEPT

217,799

105,980

111,819

51.34%

11,182
OCT

203,993

99,800

104,193

51.08%

12,503
NOV

205,679

109,117

96,562

46.95%

N/A
DEC

218,573

132,311

86,262

39.47%

9,489
2014










JAN

217,992

123,642

94,350

43.28%

10,379
FEB

204,030

134,525

69,505

34.07%

7,646
MAR

166,126

88,532

77,594

46.71%

4,656
APR

190,896

124,294

66,602

34.89%

7,326
MAY

203,729

81,441

122,288

60.02%

14,675
JUNE

200,369

68,427

131,942

65.85%

15,833
JULY

212,253

66,629

145,624

68.61%

17,475
AUG

213,883

78,758

135,125

63.18%

16,215
SEPT

191,964

79,542

112,422

58.56%

14,615
OCT

190,183

84,847

105,336

55.39%

12,640
NOV

199,351

96,559

102,792

51.56%

12,335
DEC

220,213

132,704

87,509

39.74%

9,626
2015










JAN

224,126

135,481

88,645

39.55%

9,751
FEB

202,760

132,655

70,105

34.58%

7,712
MAR

214,362

134,142

80,220

37.42%

8,824
APR

189,225

79,958

109,267

57.74%

13,112
MAY

200,945

69,516

131,429

65.41%

15,771
JUNE

206,492

73,171

133,321

64.56%

15,999
JULY

218,512

75,547

142,965

65.43%

17,156
AUG

217,258

80,308

136,950

63.04%

16,434
SEPT

205,616

109,789

95,827

46.60%

11,499
OCT

198,509

96,675

101,834

51.30%

12,220
NOV

192,966

94,638

98,328

50.96%

12,783
DEC

194,008

74,725

119,283

61.48%

14,314
2016










JAN

196,423

93,342

103,081

52.48%

12,370
FEB

210,741

120,461

90,280

42.84%

10,834
MARCH

181,639

82,774

98,865

54.43%

11,864
APRIL

184,985

77,111

107,874

58.31%

12,945
MAY

187,080

68,942

118,138

63.15%

15,358
JUNE

202,083

68,171

133,912

66.27%

17,409
JULY

217,754
82,865
134,889
61.95%
17,226
AUG

227,011
110,027
116,984
51.53%
14,269
SEPT

216,854
93,808
123,046
56.74%
15,148
OCT

203,846
84,281
119,565
58.65%
14,846
NOV

190,853
88,147
102,706
53.81%
12,854
DEC

217,743
102,156
115,587
53.08%
14,127
2017









JAN
209,843
98,658
111,185
52.98%
14,127
FEB
201,118
112,474
88,644
44.08%
11,285
MARCH
181,290
78,167
103,123
56.88%
14,324
APRIL
147,702
41,424
106,278
71.95%
16,292
MAY
208,347
92,231
116,116
55.73%
15,219
JUNE
223,457
135,217
88,240
39.49%
10,693
JULY
211,425
120,885
90,540
42.82%
11,086
AUGUST
227,441
106,517
120,924
53.17%
14,832
SEPT
209,855
100,941
108,914
51.90%
11,296
OCT
219,710
110,521
100,189
47.55%
10,235
NOV
224,896
131,106
93,790
41.70%
9,540
DEC
232,274
131,463
100.811
43.40%
10,324
2018









JAN
234,788
135,215
99.573
42.41%
10,013
FEB
186,526
88,697
97,829
52.45%
10,199
MARCH
182,375
85,445
96,930
53.15%
9,507
APRIL
190,739
102,911
87,828
46.05%
9,124
MAY
207,368
116,029
91,339
44.05%
9,415
JUNE
212,506
94,980
117,526
55.30%
13,180
JULY
216,201
89,088
127,113
58.79%
14,401


































The Authority remains firmly committed to its energy conservation program, and has put in place the following Best Management Practices to insure it’s continued efforts into the future:

*  Benchmark it's energy
consumption to that of other similar facilities.

*
Performed continued assessments to identify best practices to save energy.

*  Established a capital improvement program to generate funds to implement energy-efficiency projects.

*  Appointed an energy advocate among facility staff to champion energy-efficiency projects.

*  Instituted a program to continuously monitor, review and assess energy consumption on a  monthly and yearly basis.

*  Developed and maintained communications with management to increase awareness of the value of energy management.