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The Preparatory Survey on Rural Electrification Project (Phase-2) in Kingdom of Bhutan whereas P is price of the service, K is the constant, Q is the quantity of the service consumed and e is the price elasticity. The convenience of the log-linear demand function is the fact that it enables two point determinations of all the parameters concerned. Therefore the data set involving the two states of pre- and post- electrification suffices for the estimation. In the above function, e is determined in the following formula. e = (Log(P1)-Log(P0))/ (Log(Q1)-Log(Q0)) whereas suffixes indicate 1: post electrification state and 0: pre-electrification state. Subsequently K is calculated by inserting, P, Q, e to the demand function. The consumer benefit to be estimated can be calculated by deriving the integral of the demand function. Incidentally, the integral function is calculated to be; D - 6 THE PREPARATORY SURVEY ON RURAL ELECTRIFICATION PROJECT (PHASE-2) IN KINGDOM OF BHUTAN FINAL REPORT APPENDIX APPENDIX-E OPERATION AND EFFECT INDICATORS Appendix-E Operation and Effect Indicators APPENDIX-E OPERATION AND EFFECT INDICATORS E.1 SAIDI BPC started to record SAIDI, SAIFI, and CAIDI from January 2005 in all Dzongkhags other tan Gasa. Table-E.1.1 shows dzongkhag-wise SAIDI from January to December 2009 for distribution lines. Table-E.1.1 SAIDI Data due to the Fault in Distribution Line (Jan-Dec 2009) (Unit: Min/Customer) Cumulative Dzongkhag Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Bumthang 4.8 0.0 81.8 0.0 0.0 316.6 0.0 0.0 0.0 0.0 0.0 0.0 370.7 Chhukha 3.3 0.0 0.2 23.3 1.0 5.6 19.0 0.6 2.3 3.2 12.1 39.3 107.2 Dagana 0.0 0.0 0.0 5.8 0.0 69.1 0.0 0.0 3,523.2 0.0 26.8 60.7 3,529.3 Haa 0.00.00.00.01.60.00.00.00.00.00.00.01.6 Lhuntse 0.0 0.0 0.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.1 Mongar 0.00.00.00.00.00.00.00.00.00.00.00.00.0 Paro 0.00.04.10.052.80.00.00.02.74.40.013.575.2 Pemagatsel 0.0 0.0 101.5 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 109.6 Punakha 36.6 57.4 273.5 6.8 77.6 8.9 26.9 1,090.8 134.6 102.2 0.0 0.0 1,739.4 Samtse 81.4 0.0 74.9 0.0 106.3 280.1 389.8 348.6 430.3 253.0 33.4 172.9 2,076.3 Sarpang 22.6 0.1 2.3 3.2 0.0 6.2 31.9 0.0 0.0 0.3 0.0 0.0 64.2 Samdrup Jongkhar 2.3 1.7 141.3 57.5 23.7 92.4 61.2 75.7 90.6 0.0 0.0 0.0 524.2 Thimphu 1.0 1.9 6.1 3.1 13.0 8.0 26.9 9.2 12.3 17.2 21.5 0.0 117.5 Trongsa 0.0 0.0 0.0 0.0 0.0 3.2 0.0 3.8 120.9 0.0 5.6 19.0 150.3 Trashigang 0.0 0.0 13.5 0.0 0.0 0.0 0.0 0.0 0.0 64.7 65.0 0.0 141.1 Tashiyangtse 0.00.00.00.00.00.00.00.00.00.00.00.00.0 Tsirang 0.0 66.7 0.0 0.0 0.0 0.0 91.7 97.2 10.1 0.0 0.0 0.0 230.5 Wangdue 0.0 93.0 26.1 9.4 85.3 126.5 134.3 62.4 0.0 231.7 23.3 0.7 757.6 Zhemgang 0.00.00.00.40.00.00.00.00.00.07.60.07.9 All Dzonkhags 0.10.10.60.10.40.60.71.31.40.60.20.3365.8 E.2 Bill Collection Rate The bill collection rate is currently available with total charged bill amount and total collected tariff revenue from energy sold. Dzongkhag-wise bill collection data is summarized in the from Table-E.2.1, E.2.2, E.2.3 for the year 2002-2003, 2004, and 2005. E - 1 The Preparatory Survey on Rural Electrification Project (Phase-2) in Kingdom of Bhutan Table-E.2.1 Bill Collection Rate in 2007 Unit: Nu. Dzongkhag Outstanding as of Total Billed Bill Sl.No (ESD Office) Dec 2006 Amount Billed Total Collectable Collection Collection 1 Bumthang 286,587 4,070,688 4,357,275 4,091,292 93.9% 2 Chukha 712,498 732,343,650 733,056,147 732,103,873 99.9% 3 Dagana 114,933 904,121 1,019,054 936,381 91.9% 4 Gelephu 897,965 12,233,586 13,131,552 12,021,209 91.5% 5 Haa 915,748 9,141,829 10,057,577 8,846,636 88.0% 6 Lhuentse 125,996 2,032,436 2,158,431 1,983,381 91.9% 7 Mongar 300,467 7,220,514 7,520,980 7,178,743 95.4% 8 Paro 2,443,844 28,417,279 30,861,124 29,498,012 95.6% 9 Pema Gatshel 226,789 5,131,774 5,358,564 5,041,977 94.1% 10 Punakha 688,133 9,984,214 10,672,348 9,824,571 92.1% 11 Samdrup Jongkhar 303,509 115,534,872 115,838,380 115,425,169 99.6% 12 Samtse 483,831 107,425,618 107,909,449 107,379,280 99.5% 13 Thimphu 12,769,280 128,743,770 141,513,050 127,321,988 90.0% 14 Trashigang 1,311,553 10,328,238 11,639,791 11,069,901 95.1% 15 Trashiyangtse 118,752 3,253,424 3,372,176 3,276,217 97.2% 16 Trongsa 252,219 1,966,164 2,218,383 1,985,946 89.5% 17 Tsirang 128,971 1,003,573 1,132,544 1,013,227 89.5% 18 Wangdue 851,379 8,412,027 9,263,407 8,441,350 91.1% 19 Zhemgang 94,747 2,828,517 2,923,264 2,782,151 95.2% TOTAL 23,027,201 1,190,976,295 1,214,003,496 1,190,221,303 98.0% Note: Gasa Dzongkhag does not have Electricity Services Division (ESD). The data of Gasa is included in the that of Punakha. * Total collectable is the sum of the amount billed for the concerned year and the outstanding from the previous year Source: ESD, BPC Table-E.2.2 Bill Collection Rate in 2008 Unit: Nu. Dzongkhag Outstanding as of Total Billed Bill Sl.No (ESD Office) Dec 2007 Amount Billed Total Collectable Collection Collection 1 Bumthang 264,530 4,590,681 4,855,211 4,474,316 92.2% 2 Chukha 902,758 978,142,151 979,044,909 936,113,220 95.6% 3Dagana 83,042 968,457 1,051,499 966,365 91.9% 4 Gelephu 1,130,887 13,856,814 14,987,700 13,780,988 91.9% 5 Haa 1,199,764 11,079,437 12,279,200 11,184,594 91.1% 6 Lhuentse 174,954 2,145,846 2,320,800 2,167,792 93.4% 7 Mongar 334,097 7,432,560 7,766,657 7,433,353 95.7% 8 Paro 1,358,886 36,633,491 37,992,377 36,636,989 96.4% 9 Pema Gatshel 314,835 4,560,762 4,875,597 4,601,740 94.4% 10 Punakha 821,532 11,447,924 12,269,456 11,177,626 91.1% 11 Samdrup Jongkhar 416,871 192,521,090 192,937,961 192,535,429 99.8% 12 Samtse 531,857 116,754,325 117,286,183 116,754,146 99.5% 13 Thimphu 14,206,978 159,332,730 173,539,708 154,367,068 89.0% 14 Trashigang 561,250 11,223,624 11,784,874 11,123,866 94.4% 15 Trashiyangtse 95,368 2,759,616 2,854,984 2,744,916 96.1% 16 Trongsa 228,883 2,093,035 2,321,918 1,938,319 83.5% 17 Tsirang 119,286 944,478 1,063,764 975,862 91.7% 18 Wangdue 820,939 10,621,138 11,442,077 10,695,532 93.5% 19 Zhemgang 140,290 2,637,114 2,777,404 2,694,626 97.0% TOTAL 23,707,008 1,569,745,272 1,593,452,280 1,522,366,746 95.5% Note: Gasa Dzongkhag does not have Electricity Services Division (ESD). The data of Gasa is included in the that of Punakha. * Total collectable is the sum of the amount billed for the concerned year and the outstanding from the previous year Source: ESD, BPC E - 2 Appendix-E Operation and Effect Indicators Table-E.2.3 Bill Collection Rate in 2009 Unit: Nu. Bill Dzongkhag Outstanding as of Total Billed Collection Sl.No (ESD Office) Dec 2008 Amount Billed Total Collectable Collection Rate 1 Bumthang 379,191 6,054,871 6,434,062 5,736,632 89.2% 2 Chukha 42,655,385 1,462,638,716 1,505,294,102 1,446,619,685 96.1% 3 Dagana 83,177 1,385,055 1,468,232 1,195,049 81.4% 4 Gelephu 936,542 17,947,020 18,883,562 18,135,250 96.0% 5 Haa 1,049,991 12,934,703 13,984,694 12,613,449 90.2% 6 Lhuentse 152,831 2,687,286 2,840,117 2,673,789 94.1% 7 Mongar 326,895 9,289,111 9,616,006 9,139,994 95.0% 8 Paro 1,386,025 40,650,823 42,036,848 38,195,041 90.9% 9 Pema Gatshel 198,141 5,029,371 5,227,512 4,800,678 91.8% 10 Punakha 1,079,335 11,760,186 12,839,521 11,406,674 88.8% 11 Samdrup Jongkhar 414,731 200,685,865 201,100,595 199,871,416 99.4% 12 Samtse 526,085 126,851,165 127,377,250 127,055,311 99.7% 13 Thimphu 19,121,249 172,572,150 191,693,400 172,417,064 89.9% 14 Trashigang 649,550 12,954,790 13,604,340 12,938,825 95.1% 15 Trashiyangtse 110,648 3,611,979 3,722,626 3,582,191 96.2% 16 Trongsa 383,052 2,828,841 3,211,893 2,812,605 87.6% 17 Tsirang 87,785 2,522,477 2,610,261 2,162,165 82.8% 18 Wangdue 747,244 15,791,766 16,539,010 13,647,378 82.5% 19 Zhemgang 83,065 3,129,040 3,212,105 3,087,684 96.1% TOTAL 70,370,921 2,111,325,215 2,181,696,136 2,088,090,880 95.7% Note: Gasa Dzongkhag does not have Electricity Services Division (ESD).