Jumlah Pegawai (orang) Cihideung , Cihideung 5 (UF System) Waktu Kerja per hari (jam)

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Lampiran 1. Perhitungan Biaya Variabel Tiap WTP

Uraian Nilai Total

(Rp/per bulan)

gaji pegawai 1,266,000.00

bahan kimia 17,000,000.00

perbaikan dan perawatan 5,000,000.00

Listrik * 35,000,000.00

* Listrik WTP Sungai Cihideung Rp. 9,000,000.00, WTP Sungai Ciapus Rp. 26,000,000.00 (biaya listrik PLN)

Rincian Gaji Pegawai Jumlah (Rp) Pokok 400,000.00 Uang makan 147,000.00 Lembur 719,000.00 TOTAL 1,266,000.00 WTP Waktu Kerja per hari (jam) Kapasitas Produksi (l/s) Penggunaan Listrik per jam (kWh) Jumlah Pegawai (orang) Cihideung 1-4 18.5 32.17 1,341.672 6

Cihideung 5 (UF System) 5.5 7.92 608.289

Ciapus Asrama TPB 20 18.69 961.990 2

Ciapus Perumahan Dosen

dan Asrama lain 20 12.55 768.817 4

 Perhitungan biaya variabel untuk WTP Cihideung 5 :

Gaji Pegawai

= 𝑗𝑎𝑚 𝑘𝑒𝑟𝑗𝑎 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔 5

𝑡𝑜𝑡𝑎𝑙 𝑗𝑎𝑚 𝑘𝑒𝑟𝑗𝑎 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔𝑥𝑗𝑢𝑚𝑙𝑎ℎ 𝑝𝑒𝑔𝑎𝑤𝑎𝑖 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔𝑥𝑔𝑎𝑗𝑖 𝑝𝑒𝑟 𝑜𝑟𝑎𝑛𝑔

= 5.5

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Bahan Kimia

Perbandingan harga dan pemakaian bahan kimia :

Jenis bahan kimia Kiriman per 2 bulan (kg) Harga (Rp) Perbandingan harga Pemakaian WTP Cihideung 1-4 Pemakaian WTP Cihideung 5

PAC 3,800 3,850 0.28 14kg/250 liter/hari 14kg/250 liter/3hari

Tawas - 3,350 0.30 - -

Kaporit 585 28,650 0.40 6/7 bagian 1/7 bagian

NaOH 160 4,800 0.02 6/7 bagian 1/7 bagian

HCl 75 3,600 0.01 6/7 bagian 1/7 bagian

Contoh perhitungan biaya NaOH :

= 1 7 𝑥𝑝𝑒𝑟𝑏𝑎𝑛𝑑𝑖𝑛𝑔𝑎𝑛 ℎ𝑎𝑟𝑔𝑎 𝑥 𝑏𝑖𝑎𝑦𝑎 𝑡𝑜𝑡𝑎𝑙 𝑏𝑎ℎ𝑎𝑛𝑘𝑖𝑚𝑖𝑎 =1 7𝑥0.02 𝑥 𝑅𝑝. 17,000,000.00 = 𝑅𝑝. 48,571.43/𝑏𝑢𝑙𝑎𝑛 Biaya Maintenance =𝑗𝑎𝑚 𝑘𝑒𝑟𝑗𝑎 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔 5 𝑡𝑜𝑡𝑎𝑙 𝑗𝑎𝑚 𝑘𝑒𝑟𝑗𝑎 𝑊𝑇𝑃 𝑥𝑏𝑖𝑎𝑦𝑎 𝑡𝑜𝑡𝑎𝑙 𝑚𝑎𝑖𝑛𝑡𝑒𝑛𝑎𝑛𝑐𝑒𝑝𝑒𝑟 𝑏𝑢𝑙𝑎𝑛 = 5.5 𝑗𝑎𝑚 18.5𝑥4 + 5.5 + 20 + 20 𝑗𝑎𝑚𝑥𝑅𝑝. 5,000,000.00/𝑏𝑢𝑙𝑎𝑛 = 𝑅𝑝. 230,125.52/𝑏𝑢𝑙𝑎𝑛 Biaya Listrik = 𝑘𝑊ℎ 𝑙𝑖𝑠𝑡𝑟𝑖𝑘 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔 5 𝑡𝑜𝑡𝑎𝑙 𝑘𝑊ℎ 𝑙𝑖𝑠𝑡𝑟𝑖𝑘 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔𝑥𝑡𝑜𝑡𝑎𝑙 𝑙𝑖𝑠𝑡𝑟𝑖𝑘 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔𝑝𝑒𝑟 𝑏𝑢𝑙𝑎𝑛 = 608.289 1,341.672 + 608.289𝑥𝑅𝑝. 9,500,000.00/𝑏𝑢𝑙𝑎𝑛 = 𝑅𝑝. 2,963,518.49/𝑏𝑢𝑙𝑎𝑛

Rincian Biaya Variabel Tiap WTP per Tahun :

Uraian WTP Cihideung 1-4 WTP Cihideung 5 WTP Asrama TPB WTP Perumdos dan Asrama lain Rp/tahun Gaji Pegawai _{84,845,886.79} _6,306,113.21 _{60,768,000.00} _{30,384,000.00} Bahan Kimia _{114,822,857.14 19,137,142.86} _{51,340,000.00} _{20,740,000.00} Maintenance _{37,154,811.72} _2,761,506.28 _{10,041,841.00} _{10,041,841.00} Listrik _{78,437,778.07 35,562,221.93} _{173,410,999.33} _{138,589,000.67} Total _{315,261,333.72 63,766,984.27} _{295,560,840.34} _{199,754,841.67}

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Lampiran 2. Rincian Pendapatan Tiap WTP

Pendapatan Tiap WTP (Unit Usaha dalam Kampus)

WTP CIHIDEUNG CIAPUS

Total Pendapatan

Uraian WTP 1-4 WTP 5 Asrama TPB Perumdos &

Asrama lain

Jam Kerja (menit) 4440 330 1200 1200

Kapasitas Produksi (L/s) 32.17 7.92 18.69 12.55

Pendapatan Profit dari Struk (Rp/bln) 48,743,440.46 4,693,786.84

Pendapatan Profit per WTP (Rp/bln) 39,113,905.70 9,629,534.76 2,808,158.65 1,885,628.20 53,437,227.30

Pendapatan Profit per WTP (Rp/tahun) 469,366,868.42 115,554,417.09 33,697,903.76 22,627,538.37 641,246,727.66

Contoh perhitungan pendapatan tiap WTP :

Pendapatan WTP Cihideung 5 per tahun

= 𝑘𝑎𝑝𝑎𝑠𝑖𝑡𝑎𝑠 𝑝𝑟𝑜𝑑𝑢𝑘𝑠𝑖 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔 5

𝑡𝑜𝑡𝑎𝑙 𝑘𝑎𝑝𝑎𝑠𝑖𝑡𝑎𝑠 𝑝𝑟𝑜𝑑𝑢𝑘𝑠𝑖 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔𝑥 𝑝𝑒𝑛𝑑𝑎𝑝𝑎𝑡𝑎𝑛 𝑊𝑇𝑃 𝐶𝑖ℎ𝑖𝑑𝑒𝑢𝑛𝑔 𝑝𝑒𝑟 𝑏𝑢𝑙𝑎𝑛 𝑥 12

= 7.92 𝑙/𝑠

40.09 𝑙/𝑠𝑥 𝑅𝑝. 48,743,440.46/bulan 𝑥 12𝑏𝑢𝑙𝑎𝑛

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Lampiran 3. Analisis Biaya dan Titik Impas WTP Cihideung UF System

1. Analisis Biaya Tetap

Spesifikasi Rp/tahun

Penyusutan Investasi WTP

Harga awal (Rp) 1,500,000,000.00

Harga akhir (Rp) 150,000,000.00

Umur ekonomis (tahun) 20

67,500,000.00

Bunga Modal 15%/tahun 118,125,000.00

Biaya Tetap (BT) 185,625,000.00

2. Analisis Biaya dan Titik Impas

Spesifikasi Perhitungan Satuan Nilai

Kapasitas produksi WTP (kW) m3/tahun 56,430

Harga jual air bersih (S) Rp 4,500

Biaya Tidak Tetap (BTT)

Gaji Pegawai Rp/tahun _6,306,113.21

Bahan Kimia Rp/tahun 19,137,142.86

Maintenance Rp/tahun _2,761,506.28

Listrik Rp/tahun 35,526,221.93

Total Biaya Tidak Tetap (BTT) Rp/tahun 63,776,984.27

Biaya Total (B) BT+BTT Rp/tahun 249,391,984.27

Biaya Pokok Produksi (BP) B : kW Rp/ m3 4,419.49

Pendapatan per tahun (I) kW*S Rp/tahun 253,935,000.00

Keuntungan I - B Rp/tahun 4,543,015.73

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Lampiran 4. Analisis Kelayakan WTP Cihideung UF System (NPV, IRR, dan B/C) Tahun ke- Biaya ( C ) Keuntungan ( B ) B-C DF 15% NPV 15% 0 1,500,000,000.00 (1,500,000,000.00) 1 (1,500,000,000.00) 1 63,776,984.27 253,935,000.00 190,168,015.73 0.8696 165,363,491.94 2 63,776,984.27 253,935,000.00 190,168,015.73 0.7561 143,794,340.81 3 63,776,984.27 253,935,000.00 190,168,015.73 0.6575 125,038,556.57 4 63,776,984.27 253,935,000.00 190,168,015.73 0.5718 108,729,179.63 5 63,776,984.27 253,935,000.00 190,168,015.73 0.4972 94,547,112.22 6 63,776,984.27 253,935,000.00 190,168,015.73 0.4323 82,214,880.63 7 63,776,984.27 253,935,000.00 190,168,015.73 0.3759 71,491,200.54 8 63,776,984.27 253,935,000.00 190,168,015.73 0.3269 62,166,261.02 9 63,776,984.27 253,935,000.00 190,168,015.73 0.2843 54,057,618.27 10 63,776,984.27 253,935,000.00 190,168,015.73 0.2472 47,006,624.34 11 63,776,984.27 253,935,000.00 190,168,015.73 0.2149 40,875,325.73 12 63,776,984.27 253,935,000.00 190,168,015.73 0.1869 35,543,761.50 13 63,776,984.27 253,935,000.00 190,168,015.73 0.1625 30,907,618.54 14 63,776,984.27 253,935,000.00 190,168,015.73 0.1413 26,876,190.03 15 63,776,984.27 253,935,000.00 190,168,015.73 0.1229 23,370,599.90 16 63,776,984.27 253,935,000.00 190,168,015.73 0.1069 20,322,260.89 17 63,776,984.27 253,935,000.00 190,168,015.73 0.0929 17,671,531.21 18 63,776,984.27 253,935,000.00 190,168,015.73 0.0808 15,366,548.80 19 63,776,984.27 253,935,000.00 190,168,015.73 0.0703 13,362,216.35 20 63,776,984.27 253,935,000.00 190,168,015.73 0.0611 11,619,318.50 NPV (309,675,353.87) NPV (DF 15%) = Rp -309,675,353.87 IRR = 11.17 % B/C (DF 15%) = 0.83

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Lampiran 5. Analisis Sensitivitas WTP Cihideung UF System dengan Kenaikan Harga Jual Air Bersih 5% Tahun ke- Biaya ( C ) Keuntungan ( B ) B-C DF 15% NPV 15% 0 1,500,000,000.00 (1,500,000,000.00) 1 (1,500,000,000.00) 1 63,776,984.27 266,631,750.00 202,864,765.73 0.8696 176,404,144.11 2 63,776,984.27 266,631,750.00 202,864,765.73 0.7561 153,394,907.92 3 63,776,984.27 266,631,750.00 202,864,765.73 0.6575 133,386,876.45 4 63,776,984.27 266,631,750.00 202,864,765.73 0.5718 115,988,588.22 5 63,776,984.27 266,631,750.00 202,864,765.73 0.4972 100,859,641.93 6 63,776,984.27 266,631,750.00 202,864,765.73 0.4323 87,704,036.46 7 63,776,984.27 266,631,750.00 202,864,765.73 0.3759 76,264,379.53 8 63,776,984.27 266,631,750.00 202,864,765.73 0.3269 66,316,851.77 9 63,776,984.27 266,631,750.00 202,864,765.73 0.2843 57,666,827.62 10 63,776,984.27 266,631,750.00 202,864,765.73 0.2472 50,145,067.50 11 63,776,984.27 266,631,750.00 202,864,765.73 0.2149 43,604,406.52 12 63,776,984.27 266,631,750.00 202,864,765.73 0.1869 37,916,875.24 13 63,776,984.27 266,631,750.00 202,864,765.73 0.1625 32,971,195.86 14 63,776,984.27 266,631,750.00 202,864,765.73 0.1413 28,670,605.09 15 63,776,984.27 266,631,750.00 202,864,765.73 0.1229 24,930,960.95 16 63,776,984.27 266,631,750.00 202,864,765.73 0.1069 21,679,096.48 17 63,776,984.27 266,631,750.00 202,864,765.73 0.0929 18,851,388.24 18 63,776,984.27 266,631,750.00 202,864,765.73 0.0808 16,392,511.51 19 63,776,984.27 266,631,750.00 202,864,765.73 0.0703 14,254,357.84 20 63,776,984.27 266,631,750.00 202,864,765.73 0.0611 12,395,093.77 NPV (230,202,186.98) NPV (DF 15%) = Rp -230,202,186.98 IRR = 12.19% B/C (DF 15%) = 0.88

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Lampiran 9. Analisis Sensitivitas WTP Cihideung UF System dengan Kenaikan Harga Jual Air Bersih 15% Tahun ke- Biaya ( C ) Keuntungan ( B ) B-C DF 15% NPV 15% 0 1,500,000,000.00 (1,500,000,000.00) 1 (1,500,000,000.00) 1 63,776,984.27 292,025,250.00 228,258,265.73 0.8696 198,485,448.46 2 63,776,984.27 292,025,250.00 228,258,265.73 0.7561 172,596,042.14 3 63,776,984.27 292,025,250.00 228,258,265.73 0.6575 150,083,514.90 4 63,776,984.27 292,025,250.00 228,258,265.73 0.5718 130,507,404.26 5 63,776,984.27 292,025,250.00 228,258,265.73 0.4972 113,484,699.36 6 63,776,984.27 292,025,250.00 228,258,265.73 0.4323 98,682,347.27 7 63,776,984.27 292,025,250.00 228,258,265.73 0.3759 85,810,736.76 8 63,776,984.27 292,025,250.00 228,258,265.73 0.3269 74,618,031.96 9 63,776,984.27 292,025,250.00 228,258,265.73 0.2843 64,885,245.18 10 63,776,984.27 292,025,250.00 228,258,265.73 0.2472 56,421,952.33 11 63,776,984.27 292,025,250.00 228,258,265.73 0.2149 49,062,567.25 12 63,776,984.27 292,025,250.00 228,258,265.73 0.1869 42,663,101.95 13 63,776,984.27 292,025,250.00 228,258,265.73 0.1625 37,098,349.52 14 63,776,984.27 292,025,250.00 228,258,265.73 0.1413 32,259,434.37 15 63,776,984.27 292,025,250.00 228,258,265.73 0.1229 28,051,682.06 16 63,776,984.27 292,025,250.00 228,258,265.73 0.1069 24,392,767.01 17 63,776,984.27 292,025,250.00 228,258,265.73 0.0929 21,211,101.75 18 63,776,984.27 292,025,250.00 228,258,265.73 0.0808 18,444,436.30 19 63,776,984.27 292,025,250.00 228,258,265.73 0.0703 16,038,640.26 20 63,776,984.27 292,025,250.00 228,258,265.73 0.0611 13,946,643.71 NPV (71,255,853.20) NPV (DF 15%) = Rp -71,255,853.20 IRR = 14.14 % B/C (DF 15%) = 0.96

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Lampiran 12. Analisis Sensitivitas WTP Cihideung UF System dengan Kenaikan Harga Jual Air Bersih 20% Tahun ke- Biaya ( C ) Keuntungan ( B ) B-C DF 15% NPV 15% 0 1,500,000,000.00 (1,500,000,000.00) 1 (1,500,000,000.00) 1 63,776,984.27 304,722,200.00 240,955,015.73 0.8696 209,526,100.63 2 63,776,984.27 304,722,200.00 240,955,015.73 0.7561 182,196,609.24 3 63,776,984.27 304,722,200.00 240,955,015.73 0.6575 158,431,834.13 4 63,776,984.27 304,722,200.00 240,955,015.73 0.5718 137,766,812.28 5 63,776,984.27 304,722,200.00 240,955,015.73 0.4972 119,797,228.07 6 63,776,984.27 304,722,200.00 240,955,015.73 0.4323 104,171,502.67 7 63,776,984.27 304,722,200.00 240,955,015.73 0.3759 90,583,915.37 8 63,776,984.27 304,722,200.00 240,955,015.73 0.3269 78,768,622.06 9 63,776,984.27 304,722,200.00 240,955,015.73 0.2843 68,494,453.96 10 63,776,984.27 304,722,200.00 240,955,015.73 0.2472 59,560,394.75 11 63,776,984.27 304,722,200.00 240,955,015.73 0.2149 51,791,647.61 12 63,776,984.27 304,722,200.00 240,955,015.73 0.1869 45,036,215.31 13 63,776,984.27 304,722,200.00 240,955,015.73 0.1625 39,161,926.36 14 63,776,984.27 304,722,200.00 240,955,015.73 0.1413 34,053,849.01 15 63,776,984.27 304,722,200.00 240,955,015.73 0.1229 29,612,042.62 16 63,776,984.27 304,722,200.00 240,955,015.73 0.1069 25,749,602.27 17 63,776,984.27 304,722,200.00 240,955,015.73 0.0929 22,390,958.50 18 63,776,984.27 304,722,200.00 240,955,015.73 0.0808 19,470,398.70 19 63,776,984.27 304,722,200.00 240,955,015.73 0.0703 16,930,781.47 20 63,776,984.27 304,722,200.00 240,955,015.73 0.0611 14,722,418.67 NPV 8,217,313.69 NPV (DF 15%) = Rp 8,217,313.69 IRR = 15.10 % B/C (DF 15%) = 1.00