Production cost in the process of distributing electricity to Libya Forecasting of electricity demand to determine the long-term from The Mathematical Model is Based On Forecasting

31 electricity needs in Libya should not be less than consumption. If that happens, it will shake up the Libyan economy. Besides that, attention should be paid to that the electric power will be lost, as long as we have not resolved the bias in producing electricity, should pay attention to power consumption and loss of electricity, or in other words to meet the demands for electricity in producing electricity it needs to accumulate between electricity consumption and electricity loss.

4.3.6 Production cost in the process of distributing electricity to Libya

Production costs for producing electricity to be distributed to consumers as in the Table 4.11. Table 4.11 Real and Forecasting of production Cost by SPSS Years Real of Production cost MWh Years Forecasting of Production cost MWh 2000 235,846,163.4 2011 537,150,947 2001 246,466,479.2 2012 571,653,578 2002 269,796,995.9 2013 606,156,210 2003 291,526,567.8 2014 640,658,842 2004 310,905,609.7 2015 675,161,473 2005 345,503,222.3 2016 709,664,105 2006 369,243,682.4 2017 744,166,737 2007 392,661,722 2018 778,669,368 2008 441,171,910 2019 813,172,000 2009 468,261,988.2 2020 847,674,632 2010 500,655,952.9 2021 882,177,264 2022 916,679,895

4.3.7 Forecasting of electricity demand to determine the long-term from

2011-2022 Forecasting electricity to meet the demand in Libya from year 2011-2022 as Table 4.12 and 4.13. commit to user 32 Table 4.12 Forecasting of electricity demand Years Generated MWh Consumption MWh 2011 34,902,596 33,396,572 2012 37,144,482 35,112,440 2013 39,386,368 36,828,308 2014 41,628,255 38,544,176 2015 43,870,141 40,260,043 2016 46,112,028 41,975,911 2017 48,353,914 43,691,779 2018 50,595,800 45,407,647 2019 52,837,687 47,123,515 2020 55,079,573 48,839,383 2021 57,321,460 50,555,251 2022 59,563,346 52,271,119 Source: analysis data by SPSS 15 version 2014 Table 4.13 Growth forecasting of electricity demand Years Generated MWh Consumption MWh 2011 6.44 7.24 2012 6.42 5.14 2013 6.04 4.89 2014 5.69 4.66 2015 5.39 4.45 2016 5.11 4.26 2017 4.86 4.09 2018 4.64 3.93 2019 4.43 3.78 2020 4.24 3.64 2021 4.07 3.51 2022 3.91 3.39 Source: analysis data by SPSS 15 version 2014 perpustakaan.uns.ac.id commit to user 33

4.3.8 The Mathematical Model is Based On Forecasting

Formula of forecasting: Q = a + b × a × y 4.1 Where, a = amount at the initial year b = coefficient y = difference between forecasting year target and the initial year Example: - mathematical forecasting of POP for 2017 y = 2017-2000 = 17 The increase in the amount of fuel consumption 2000-2010 Ratio of population = 2010-2000 = 6,355,112-5,231,189 =1123923 = 112392310 = 112392.3 Increase of population 100 population of Ratio   year initial the at Population Q 100 231189 , 5 112392.3   Q = 2.1485 or 0.0214 Q = 5,231,189 + 0.0214 5,231,189 y Q = 2,349,614 + 0.0789 x 2,349,614 x 17 Q = 7,134,295 Error if compare with result of forecasting of SPSS 100 2017 in SPSS by g Forecastin EViews or Formula by g forecastin - 2017 in SPSS by g Forecastin   Q commit to user 34

4.3.9 Calculation Exponential Smoothing