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Structure of the initial information for model work

the Information under projects
On each of i the investment projects entering into an initial investment portfolio, the following information on terms is set:
The earliest year of the beginning of building tn;
S; - the period during which, including year tn ^ probably to begin project realisation, i.e.
the building beginning can be postponed on srl years.
Cj - a construction period
T; - the period of normal operation
Si


The project 1:
1 2 |3 J4 |5 6 7 8 9 10 11 11 13 14 15 16 17 IS 19 20 21 22 |23 \' 24 \"25
Year of the beginning of realisation tni investats programs
Possible years \' X1 - normal operation oekektat
The beginnings
Object buildings!


Possible years of the beginning
Buildings of object 2
n -
i 16 47
4 I5 6 7 8 9 10 II 12 13 14 15 16
13
19 20 21 22 23 24 15
I I I I
Т2-нормальная Operation of object 2
Fig. 2.5. Possible shift of investment projects on time axis
So, for example, on fig. 2.5. For the project 1: toi=2, Sj—З, =1, i.e. project realisation can be begun in any of years 2, 3, 4. Normal operation of object during Ti can be begun =20 years in days of 3, 4, 5. Accordingly, the termination of life cycle of the project is necessary on one of years 22, 23, 24.
For the project 2: prospective year of the beginning of building tn2 — year 1. S2 \"4, Cj =1. t.e project realisation can be carried out in one of four years: year 1, 2, 3, 4. Normal operation of object 2 during Tg ~ can be carried out 15 years in one of following four periods: years 2-16, years 317, years 4-18, or years 5-19.
Thus, in model possibility sdvizhenija the project on an axis of time for significant number of years is supplied. Further in model on the basis of variable Xit (buleva a variable; «1» reflects the fact of the beginning of realisation of the project i in a year t), and also preset values tn;, q, T; settlement variable Y is calculated; b designating availability/absence in a year t normal operation under the project i. All cash flows connected with realisation
The project, are calculated on the basis of significances Xit varied in model and Yit. The model is constructed in such a manner that cash flows in years when the project is not realised (i.e. if the project is not selected absolutely not in the investment program, or has already finished/yet the beginnings reapizovyvatsja), will be equal to zero.
If such approach was not applied, it would be necessary to consider each of variants of the beginning of realisation of the project i as different projects, that considerably would increase quantity of variables.
On each of projects i its technological parametres are set also:
The established electric capacity on which there should be an object i after the termination of term of its building (JV ™ ^)
Minimum and maximum number of hours of use of the established electric capacity for energoobekta, constructed under the project i in a year UA^h/TS,)
The cost for own needs by production of the electric power by the capacities constructed under the project i {К0 \",)
The tariff for the electric power for the project i in a year t (т3и) (odnostavochnyj)
The factor defining established thermal capacity (proportionally electric capacity) (Kq)
Number of hours of use of the established thermal capacity energoobekta under the project i in a year t (Itf)
The tariff on teploenergiju for capacities under the project i in a year t (g *)
Total volume of investments in energoobekt under the project i for all years (KViConst)
File d and defining distribution of investments on years at project realisation, in unit shares. For example: in 1st year of building - 0,4 (40 %), in 2nd year - 0,3 (30 %), in 3rd year - 0,3 (30 %); dg = [0,4; 0,3; 0,3]
Minimum and maximum norm of depreciation charges for the project and
The specific cost of conditional fuel for production of the electric power for capacities under the project i (and \'/)
The price of the fuel used at normal operation energoobekta under the project i in year t {TSti)
Number of the staff taken in the project i in year t (pl ™)
Average wages of the staff taken in the project i in year t (zpcons \'u)
Specific other fixed charges counting on a power unit for the capacities which are under construction under the project i in year t (CiConst)
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A source: KULIKOVA Kira Aleksandrovna. ECONOMIC MODELS of FORMATION of the INVESTMENT PROGRAM of the ELECTROGENERATING COMPANY In the conditions of REFORMING of BRANCH. 2005

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