A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...

. CCFIXED = 2.OE6 +'0.14 x DCC + 0.093 x P, + CFIXED (V.A - 25)
where DCC = all other direct capital costs
P, = design point turbine electric power (watts)
CF~XED = any other additional fixed costs
The user only has control over CCFIXED, which has a default of
CFIXED (CFIXED) = $0.0
V.B. Calculation of Levelized Energy Cost
Based on the total capital cost CCT defined in Equation (V.A-1) using the
component cost models discussed in the previous section, a levelized (or dis-
counted average) cost of energy over the lifetime of the plant is calculated as fol-
lows (References 41 and 42):
1) The total investment at operation startup, CCST-UP,T, will be the current
capital cost estimate, CCT, escalated over the time period from the time
of the cost estimate to the first year of construction (NYTCON), plus the
interest on the borrowed investment during the construction period, iDc.
Note that the length of the construction period is not explicitly stated,
but that time period would be factored into the value of iDc.
CCST-Up,T = CCT x (1.0 + iDC)(l.O + ESC) NYTCON
In current, supposedly more valuable dollars,
C C s T - UP ,T
CCST-UP,cur$ = - NYTCON
(1.0 + rinf)
(V.B - 1)
(V.B - 2)
where rjnf is the general rate of inflation, which is not necessarily equal to
the capital escalation rate ESC.
2) The levelized energy cost includes both capital recovery and operating
and maintenance (O&M) charges. The O&M charges are calculated as a
levelized percentage of the capital cost. DELSOL splits O&M charges into
heliostat and non-heliostat rates:
135