Page 231 - Sustainable Cities and Communities Design Handbook

Life Cycle Analysis Chapter j 10 205

C j Cumulative costs to participants in year i
C p Costs to participants
C pa Costs of the program
C RIM Costs to rate levels or customer bills
C TRC Costs of the program
D Discount rate
DDG it Reduction in gross billing demand in costing period i in year t
DDN it Reduction in net demand in costing period i in year t
DP p Discounted payback in years
E Discounted stream of system energy sales - (kWh or therms) or
demand sales (kW) or first-year customers
DEG it Reduction in gross energy use in costing period i in year t
DEN it Reduction in net energy use in costing period i in year t
E t System sales in kWh, kW, or therms in year t or first-year customers
FRI RIM First-year revenue impact of the program per unit of energy, demand,
or per customer
IMP Total discounted load impacts of the program
INC t Incentives paid to the participant by the sponsoring utility in year t
First year in which cumulative benefits are cumulative costs
K it 1when DEG it or DDG it is positive (a reduction) in costing period i in
year t, and 0 otherwise
LC pa Total program administrator costs used for levelizing
LC pa Levelized cost per unit of program administrator cost of the resource
LCRC Total resource costs used for levelizing
LC TRC Levelized cost per unit of the total cost of the resource
LRI RIM Lifecycle revenue impact of the program per unit of energy (kWh or
therm) or demand (kW)dthe one-time change in ratesdor per
customerdthe change in customer bills over the life of the program.
MC:D it Marginal cost of demand in costing period i in year t
MC:E it Marginal cost of energy in costing period i in year t
NPV avp Net present value to the average participant
NPV P Net present value to all participants
NPV pa Net present value of program administrator costs
NPV RIM Net present value levels
NPV TRC Net present value of total costs of the resource
OBI t Other bill increases (i.e., customer charges, standby rates).
OBR t Other bill reductions or avoided bill payments (e.g., customer charges,
standby rates).
P Number of program participants
PAC at Participant-avoided costs in year t for alternate fuel devices
PA t Program administrator costs in year t
PC t Participant costs in year t to include:
l Initial capital costs, including sales tax
l Ongoing operation and maintenance costs
l Removal costs, less salvage value
l Value of the customer’s time in arranging for installation, if significant
PCN Net participant costs
PRC t Program administrator program costs in year t
RG t Revenue gain from increased sales in year t
RL at Revenue loss from avoided bill payments for alternate fuel in year t
(i.e., device not chosen in a fuel substitution program)