DOE-2 Reference Manual Version 2.1 - DOE2.com

It is recognized that the program methodology for calculatingdemand surcharge calculation may not correspond to the methodused by each utility. Results may be brought into closeragreement with the actual demand charges by adjusting theinput for PEAK-LOAD-CHG.BLOCKis applicable only if charges for the resource being specifiedare nonuniform. It provides a method for specifying upto nine charge blocks. The user input is a list of the size,in energy units (see UNIT) of each block of energy used bythe facility. In current practice, the first block of energywill generally be highest in cost, with the ensuing blockshaving successively lower unit costs. The user specifies asmany blocks as there are different unit rates in the costschedule. For example, if the cost schedule has three chargeblocks sized at 100, 1000, and 10,000 units, the data entry isBLOCK ~ (100, 1000, 10000)Once block sizes have been specified, the program uses thesevalues, along with the specified unit energy costs for eachblock to calculate the monthly energy charge (see· COSTbelow).MULTIPLIERprovides an alternative method for specifying up to ninecharge blocks. MULTIPLIER specifies a list of numbers bywhich the program will multiply the monthly peak loads inorder to determine the number of energy units assigned tothe block of energy used by the facility. The user inputs alist of multipliers for each block of energy used by thefacility, entering as many numbers as there are differentunit rates in the cost schedule. For example, if the userentersMULTIPLIER ~ (1, 10, 100)and the PLANT program calculates a peak of 100 kW load forthe month in question, the program will calculate blocksizes as follows:Size of the first block ~ 1 x 100 ~ 100 kWhSize of the second block ~ 10 x 100 ~ 1000 kWhSize of the third block ~ 100 x 100 ~ 10,000 kwhWhen block sizes have been calculated, the program usesthese values, along with the specified unit energy costs(see COST) for each block, to calculate the monthly energycharge.V.88 (Revised 5/81)