Question

(c) Photovoltaic system installed to supply 2 kWh of energy per day pumping system which using centrifugal pump and DC motor. The peak sun hours in Oman are 6 h and the expected Project Life (PL) is 24 years. The system is designed to have the components and rating is as shown in Table Q3c1. Table Q3c2 shows the actual costs, quantities and life periods of the various components that are considered for Life Cycle Cost (LCC) calculations. Assume the interest and inflation rates in Oman are 7% and 4%, respectively. Calculate the LCC of the system. P (10 Marks) Table Q3c1 Specifications 200 Wp, Vmp 40 V, Imp 5 A, Voc 50 V, Isc 5.5 A. The number of modules considered in this project is 30. 12V, 100AH, Deep cycle maintenance free solar batteries with 6 years life. 12 V-50 V, 4000 W Components Solar Modules Batteries MPPT Battery charge controller Table Q3c2 Quantity Total cost (OMR) 7,800 3,000 500 Life periods LP (years) 24 6 12 12 Component PV modules 30 Batteries 20 Charge Controller Cables Mechanical Frames Installation&Commissioning Annual Maintenance AMC 1 1 450 850 1175 200 32 24 estion 4:

Answer 1

LCC 24/LP TC

where, LCC -Life Cycle Cost

LP - Life Periods

TC - Total Cost

LCC = 7800 +(3000 24/6) +(24/12* 500) + (24/12 450) (24/24 850)1175 +200 23925