TITLE:
Performance-Economic and Energy Loss Analysis of 80 KWp Grid Connected Roof Top Transformer Less Photovoltaic Power Plant
AUTHORS:
S. Sathish Kumar, C. Nagarajan
KEYWORDS:
Photo Voltaic, Dual MPPT, Grid Connection, Performance Analysis, Energy Loss Analysis, Economic Analysis, CO2 Reduction, Carbon Credit
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.6,
May
11,
2016
ABSTRACT: In India most part
receives 4 - 7 kWh of solar radiation per square meter per day with 200 - 250
sunny days in a year. Tamilnadu state also receives the highest annual
radiation in India. In this paper, the grid connected photovoltaic plant has a
peak power of 80 KWp supplies electricity requirement of GRT IET campus during
day time (7 hrs) and reduces load demand and generates useful data for future
implementation of such PV plant projects in the Tamilnadu region. Photovoltaic
plant was installed in April 2015, monitored during 6 months, and the
performance ratio and the various power losses (power electronics, temperature,
soiling, internal, network, grid availability and interconnection) were
calculated. The PV plant supplied 64,182.86 KWh to the grid from April to
September 2015, ranging from 11,510.900 to 10,200.9 kWh. The final yield ranged
from 143.886 (h/d) to 127.51 (y/d), reference yield ranged from 201.6 (h/d) to
155.31 (h/d) and performance ratio ranged from 71.3% to 82.1%, for a duration
of six months, it had given a performance ratio of 83.82%, system efficiency
was 4.16% and the capacity factor of GRT IET Campus for six months was 18.26%.
Payback period in years = 9 years 4 months, energy saving per year = 204,400
KWh, cost reduction per year = 1,737,400, Indian rupee = 26,197.30 USD and
total CO2reductions
per year = 102,200 tons CO2/year.