Solar energy and the concept of passive solar architecture are being increased in several areas to attain the net-zero energy concept. This paved the way for an increase in the need of solar irradiance forecasting for both solar PV applications and Passive Solar Architectural buildings. First, solar irradiance forecasting was done with 131 400 data sets (1-h data for 15 years) which was split into monthly mean for every year. This model was evaluated by forecasting the post-consecutive years one by one with the pre-consecutive years which includes the pre-forecasted years. This model was shown to have RMSE values of 11% to 24% for various seasonal forecasting using the Random Forest Algorithm in WEKA, which gave the annual irradiance results nearer to the PV Sol energy forecasting results. The R-value was in the range of 0.8 to 0.9 for various seasons which is good. Building Energy Optimization was carried out using BEopt 2.8 software designed by NREL. The chosen building was set to the standard parameters in India, and then, the optimization was done with various customized parameters and systems available in India to reduce the energy consumption from 192.2 MMBtu/yr to 109.1 MMBtu/yr with a 7 kW Solar PV System to attain the net-zero energy concept.
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Research Article|
June 01 2018
Solar irradiance forecasting and energy optimization for achieving nearly net zero energy building
A. Naveen Chakkaravarthy;
A. Naveen Chakkaravarthy
1
Department of Electrical Sciences, Karunya Institute of Technology and Sciences
, Coimbatore 641114, Tamil Nadu, India
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M. S. P. Subathra;
M. S. P. Subathra
1
Department of Electrical Sciences, Karunya Institute of Technology and Sciences
, Coimbatore 641114, Tamil Nadu, India
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P. Jerin Pradeep;
P. Jerin Pradeep
1
Department of Electrical Sciences, Karunya Institute of Technology and Sciences
, Coimbatore 641114, Tamil Nadu, India
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Nallapaneni Manoj Kumar
Nallapaneni Manoj Kumar
a)
2
Faculty of Electrical and Electronics Engineering, Universiti Malaysia Pahang
, 26600 Pekan, Pahang, Malaysia
a)Author to whom correspondence should be addressed: nallapanenichow@gmail.com
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a)Author to whom correspondence should be addressed: nallapanenichow@gmail.com
J. Renewable Sustainable Energy 10, 035103 (2018)
Article history
Received:
April 11 2018
Accepted:
April 23 2018
Citation
A. Naveen Chakkaravarthy, M. S. P. Subathra, P. Jerin Pradeep, Nallapaneni Manoj Kumar; Solar irradiance forecasting and energy optimization for achieving nearly net zero energy building. J. Renewable Sustainable Energy 1 May 2018; 10 (3): 035103. https://doi.org/10.1063/1.5034382
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