Abstract
The main purpose of the present study is to develop a simple yet proper top-down model for forecasting the energy demand of the residential and commercial sectors in Iran. This model can be used as a tool of scenario analysis to predict the emerging energy demand in future. The proposed model would be systematically developed and selected based on various quantified exogenous variables. For this purpose, a certain model out of a collection of 41,472 parallel models with different inputs and dynamics is chosen as the most appropriate model. According to the logical conjunctive relationships between the variables, the structure of all competing models is established to log-linear. Different possible combinations of various measures for the exogenous variables generate parallel models. Then, an automated fuzzy decision-making (FDM) process determines the best model. Finally, defining several scenarios, the energy demand of the residential and commercial sectors in Iran for the period of 2013 to 2021 is forecasted. The results showed that despite of de-subsidization, which is included by a dummy variable, the energy demand will grow by an average rate of about 3 % annually.
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Notes
Since 1980 till present, the average 10-year share of industrial sector from total value added of the country has been increased by almost 10 % each decade.
Kwiatkowski–Phillips–Schmidt–Shin test
Abbreviations
- AAEP:
-
Average absolute error percentage
- BIRR:
-
Bilion Iranian Rials
- BLD:
-
Book value of active buildings [104 BIRR]
- BU:
-
Bottom-up
- D:
-
Differencing operator
- DC:
-
Dynamicity criterion or the property index for the dynamics of a model
- DUM:
-
Dummy variable
- ER:
-
Energy consumption by the residential and commercial sectors [MTOE]
- FIT:
-
Fitness of simulation
- FPE:
-
Akaike’s final prediction error
- GT:
-
The global Student t statistics
- HNT:
-
Household number [million persons]
- HVAC:
-
Heating, ventilation, and air conditioning
- INVC:
-
Gross fixed capital formation (investment) for the constructions [104 BIRR]
- JB:
-
Jarque-Bera tests of normality
- KBLD:
-
Cumulative sum of BLD [104 BIRR]
- KCD:
-
The same variable (KCT) calculated considering a 5 % annual depreciation rate
- KCT:
-
Total capital invested for buildings (constructions) [104 BIRR]
- L:
-
Logarithm
- LB:
-
Ljung-Box independence statistics
- LBR:
-
Labor [million persons]
- MTOE:
-
Million (metric) tons oil equivalent
- OLS:
-
Ordinary least squares
- ONE:
-
A vector of “ones” with an appropreate dimension
- PAPL:
-
Electrical and fuel appliance price index; PAPL(1997) = 1
- PDF:
-
Possibility distribution function
- PEM:
-
Prediction error method
- PFC:
-
Consumer energy (fuel) price index; PFC(1997) = 1
- PFPG:
-
Energy price index adjusted (deflated) by the general price index; PFPG(1997) = 1
- PNL:
-
Population minus the labor [million persons]
- PO:
-
Population [million persons]
- PP:
-
Prediction power
- PS:
-
Power spectrum
- P th :
-
Norm of covariance matrix of the parameters
- R 2 :
-
Adjusted explanatory power
- SP:
-
Simulation power
- TD:
-
Top-down
- T min :
-
The least Student t statistics among all
- U(x):
-
The utility function
- VAN:
-
The total value added minus that of the oil sector [103 BIRR]
- VAT:
-
Value added of all economic sectors (total value added) [103 BIRR]
- YNI:
-
The national income [103 BIRR]
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The authors are thankful of the private company Idam Consulting Group (ICG) and the Institute for Research, Environment and Sustainability (IRES), UBC, for their supports.
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Shakouri G., H., Kazemi, A. Selection of the best ARMAX model for forecasting energy demand: case study of the residential and commercial sectors in Iran. Energy Efficiency 9, 339–352 (2016). https://doi.org/10.1007/s12053-015-9368-9
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DOI: https://doi.org/10.1007/s12053-015-9368-9