Quality of life (QoL)

modelling in terms of energy

consumption

Reza Nadimi

PhD student

Supervisor: Professor Koji Tokimatsu

Tokyo Institute of Technology

Outline of Presentation

• Observable variables

• Latent Variable (QoL)

Factor Analysis

• QoL Indicator

• Ecpc/Elcpc

Sigmoid Function

• World countries Classification

• QoL variation against Energy usage

Model Application

Non-Linear Function

Linear Function

QoL Indicator Sigmoid Model Model Application

Research scopeNo. of Country: 112

Year: 2005-2013

Variables: Observable VS Non-observable

Energy Consumption

Qo

L

?

QoL Indicator Sigmoid Model Model Application

Variables

Economy

GDP GNI

Health

IMR IWA LEB

Education

MYS

UnitCurrent US $

(Per Capita)

Log10(…)

Deaths (0-1 year)/

1000 live births

Year%

QoL Indicator Sigmoid Model Model Application

Factor Analysis (fa)

Q.L fa(six variables) = f ( GDP, GNI, IMR, IWA, LEB, MYS)

Data Normalization via Feature Scaling

Correlation Matrix

Factor Loadings (Eigenvector*Square Root (Eigenvalue) )

QoL Indicator Sigmoid Model Model Application

Q.L fa(six var.) = f11 * GDP + f21 * GNI + f31 * IMR + f41 * IWA + f51 * LEB + f61 * MYS

Q.Lfa (…)

fP1 : Factor Loadings with the Highest Eigenvalue

QoL Indicator Sigmoid Model Model Application

Q.L fa(6 Var.) = 0.916*GDP+0.921*GNI- 0.920*IMR+ 0.749*IWA+ 0.900*LEB+0.814*MYS

(Year 2013)

Q.Lfa (six var.): Normalization via Feature Scaling

Energy Consumption

Qo

L I

nd

ica

tor

Model?

Variables

QoL Indicator ECpc

(Energy Consumption per

capita)

Elcpc (Electricity

Consumption per capita)

Unitkg of oil equivalent

per capita

Log10(ECpc)

%kWh per capita

Log10(Elcpc)

QoL Indicator Sigmoid Model Model Application

Sigmoid Function (Sig)

QoL Indicator Sigmoid Model Model Application

(Year 2013)

2.1968

QoL Indicator Sigmoid Model Model Application

{Residential,

Industry,

Transport}

{Industry,

Residential,

Transport}

{Transport,

Industry,

Residential}

QoL Indicator Sigmoid Model Model Application

Commercial?Energy

Poverty

Eco-

Efficiency

Eco-

Sufficiency

HD

I

ECpc (kg of oil, 2007, Source: GEA)

Energy Consumption Pathway

Co

nsu

mp

tion

Rate

Thanks for your attention