The poster slide presented at DOES meeting 2015, Yangpyeong, 2015. It explains energy distance and greenhouse gas emissions of power grid briefly.

1. Santiago
Cautin
Concepcion
Chanaral
▲
▲
▲
▼
i : a substation node
j : a power plant node
aij: electricity supply from j to i
dij : transmission distance from j to i
nhd(i) : neighbor nodes of i
Edi : energy distance of i
i
j Power plant
Substation
Transmission
distance dij
Electricity
supply aij
Edi =
f (aij ,dij )
j∈nhd(i)
k
∑
f (aij ,dij )
j∈nhd(i)
k
∑
i=1
n
∑
Transmission load
Department of Energy Science, SKKU
Network Analysis on Electric Power Grid for
Environmental Impacts allocation
Heetae Kim, Petter Holme
BK21 Workshop, 5~6 Feb. 2015, Daemyung Resort, Yangpyeong
Abstract
g CO2/ kWh GWh
0.006 325
0.266 13,450
0.157 7,946
0.285 14,385
0.027 1,358
0.020 1,013
0.239 12,072
Greenhouse gas (GHG) emissions of
Chilean electric power system
= 23.02 Mt CO2-eq
Transmission
distance
Electricity
consumption
1200 MWh 4000 km0 0
Electricity consumption causes environmental impacts such as
greenhouse gas emissions. If one is responsible for environmental impacts
of the electricity consumption, how should the impacts be allocated?
In this study, we introduce a method of environmental impacts allocation.
At first, we use life cycle assessment to estimate the total greenhouse gas
emissions of electric power system. Then, we apply network analysis to
calculate the comprehensive system load of electric power system for
each user. Finally, the environmental impacts of each user are calculated
considering both transmission distance and the amount of consumption.
Environmental impacts
References and acknowledgement
Standard LCA protocol, ISO 14044, ISO (2006)
CDEC-SIC Annual report (2014)
Lo, K. L. et. al (2007) Generation, Transmission & Distribution, IET. 1(6) 904-911
Newman, M.E.J. (2010). Networks: An Introduction. Oxford, UK: Oxford University Press.
National Research
Foundation in Korea
Contact
Kim Heetae
kimheetae@gmail.com
Ph.D. candidate
Energy system / Network analysis / Life cycle assessment
50km
676
66000
kt CO2
30000
Result Conclusions
by energy distanceby consumption
Regional greenhouse gas emissions allocated
Network analysis on electric power grid
↳ Useful complement to LCA analysis
Transmission load adjusted allocation
↳ Consider both of electricity consumption
and transmission distance
Re-allocate environmental impacts to users
↳ Life cycle assessment on GHG emissions
↳ Energy distance analysis
↳ Make the fair allocation possible
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