The MEDiS Model
The Malaysia Energy Database and Information
System, MEDiS, is designed with the primary objective of generating the
country's energy balance. Data from energy suppliers and consumers are
collected, compiled and organized appropriately in a manner to produce the
energy balance.
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Energy Balance Model
The overall energy balance is based on the simple accounting of the country's
total energy input and the total output using a single unit for the various
forms of energy. All energy forms comprising, liquid and gaseous hydrocarbons,
coal, steam, hydro, electricity, biomass, solar, wind, etc, are converted into
the common unit of kiloton oil equivalent, ktoe, for the accounting of the
energy balance
For MEDiS, the forms of energy are termed as energy products or commodities.
Examples include, crude oil, natural gas, diesel, mogas, LPG, LNG, electricity
etc. The MEDiS engine is specifically designed to execute the complete
accounting of these energy products.
Input
Side
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Output
Side
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The data collected for the energy-input side of
the balance equation comprises:
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Beginning Stock
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Supply-Local Purchase
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Supply-Primary Production
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Supply-Foreign Imports
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The data collected for the energy-output of the
balance equation comprises:
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Ending Stock
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Own Consumption / Own Use
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Conversion Process
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Sales (5 distributor channels)
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Losses (5 loss categories)
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Component Data Balance Requirements
To achieve a completely balance situation for every component
in MEDiS, each energy data contributor will be required to submit their set of
energy data in the manner conforming to the input-output balance model
described above. Individual energy product imbalances will have to be captured
as Losses under any of the 5 categories (flaring, operational, storage,
transport, others) to be described later.
It is important that this low level balance is
achieved in the original units of measure (e.g. in kiloliters, metric tons or
kilobarrels) as some discrepancies is expected when all the original units are
converted into KTOE for all the energy products.
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