Electric Tariff

8/6/2019 Electric Tariff

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Electric tariffElectric tariff


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Electric tariff

Filled by each electric company and approved in itsfiled form or as modified after rate hearing by theregulatory body

Each tariff has two sections : rules and regulations conditions under which a utility willsupply power to customer (billing practices, ROW,metering, pf)

rate schedules the prices for electric service to differentclasses of customer (usually residential, commercial,

industrial, street/area lighting)


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Rate structure elements

kilowatt demand (KW)

energy (kWh)

the power factor

the load factor also affects the utility bill (ratiobetween average and peak of KW demand)

a fuel or energy adjustment charge


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Rate forms

Declining block rate: the rate for the first KW

and KWH block is billed at the higher rate.

Usually not more that4

blocks.>> When we use? as a customers

consumption increased, the relative cost to

provide the electric service decreased

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Is it possible in Indonesia use that kind of rate?


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Reality

Kenaikan harga BBM menyebabkan pelanggan besar (Industri/Bisnis) mengalihkan

beban dari pembangkit sendiri ke sumber listrik PLN.

Kenaikan beban oleh karena peralihan beban Industri/Bisnis menyebabkan beban

pembangkit PLN meningkat, terutama pada waktu beban puncak.

Kenaikan beban memaksa PLN harus mengoperasikan seluruh pembangkit agar tidak

padam, termasuk harus mengoperasikan pembangkit berbahan bakar minyak dan

kurang efisien.

Kebutuhan BBM untuk operasional pembangkit PLN meningkat sehingga biaya

produksi per kWh meningkat walaupun harga beli BBM oleh PLN masih harga subsidi.


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Rate forms

Demand energy rates

>> Base on the ratio between the average KW

and peak KW and KWhThe larger the ratio and the more KWh are

billed in the lowest energy block the lower a

power bill becomes


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Rate forms

Seasonal rates : to discourage wasteful use ofelectricity in the peak seasons. Also called as ratchetclause (ketentuan yg merugikan/ perangkap)encourage a large customer to use demand control or

load management techniques during the peak season.

Time-Of-Day/ Time-Of-Use rates : the charge for aKW or KWh is less for time periods other than peak

for the utility. Utility has on peak, off peak ,shoulder and weekend rates.


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an example


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TOTAL

INDUSTRI

MW

WBP

JAM

2218 2400 06 12

BISNIS

RUMAH T

PUBLIK

in Indonesia


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Rate forms

Interruptible rates : a rate based on the premisethat the utility turns offthe electric supply to afacility under predetermined circumstance or

agreementCurtailable rates : the customer makes

predetermined, voluntary load reductions upon

request by the utility.

Interruptible rates < Curtailable rates


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Proposed electric rate structures

Flat rates all users pay the same for allkilowatthours used

Marginal rates (Marginal Cost Pricing/MCP) charge

each customer based on the actual added cost Lifeline rates lower bills of low users of electricity

who are assume to have low income

Inverted rates the unit cost would rise with higher

usage

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Calculating the cost of electricity


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Riders


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calculations


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Electric Tariff

Documents