Revision as of 11:07, 2 June 2010 by
***** (***** | *****)
Standard kWh meter
Advantages
 Digital meter. Its price is about 120-150 USD |
 Standard kWh meter. Its price is about 40-50 USD |
- technique is "state of the art"
- billing is fair and transparent
- reading can be uncoupled from tariff collection
- allows amount and time related tariffs (demand steering)
Disadvantages
- high costs (metering device)
- especially at rural areas in dev. countries the investment cost for a meter unit are way out of range
- dis- and re-connection in case of late payment
Digital meter. Its price is about 120-150 USD
|
Standard kWh meter. Its price is about 40-50 USD
|
|}
- technique is "state of the art"
- billing is fair and transparent
- reading can be uncoupled from tariff collection
- allows amount and time related tariffs (demand steering)
Disadvantages
- high costs (metering device)
- especially at rural areas in dev. countries the investment cost for a meter unit are way out of range
- dis- and re-connection in case of late payment
Pre-paid system with coins or cards
Pre-paid system with coins or cards. Its price is about 40-80 USD
Advantages
- fair and transparent
- no meter reading
- no overdue costs
- no costs for dis- and re-connection
- close to “ability to pay”-variations
- coins less expensive than cards
Disadvantages
- relatively high cost for metering device
- less forgery proof
- costs for re-collection of coins and selling system for coins/cards
Current limiter
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Current limiter. The price may be less than 5 USD
Advantages
- simultaneously protecting against overcurrent (actual purpose)
- delimiting peak demand
- no meter reading required; flat rates according to max. amperage
Disadvantages
- danger of fraud and theft of switch fuses
- additional costs for replacement of cut out fuses
- time of usage not considered; less fair
Flat rate
Advantages
- very cheap (no metering or delimiting device)
- especially in rural areas of Indonesia quite common and accepted
- can be combined with number of appliances or installed wattage (social control)
Disadvantages
- provokes waste of electricity, no incentive for saving
- no load control / demand steering possible (peaks)
- less fair
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