Customer dissatisfaction index (CDI) : pilot use in network planning

• The Customer Dissatisfaction Index (CDI) concept, developed in 2006 by Vattenfall and STRI [1], introduces the service level compliance put into figures in network planning. By using the performance in a load point and the probability that a preset "dissatisfaction" level of security of supply is not fulfilled, it presents a more understandable customer focus. This was presented in an earlier CIRED report. [4] A pilot network planning case in a rural network in Finland near Jyväskylä has been performed as a pilot. Two different levels of satisfaction criteria has been used one for domestic customers (max 8 hours or 3 interruptions) and one for preferred customers such as industry, hospitals, nursing homes, supermarkets etc. (max 1hour or2 interruptions) (fig 1) The planning has been performed using Tekla X-power and utilizing the newly developed RNA reliability calculation module. In the project the use of CDI is compared to the use of the index KAH (Customer outage cost). The planning uses 4 different scenarios and compares the KAH CDI and economics. SAIDI SAIFI and different CDI indices are also compared. (Fig 4) The project shows that CDI gives valuable contributions to the evaluation of different planning alternatives and will be further used.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

Electric Power Engineering

Elkraftteknik

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