Investigating the role of flexible electrical appliances in a demand charge grid tariff scenario - a Norwegian case study

The Norwegian grid tariff structure has changed, going over to capacity-based solutions to better reflect the actual grid-capacity used by the end-users. With monthly demand charge putting a price on highest peak-consumption, residential users need guidelines and tools on how they can influence their consumption pattern. With increased information on the consumption profile for different electrical appliances, they can shift their appliance activation to reduce peak consumption. This work looks at existing literature regarding electrical appliances and creates representative load profiles for these. These load profiles are used in a case study to see how load shifting on these appliances can be performed to reduce the demand charge grid tariff. By making use of the flexibility for several electrical appliances in terms of activation, the users can reduce their demand charge cost, leveling their consumption profile.

Inspec keywords: power consumption; tariffs; power grids; domestic appliances; power markets

Subjects: Electrical/electronic equipment (energy utilisation); Power system management, operation and economics; Domestic appliances