Large customers buy directly on electricity markets at hourly market price, or have direct power purchase agreements with power suppliers. Most small customers

Large customers buy directly on electricity markets at hourly market price, or have direct power purchase agreements with power suppliers. Most small customers are paying using average prices, but these average prices are calculated from the costs of power suppliers and these are affected by hourly market prices. So when many small customers consume use lot of electricity during hours with high hourly market price, the average price for small customers goes up. Best solution is instalation of smart meters so that small customers pay according to hourly market price.