Hello Vera, Thanks for your question. Wholesale energy prices often increase in the colder months because consumption levels are at their highest. In addition, any slight global influence in the marker is more keenly felt. For instance the wholesale market, winter delivery, has risen sharply over the last week because of technical issues in Qatar. You can follow market movements through http://www.npower.com/Corporate/Risk-management/Market-update/index.htm We do offer a steady payment for customers, through monthly direct debit. A flat cost each and every month. You pay the same in the winter as you do in the summer, the overall cost is dependent on the amount of energy you use over 12 months.
