The town of Lunenburg has determined power rates will rise by 7.5 per cent for residents in the new year. However, the province's Utility and Review Board still needs to sign off on the figure. The URB recently approved an average rate increase for the five different classes in the town. Mayor Rachel Bailey says its never easy to raise power rates.Bailey says residents still pay about nine per cent less than Nova Scotia Power customers. The URB will confirm the exact numbers affecting Lunenburg by January 1st.