The price and volume of electricity we generate is determined by competitive bids and offers in the wholesale electricity market.  The market is operated in real time by the System Operator (Transpower) and closely regulated and monitored by the Electricity Authority. They ensure market participants act fairly with competitors and customers. It’s important that the markets in which we operate are open, fair and efficient – benefiting consumers and contributing to our long-term success. Meridian only generates from renewable sources. All the electricity that we supply to our customers comes from the electricity grid, which mixes electricity supplied from both renewable and non-renewable sources.