For hundreds of years Maori have been using geothermal energy for cooking and washing. Then 50 years ago New Zealand scored a world first by building a geothermal plant using hot water and steam instead of only steam. Contact Energy generation engineer Chris Morris tells us what it's all about. We also visit Whakarewarewa Thermal Village where Justin Te Hau talks about the way Maori use geothermal power for their everyday needs.