At Kopua Holiday Park in Raglan they can't always guarantee that the surf is up, but they can offer the sun on tap. That's because they've installed a large scale solar water heating system on their main kitchen and ablution block that delivers plenty of hot water when it's needed.
‘Biogas' - gas produced during the breakdown of organic matter - can be harnessed and used to provide heat, electricity and transport fuel. Biogas schemes help reduce greenhouse gas emissions and deal more effectively with effluent disposal on farms. This guide to biogas schemes is aimed at a farming audience, and includes practical examples.
By reducing their electricity needs and installing two small wind turbines, owners of this Canterbury tourist lodge have eliminated their power bill - and they're getting paid for the excess electricity they generate.