Gas pipeline company Firstgas is monitoring an Australian project that supplies a mix of 10 percent green hydrogen and 90 percent fossil fuel gas to households. They aim to introduce a green hydrogen blend to New Zealanders' homes pending regulatory approval. Green hydrogen, distinguished from 'grey' hydrogen derived from fossil fuels, is made using renewable electricity. Although green hydrogen has potential, using electricity directly for household appliances may be more efficient. The Australian facility also supports a 100 percent hydrogen bus and industrial facility. The plant quickly starts up during surplus low-cost electricity periods, utilizing renewable electricity to produce hydrogen. Challenges include appliance compatibility limitations with hydrogen mixes and the need for appliance replacement for 100 percent hydrogen use. Firstgas is planning a hydrogen blending pilot in New Zealand. The focus is on utilizing existing infrastructure in a low-carbon future. Green hydrogen's production relies on abundant renewable electricity, with options like offshore wind in consideration. Expert opinions suggest replacing grey hydrogen in factories as a primary use, followed by heavy transport and potentially aviation. However, electric appliances are seen as a more straightforward choice for household use to reduce energy loss and costs. Heat pumps are highlighted as an even more energy-efficient option for heating compared to standard appliances.