A gas lobby group launched today is calling on the government to form a national energy strategy to help the industry move into renewables, such as hydrogen and biogas.
Future Sure spokesperson Cameron Jardine said New Zealand would look to overseas markets to develop the technology required to produce the new types of gas, before deciding the best way to produce them domestically.
He said a framework was needed first though, to make sure investment was successful.
"Ultimately, we're looking for government and the regulators to give us the framework that allows these investments into future gases... We need that plan so that everyone can continue to invest and to achieve our targets."
He said gases would start to "blend" in 2025, with most modern appliances able to handle up to 20 percent renewable hydrogen gas, mixed with natural gas.
"What blending allows is for us to go in the early years, maybe 5 percent or 10 percent of the total gas coming from renewable sources and then over time, we'll get more and more of our gas coming in from these renewable sources.
"So blending really works from two parts, it allows the industry to start to introduce it gradually, but it also allows consumers to use it and their current appliances and then over time they will upgrade to new appliances."
He said testing was underway to see how compatible the existing gas network was with the new gases, but it was believed to be suitable.
Hydrogen would likely be the big replacement for natural gas, while bio alternatives, such as fuel made from fat and wood chips would replace LPG.
He said ultimately the products would all be produced domestically.
The group was set up by the industry as a way to communicate with consumers about the changes to the sector.
"More than 450,000 households and businesses use gas every day. If you use gas for cooking, heating, or manufacturing, our message is the flame isn't going out.
"If you own an appliance that uses today's gas, you can use it in confidence for the rest of its expected lifetime," Jardine said.