Gas is changing

Clarus believes renewable gas has a big part to play in New Zealand’s energy future and we're right behind it.

Clarus Energy Future home

At Clarus, we want New Zealanders to continue enjoying the benefits of gas while keeping New Zealand clean and green.

Thanks to extensive research and close monitoring of international efforts, we’re planning our route towards distributing cleaner, more energy efficient renewable gas including green hydrogen, biogas and bioLPG.

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Food waste accounts for a large portion of global greenhouse gas emissions. When we discard food waste through unsustainable methods, we also compromise our water resources, intensify pollution, accelerate soil erosion, and threaten biodiversity.

Anaerobic Digestion (AD) is a natural process where micro-organisms break down organic waste such as food scraps. This produces two valuable resources; biogas and digestate. Biogas can be used for a number of applications to generate energy, produce clean bio-fertiliser and provide valuable BioCO2.

Ecogas is working with Clarus company First Renewables in the first New Zealand project to upgrade the biogas into Biomethane and BioCO2. The biomethane will be injected into the gas grid as a renewable form of energy for residential and industrial supply, to generate enough energy to annually power up the equivalent of around 7,200 households* in the region. The BioCO2 will be used to offset the needs of both T&G glasshouses and the wider food and beverage industry.

*7,200 houses at an average residential gas demand of 22GJ p.a. = 160TJ p.a. (estimated annual biomethane injected at Broadlands).

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The future of bioLPG

BioLPG is chemically identical to Liquefied Petroleum Gas (LPG), but with a lower carbon footprint.

Liquified petroleum gas, or LPG, is used in thousands of homes and businesses across New Zealand and particularly in the South Island. Many homes use 45kg LPG bottles to fuel their gas fires and hot water cylinders – providing instant heat all year round- as well as 9kg bottles to fuel the barbie.

New Zealand uses around 185,000 tonnes of LPG annually. While LPG is only meeting a tiny fraction of our total energy requirements and emits much less carbon dioxide than other fossil fuels, it still contributes to our national greenhouse gas emissions. By switching to bioLPG (also known as renewable LPG or rLPG) we can reduce our emissions which helps New Zealand transition to a future with net zero carbon emissions.

The development of bioLPG is an exciting area for research and development, and one that Clarus continues to support. As a member of GasNZ, Clarus is supporting studies into bioLPG across the industry. We’re also looking into bioLPG as an alternative low carbon product for our customers.



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We’re planning NZ’s first Hydrogen blend pilot

Hydrogen is a cleaner alternative to natural gas. It can be produced by electrolysis, which is the process of using electricity to split water into hydrogen and oxygen. If the electricity is generated using renewable resources, like wind and solar, then the process creates no new carbon emissions, and the hydrogen produced is “green” hydrogen.

Clarus is working on a project to blend a small amount of hydrogen with natural gas in our Firstgas pipeline network. While this is already happening in Australia and Europe, it would be a first for New Zealand and we hope to commence our Hydrogen Blend Pilot in the coming months. 

Watch our video to learn more about our plan to convert our gas pipeline by 2050.

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