Living in the Environment
Living in the Environment

Renewable gas will be part of Canberra’s clean energy mix


NOT all gases are the same. The ACT Government’s timeline for transitioning away from fossil fuels by 2045 is a perfect fit with the schedule for replacing conventional LPG with renewable, zero-emitting LPG.

“LPG is in a good place in the ACT,” Brett Heffernan, CEO of Gas Energy Australia, said today. “From as early as 2025 net-zero renewable LPG (rLPG) will be in the Australian market and will replace all conventional LPG by 2045.

“In addition to the ACT’s ban not applying to LPG, the huge benefit of rLPG is it’s a simple ‘drop-in’ replacement. That means no extra capital costs to homeowners, businesses or community groups using it. Existing cylinders, pipes and appliances require no changes.

“It’s a game-changer that negates the exorbitant costs of switching to electricity. If you have LPG you're perfectly positioned. Your existing appliances will be net zero over the same timeframe as electricity, without the expense and hassle of switching.

“And rLPG will go even further to deliver actual zero emissions via technologies that create a closed loop, taking CO2 from the atmosphere to make the same LPG molecule. When the gas is burned, the impact on the climate is zero. Unlike solar, wind and other renewables, rLPG will require no offsets at any stage in its production.

“Canberrans are already switching on to LPG. Since the ban on natural gas connections in new suburbs was flagged, LPG in-home installations have gone in at the rate of six per week.

“People like gas. And with it able to achieve zero emissions compared to electricity’s net zero, there’s even more reason to like it.

“While most people know LPG fires-up their BBQs, many are surprised that 2 million Australian households (22% of all homes) rely on it for in-home cooking, hot water and/or heating.

“With the independent Australian Energy Market Operator belling the cat on looming power shortfalls and potential major blackouts, rLPG will be an important complement to delivering reliable, affordable energy, while relieving pressure on an increasingly overburdened electricity grid.

“Residential case studies for NSW and Victorian LPG gas homes, over 830,000 dwellings in all, show the claims about electric appliances being better on costs and emissions are overcooked.

“Looking at appliance costs and energy bills, continuing with LPG remains lower cost for homeowners to the 2040s, when LPG and electrical appliance-use cost the same.

“Switching to the most efficient electrical appliances, households would incur $11,871 in upfront costs (appliance and installation), save a few hundred dollars over a year on bills, but would only reduce emissions by between 5.4kg (NSW) and 9kg (Victoria) per week. At best, that's the volume of typical BBQ cylinder.

“In NSW it would take 14 years for homeowners to get a return on that investment. In Victoria it's 12 years. It makes for very expensive carbon abatement at eight-to-20 times higher than the going rate for Australian carbon credits.

“Faced with these costs, families might opt for cheaper, though less efficient, electrical appliances thinking they're still doing the ‘right thing’. But they'd be wrong.

“Emissions from cheaper electrical appliances are actually higher than sticking with existing gas appliances – LPG or natural gas. In NSW the emissions increase in switching from gas to lower efficiency electrical appliances is 640kg per dwelling a year and in Victoria it's a whopping 960kg a year.

“This dispels the myth that electricity is, by default, cheaper and lower emitting than gas. But it gets worse.

“These costs are only for appliance replacement. What is often hidden from consumers are the additional costs as all-electric homes typically require upgrading from Phase 1 to Phase 3 wiring throughout. Depending on the size of the premises, these refit costs can run to $50,000 per dwelling.

“LPG's clear, commercially viable and relatively easy transition to zero emissions is a boon for customers and a breakthrough that smart governments will seize upon.”