23 August 2016, The Conversation, Australia’s new focus on gas could be playing with fire. Gas is back on Australia’s agenda in a big way. Last week’s meeting of state and federal energy ministers in particular saw an extraordinary focus on gas in the electricity sector. While the meeting promised major reform for the energy sector, the federal energy and environment minister, Josh Frydenberg, highlighted the need for more gas supplies and “the growing importance of gas as a transition fuel as we move to incorporate more renewables into the system”. Gas is certainly a lower-carbon energy source than coal, but gas prices have soared as Australia begins shipping gas overseas. So what might this mean for energy and climate policy? Rising gas. In 2013-14 natural gas-fired generation rose to account for 22% of Australia’s electricity generation, although the figure falls to 12% in the National Electricity Market (NEM), which excludes Western Australia and the Northern Territory, both of which use a large amount of gas. Among the NEM states, South Australia relies the most on gas-powered generation. This means that gas generators generally set the state’s average electricity price, which has usually been higher than those in the eastern states. Average electricity prices in Victoria, New South Wales and Queensland tend to be set more often by coal power generators than by gas. Read More here
Yearly Archives: 2016
22 August 2016, Washington Post, A widening 80 mile crack is threatening one of Antarctica’s biggest ice shelves. For some time, scientists who focus on Antarctica have been watching the progression of a large crack in one of the world’s great ice shelves — Larsen C, the most northern major ice shelf of the Antarctic peninsula and the fourth largest Antarctic ice shelf overall. Larsen C, according to the British Antarctic Survey, is “slightly smaller than Scotland.” It’s called an ice “shelf” because the entirety of this country-sized area is covered by 350-meter-thick ice that is floating on top of deep ocean waters. The crack in Larsen C grew around 30 kilometers (18.6 miles) in length between 2011 and 2015. And as it grew, also became wider — by 2015, yawning some 200 meters in length. Since then, growth has only continued — and now, a team of researchers monitoring Larsen C say that with the intense winter polar night over Antarctica coming to an end, they’ve been able to catch of glimpse of what happened to the crack during the time when it could not be observed by satellite. The result was astonishing. The rift had grown another 22 kilometers (13.67 miles) since it was last observed in March 2016, and has widened to about 350 meters, report researchers from Project MIDAS, a British Antarctic Survey funded collaboration of researchers from Swansea and Aberystwyth Universities in Wales and other institutions. The full length of the rift is now 130 km, or over 80 miles. Read More here
22 August 2016, The Conversation, New modelling on bushfires shows how they really burn through an area. Bushfires in Australia can have a devastating impact on an environment and destroy homes and lives, so any effort to prevent them is a welcome move. But the way that we have traditionally understood bushfires and forest flammability in Australia is not up to the challenges of our changing climate. Thankfully, a new approach is making sense of the confusion by looking at the plants themselves. Unfortunately though, time is running out. Years ago I could stand on a ridge in the mountains as winter gales roared through the Alpine Ash forests on the slopes below me. There’d be black cockatoos on the wind and the first hard snow flakes rattling on my coat. It was a wildness that stung the eyes with raw beauty. Sadly those forests are dying. They are being burnt so often that they may be gone by the end of the century. Like the tallest hardwoods in the world and the thousand year old King Billy pines of Tasmania, they are places we have no room for in our fossil fuel economy. It’s not that fire is bad; our forests need it. But it’s coming so hard and fast in this changing climate. We fight the fires and we manage the fuels as best we can, but our best efforts are only as good as the science they are built on, and there are some hard questions to be asked about that science. Read More here
22 August 2016, Renew Economy, Gas bubble looms as energy ministers baulk at zero emissions target. State and federal energy ministers hailed progress they made in their COAG Energy Council summit late last week, but they may have condemned Australia to another great big investment bubble – this time in gas infrastructure. The meeting of ministers – brought forward by the apparent energy “crisis” in South Australia – resulted in a couple of promising steps that may help contain price surges of the type seen in recent months, but it seems to have ducked action on the critical issues. On the plus side, there is the creation of two new gas trading hubs that might improve transparency into a notoriously opaque market, and the potential for a new electricity inter-connector linking NSW and South Australia to be bought forward. But elsewhere, not a lot of tangible progress was made. The ministers baulked at calls to write zero net carbon emissions into the electricity market goals, despite that being implicit in the Paris climate goals that Australia has signed up to.And if the energy ministers did avoid turning the meeting into an anti-renewable jihad – as they were lobbied to do and might have been tempted under a previous federal energy minister – they did come face to face with some of the significant barriers to the rapid transition to a low emissions grid that they profess to support. One such example came from the Australian Energy Market Operator, whose chairman Anthony Marxsen stunned the audience on Friday when he suggested during a presentation that battery storage technology could be up to 20 years away from making a commercial contribution. Some dismissed this as garbage and a plug for the gas industry. AEMO is 40 per cent owned by industry “players”. Another is the painfully slow progress from the main policy maker, the Australian Energy Market Commission, which has been dragging out crucial rule changes most people believe are essential to moving to new technologies. Read more here