25 January 2016, Renew Economy, Tasmania grid struggles with drought, bushfires, lost connection. Tasmania’s electricity grid is facing its biggest challenge in years, with its hydro storage about to fall to its lowest levels ever, bushfires forcing the closure of some power facilities, and a faulty cable cutting the connection between the island and the country’s main electricity grid. The Apple Isle’s main source of electricity – hydro power – is being challenged by its driest ever spring, pushing reserves down to just 18.9 per cent. The lowest level ever is 16.5 per cent, reached in 2007, but overall storage levels are predicted to fall to a low of 14 per cent by the end of March – if normal rainfall patterns resume. At current rates, however, some fear they may fall below those levels, although there has been some light rain in recent days. To make matters worse, the Basslink cable linking the island’s grid to the mainland has been cut by technical problems, and will probably remain closed for another two months, while the raging bushfires have threatened power lines and forced the temporary closure of at least four hydro plants. “These circumstances are extraordinary and unprecedented,” Premier Will Hodgman and energy minister Matthew Groom said in a joint statement late last week. “It will be tough, but we will get through it.” To address the issue, the government has had to bring its Tamar Valley gas power generator – scheduled for permanent closure last year – out of mothballs. That has provided 280MW of added capacity, but the government is now looking to bring another 105MW of gas and diesel power back into the system to hedge against further depletion of its hydro resources. Read More here
Category Archives: Fossil Fuel Reduction
24 January 2016, Climate Home, 8 climate change takeaways from Davos. As global elite gather at the World Economic Forum1, moving to counter climate change competes with economic fears. It is the first major meeting of politicians and business leaders since 195 nations struck a landmark deal to limit carbon emissions in Paris in December. Thousands of luminaries have come to a Swiss ski resort to unpack the opportunities and challenges of the future. ‘Mastering the Fourth Industrial Revolution’ is the theme meant to guide high-powered panel sessions. Among talk of robotics, 3D printing and nanotechnology, the Paris agreement should merit mention. It aims to radically shrink the usage of fossil fuels, which the world consumes for 87% of its energy. Innovation is crucial to neutralise carbon emissions in the next half-century. As the forum nears its end, here’s what we conclude. 1. Market turmoil dominates” A global selloff of stocks has crowded out much discussion of a new global warming pact at the World Economic Forum. Markets have plunged more than US$4 trillion in value since 1 January – the worst start in yearly trading since the 2009 financial crisis – on weak Chinese growth and low oil prices. Opinion is divided on the impact of cheap crude on climate plans. Benchmark prices of $30 a barrel are “very detrimental for any [clean energy] policy”, according to Total chief Patrick Pouyanne. But analysts Climate Home asked are not worried. 2. Climate action is the smaller conversation: A climate change-induced disaster was named the greatest threat to the global economy in 2016, in a WEF survey ahead of the event, but that wasn’t fully borne out in discussions. Cutting carbon is an “issue for mainstream business, but of course not everyone is paying attention,” says Paul Simpson at the Carbon Disclosure Project. Read More here
21 January 2016, Climate News Network, Carbon capture plans need urgent aid. Call for governments to give financial backing for technology that could help save the world from overheating by preventing CO2 escaping into the atmosphere. Governments may no longer be investing in the capture of carbon dioxide in the atmosphere. But a new study says that doesn’t mean it’s a bad idea. It argues that the world just needs to think harder and spend more to make the technology work because, to contain climate change, it may prove the only realistic and affordable way to dramatically reduce carbon emissions. Many governments appear to agree, and include carbon capture and storage in their plans to keep the world from dangerous climate change, But, at the same time, many are abandoning many trials that are needed to make it work. David Reiner, senior lecturer in technology policy at the University of Cambridge Judge Business School, argues in the new journal Nature Energy that stopping trials is foolish. Effective answer In a world addicted to fossil fuel energy, but threatened with catastrophic climate change driven by the greenhouse gas emissions from those same fossil fuels, he says that one effective answer would be to capture the carbon dioxide before it gets into the atmosphere, and then store it. He writes that the only way to find out how to do this is to spend billions on a range of possible attempts at carbon capture and storage (CCS), and then choose the best one. “If we are serious about meeting aggressive national or global emissions, the only way to do it affordably is with CCS,” Dr Reiner says. “But, since 2008, we have seen a decline in interest in CCS, which has essentially been in lock step with our declining interest in doing anything serious about climate change.” Just before the UN climate change summit in Paris last December, the UK government cancelled a £1 billion competition to support large-scale demonstration projects. Since 2008, other projects have been cancelled in the US, Canada, Australia and Europe. Read More here
19 January 2016, Science Daily, One-stop shop for biofuels. First high-gravity one-pot process for producing cellulosic ethanol developed. The falling price of gasoline at the pumps may warm the hearts of consumers but it chills the souls of scientists who recognize that humankind must curtail the burning of fossil fuels to reduce the threat of climate change. Biofuels can help mitigate climate change and provide us with a sustainable source of transportation energy if yields and production costs are economically competitive. A major step towards achieving this goal has been achieved by researchers with the U.S. Department of Energy (DOE)’s Joint BioEnergy Institute (JBEI). Led by Seema Singh and Blake Simmons, JBEI researchers have developed a “high-gravity” one-pot process for producing ethanol from cellulosic biomass that gives unprecedented yields while minimizing water use and waste disposal. The process utilizes a combination of ionic liquid pretreatment, enzymatic saccharification, and yeast fermentation for the production of concentrated fermentable sugars that result in high-titer cellulosic ethanol. “High gravity” means high biomass loading — the higher the biomass loading, the lower the costs for converting it to fuels. Read More here