8 December 216, The Guardian, Why electric cars are only as clean as their power supply. Experts argue whether electric cars are worse for the environment than gas guzzlers once the manufacturing process and batteries are taken into account. Jorge Cruz has just finished his overnight shift stacking shelves at Whole Foods in Los Altos, California, and is waiting at the bus stop outside. Like much of Silicon Valley, there’s a regular flow of Tesla, BMW, Nissan and Google electric cars that cruise past from their nearby headquarters, and Cruz rather likes them. “I really wouldn’t mind having an electric car,” he says, though his first choice is probably a Honda or an Acura. Regardless, for now, he rides the bus. “I need to save up for a car,” he explains. As Cruz waits, a newly purchased Tesla zips by, advertising “ZERO EMISSIONS” on its license plate. Electric cars have never been closer to the mainstream, the market pushed ahead by California subsidies for electric car buyers, and a wide array of new models from established car firms such as Toyota and Chevy. Tesla’s focus on luxury, high-performance vehicles has also broadened their appeal; electric cars are no longer purely an environmental statement, but a tech status symbol too. Yet the “zero emissions” claim grates on some experts, who have continued to argue over whether electric cars are really more environmentally friendly than gas guzzlers, once the manufacturing process for the vehicles and their batteries are taken into account. Read more here
Category Archives: Fossil Fuel Reduction
5 December 2016, The Guardian, Australia is blowing its carbon budget, projections reveal. Australia’s greenhouse gas emissions are rising despite global reduction efforts, according to detailed projections made by the consultants NDEVR Environmental. Australia’s emissions jumped by 2.56m tonnes in the three months to September, putting them 1.55m tonnes off-track compared with commitments made in Paris, and 4.06m tonnes over levels demanded by scientifically based targets set by the government’s Climate Change Authority. Emissions for the year to September are above those for the year to September 2015. The results mean Australia has emitted about twice what is allowed by the CCA’s carbon budget since 2013. In the three years and nine months to September 2016, the country emitted 19.8% of its share of what the world can emit between 2013 and 2050 if it intends to maintain a good chance of keeping warming to below 2C. If Australia continues to emit carbon pollution at the average rate of the past year, it will spend its entire carbon budget by 2031. Projected to the current second, the graphic shows how much of the carbon budget has been spent. Read More here
30 November 2016, The Conversation, Will the latest electricity review bring climate and energy policy together at last? The Australian government is reviewing our electricity market to make sure it can provide secure and reliable power in a rapidly changing world. Faced with the rise of renewable energy and limits on carbon pollution, The Conversation has asked experts what kind of future awaits the grid. Australia’s National Electricity Market (NEM) is under review following the state-wide blackout that hit South Australia in September. The review, led by Chief Scientist Alan Finkel, will “develop a national reform blueprint to maintain energy security and reliability”. Importantly, the Council of Australian Governments (COAG) specifically agreed that the review would consider Australia’s commitment under the Paris climate agreement, and how climate and energy policy can be integrated. Before we consider how the NEM might need to change, it is important to understand how it came about. State responsibility Electricity supply began as a state responsibility. Originally, state-based utilities owned and operated the entire supply chain, from generation to transmission, distribution and retail. With the exception of the Snowy Hydro Scheme, there were no interstate transmission lines. Accessibility and affordability were (and still are) key concerns for the states. As such, electricity prices were equal for all citizens, irrespective of their location or the actual cost of bringing electricity to them. This is still partly reflected in network tariffs today. In the late 1980s, concerns about rising costs to government, but also a worldwide ideological move towards privatisation of public services, drove a shift away from publicly owned utilities. This began with a New South Wales inquiry, which found that NSW could avoid billions of dollars in new investment by connecting its network with Victoria. This set the scene for the development of a more interconnected grid and more general reform. In particular, this was followed by a report from the former Industry Commission in 1991 and the Hilmer Reviewon National Competition Policy in 1993. These reports were dominated by market logic. They argued that competition would make the system more efficient. Governments specifically agreed to reforms that would lead to a fully competitive national electricity market. This involved breaking up and selling the three layers of the electricity sector: generation, networks and retail. Read More here
18 November 2016, Energy Post, Why the future belongs to decentralised renewables, not centralised hydrogen and giga-scale nuclear. What the future of our energy system will look like continues to be a subject of heated debate. According to one well-established tradition, writes Professor John Mathews of Macquarie University in Australia, the route to decarbonisation will run via massive nuclear power systems to the hydrogen economy. But China and to some extent India are emerging as the principal practitioners of an alternative vision of energy growth, underpinning their vast industrialisation efforts with conventional renewables that are the products of manufacturing. According to Mathews, the world is much more likely to follow the second route. Renewables, he argues, are benign, provide energy security, create jobs and above all are the least expensive option. How we envision the future of our energy systems is important as this tends to drive our policies and decisions. In a new scientific paper, “Competing principles driving energy futures: Fossil fuel decarbonisation vs. manufacturing learning curves”, published this month in the journal Futures, I contrast two broad energy visions. Read More here