18 October 2016, Renew Economy, Abbott all over again? Coalition ramps up attack on renewables. The Coalition attacks against renewable energy in the last few weeks have reached their highest peak since the early days of the Abbott government, when the former prime minister hired a climate denying corporate leader to “review” the renewable energy target and try to have it scrapped. It managed “only” to reduce the target by around a third, but the uncertainty it created still succeeded in bringing the industry to a halt: so much so that since Abbott’s election in September 2013, only one large-scale project has escaped the snare – the 175MW White Rock wind farm that is being built by the deep-pocketed Chinese turbine manufacturer Goldwind. All other projects that have been, or are being built, with finance or grants from institutions that the Coalition has spent much of the past three years trying to dismantle, such as the Australian Renewable Energy Agency, or thanks to state-and territory-based targets (such as the ACT’s) that the federal government is now trying to destroy. The new campaign against state-based renewable energy targets – and the deployment of its most potent weapon, policy uncertainty – has reached a new intensity since the blackout in South Australia and the release of an independent report into Queensland’s 50 per cent renewable energy target for 2030. The Murdoch media have dutifully switched into relentless attack mode. The Courier-Mail ran three opinion pieces demonising the renewable target over the weekend, and The Advertiser in Adelaide and other Murdoch media have been full of anti-renewable commentary. The Australian mothership has followed suit, quoting the usual assortment of vested interests and Coalition politicians about what a disaster high levels of renewables would be. Read More here
Category Archives: Solar
5 October 2016, The Conversation, Lessons from South Australia’s blackout: we need to make infrastructure more resilient to climate change. Last week’s storm and subsequent state-wide blackout in South Australia reminds us how important the electricity grid – and other infrastructure – is for our communities. Immediate analysis suggests the blackout was caused by the collapse of transmission infrastructure in South Australia. Australian electricity networks, like most transmission networks worldwide, rely on above-ground conducting wires held aloft by large towers. Some of these towers were blown over in the South Australian event. While the storm hasn’t yet been specifically linked to climate change, it also serves as a reminder of the increasing challenges of delivering essential services in a more variable climate and slowing economy. Power, water, transport, health, defence and communications infrastructure can be exposed to climate variability and change simply because of their long lifetimes. Therefore, many if not most owners and operators of essential infrastructure have commissioned climate vulnerability and adaptation studies. There are many good examples of adaptation. For instance, Queensland Urban Utilities, the major water distributor and retailer in south-east Queensland, is implementing a large program to make the water and wastewater delivery network more resilient to flooding. But there is increasing recognition among climate adaptation researchers that many of the recommendations from climate adaptation studies aren’t being adopted. This is sometimes referred to as the “plan and forget” approach to climate adaptation and it leaves critical infrastructure vulnerable to weather extremes. Read More here
5 October 2016, The Guardian, SA blackout due to ‘transmission system faults’ in extreme weather, report finds. Energy economist says preliminary report makes clear South Australian event was ‘a transmission failure, not a generation failure’. The Australian Energy Market Operator has pointed to South Australia’s extreme weather last week as the prime cause of “multiple transmission system faults”resulting in a statewide blackout. In a preliminary report the regulator cites severe weather as the factor triggering the transmission system failures “including, in the space of 12 seconds, the loss of three major 275kV transmission lines north of Adelaide.” In addition to the transmission lines, Aemo notes in the late afternoon, after “multiple faults in a short period”, 315mW of wind generation disconnected, which affected the region north of Adelaide. It says that uncontrolled diminution in power generation “increased the flow on the main Victorian interconnector [Heywood] to make up the deficit, and resulted in the interconnector overloading”. The overload of the Heywood interconnector tripped the system, which caused the blackout. Read more here
4 October 2016, The Conversation, South Australian blackout: renewables aren’t a threat to energy security, they’re the future. In the wake of South Australia’s wild weather and state-wide blackout, both Prime Minister Malcolm Turnbull and Energy Minister Josh Frydenberg have emphasised the importance of energy security. Turnbull stated that the blackout was a wake-up call, suggesting that reliance on renewables places very different strains and pressures on a grid than traditional coal-fired power. The assumption that these politicians and others are working off is that South Australia’s wind industry has reduced the state’s energy security. But do these politicians really know what energy security means in a modern energy landscape? The baseload question. Baseload power is an economic term that refers to power sources that consistently generate electrical power, therefore meeting minimum demand. The minimum demand for electrical power from an electrical grid is referred to as the baseload requirement. The underlying assumption is that the only way of supplying baseload electricity demand is by means of power stations, such as those fired by coal, that operate at full power all day and night. This is a widely held belief in Australia. A former Australian industry minister, Ian Macfarlane, claimed at a uranium industry conference that the only serious alternative way that baseload power can be produced is by hydro and nuclear. But this is not entirely true. In 2014 South Australia got 39% of its electricity from renewable energy (33% wind plus 6% solar). Consequently, the state’s coal-fired power stations have become redundant. Read More here