Showing posts with label solar power. Show all posts
Showing posts with label solar power. Show all posts

Sunday, March 08, 2009

Towards the Solar economy

Last month, the San Francisco Chronicle revealed that the cost of installing solar panels on homes and businesses in the US has dropped by almost 28 percent from in the decade from 1998 through 2007. While the cost remains high due to the scarcity of silicon used in the production of photovoltaic solar panels, the industry has been trying hard to drive down the cost, using new materials, new production processes and streamlined installation techniques. Severin Borenstein, director of the UC Energy Institute, says photovoltaic solar power still isn't economical compared to other forms of electricity generation. "What we're seeing in small-scale solar are incremental declines, not breakthrough declines," Borenstein said. "And in order for solar to really make sense, we're going to need breakthrough declines."

Over in Germany, Dr Hermann Scheer has devoted his life and several books to the study of how we might get to those breakthrough declines. One of those books, written in 1999, is called “Solare Weltwirtschaft” which was translated into English as “The Solar Economy” in 2002. According to the book’s own blurb, it lays out “the blueprints of how political, economic and technological challenges of sustainable energy can be met using indigenous, renewable and universally available resources, and the enormous opportunities and benefits that will flow from doing so.”

Scheer says that international conferences don’t discuss the most important subjects. These include global carbon dioxide taxation, an abolition of conventional energy subsidies and an end to tax exemption for aviation fuel. Scheer identifies the rapid growth in air travel as the single greatest climate danger. (When libertarian groups such as Spiked attack the environmental anti-flying lobby on the grounds of “increased mobility for all”, they miss the point that what is at stake here is not personal freedom, but the method of how it is achieved). The problem is that the airline industry is heavily subsidised. Subsidies including the lack of aviation fuel duty, zero VAT-rated aircraft purchase, and no airport property taxes, make the aviation industry a giant global tax free zone.

Scheer says global conferences such as Kyoto have also become “fixated” on policy instruments such as tradable emission permits which attempt to reconcile climate change prevention with the interests of the fossil fuel industry. The proposed Australian Emission Trading Scheme (ETS) is a deeply flawed example of this as John Stapleton noted in The Australian last month. Under the scheme, the more individuals save on their emissions the more corporate polluters such as coal stations and aluminium smelters are allowed to emit. As Australia Institute head Richard Denniss told Stapleton It is a zero-sum game. “The least understood feature of the ETS is that the more effort households put into reducing their energy use,” said Denniss, “the more spare permits they are freeing up for the big polluters.”

Scheer says Kyoto does not take into account the full supply chain of electricity production. ETS credits are earned by improving one link in the chain, the ratio of energy input to energy output. It does not take into account supply chain losses and emissions in extraction, processing, shipping, and storage of primary energy nor in the disposal and distribution of waste materials. And as global trade becomes more liberalised, these supply chains (pdf) are only likely to lengthen. And every player in the chain has a vested interest in keeping the chain afloat. Bankers who invest in these massive resource-intensive projects are also biased stakeholders. Scheer says that only the short supply chains of renewable energy can overcome these unholy alliances.

The vested fossil fuel industries also compromise treaties such as Kyoto by virtue of the so-called “flexible mechanisms”. The rationale behind these mechanisms is a reasonable one on face value. The idea is that emissions are a global problem and that the place where reductions are achieved is not important. This allows countries to convert credits with other countries for use towards meeting commitments under the trading system. But Scheer says participating countries are tacitly banking on a more efficient fossil energy system to bail them out. We can see that here in Queensland with its obsession for that foolish paradox called “clean coal”.

Scheer says there is little point in building a global climate change strategy if renewable energy is seen as a secondary issue. He says a radically different approach is needed if we are to emerge from the “tangled web of vested interests” that make global climate change negotiations so fraught. Scheer believes that only a technological revolution can achieve the quantum shift in thinking towards renewables. But such a revolution needs incentives towards investments that bring sustainable improvement.

There are many examples of technological revolutions (aviation, telecommunications, the car society, electricity grids) but none of them have run their course without encountering massive resistance. What they all needed at the outset was targeted help and a positive political framework until they become self-sustaining. Scheer says we do not need a global treaty to achieve this for renewable energy. What is required, he writes, is that “first one and then ever more states and companies must be prepared to seize new opportunities without pandering to the fossil fuel industry”. That vision should be remembered next time any pro-status quo voice condemns Australia’s supposed “unilateral” move towards a fossil-free economy.

There are signs that industry is heeding his message. Australia’s biggest engineering company, WorleyParsons, is determined to lead what The Age called the world's biggest solar project. By 2011, the company wants to set up an initial $1 billion 250-megawatt unit in WA’s Pilbara region. They plan to lead $34 billion of solar projects be built by 2020 by companies including BHP Billiton and Rio Tinto.

But while private enterprise can show the way, Australia needs strong government action to be a truly successful post greenhouse economy. Ontario’s new Green Energy Act is a good starting place, and one that local legislators would do well to study. As Ontario energy minister George Smitherman notes, the jurisdictions that get there first are going to benefit first.

Friday, November 02, 2007

Suntech predicts cheaper solar power

Chinese solar company Suntech Power said today it expects solar cell prices to go down as early as 2008 fuelling demand for solar energy. Suntech Power makes silicon photovoltaic cells for solar panels. Up to now the industry has been heavily subsided by government grants which have kept customer prices high. Suntech boss Sri Zhengrong said “price cuts would allow the industry to flourish without artificial supports, increasing its transparency”.

The biggest impediment to keeping prices low is likely to be the availability of silicon. There is a severe worldwide shortage of poly-crystalline silicon which could last for five years. Polysilicon prices have doubled in less than two years and are expected to rise by another 30 per cent in each of the next three years. The problem is due to the fact that polysilicon is also used to make silicon chips and there is competing demand between the booming semi-conductor industry and the rapidly expanding solar sector.

Suntech is the world’s fourth largest solar cell maker. Suntech Power is listed on Nasdaq capitalised at $US5.5 billion. 44 year old owner Shi Zhengrong, an Australian citizen, is now the richest man in China. Forbes estimate his personal wealth in 2006 at $2.2 billion. Remarkably China accounted for just 10 percent of sales. Most of Suntech's equipment is exported to Europe. Its key markets are Germany, Japan and Spain, all of which have statutory requirements for utilities to buy solar-generated power. The company sales soared 165 percent from 2005 to 2006, getting to just short of $600 million for the year.

Now it is beginning to focus on America. Currently the US accounts for just 3 per cent of Suntech’s sales. On Tuesday the company announced San Francisco would be its US headquarters. Zhengrong said that the US was slow to take up solar but that within two or three years it could become the world's largest solar market. He believes this growth will be spurred by abundant sunshine and leadership from states such as California. Looking beyond solar cells, he wants the company to design whole solar systems. Zhengrong said Suntech may establish a research centre in Arizona or California, and may want to buy more small solar companies.

Shi Zhengrong established his solar power panel manufacturing enterprise in 2001. Zhengrong was educated in Shanghai where he obtained a master's degree in laser physics. He moved to Sydney to study optics in the late 1980s. In 1989 he became a PhD student in the groundbreaking photovoltaics laboratory run by two University of NSW professors and solar pioneers Martin Green and Stuart Wenham. In 1995 Zhengrong was appointed deputy director for research at Pacific Solar, a co-operative venture between the university and Pacific Power. Zhengrong took out Australian citizenship and seemed content to stay in Sydney.

But he changed his mind after a 2000 visit to his homeland. Zhengrong was excited by the rapid development he saw and was persuaded to return to Wuxi on the outskirts of Shanghai to start up Suntech Power selling solar equipment. The company started with 20 employees and $11m in government grants. The company quickly turned a profit and by 2005 Suntech (STP) successfully launched on the New York Stock Exchange. It is now the largest solar module manufacturer in the world, has four production sites in China and employs 4,000 staff globally.

Despite Zhengrong being the product of the local university system, Australia has been slow to take up the challenge of solar power. Lack of funding and government climate change scepticism has irreparably damaged the industry here. Murdoch University Professor of Energy Studies Dr Phillip Jennings said scientists would lose research grants if they openly criticised Federal Government policies on renewable energy or climate change. “I think the Government has had a stopgap, sort of stop and go, approach to renewable energy,” he said. “Every time criticism has arisen or a crisis has blown up, they've thrown some more money at it.”

The government has short-sightedly stripped solar energy of research funding, as well as closing the Energy Research and Development Corporation and the Cooperative Research Centre for Renewable Energy. Former federal energy policy adviser Guy Pearce has blamed vested interests. “It's important to understand that some of the same interests who have persuaded our government to avoid emission cuts domestically also have an interest in domestic nuclear power,” he said. “Our two biggest uranium producers are also in the coal and aluminium business”.