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"Donald Sadoway: The missing link to renewable energy Tweet this talk! (we'll add the headline and the URL) Post to: Share on Twitter Email This Favorite Download inShare Share on StumbleUpon Share on Reddit Share on Facebook TED Conversations Got an idea, question, or debate inspired by this talk? Start a TED Conversation, or join one of these: Green Home Energy=Hydrogen Generators-alternative sources Started by Kathleen Gilligan-Smith 1 Comment What is the real missing link in renewable energy? Started by Enrico Petrucco 8 Comments Comment on this Talk 60 total comments Sign in to add comments or Join (It's free and fast!) Sort By: smily raichel 0 Reply Less than 5 minutes ago: Nice smily raichel 0 Reply Less than 5 minutes ago: Good David Mackey 0 Reply 3 hours ago: Superb invention, but I would suggest one more standard mantra that they should move on from and that is the idea of power being supplied by a centralised grid. This technology seems to me to be much more beneficial on a local scale, what if every home had its own battery, then home power generation becomes economically more viable for everyone. If you could show that a system like this could pay for itself in say 5 years then every home would want one. Plus for this to be implemented on a large scale requires massive investment that could be decades away. Share the technology and lets get it in homes by next year. Great ted talk. Jon Senior 0 Reply 1 hour ago: I agree 100%. Localised energy production would also make energy consumers more conscious of their consumption and encourage efforts to reduce it. We can invent and invent all we want, but the fast solution to allowing renewable energies to take centre stage is to reduce the base energy draw. With lower baseline consumption, smaller "always on" generators are required to keep the grid operational. Town and house-l

The U.S. Department of Energy (DOE) announced that it will provide $36 million for 15 projects aimed at furthering the development of new and cost-effective technologies for the capture of carbon dioxide (CO2) from the existing fleet of coal-fired power plants. \n\n"Currently, the existing U.S. coal fleet accounts for over half of all electricity generated in this country," U.S. Secretary of Energy Samuel W. Bodman said. "The projects announced today will combat climate change and help meet current and future energy needs by curbing CO2 emissions from existing coal-fired plants." \n\n

"The IEA estimates that of all efforts required to deliver a 50% reduction in global emissions by 2050 24% will need to come from end use fuel efficiency, 12% has to come from end use electricity efficiency and a further 7% will need to come from power generation efficiency. There is substantial potential for improving thermal efficiency of Europe's power plants. Our coal plants operate at an average 38% (BAT - Best Available Technology - on new coal plants delivers 46%). Our gas plants operate at an average of 52% efficiency (BAT- Best Available Technology - on new gas plants delivers more than 60%). Due to the age of the installed base, the average efficiency of Chinese coal plants is now higher than in Europe."

Investors piled out of Russian stocks Friday after the abrupt departure from the country of a foreign oil boss and the prime minister's unexpected severe criticism of a large steel firm. MICEX, the exchange where the bulk of trading in Russian stocks takes place, plunged by 4.8 percent as of 12:20 p.m. Russian time, while the RTS, a top stock index, lost 4.4 percent to drop beneath the critical 2000-point barrier for the first time since March. After Prime Minister Vladimir Putin's scathing attack on Mechel late Thursday, heavy trading in New York sent the steel and coal maker's stock down by nearly 40 percent, losses mirrored Friday morning in Russian trading. The premier criticized the company, which is the largest supplier of coal for steelmakers in Russia, for charging much higher prices for raw materials domestically than it does for its exports, and called for an antitrust investigation into its activities.

As China's economic lifeline, the iron and steel industry used to be a black smoke maker and blue-sky killer in the eyes of many people. In 2007, SO2 emissions by China's large and medium-sized steel and iron enterprises were estimated at 756,368 tons, down 0.51 percent year-on-year. And the discharge of industrial coal ash was 382,275 tons with a 2.79 percent decline. Otherwise, soot discharges increased 3.02 percent, totaling 156,648 tons. The Long March of environmental protection and energy efficiency for China's steel and iron enterprises is still challenging, though many in the iron and steel industry have launched a green revolution in order to improve their old image. Wuhan Iron and Steel (Group) Corp (WISCO) is one such environmental protection warrior. As China's thrid largest steel and iron manufacturer, WISCO used to be a major polluter in Wuhan, capital of Hubei province. Many residents complained and criticized the firm, joking that sparrows would turn black after flying over WISCO's mills.

Mr Kloppers can afford to dislike aluminium; the majority of his profits come from iron ore, oil and coal. But for the rest of the industry, his comments have sparked a debate: after a decade of sub-par profitability, is it still worth investing in aluminium?

Last week the Spanish government announced plans to cut subsidies for solar photovoltaic (PV) power by about 75%. Although the nation expects to surpass its 2010 goal for installed solar by four fold, the down side is that generous subsidies for the industry have resulted in a ballooning tariff deficit for the country, which has risen to 4.85 billion euros, upfrom 745 million last year. Reuters reported that lending to the Spanish photovoltaic plants has risen to $3.59 billion in the year to day, up from $230.9 million euros last year and $192.44 million in 2006. As a result, the Spanish government will as the energy regulator to cap subsidies for new PV solar capacity at 300 megawatts (MW) per year--200 MW for rooftop systems and 100 MW for ground-mounted systems, which have been the highest growth area. CSP has been slower than PV technology in its emergence on the renewable energy scene, but expectations for the technology, which focuses the heat of the sun to produce steam to drive electricity producing turbines. Projects underway in the U.S. and Spain are expected to produce electricity that is cost-equivalent to electricity produced from burning coal or natural gas.

Mongolia's political parties are locked in post-election squabbling, but once the dust settles a new government could finally pass deals to tap the coal, copper and uranium that sit beneath its vast deserts and grasslands. But analysts say the deal that goes ahead would be less than ideal for either Mongolia or foreign investors, with the country better served by taxing its mineral wealth, rather than seeking direct government ownership in massive mines. The current law gives the state either a 34% stake or a controlling 51 percent stake in mining projects. An investment agreement with Ivanhoe Mines and Rio Tinto for the Oyu Tolgoi project, still under negotiation, would be the first such deal.

In recent months, chains including Wal-Mart Stores, Kohl's, Safeway and Whole Foods Market have installed solar panels on roofs of their stores to generate electricity on a large scale. One reason they are racing is to beat a Dec. 31 deadline to gain tax advantages for these projects. So far, most chains have outfitted fewer than 10 percent of their stores. Over the long run, assuming Congress renews a favorable tax provision and more states offer incentives, the chains promise a solar construction program that would ultimately put panels atop almost every big store in the country. The trend, while not entirely new, is accelerating as the chains seize a chance to bolster their environmental credentials by cutting back on their use of electricity from coal.

The planned coal-fired project with two units of 660MW each would be set up with an estimated capital outlay of Rs 6,600 crore, sources said. The plant is expected to be operational within four years from the date of financial closure, a company official said.

The country will shut down small coal-fired power generators producing 13 gigawatts this year and require at least 80 percent of buildings under construction to meet energy-saving standards for the construction process by the end of 2008, the report said.