BriTek recently unveiled its amazing new Energy Return Wheel, which is an airless bike tire that can never go flat.
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To the extent that this equation (energy return on energy invested, or EROI) is deteriorating, that must surely have an effect on economic growth.
Oscar Pistorius' existence now forces us to explicitly accept that reality -- now we see his carbon fiber legs, and even though we know they have inferior energy return to biological legs, their presence challenges us.
Drilling for oil is thought to have a return on energy anywhere from 5x to 20x.
In contrast, ethanol derived from sugar cane has return on energy invested of roughly 1.8x, while using switchgrass gets you 5x.
Shiona Baird, the Scottish Green Party's energy spokeswoman, is proposing a Holyrood bill to give householders and businesses council tax breaks and business rates rebates in return for installing renewable energy devices such as solar roofs and mini-wind turbines.
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If that capital cost has fallen for the same energy output then obviously the return is far higher now and should be revised.
After embarking an unfulfilling career at a large power company, Johan decided to return to the energy and sense of purpose that came with working with young people and math.
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The bamboo core, which runs the length of the ski with its grain running in a continuous line, gives the Peacepipe a rigid core that can return as much energy as a skier can put in.
And in a startup or a Fortune 500 company, continuing to spend time and energy on an initiative requires a return on that investment.
Last September, the six parties signed a statement saying that North Korea would end its nuclear weapons programs and in return get economic and energy assistance.
Energy companies posted the second best return, increasing 0.8 percent.
In Kosovo, too, much energy was devoted to helping the return of people displaced by war, even if they had to take the risk of coexisting with old foes.
But in any business struggling for energy and capital, energy efficiency is often the highest-return, lowest-risk investment available, limited less by technology or economics than by culture and imagination.
In general, firms selling technology that will earn a quick return, in fields such as energy efficiency, are proving most resilient.
The immediate result was a rather surprising and unexpected increase in my energy levels, leading to a very gradual return to exercise, building up slowly over an extended period of time.
Second, as AP reported, Iran itself discourages foreign investors in its energy sector by offering deals with low rates of return.
Although it may be likely that after six months production increase will surpass the consumption increase, there will be that initial period in which energy will be expended, but none received in return.
They'll get the agenda for their first week back in January - although expect all kinds of extra statements and urgent questions to pepper the order paper when they return - and then the chair of the Energy and Climate Change Committee, Tim Yeo, leads on Consumer Engagement with Energy Markets and its new inquiry on energy prices, profits and poverty.
July has historically been the best month for energy stocks, climbing more than 3 percent on a median return basis.
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These include the return of slick tyres, major aerodynamic alterations, and energy recovery systems.
The 25-year-old scrum-half his cruciate ligament in the Ospreys' EDF Energy Cup win over Saracens in March and is on target to return at the of September or early October.
Ocean Energy brings a whole portfolio of high-risk, high-return projects, from deepwater blocks off the coast of West Africa to one promising field that lies 9, 300 feet below the Gulf of Mexico.
They're just as eager to earn profits and reinvest them for maximum return as any razor-blade manufacturer, software programmer or energy company.
And in return they'd get some sort of package, including energy assistance and some security guarantees that North Korea is looking for.
New regulations for 2009 will see the return of slick tyres, the introduction of the new kinetic energy recovery system (Kers) and aerodynamic alterations.
"The choice for Riversdale shareholders is clear - accept the offer or risk seeing their share price return to pre-bid levels, " said Rio Tinto Energy chief executive Doug Ritchie.
Younger Romanians, who have grown up in a free society and studied and worked in the West, are beginning to return to the land of their birth, bustling with entrepreneurial energy and new ideas.
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