Why energy efficiency speeds renewables adoption

January 17, 2018 by  
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Consider it a potent combination for reducing emissions, in the most cost-effective manner possible.

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Why energy efficiency speeds renewables adoption

How this New York mall stays merry and bright, while saving energy

December 22, 2017 by  
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Ridge Hill’s extensive LED lighting and controls update has actually allowed it to add more holiday displays.

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How this New York mall stays merry and bright, while saving energy

Episode 104: SASB’s breakthrough year; the future of ESCOs

December 15, 2017 by  
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In this episode, electrifying U.S. rails, showing muscle for environmental finance and investors influence climate action.

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Episode 104: SASB’s breakthrough year; the future of ESCOs

General Motors wins cost savings with wind power

December 15, 2017 by  
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Car manufacturer General Motors (GM) is gone with the wind for all of its cost-saving benefits. “It provides economic certainty to electricity forecasts,” said Rob Threlkeld, GM’s manager of global renewable energy strategy, as well as savings over the years. Threlkeld discusses the path to fulfilling GM’s RE100 commitment to become 100 percent powered by renewable energy, including two deals to source wind power from Ohio and Illinois, respectively. 

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General Motors wins cost savings with wind power

The missing link for renewable energy investment? Blockchain

December 7, 2017 by  
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We need financial innovation to unlock energy efficiency’s environmental, employment and growth opportunities. Could this technology be the answer?

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The missing link for renewable energy investment? Blockchain

Andy Karsner and Dawn Lippert on solving our energy future

November 27, 2017 by  
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The best of live interviews from GreenBiz events. This episode: The former assistant secretary of energy on transforming markets and scaling technologies.

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Andy Karsner and Dawn Lippert on solving our energy future

The ultra-efficient, hidden heat source for Amazon’s new HQ

November 20, 2017 by  
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The “ecodistrict” project required cooperation from the city, architects and a corporate neighbor.

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The ultra-efficient, hidden heat source for Amazon’s new HQ

10 things you need to know from the World Energy Outlook 2017

November 15, 2017 by  
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The landmark IEA report looks at China’s rise as a green leader and much more.

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10 things you need to know from the World Energy Outlook 2017

Savvy city planners will be tomorrow’s climate heroes

November 8, 2017 by  
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Too much of today’s conversation focuses on energy generation rather than urban design, land-use planning and zoning interventions.

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Savvy city planners will be tomorrow’s climate heroes

This Russian cottage is heated for free with Bitcoin mining

November 7, 2017 by  
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In the last month, Bitcoin — the biggest and best-known cryptocurrency — rose in value by 480 percent . The sudden spike spurred more people to invest in the currency, while others dedicate computers to the task of mining bitcoins . Siberian entrepreneurs Ilya Frolov and Dmitry Tolmachyov are engaged in the latter – and they’ve found that they’re able to heat a 20-square-meter with two machines while pocketing $430 per month. Bitcoin transactions require a lot of computer processing power, which in turn produces a substantial amount of heat . Most “miners” just release that heat into the atmosphere — but not Frolov and Tolmachyov. The Russian entrepreneurs built a cottage in the Siberian town of Irkutsk that is heated by two Bitcoin mining machines. Each month, the men make about $430. And, they pay $0 to heat the 20-square-meter abode. In the video above, Quartz details how this is possible. Related: Power-hungry Bitcoin could consume as much energy as Denmark by 2020 Because Bitcoin is relatively new, it is still considered a highly volatile investment . However it has provided gains exceeding those of any other currency in every year but one since 2010, according to The Independent. The process of “mining” Bitcoin determines which transactions are valid, and which should be added to the blockchain — an ever-expanding ledger that holds the transaction history of all Bitcoins in circulation. The blockchain lives in the thousands of machines on the bitcoin network. Mining also ensures the system cannot be gamed, thus, making the cryptocurrency more secure than the US dollar. Every ten minutes, mining computers collect a few hundred pending Bitcoin transactions and turn them into a mathematical puzzle. The first miner to find the solution declares it to others on the network. The other miners then check whether the sender of the funds has the right to spend the money. If enough approval is granted, the block is cryptographically added to the ledger and the miners move onto the next set of transactions. A miner who finds the solution gets 12.5 Bitcoins as a reward, but only after another 99 blocks have been added to the ledger. This gives all miners an incentive to participate in the system and validate transactions. It also provides protection; to double-spend a Bitcoin, digital bank robbers would have to rewrite the blockchain — that would require more than half of the network’s puzzle-solving capacity! Via Quartz , The Economist , The Independent Images via YouTube , Pixabay

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This Russian cottage is heated for free with Bitcoin mining

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