Nest Labs: Automating the demand side of the smart grid

May 9, 2013 by  
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Want proof that the smart-grid ecosystem is alive and well? Nest Labs' news that it has signed partnerships with some of the US's biggest utilities should suffice. But more innovation is still needed.

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Nest Labs: Automating the demand side of the smart grid

How Companies Can Meet the New Demand for Fair Play

January 24, 2012 by  
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At a time when much of the world's population is demanding fair play, fair treatment and responsible capitalism, what might corporations do to demonstrate as much support and enthusiasm for fair trade as they do for free trade?

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How Companies Can Meet the New Demand for Fair Play

The Alternative To Keystone XL Pipeline: Ship The Oil By Rail

October 26, 2011 by  
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Altex Energy /Promo image Like any good TreeHugger I am against the Keystone XL pipeline, really I am; but as I wrote in Is the Keystone XL Pipeline Protest About Tar Sands or Politics? , the problem isn’t on the supply side, it is the demand. As Mat noted in Limited Export Capacity Behind Big Push For Keystone XL Tar Sands Pipeline , without the pipe there are not a lot of places for the oi… Read the full story on TreeHugger

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The Alternative To Keystone XL Pipeline: Ship The Oil By Rail

Taking a Look at Demand Response’s Bright Future

October 13, 2011 by  
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Tim Healy, the CEO of EnerNOC, talks about how demand response can be an insurance policy for the grid, and how his company has succeeded at getting individuals and businesses alike to cut their energy use.

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Taking a Look at Demand Response’s Bright Future

California Governor Signs Shark Fin Ban Into Law

October 10, 2011 by  
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Photo by StormyDog via Flickr CC Great news for sharks came on Friday in California when news hit that Governor Jerry Brown signed AB 376 into law, banning the sale, trade and possession of shark fins. The hope is that by hitting the market from the demand side, the supply side will be easier to slow down, and perhaps eventually stop. However, this bill was not without a great deal of controversy, especially among the Asian American community. … Read the full story on TreeHugger

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California Governor Signs Shark Fin Ban Into Law

Mad Like Tesla: Underdog Inventors and their Relentless Pursuit of Clean Energy (Book Review)

October 10, 2011 by  
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Images credit Clean Break Tyler Hamilton has been writing about green tech for the Toronto Star for six years, and is a regular source of stories on TreeHugger. Hamilton first became fascinated with Nikola Tesla while writing a story about Marconi, the so-called “Father of Radio.” Except he wasn’t; Tesla was, beating Marconi by 5 years. In fact the list of Tesla’s accomplishments is lengthy and impressive, but he was his own worst enemy when it came to his work, and was considered by many to be crazy. He spent his last years with his only friend, a pigeon…. Read the full story on TreeHugger

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Mad Like Tesla: Underdog Inventors and their Relentless Pursuit of Clean Energy (Book Review)

Compressed air system to save wind power for future use

September 6, 2011 by  
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Nandini Moulik: Wind Turbines Wind energy stored as compressed air As the demand for clean energy from renewable resources soar, implementation of technologies to save and maximize energy usage always remains the top priority. Given the situation of fast depletion of fossil fuels and environmental concerns, SustainX, a West Lebanon-based start-up has decided to use compressed air technology of storing wind energy generated by wind mills and producing the energy at peak hours. Air compression technology is not a new conception, but SustainX has come up with bigger plans to make it commercially viable. The wind generated by the windmills can be compressed and stored in underground caverns or depleted oil fields, which can be released later to produce power when the demand is high. This will reduce the dependency on fossil fuels. Storing of wind energy is a problem, but the necessity of storing this energy is ever increasing with the government imposing stringent rules in maximum power harnessing from renewable resources. SustainX has been successful in demonstrating a 40-Kilowatt prototype and is presently engaged in finishing a 1Megawatt project. The biggest advantage of compressed air technology is that it can generate power from the stored wind energy even when the wind is not blowing. The compressed air can be released to rotate the turbine blades and dispatch power according to the demand. This concept of Compressed Air Energy Storage (CAES) has been lurking in the minds of engineers for few decades, but then technical difficulties and the cost proved to be great barriers. Presently, higher energy prices have created a situation to implement compressed air technology to cater to the demand of clean energy market. Lack of enough storage space to store the compressed air for large scale power production is a big hindrance. SustainX has overcome this problem through the use of above the ground storage systems. The conventional turbine system does not work in above the ground storage tanks and SustainX has introduced pistons. These are cost effective and with better compression ability it can store more energy. Thus, above the ground storage tanks can store more energy than the same capacity underground caverns. Moreover, the pistons can function at a wider range when the tank pressure is too low to drive the turbines. Air compression generates a lot of heat and decompression requires heat. Much of the heat generated during compression gets wasted. The efficiency of CAES can be increased if the heat generated during compression can be stored. SustainX introduced a fine water spray in the cylinder to absorb heat generated during compression and the same hot water is used as a fuel during decompression. No wastage of energy and no extra heat requirement. The energy efficiency has shot up from 54% to 95%. SustainX uses electricity to drive the pistons in the storage cylinders. During energy release, the decompressed air drives the piston to run a generator. SustainX is working hard on isothermal compressed air technology due to its better energy efficiency. However, underground storage caverns are being considered more economically viable than above the ground storage tanks due to limited capacity of power production by the latter. Via: Technologyreview

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Compressed air system to save wind power for future use

Power Grid To Struggle With Off-Peak Renewable Energy Demand?

August 4, 2011 by  
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One major concern for many countries has been how to make their existing power grids ‘smarter’ so that they are more compatible with renewable forms of energy. However a report from MIT has stated that despite the increase in ‘smart meters’ (that allow people to see electricity cost fluctuations in real-time), a rise in demand could overload the power grid. Read the rest of Power Grid To Struggle With Off-Peak Renewable Energy Demand? Permalink | Add to del.icio.us | digg Post tags: MIT renewable energy power grid , MIT smart grid , off peak energy demand , renewable energy power grid , smart grid overload

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Power Grid To Struggle With Off-Peak Renewable Energy Demand?

VIDEO: Dude Goes Water Skiing On a Recycled Couch

August 4, 2011 by  
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Click here to view the embedded video. You may know how to couch surf, but we bet you haven’t couch water skied yet. We spotted this inventive example of furniture reuse and couldn’t help but admire the engineering prowess and skill the rider displays, all while drinking a cold one. The adaptive reuse of furniture is great; we’ve showcased a couch turned into a car , a bike , and now a water-worthy form of transportation – if it ever makes it back to shore in one piece. Read the rest of VIDEO: Dude Goes Water Skiing On a Recycled Couch Permalink | Add to del.icio.us | digg Post tags: converted couch , couch skiing , couch surfing , furniture conversion , green transportation , water skiing

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VIDEO: Dude Goes Water Skiing On a Recycled Couch

Ancient Climate Record Could Be Lost Within 10 Years

March 31, 2010 by  
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Image credit: g-hat /Flickr Buried in New Zealand’s peat bogs are more than 30,000 ancient climate records containing data that spans back to the last ice age. This data, stored in the rings of preserved kauri trees , is threatened by the demand for the prized timber. Now, a group of researchers from Oxford University is racing to collect this vital data before it’s too late…

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Ancient Climate Record Could Be Lost Within 10 Years

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