Green Technologies

///Green Technologies

Tesla Powerpacks Accelerate Puerto Rico’s Transition to Renewable Energy, Aid Hospital

Although the infrastructure crisis in Puerto Rico is an ongoing humanitarian disaster, there is a bright spot in news from the beleaguered island. Tesla is swooping in with Powerpacks and solar panels to help re-establish Puerto Rico’s power grid, starting with a major children’s hospital. When Hurricane Irma made landfall on Puerto Rico, some of

2017-10-31T08:04:35+00:00 Tags: |

Solar Windows Could Meet Nearly All of America’s Electricity Demand

There's an estimated 5 to 7 billion square meters of glass surfaces in the U.S. For windows on homes, cars and buildings, these glass surfaces perform a few basic functions—letting light and fresh air in when open, and blocking bugs and keeping the cold out when closed. Now they could all serve another, altogether revolutionary, purpose—generating electricity.

Renewable electricity set to grow 40% globally by 2022

The world’s renewable electricity capacity is set to rise sharply over the next five years, the International Energy Agency (IEA) says, expanding 43% on today’s levels. The forecast – a significant upwards revision of the IEA’s renewables projections last year  – is largely driven by increasing expansion of s in China and India, says the Paris-based organisation. The global dynamics of

The most effective clean energy policy gets the least love

Back in the 1990s and 2000s, when Democrats had more power in state governments, 29 states (and DC) passed some form of renewable portfolio standard (RPS), a policy that requires a state’s utilities to get a certain percentage of their power from renewable sources by a certain year. Standards range from California’s wildly ambitious 50-percent-by-2030 to Ohio’s modest12.5-percent-by-2026, and everywhere in

Air Conditioning System Beams Excess Heat Into Space–And Uses 70 Percent Less Energy

Air conditioning use takes a toll on the electrical grid--and on wallets. Now, a California startup has a space-age idea for changing that. SkyCool Systems, a company spun out of Stanford, has created a system that could change the way people cool their homes. It doesn't just involve keeping your home or office pleasant. The system will

Long-range communication barrier for near-zero-power devices shattered

University of Washington researchers have demonstrated for the first time that devices that run on almost zero power can transmit data across distances of up to 2.8 kilometers -- breaking a long-held barrier and potentially enabling a vast array of interconnected devices. For example, flexible electronics -- from knee patches that capture range of motion

2017-09-18T07:06:24+00:00 Tags: |

High-Tech Electronics Made from Autumn Leaves

WASHINGTON, D.C., August, 29, 2017 -- Northern China’s roadsides are peppered with deciduous phoenix trees, producing an abundance of fallen leaves in autumn. These leaves are generally burned in the colder season, exacerbating the country’s air pollution problem. Investigators in Shandong, China, recently discovered a new method to convert this organic waste matter into a

2017-09-13T08:10:03+00:00 Tags: |

What Does It Take For a Large Corporation to Go Green?

Though there have been various headline-grabbing moves towards eco-friendly business in recent times, how realistic is it really for a large corporation to operate sustainably? Think about everything it takes to run a global conglomerate. How could that possibly go entirely green? For one multinational, the answer is a two-pronged approach, aimed at delivering scale

2017-08-25T07:22:34+00:00 Tags: |

Wind and solar power are saving Americans an astounding amount of money

Wind and solar power are subsidized by just about every major country in the world, either directly or indirectly through tax breaks, mandates, and regulations. The main rationale for these subsidies is that wind and solar produce, to use the economic term of art, “positive externalities” — benefits to society that are not captured in

Solar paint offers endless energy from water vapor

Researchers have developed a solar paint that can absorb water vapour and split it to generate hydrogen – the cleanest source of energy. The paint contains a newly developed compound that acts like silica gel, which is used in sachets to absorb moisture and keep food, medicines and electronics fresh and dry. But unlike silica

2017-07-07T08:23:02+00:00 Tags: |

All Dutch trains now run on 100% wind power

As of the first of January this year, all public transport trains in the Netherlands are being powered by renewable energy, namely from wind power. There's currently a total of 2,200 wind turbines across the country, which generate enough power to sustain the equivalent of 2.4 million homes. Initially, trains in the Netherlands were set

This Tiny Device Could Provide Clean Water for 663 Million People

A tiny, black rectangular device could be the world’s long-term solution for clean water.  The gadget is solar-powered, half the size of a postage stamp, and it disinfects water. “Our device looks like a little rectangle of black glass,” said Chong Liu, lead author of a paper on the device published in Nature Nanotechnology. “We just

Water harvesting from air with metal-organic frameworks powered by natural sunlight

The prototype, designed by scientists at MIT and the University of California, works even in desert conditions and could eventually provide households with all the drinkable water they need, simply by extracting dampness from the surrounding atmosphere. The solar-powered harvester can provide 2.8 litres of water from the air over a 12 hour period in

2017-04-16T08:04:58+00:00 Tags: |

Growing Up: Vertical Farms Evolve to End Hunger

Cinder-block walls still bear Day-Glo paint murals inside the former laser tag arena that once hosted epic battles among New Jersey teens who breathlessly chased each other in a high-tech version of the incredibly low-tech game of tag. Nowadays, AeroFarms has taken over the cavernous building to operate one of the country’s biggest vertical farms.

2017-03-07T04:50:56+00:00 Tags: , |

Just Press Print: 3-D Printing At Home Saves Cash

Interested in making an investment that promises a 100 percent return on your money, and then some? Buy a low-cost, open-source 3-D printer, plug it in and print household items. In a recent study published in Technologies (DOI: 10.3390/technologies5010007), Michigan Technological University Associate Professor Joshua Pearce set out to determine how practical and cost effective

2017-02-21T10:53:24+00:00 Tags: |

Newly engineered material can cool roofs, structures with zero energy consumption

A team of University of Colorado Boulder engineers has developed a scalable manufactured metamaterial — an engineered material with extraordinary properties not found in nature — to act as a kind of air conditioning system for structures. It has the ability to cool objects even under direct sunlight with zero energy and water consumption. When applied

2017-02-13T17:38:11+00:00 Tags: |

Lighting Up Lingshed: A Remote Village in the Himalayas Gets Lights and Internet Access

About half of the population of the Himalayas has no access to electricity. Until recently, the 700 residents of Lingshed village were among them. Located in the Ladakh region of the Himalayas, the remote village is nearly a day's trek from the nearest road, which itself is impassable during the long winter months. In August 2016, a