Copper Wristfy bracelet warms skin directly, reducing the need to heat buildings

Thermoelectric bracelet that helps people maintain a comfortable body temperature takes home $10,000 from MIT's annual materials-science design competition. The "watch" part of the prototype actually consists of the team's custom copper-alloy-based heat sink (a component that lowers a device's temperature by dissipating heat). Attached is an automated control system that manages the intensity and duration of the thermal pulses delivered to the heat sink. Integrated thermometers also measure external and body temperature to adjust accordingly.

Brazilian miner Vale has been developing technology with the University of São Paulo (USP) to identify bacteria and fungi able to absorb copper particles, aiming to take economic advantage of tailings from mineral processing

The board of the National Agency of Electrical Energy (ANEEL) approved today (April 17th) rules to reduce barriers to the installation of distributed generation ofup to 100 KW of power (micro generation), and from 100 KW to 1 MW of power (mini generation).

"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 electricity sector accounts for almost 35 percent of greenhouse gas (GHG) emissions in the United States, and 40 percent of the carbon dioxide (CO2) emissions. Over 80 percent of GHG emissions associated with electricity generation are from the combustion of coal, with nearly all the rest due to natural gas and petroleum combustion. U.S. electricity sales are split among the residential (37 percent), commercial (36 percent), and industrial (27 percent) sectors, where primary uses vary by sector. Over the past 30 years the U.S. electricity sector has become less carbon intensive, and the U.S. economy has grown less electricity-intensive.

Wind energy's 32% growth rate in 2009 as an example of "the impressive growth rate of renewables" The total global potential for renewable energy "is substantially higher than both current and future projected global energy demand" is the message of the Special Report on Renewable Energy Sources and Climate Change Mitigation released by the UN Intergovernmental Panel on Climate Change (IPCC) today in Abu Dhabi.

Brazilian wind farm buys 80 MW of Vestas wind turbines 13 May 2011 Galvao Energia has ordered 40 Vestas 2 MW wind turbines for a wind farm project in Rio Grande do Norte, Brazil. By Renewable Energy Focus staff The 80 MW Olho D'Agua, Sao Bento do Norte Farol wind farm will see the first delivers in the third quarter of 2012, with completion scheduled for December the same year.

Mexico, one of the leading suppliers of oil to the United States, has increasingly embraced alternative energy in the face of dwindling crude output, infrastructure and investment. In response to energy and economic woes, President Felipe Calderón has pushed through energy reforms, pledging that Mexico will be producing a minimum of 2,500 megawatts of wind capacity by the time his term ends in 2012. So far, Mexico's progress has been impressive. In 2005, the nation only produced 3 megawatts electricity from wind. By the end of 2010, the country had 519 megawatts of installed wind power. And the future prospects look promising.

The visit seemed destined to be a genial affair in which Obama and President Piñera could celebrate energy cooperation and entrepreneurship, enter into a nuclear cooperation agreement and discuss the benefits of the clean and green economy. With the global energy calculus again once again shaken by dramatic events, that simple narrative is no longer plausible.

Skyline Solar today introduced the Skyline X14 System and announced that it has been selected for a 500-kilowatt (kW) concentrated photovoltaic (CPV) plant to be built in Durango, Mexico. DelSol Systems, one of Mexico's leading solar integrators, will construct the project, which will be the largest CPV plant in Latin America.

Top-level executives disagree with other senior executives on how much their companies are doing to address energy efficiency, according to a study by the Economist Intelligence Unit (EIU). In the survey by EIU and Ingersoll-Rand, 49 percent of C-suite executives said their organizations do not do enough to integrate energy efficiency into business strategy, compared to 61 percent of executives below that level.

A Cemig (MG) firmou acordo de cooperação com a Agência Norte-Americana para o Comércio e Desenvolvimento, do Governo dos Estados Unidos, garantindo um financiamento a fundo perdido de US$ 710 mil em investimentos. Os recursos serão aplicados no estudo de viabilidade de implementação de redes inteligentes de energia da Cemig e da Light (RJ), em complemento a seu programa de smart grid.

Licitação deve ser aberta em dois meses. Projeto conta com investimento total estimado de R$ 10 milhões

"The Chilean government has set its sights on significantly increasing its geothermal energy capacity. The Ministry of Energy recently announced a new contract for the development of 20 areas by 2012. 70 bids from 13 domestic and foreign firms were submitted for the rights to exploit the newly released regions of Rarapacos and Los Ricos. Earlier in the year, Energy Minister Ricardo Raineri announced more than 170 concessions for geothermal energy by 2012. He further specified that these concessions would be supported by US$200 million in funding from the government. The country is striving to increase its geothermal capacity to 1,000 megawatts in order to meet an ever-growing energy demand in a sustainable manner"