Tesla Motors Announces A New Home Battery; Living Off The Grid Will Soon Be Status Quo
How to Set up an Urban Permaculture Garden
The Permaculture Neighbourhood Centre in California feeds the community whilst teaching people how to turn urban lots into edible oases. The garden is just 1/3 of an acre and is filled with edibles and plants beneficial to wildlife. It has been consciously designed to address issues of food security, environmental degradation, water scarcity and more! What used to be an asphalt car park, three years later is now an edible garden for everyone. Erik Ohlsen explains how through a wide range of permaculture techniques, they have created an abundant and educational garden. Erik's main focus is how benefical the set up of their rainwater harvesting system has been. The garden also works heavily on stacking functions - the fence prevents children from getting on to the road, whilst food can also be grown up it. To fill the space with as many edibles as possible, fences and structures are built from living trees. This is a garden packed with permaculture and food but also education.
Tesla releases details of its solar roof tiles: cheaper than regular roof with ‘infinity warranty’ and 30 yrs of solar power | Electrek
Tesla released today all the information to order its new solar roof tiles products – starting with the smooth black glass tiles and the textured glass tiles, as reported earlier today. Of course, the most important information that people were waiting for is price. CEO Elon Musk first hinted that it would be cheaper than a regular roof after accounting for energy savings, and later said that Tesla’s solar roof could cost less than a regular roof – even before energy production. Tesla pretty much delivered on both depending on how you look at it. The company says that the “typical homeowner can expect to pay $21.85 per square foot for a Solar Roof.” What is important to understand is that not all tiles on the roof would be solar tiles. The $21.85 per square foot price point was calculated for a roof where 35 percent of the tiles are solar (solar tiles cost more per square foot than non-solar tiles). They are including an installed 14kWh Powerwall 2 in the quotes.
Tesla's new product is a battery for your home - May. 1, 2015
Tesla is calling the rechargeable lithium-ion battery the "Powerwall." As the name suggests, the unit is designed to be mounted on a wall, and connected to the local power grid. It will be sold to installers for $3,500 for 10kWh, and $3,000 for 7kWh. Deliveries will begin in late Summer. Home batteries power up overnight, when energy companies typically charge less for electricity. Related: Is the Tesla home battery worth the cost? Kimbal Musk, a Tesla board member, told CNNMoney earlier this week that the new battery would slash consumers' electric bills by 25%. The announcement was made during an event in California. "The issue with existing batteries is that they suck," said Tesla CEO Elon Musk. When coupled with solar energy, the batteries will help accelerate the move away from fossil fuels, he said. "That's the future we need to have," Musk said. Tesla (TSLA) has talked about releasing a home battery for about a year.
Cohabitat - Photos du journal
NSA Spying Wins Another Rubber Stamp
February 27, 2015 A federal court has again renewed an order allowing the National Security Agency to continue its bulk collection of Americans' phone records, a decision that comes more than a year after President Obama pledged to end the controversial program. The Foreign Intelligence Surveillance Court approved this week a government request to keep the NSA's mass surveillance of U.S. phone metadata operating until June 1, coinciding with when the legal authority for the program is set to expire in Congress. The extension is the fifth of its kind since Obama said he would effectively end the Snowden-exposed program as it currently exists during a major policy speech in January 2014. Obama and senior administration officials have repeatedly insisted that they will not act alone to end the program without Congress. More than a year's worth of efforts to reform the NSA stalled last year, as the Senate came two votes short of advancing the USA Freedom Act in November.
Solar Is Being Held Back by Regulations, Not Technology
Due to the drop in costs for solar technology and increases in electric utility rates, solar photovoltaic-generated electricity is now less expensive than grid electricity, and adoption is rising rapidly throughout the U.S. In fact, Bloomberg reported that the American solar industry had a record first quarter in 2016, and for the first time, it drove the majority of new power generation. As I previously wrote, the U.S. solar industry is now creating enough jobs (hiring new workers 12 times faster than the overall economy) that it could actually absorb all the coal jobs that would be lost if the coal industry was completely shut down. And yet there’s room for even more industry growth, and more savings for American consumers: a recent study my team conducted found that antiquated regulations are costing the growing solar market an additional $70 billion. To understand why, we have to start by looking at the market for solar. This leads to an intricate web of confusing rules.
Tesla: World's biggest battery half-built
Image copyright Tesla Tesla has reached the half-way point in its plan to build the world's biggest battery, in South Australia. The plan to build the 100MW (129MWh) lithium battery grew out of a Twitter bet between Tesla boss Elon Musk and Australian software entrepreneur Mike Cannon-Brookes. Mr Musk said Tesla would build the wind-charged battery in 100 days or the state would not have to pay for it. It is designed to help prevent power cuts that regularly hit the region. Critics have said the area's reliance on renewable energy sources has left it vulnerable. The Twitter conversation kicked off a flurry of activity in Australia, with three Tesla rivals bidding to undercut the company on price and the time it would take to get the energy store running. It led to Tesla, Zen Energy, Carnegie Clean Energy and Lyon Group all being invited to bid for part of a $A150m (£88m) fund that the South Australian government dedicated to the creation of the battery and other renewable power sources.
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Se desmonta el bluf: Hacienda podría devolver 150.000 euros a Monedero tras su declaración adicional
El Sindicato de Técnicos de Hacienda (Gestha) no descarta que Hacienda termine devolviendo hasta 150.000 euros al número tres de 'Podemos', Juan Carlos Monedero, tras la declaración complementaria que éste ha presentado por los 425.000 euros que cobró en 2013 por supuestos trabajos para Gobiernos latinoamericanos. Así lo señaló en declaraciones el secretario general de Gestha, José María Mollinedo, quien explicó que esta posible devolución a Monedero “no es automática” y sólo podría producirse una vez concluya la investigación fiscal abierta y se analice el contrato. El requisito principal para que se concrete la devolución es que se comprobase que los trabajos que este dirigente de 'Podemos' dice haber realizado para Gobiernos latinoamericanos se hubiesen llevado a cabo durante un período de más de dos años y se cumpliese con los requisitos establecidos en estos casos. "Alternativa prudente"
Solar has the brightest sustainable energy future. Here's why
Humans consume 221 tonnes of coal, 1,066 barrels of oil, and 93,000 metric cubes of natural gas per second. These materials were wonderful for the industrial revolution that started in Britain in the 18th century and made use of “new energy” sources such as coal and petroleum. At the start of the 21st century, however, it’s time to reassess the notion of “new energy”. Sooner or later humanity needs to get its head around the fact that the only long-term sustainable energy solution is solar energy. Off-grid solar should be Africa’s energy future. In my years of teaching an advanced level sustainable energy course, it’s clear that the ‘sustainable energy’ solution requires a multidisciplinary approach and needs expertise from the fields of chemistry, biophysics, biology and materials engineering. For example, photosynthesis is nature’s solution to sustain life and its complete understanding touches many disciplines. Say yes to the sun New technologies Say no to nuclear energy