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Archive for the ‘sustainability’ category: Page 485

Aug 18, 2019

How Cheap Must Batteries Get for Renewables to Compete With Fossil Fuels?

Posted by in categories: climatology, finance, sustainability

While solar and wind power are rapidly becoming cost-competitive with fossil fuels in areas with lots of sun and wind, they still can’t provide the 24/7 power we’ve become used to. At present, that’s not big a problem because the grid still features plenty of fossil fuel plants that can provide constant baseload or ramp up to meet surges in demand.

But there’s broad agreement that we need to dramatically decarbonize our energy supplies if we’re going to avoid irreversible damage to the climate. That will mean getting rid of the bulk of on-demand, carbon-intensive power plants we currently rely on to manage our grid.

Alternatives include expanding transmission infrastructure to shuttle power from areas where the wind is blowing to areas where it isn’t, or managing demand using financial incentive to get people to use less energy during peak hours. But most promising is pairing renewable energy with energy storage to build up reserves for when the sun stops shining.

Aug 18, 2019

Tesla launches solar rental service, can get a solar panel system for $50 per month

Posted by in categories: finance, sustainability

Tesla is launching today a solar rental service – a brand new way to get a solar panel system on your roof for as little as $50 per month without any long-term contract.

SolarCity pioneered new models to sell solar power systems with no upfront cost by leasing them to homeowners and selling them the electricity it generates, like a regular electric utility.

Continue reading “Tesla launches solar rental service, can get a solar panel system for $50 per month” »

Aug 15, 2019

The ‘1,000-MPG’ BMW i3: 56,000 miles on 50 gallons of gas

Posted by in categories: sustainability, transportation

The few available range-extended electric car models give drivers added flexibility by using gasoline engines as onboard backup generators.

But using the range extender too often may consume a significant quantity of gasoline, somewhat offsetting the purpose of owning an electric car for some buyers.

Electric-car advocate Tom Moloughney faced that dilemma about two years ago, when he decided to buy one of the first BMW i3 electric cars in the U.S.

Aug 15, 2019

Tesla is working on new battery that lasts 1 million miles to come out next year, says Elon Musk

Posted by in categories: economics, Elon Musk, sustainability, transportation

Tesla CEO Elon Musk says that the automaker is working on a new battery pack to come out next year which will last 1 million miles.

When talking about the economics of Tesla’s future fleet of robotaxis at the Tesla Autonomy Event yesterday, Musk emphasized that the vehicles need to be durable in order for the economics to work:

Continue reading “Tesla is working on new battery that lasts 1 million miles to come out next year, says Elon Musk” »

Aug 14, 2019

This Hydroponic Farm Is Run Entirely By Robots

Posted by in categories: food, internet, robotics/AI, sustainability

Iron Ox has just opened its first fully automated farm in San Carlos, California. The company claims that their hydroponic system can produce 30 times the yield per acre of land comparing to traditional farms, while using 90% less water.

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Continue reading “This Hydroponic Farm Is Run Entirely By Robots” »

Aug 14, 2019

Underground Farm Produces 2 Tons Of Food A Month

Posted by in categories: food, sustainability

This is Growing Underground, it’s an underground farm founded in 2012 by Richard Ballard and Steven Dring.

The farm sits inside a WWII bomb shelter. Eight of these shelters were built across London during the war, and they were each built to house around 8,000 people.

Continue reading “Underground Farm Produces 2 Tons Of Food A Month” »

Aug 14, 2019

Underground bomb shelter converted into hydroponic farm in London (Video)

Posted by in categories: food, sustainability

A hi-tech hydroponic farm is producing fresh, leafy greens right in the heart of London, 100 feet below ground.

Aug 14, 2019

(Nearly) Unlimited Water

Posted by in categories: singularity, solar power, sustainability

This is Part Three of a five-part series by Ramez Naam, Singularity University Adjunct Faculty, exploring the power of innovation to boost our access to energy, food, water, raw materials, and human population. All are based on his new book, The Infinite Resource: The Power of Ideas on a Finite Planet

In Part One and Two of this series I showed that we have access to a huge amount of potentially available energy and food on the earth, both stemming from the tremendous input of solar energy to the planet. We have very serious energy and food challenges, which cannot be dismissed. But the challenges are not in the form of a hard limit – they’re in the form of a race between innovation and consumption. Victory in this race is certainly not guaranteed. But the most important variable – how quickly we innovate – is one we can affect through our policies. That’s a topic we’ll return to at the end of this series.

Aug 14, 2019

Giant Batteries Supercharge Wind and Solar Plans

Posted by in categories: government, solar power, sustainability

A global wave of investment in high-capacity batteries is poised to transform the market for renewable energy in coming years, making it more practical and affordable to store wind and solar power and deploy it when needed.

Government-owned utilities and companies are buying batteries that can be larger than shipping containers. Some like…

To Read the Full Story.

Aug 13, 2019

Study: All major Chinese cities capable of generating solar power more cheaply than grid

Posted by in categories: government, solar power, sustainability

A team of researchers with the KTH Royal Institute of Technology, Mälardalen University and Tsinghua University has found that all of China’s major cities are now in a position to produce electricity from solar power more cheaply than can be had from the grid. In their paper published in the journal Nature Energy, the group describes how they estimated solar energy costs for all the major Chinese cities, and what they found when they compared them to costs associated with the grid.

In recent years, China has put a significant amount of effort into producing and installing solar technology to the extent that they are now the world’s biggest producer of , and also the world’s biggest installer of solar panels. Last year, installations in the country accounted for half of all installations worldwide. A lot of that growth has been stimulated by government subsidies, but the Chinese government has made it clear that it wants solar to fly on its own—subsidies are slowly being withdrawn. In this new effort, the researchers wanted to know if China was ready to fly on its own, at least in its major cities.

The researchers started by estimating solar energy system prices and in all of the major Chinese cities. They then compared what they found with prices from the grid. Next, they estimated solar electricity prices at the grid scale, and compared them to electricity generated strictly from coal. The calculations accounted for estimates of the lifetime of solar systems. They report that they found that all 344 of the major cities they studied were currently in a position to generate electricity at lower costs than the grid supply—without subsidies. They also found that 22 percent of those cities could also produce at a lesser cost than possible with coal.