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BuildingIQ’s 5i platform brings intelligent energy management to greater Springfield, Australia’s fastest emerging city

RenewEconomy - Tue, 2017-04-11 10:44
State-of-the-art building housing GE’s Queensland Headquarters utilizing cloud-based platform for operational improvements and improved energy efficiency
Categories: Around The Web

Huge 300MW solar farm begins construction near Port Augusta

RenewEconomy - Tue, 2017-04-11 10:05
First two stages of 300MW solar farm near Port Augusta will provide grid stability services - even at night - and be "battery storage ready". CEO Tony Concannon says combination of solar and storage will soon fall "well below" $100/MWh, meaning major changes for the grid.
Categories: Around The Web

Electricity’s carbon footprint in U.S. post record falls over two years

RenewEconomy - Tue, 2017-04-11 09:52
Carbon emissions from energy use by Americans fell 1.7 percent last year, part of a decade-long slide in the carbon footprint of energy in the U.S.
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Astronomers detect ultra-faint galaxy from the very early Universe

ABC Science - Tue, 2017-04-11 09:17
DISTANT PAST: Astronomers discover the faintest galaxy ever glimpsed in the early universe, shedding light on a critical period of time just 700 million years after the Big Bang.
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Dreaming 'hot zone' found at the back of the brain

ABC Science - Tue, 2017-04-11 09:15
DREAM ZONE: Scientists have found a "hot zone" in the back of the brain that is active during dreaming at all times, challenging long-held beliefs about what happens in our brains while we sleep.
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Ocean tech: Robot sea snakes and shoal-swimming subs

BBC - Tue, 2017-04-11 09:12
A robot sea snake that could one day "explore the Titanic" makes its debut at an ocean expo.
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Malcolm Turnbull talks up coal in Delhi, despite India's aim to stop imports

The Guardian - Tue, 2017-04-11 06:24

Glut in Indian coal market, plans to phase out imports and lower than forecast energy demands cast doubt on future for exports from proposed Adani mine

Malcolm Turnbull is adamant that Australian coal will play “a very big role” in powering India’s future despite a glut in the local market and clear signals from Delhi that it aims to eliminate imports of the fossil fuel as soon as possible.

The prime minister touched down in New Delhi on Monday for his first official visit to the south Asian giant. Selling Australia as an attractive destination for Indian students and reviving negotiations over a free-trade agreement are high on the agenda as the government vies for a slice of the world’s fastest growing major economy.

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Three ways to improve commercial shipping's environmental footprint

The Conversation - Tue, 2017-04-11 06:18
A man stretches his leg on the bank of the Han River as a ship passes by amid thick haze. Tens of thousands of premature deaths in east Asia every year are caused by shipping pollution. REUTERS/Stringer

Do you wear runners, drink coffee or own a mobile phone? The chances are that these products cruised to you on a ship. In 2015, the global merchant fleet carried a record 10 billion tonnes of cargo, a 2.1% increase from the previous year.

However, while it’s an essential part of international trade, shipping also poses serious risks to the environment. Apart from damage caused by dredging shipping channels and the spread of marine pests around the world, there is also growing concern about pollution. According to a report from the European Union, international shipping contributes 2.5% of global greenhouse gas emissions annually. This is predicted to rise by between 50% and 250% by 2050.

As well as contributing to global warming, ship pollution includes toxic compounds and particles that cause a host of other health hazards. A 2016 Chinese-led study found the shipping boom in east Asia has caused tens of thousands of premature deaths a year, largely from heart and lung disease and cancer.

Commercial ships are designed to be used for a long time. As a result, their engines are typically older and less efficient than those used in many other industries, and replacing them is prohibitively expensive. But there are some immediate solutions to this problem that use existing technology: increasing fuel quality, treating engine emissions, and adopting other energy-conservation measures so that ships burn less fuel.

Improve fuel quality

When diesel ship engines burn poor-quality fuel, their smoke stacks release oxides of nitrogen and sulfur as well as carbon. These pollutants, as well as contributing to greenhouse warming, are highly toxic. Sulfur dioxide readily dissolves in water, creating acid rain that causes harm to both people and the environment.

Refinement of crude oil removes sulfur, which reduces the amount of sulfur dioxide produced when the fuel is burned. Higher-grade diesel also reduces the volume of heat-trapping nitrous oxide, but is more expensive to produce because it requires more purification at the refinery.

The International Maritime Organization, the UN body that regulates the safety and security of shipping, is planning to reduce the amount of sulfur allowed in fuel. However, it is currently considering whether the change will take place in 2020 or will be deferred to 2025.

Install exhaust scrubbers

Clean fuel is an important part of reducing emissions, but the higher cost of low-sulfur fuel will deter many companies. Another way for ships to meet clean-air requirements is by capturing engine exhaust and passing it through scrubbers. These scrubbers convert nitrous oxide gases into harmless nitrogen and water.

This process requires retrofitting older ships, and updating the design of new ship exhaust systems. One advantage of this approach is that it allows ships to meet the different pollution regulations around the world without having to swap fuels.

Another way to reduce production of nitrous oxide is by reducing the temperature at which diesel fuel burns, but this leads to decreased fuel efficiency and increased fuel consumption. Scrubbers are potentially a cheaper and more accessible option.

Reduce energy use overall

Ships don’t just burn diesel fuel to propel themselves through the water. Fuel also generates electricity so that people on board can do things like use computers and read at night.

To increase fuel efficiency, other energy conservation measures can be adopted so that ships burn less fuel and decrease their emissions. The US Navy’s Green Fleet has, for example, replaced their old light fixtures with energy-saving LEDs.

They have also undertaken a temperature control initiative, where thermostats have been checked to ensure they are in proper working order and faulty parts in their water cooling systems replaced. Some ships have gone further, and installed stern flaps that modify the flow of water under the ship’s hull to reduce drag, thus increasing fuel efficiency.

All of this means the shipping industry can lower its fuel bill through conserving energy, and at the same time reduce its negative impacts on the health of humans and the planet. With more than 20,000 ships in the global fleet, these immediate solutions to reducing greenhouse gas emissions and other types of pollution will make a real difference.

The Conversation

Martina Doblin has received funding from the Australian government to advise them on the risks of invasive species being introduced to Australian waters via shipping.

Categories: Around The Web

Ancient walker

BBC - Tue, 2017-04-11 04:09
It's not a household name, but an ancient amphibian found in the Scottish borders fills a crucial period in the evolutionary record.
Categories: Around The Web

Poultry in England allowed outside as anti-bird flu measures relaxed

BBC - Tue, 2017-04-11 02:54
They had been kept indoors to protect them from an infectious strain of bird flu.
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New fiver is not so indestructible - if you know how

BBC - Mon, 2017-04-10 21:31
A Nottingham chemistry professor takes a hammer to the tough new plastic fiver.
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Two-thirds of Great Barrier Reef damaged

BBC - Mon, 2017-04-10 19:52
Scientists say coral bleaching has damaged the World Heritage site for two years in a row
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Aerial survey shows severe coral bleaching of the Great Barrier Reef

ABC Environment - Mon, 2017-04-10 18:43
It's the second year in a row that the reef has suffered from coral bleaching.
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ENGIE reaffirms its commitment to invest and build a new generation of sustainable and clean energy solutions in Asia Pacific

RenewEconomy - Mon, 2017-04-10 18:41
ENGIE Executive Vice President has signed eight agreements to develop sustainable and clean energy solutions, in line with the Group’s strategy.
Categories: Around The Web

Labor says ageing coal-fired power stations need 'orderly' retirement plan

The Guardian - Mon, 2017-04-10 18:06

Opposition says Turnbull government must not fund new coal-fired power plants because they are not value for money

Labor is calling on the Turnbull government to create a national framework for the “orderly exit” of ageing power stations, with a transition plan for thousands of workers who will lose their jobs from station closures in coming years.

It also says the Turnbull government must stop funding new coal-fired power plants because commonwealth funding does not represent value for taxpayer dollars.

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Bosch and Daimler are working together on fully automated, driverless system

RenewEconomy - Mon, 2017-04-10 14:53
Bosch and Daimler are working together to take the development of fully automated, driverless vehicles forward.
Categories: Around The Web

Know your NEM: Higher prices in Victoria a boon for wind

RenewEconomy - Mon, 2017-04-10 14:41
New data shows that for a couple of hours on Sunday, wind and solar were about 15/16 of South Australian demand and something like 70% of the total over the day.
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Year 2 are making a bug hotel

The Guardian - Mon, 2017-04-10 14:30

Willaston, Cheshire Sorting through the bits and bobs, gathering leaf litter and twigs, they work in harmony like ants

There is a frisson of excitement, giggles and whispers, as the seven-year-olds file out of the school building, clutching bamboo canes and tiles, bits of corrugated cardboard and roofing felt, along with broken terracotta crocks.

Today Year 2 are making a bug hotel. A great way of recycling and giving homes to all kinds of creepy crawlies, their teacher had explained earlier in the week before sending them home to raid garages and sheds.

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Battery breakthrough by 94yo inventor addresses costs and life-cycle

RenewEconomy - Mon, 2017-04-10 13:47
University of Texas team develops low-cost, high energy density, non-combustible battery that could be game-changer for EV uptake.
Categories: Around The Web

Telco and online energy retailer merge to take on utility big boys

RenewEconomy - Mon, 2017-04-10 12:57
Junior telco amaysim buys on line retailer Click Energy to create an "asset light" company that can specialise in "smart home" and challenge energy retailer and telco incumbents utilities without the burden of legacy fossil fuel plants.
Categories: Around The Web

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