Energy

New Speed Record for Electric Airplanes

- Adam Clare

Electric airplanes are still rare but hopefully this will change sooner rather than later. Airplane fuel is super-dangerous for our friendly environment so if we can get planes to run off of batteries (electricity of course coming from wind or the like) than score a million for the good guys!

Cri-Cri is a small aircraft that just broke the electric plane speed record with ease and could herald the development of personal aircraft being electric!

According to Electravia, the firm who designed the Cri-Cri’s 35-horsepower motors and custom propellers, the plane was only using 75% of its total power when it broke the speed record. The engineering firm said that its engines and propellers could have taken the plane to speeds over 220 mph, however such velocity would have put serious stress on the Cri-Cri’s airframe so only 75% power was used.

Read more: The Cri-Cri Breaks the Electric Aircraft Speed Record

Solar Snow Removal

- Adam Clare 1 Comment

It should come to no surprise that the sun melts snow and ice. Indeed, one of the reasons we have such severe climate change is because the energy from the sun isn’t being reflected off of snow (the albedo effect).

Some enterprising researchers have proposed that we capture the energy the sun is tossing at us by using roads to store energy that can be later used to melt snow or provide energy. Imagine all the roads in North America as an energy source!

“We have mile after mile of asphalt pavement around the country, and in the summer it absorbs a great deal of heat, warming the roads up to 140 degrees or more,” said K. Wayne Lee, URI professor of civil and environmental engineering and the leader of the joint project. “If we can harvest that heat, we can use it for our daily use, save on fossil fuels, and reduce global warming.”
The URI team has identified four potential approaches, from simple to complex, and they are pursuing research projects designed to make each of them a reality.
One of the simplest ideas is to wrap flexible photovoltaic cells around the top of Jersey barriers dividing highways to provide electricity to power streetlights and illuminate road signs. The photovoltaic cells could also be embedded in the roadway between the Jersey barrier and the adjacent rumble strip.
“This is a project that could be implemented today because the technology already exists,” said Lee. “Since the new generation of solar cells are so flexible, they can be installed so that regardless of the angle of the sun, it will be shining on the cells and generating electricity. A pilot program is progressing for the lamps outside Bliss Hall on campus.”
Another practical approach to harvesting solar energy from pavement is to embed water filled pipes beneath the asphalt and allow the sun to warm the water. The heated water could then be piped beneath bridge decks to melt accumulated ice on the surface and reduce the need for road salt. The water could also be piped to nearby buildings to satisfy heating or hot water needs, similar to geothermal heat pumps. It could even be converted to steam to turn a turbine in a small, traditional power plant.

Read the rest at Physorg

World’s Largest Wind Farm Starts Sprouting

- Adam Clare

Britain has started construction on the world’s largest wind power generating installation. This will be a massive increase in renewable energy hitting the power grid in the UK – and a benefit for all thanks to less pollution.

Check out the video on the project:

The 100 turbines, each measuring more than 300ft, will power more than 200,000 homes. It will increase the amount of energy generated from offshore wind in the UK by a third to 1,314MW, compared to 1,100MW in the whole of the rest of the world.

Mr Huhne said the UK is leading the world in an exciting new technology that will cut carbon emissions and boost green jobs.

Read more at The Telegraph

Sustainable Bus Shelter

- Adam Clare 1 Comment

Waiting for the bus is not the most exciting thing to do in the world, but it is a very necessary one. (And let’s face it waiting for a bus and reading a book is better than starring at a license plate in front of you during a traffic jam.) Designer Tiffany Roddis has come up with a bus shelter that is better than most and is also good for the environment.
Bus shelter

The stylish new eco friendly bus stop will attract new tourists and new custom to lower pollution from existing car owners. The frustration of late buses and complicated timetables can now be reassured by the new colour coded main head-stream. It’s easy-read route finder can accommodate everyone, comforting users that they can arrive to work, school or general destinations on-time by guaranteed GPS signals.

Here’s Tiffany’s project page.

A Permaculture Garden Pool

- Adam Clare

Permaculture is the idea of contained sustainable agriculture that requires no external inputs – all energy and required input is generated by the permaculture system. Some enterprising people have turned their backyard swimming pool into a permaculture setup that is based around aquaculture.

Watch the video for some neat views and an explanation of the system. You can also find out more from the garden pool website.

The garden pool combines:

solar power – harnessing and storing the sun’s energy
water conservation – using less water and recycling waste water
poultry farming – raising chickens
aquaculture – raising tilapia fish
hydroponic gardening – growing fruits, veggies, & herbs without soil
organic horticulture – using natural methods to control garden pests
aquaponics – the symbiotic cultivation of produce and fish in a recirculating hydroponic environment.
biofiltration – natural water filtration method using biochemistry and duckweed.

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