Finally ….Sensible Green Nuclear Technology

Finally, someone has spent the time to create a sensible nuclear, green energy source that can be mass-produced.

The Guardian reports today that nuclear power plants smaller than a garden shed and able to power 20,000 homes will be on sale within five years, say scientists at Los Alamos, the US government laboratory which developed the first atomic bomb.  The miniature reactors will be factory-sealed, contain no weapons- grade material, have no moving parts and will be nearly impossible to steal because they will be encased in concrete and buried underground. The reactors, only a few metres in diameter, will be delivered on the back of a lorry to be buried underground. They must be refuelled every 7 to 10 years. Because the reactor is based on a 50-year-old design that has proved safe for students to use, few countries are expected to object to plants on their territory. An application to build the plants will be submitted to the Nuclear Regulatory Commission next year.

The US government has licensed the technology to Hyperion, a New Mexico-based company which said last week that it has taken its first firm orders and plans to start mass production within five years. ‘Our goal is to generate electricity for 10 cents a watt anywhere in the world,’ said John Deal, chief executive of Hyperion. ‘They will cost approximately $25m [£13m] each. For a community with 10,000 households, that is a very affordable $250 per home.’ Deal claims to have more than 100 firm orders, largely from the oil and electricity industries, but says the company is also targeting developing countries and isolated communities. ‘It’s leapfrog technology,’ he said.

The company plans to set up three factories to produce 4,000 plants between 2013 and 2023. ‘We already have a pipeline for 100 reactors, and we are taking our time to tool up to mass-produce this reactor.’

‘You could never have a Chernobyl-type event – there are no moving parts,’ said Deal. ‘You would need nation-state resources in order to enrich our uranium. Temperature- wise it’s too hot to handle. It would be like stealing a barbecue with your bare hands.’

Solar Cells Get to 20% Conversion Efficiency

I am becoming a big fan of solar power as it begins the long march toward parity with current power supplies — I would love to get off the Commonwealth Edison grid and not have to pay that big electricity bill every month.

So I was excited to see today that Suniva Inc. announced that its R&D team has developed several silicon solar cells in its lab with more than 20% conversion efficiencies using its patented combination of cell designs and screen printing technologies.

“Our R&D team already has a solid roadmap in place to further increase our efficiencies. We are excited about Suniva’s continued momentum on the path to make solar electricity cost-competitive with conventional grid electricity.” — Dr. Ajeet Rohatgi, Founder and CTO, Suniva

These high efficiency milestones have been verified by the National Renewable Energy Laboratory (NREL). The efficiency achievement closely follows Suniva’s two recent customer agreements with Germany’s Solon AG and India’s Titan Energy Systems Ltd, together worth approximately US $1 billion. “This demonstrates that Suniva’s advanced technologies in diffusion, surface passivation and contacts can increase conversion efficiency while reducing processing time and maintaining low cell cost,” said Dr. Ajeet Rohatgi, Suniva’s founder and CTO. “Our R&D team already has a solid roadmap in place to further increase our efficiencies. We are excited about Suniva’s continued momentum on the path to make solar electricity cost-competitive with conventional grid electricity.”


Solar as Alternative?

I am beginning to look into solar options but I live in Illinois (never really known as the land of the uninterrupted sun) so I wanted to find out how to calculate whether an investment in solar makes sense in Chicago.  I learned that the total solar energy available to the earth is approximately 3850 zettajoules (ZJ) per year, while worldwide energy consumption was 0.471 ZJ in 2004, according to the US Department of Energy. Even if you aren’t a solar panel installer, you can tell that there’s way more solar energy available than the world will ever need.

Doing my homework, I found FindSolar.com, a Web site sponsored by the U.S. Department of Energy, the American Solar Energy Society, and the Solar Electric Power Association.

solarcells.jpg

To get started, select your state and county, power company, and the type of system you’re interested in-whether it’s electric, hot water, spa/pool heating, or space heating/cooling-as well as your average utility expenditure. The online calculator then determines the average cost of a solar-electric system based on the data you’ve provided, plus any state or local rebates you qualify for. If you’re ready to start pumping out those rays, you can contact solar installers and distributors in the site’s directory for quotes or additional info.

Global…..Cooling?

This past April, the USA had an average temperature of 51 degrees, which was one of the coolest in the last 114 years — where is the global warming? Look at the data here.

The Sustainable House

I am a big fan of using the sun and wind as energy sources rather than paying the local utility, and working to create a sustainable house. I love to imagine what one of these “energy-free” houses would be like and I think I found one in Enertia. I saw them tonight on the Science Channel.

In the Enertia Building System, solid Energy-Engineered wood walls replace siding, framing, insulation, and paneling. An air flow and access channel, or Envelope, runs around the building, just inside the walls – creating a miniature biosphere. Here solar heated air circulates, pumping and boosting geothermal energy from beneath the house, storing it in the massive wood walls. Thermal inertia causes the house to “float” between the cycles of night and day, and even between the seasons.

Many aspects of the Enertia® House are unusual and innovative – but backed up by science, common-sense, and prototype homes across America. In fact, each aspect listed below increases the energy efficiency of the building. The effect is Synergistic – equal to more than the sum of the parts. The Enertia® House can make more energy than it uses!

What do you think? I love this idea. Could you do one of these in Chicago?

“Green Houses”: The Inconvenient Truth

As energy prices continue to increase, I have searched for ways to reduce our cost of energy in our house — I am currently looking at solar power, wind energy and geothermal (although running a 300 foot deep pipe in the backyard doens’t seem feasible in the city) . If you like this stuff, check out Chicago company Aerotecture for their urban windmills! I came across an article that looked at two different approaches to home building and energy consumption. Look over the description of the following two houses and see if you can tell which one belongs to an environmentalist:

House Number One

So I find articles about the direction oA 20 room mansion (not including 8 bathrooms) heated by natural gas. Add on a pool (and a pool house) and a separate guest house, all heated by gas. In one month this residence consumes more energy than the average American household does in a year. The average monthly bill for electricity and natural gas runs over $2,400. In natural gas alone, this property consumes more than 20 times the national average for an American home. This house is not situated in a Northern or Midwestern “snow belt” area. It’s in the South.

House Number Two

Designed by an architecture professor at a leading national university. eco-homes180.jpgThis house incorporates every “green” feature current home construction can provide. The house is 4,000 square feet ( 4 bedrooms ) and is nestled on a high prairie in the American southwest. A central closet in the house holds geothermal heat-pumps drawing ground water through pipes sunk 300 feet into the ground. The water (usually 67 degrees F. ) heats the house in the winter and cools it in the summer. The system uses no fossil fuels such as oil or natural gas and it consumes one-quarter electricity required for a conventional heating/cooling system. Rainwater from the roof is collected and funneled into a 25,000 gallon underground cistern. Wastewater from showers, sinks and toilets goes into underground purifying tanks and then into the cistern. The collected water then irrigates the land surrounding the house. Surrounding flowers and shrubs native to the area enable the property to blend into the surrounding rural landscape.

House number one is outside of Nashville , Tennessee; it is the abode of the “environmentalist” Al Gore. House number two is on a ranch near Crawford, Texas; it is the residence the of the President of the United States , George W. Bush.

Alas, this is an “inconvenient truth” for environmentalists who can’t walk the talk.

Background

According to the Associated Press, the Gore’s 10,000 square foot Belle Meade residence [Read more...]