Archive for the ‘Home Energy’ category

Obama’s Idea of Clean Energy: Nuclear Power?!

February 25th, 2010

In a recent speech given at a jobs training center for energy hardware and software in Lanham, Maryland, President Obama announced controversial decision to break ground on the first nuclear power plant in 30 years.  Obama addresses both sides of the environmental and economic debate surrounding clean energy.  A major point he makes is that  nuclear power is cleaner for the air: it will prevent 16 million tons of carbon dioxide emission each year, the amount that a coal plant of similar scale would produce.  This is the equivalent of taking 3.5 million cars of the road.  Using more dubious logic, Obama states that our “competitors”, referring to other nations such a France and China, are building nuclear plants, and creating jobs for their citizens, and we need to keep up with them to keep the economy strong.

What’s your opinion of Obama’s energy strategies?

A Grammy for Green Tech: The Clean Tech Open

February 4th, 2010

Did you watch the Grammy Awards this week?  I did.  It got me thinking: they should have awards like this for every profession, especially green tech!  One web search later, I found they exist! The award ceremony is called the Clean Tech Open, and it was most recently held in San Fransisco, featuring the latest green thinkers from every section of the US.  Recently Popular Mechanics did a feature article of a few prize winners:

Green Building Award: BottleStone

“…a combination of clay, cement, and old glass that looks uncannily like real granite, but takes much less energy to produce…”

Transportation Award: ElectraDrive

“…ElectraDrive aims to make electric conversion more accessible to the masses with its one-size-fits-all conversion kit. The kit’s designed to turn just about any car into an EV, whether it’s a sleek convertible or a hulking truck—you just take your car’s gas drivetrain out and put the company’s ElectraMount module in…”

Energy Efficiency Award: Viridis Earth

“…Viridis Earth manufactures $350 retrofit devices that can make your old a/c unit an energy-efficient wunderkind. One device cuts an air conditioner’s energy consumption by 20 to 30 percent, a reduction so substantial that the retrofit typically pays for itself in less than a year…”

Renewables Award: Focal Point Energy

“Lots of companies that use hot water or steam for manufacturing rely on gas or electricity to generate their heat. But it’s much more efficient to gather sunlight and use it to heat the water directly…  “To collect the heat, we use a reflective membrane made out of a Mylar-like material,” says Howard Harrenstien… The reflector focuses incoming sunlight into a concentrated beam, which can then be aimed at water-filled containers to make the contents boil.”

Green Building Award runner-up: Solar Red

“…By devising a system that can be put up by the same guys who nail on your roof tiles (no professional solar installer required), Solar Red has succeeded in cutting the cost of home solar by 25 to 50 percent…”

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Europe Shows the Way to Energy-Efficient Design

January 12th, 2010

From the Matter Network:

After the EU signed Kyoto, requiring it to reduce carbon emissions 8% below 1990 levels by 2012, many products and design changed there, diverging from US standards. Cars, for example, became smaller, lighter; and more fuel efficient. Even US automakers not known for efficiency make 62 MPG cars for Europe. Germany and Spain introduced Feed-in Tariffs that paid homeowners to make solar power on their roofs.But most interestingly, for Americans now considering energy efficient retrofits with a new “Cash for Caulkers” program being considered, a whole new industry was created by the need to supply new energy efficient building innovations. Energy efficient glass.

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GreenBeat: Al Gore says Smart Grid part of ‘the single largest solution’ to climate change

November 23rd, 2009

al-goreNobel Prize winner and former vice president Al Gore gave a wide-ranging, passionate talk at VentureBeat’s GreenBeat 2009 conference yesterday in San Mateo about combating global warming. We already liveblogged Gore’s talk, but for folks who don’t want to read the blow-by-blow description, here’s a summary.

Perhaps the most significant point: That energy efficiency is “the single largest solution to the climate crisis,” and the Smart Grid will “play a crucial role” in achieving that efficiency.

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Energy From Thin Air

October 7th, 2009

In our pursuit of green, clean energy it seems that we are going back to basics. Over five thousand years ago sailors used wind for travel and millers harnessed it to crush grain into flour.

Wind power is growing exponentially in this country.  Over the last five years wind power has quadrupled making the U.S. the leading producer of wind energy with 25,176 plants.  Over the next five years 40,000 more turbines will be installed many of which will be replacing older with more efficient models.

Even in the face of a global economic crisis, wind companies are hopeful and intend to replace 45% of the outdated models by 2015.  Wind companies are aiming to produce 20% of our nation’s energy by 2030 all of which will be nearly pollutant free.  Although they are clearly planning long term they still bring gale force power to today’s world.  Their growth in 2008 channeled some 17.7 billion dollars into the economy and in the first quarter of 2009 alone prevented 52 million tons of carbon dioxide from ever reaching the atmosphere.  Wind power and its applications will certainly blow you over.

Iceland is a Hot Spot for Clean Energy

October 7th, 2009

iceland-geothermal-to-thaw-frozen-economy_1How much potential does geothermal energy, a cheap and renewable energy source, have to meet America’s clean energy needs?

According to NPR.org, geothermal energy could bring clean power hundreds of millions of homes and factories worldwide.

Oil sources are lessening and are growing increasingly more expensive. The people are pushing for greener alternatives.  With all this brouhaha about going green a few scientists peeped up about going “red”.  Their “red” solution is harnessing red hot magma for geothermal energy.  Geothermal energy is renewable and its factories produce almost zero greenhouse gas emissions and scientists in Iceland have successfully harnessed the power mother nature herself. Iceland sits on top of the schism of the Eurasian and North American tectonic plates along what is known as the Mid-Atlantic ridge.  This ridge feeds some thirty volcanoes magma as the two plates rip apart. Icelandic scientist use the old adage, “where there is smoke there is fire,” with respect to how they harness this awesome, primal energy source.  Surface volcanoes are like beacons indicating a “hot spot” or source of magma for the volcano.  Geologists then carefully drill deep wells over these hot spots.  Water and steam are launched forth, although not instantaneously, from the wells like man-made geysers.  The steam is then stripped of impurities and pumped into turbines that power generators that create electricity.  The hot water can be guided through pipes into radiators to heat homes and businesses.

95 percent of the homes in Iceland are already heated with geothermal energy, which is 5 times less expensive than oil heat.  Where might we see geothermal energy used in the US? Perhaps in Northern California, which has the world’s largest hot spots with their natural geysers. Beyond that, there are not enough hot spots in America to power the entire country as Iceland does.  Hippies need not break out their protest poster boards just yet although scientists at MIT estimate that geothermal energy could power up to 10 percent of the country.

Human Waste is Underrated

September 18th, 2009
Learn from Elmo, and turn you human waste into renewable energy.
Learn from Elmo, and turn your human waste into renewable energy.

What do you do with your human waste? Well, if you’re no fun you probably just flush it down the toilet, re-enacting what you think is “normal” from what you’ve learned from the rest of society. But now, Frank Sinton, a tech entrepreneur and founder of PMC BioTec, says it’s time to break this silly social norm, stick it to the man, and save some money.

America spends $5 billion a year dealing with sludge. Biosolids producers pay hundreds of dollars a ton to remove it, quickly filling landfills or other means of disposal, Sinton said on Sept. 15 at the AlwaysOn Going Green Conference in Sausalito, California. The scope of the globe’s sludge problem is mindboggling. Every year, cattle feedlots produce more than 150 million tons of animal waste; the U.S. and Europe together generate 40 million tons of sludge from sewage treatment; and food production waste weighs in at a staggering billion tons per year.

So what is Sinton going to do about it? He and PMC have invented a $2 million machine similar to a giant port-a-potty that takes in sludge, mixes it with bacteria, or renders the organic matter into methane gas, an energy source that can offset the high power requirements of many biosolid treatment facilities.

Read more from Daily Finance.

Farmer Invents Solar-Powered Lawn Mower

September 18th, 2009

091309r2aPeople are amazing these days. Last December, a 70-year old Indian woman gave birth to her first child. And now, just this past week, although not as physically impressive, a 70-year man from Colorado invented a line of solar-powered lawn equipment. So much for moving to that lakefront property in northern Florida.

Tom Lopez, the man behind the invention, lives on 120-acre Lone Hawk Farm just west of Hygiene, CO. With that much land to cover, it makes perfect sense to create a solar-powered lawn mower. And the best part? It wasn’t even that difficult to make.

“That’s the thing about this stuff — it’s not rocket science,” said Lopez, a 1962 University of Colorado-Boulder graduate with a degree in aerospace engineering. “It just uses standard technology.”

Lopez has built several mowers and tractors by himself, and is working with another company on mass-production. That’s good timing, because after being featured in a national magazine, Lopez is getting calls from all over the country.

“One local (customer), and the rest are nationwide,” Lopez said. “I’ve even got one in Alaska.

One Colorado farmer’s invention could go a long way to decreasing pollution all over the world.

Read more from the Reporter Herald.

An Energy Everyone Can Help Provide

August 11th, 2009

urine-hydrogen-fuelPretty soon we will all be able to power our homes and cars just by taking a trip to the bathroom.

According to the scientists at the University of Ohio, it is possible, using a nickel based electrode, to create large amounts of cheap hydrogen from urine that in turn, can be utilized in hydrogen fuel cells.

This utilization of hydrogen as a source of power is one that is being extensively researched with everything from hydrogen fuel cell cars to hand held personal devices being powered by the most common element in the universe.

It is however, a complex process. As well as being highly flammable, storing pure hydrogen requires high pressure and low temperatures. Currently, new nano-materials with high surface areas capable of absorbing hydrogen are in production, but not on a large scale.

The science behind utilizing urine is to do with chemically binding hydrogen to other elements, such as water, to make it easier and safer to store and transport.

By inserting a special nickel electrode into a pool of urine and then applying an electrical current, you can release hydrogen gas. The current prototype measures 3x3x1 inch and can produce up to 500 milliwatts of power.

Read more from NextGenPE.com

The Key to a Battery-Powered House

August 4th, 2009

house-battery-470-0709Imagine a life where you would never have to deal with PG&E ever again. Sounds good, right? Soon it can actually become reality.

Without a way to store their power, no number of solar panels will free a home from the electrical grid. Until now. Researchers at Utah-based Ceramatec have developed a new battery that can be scaled up to store 20 kilowatt-hours—enough to power an average home for most of a day.

An easy sell for solar users, but it could also allow the grid to stockpile energy during less expensive off-peak hours. The new battery runs on sodium-sulfur—a composition that typically operates at greater than 600 F.

“Sodium-sulfur is more energetic than lead-acid, so if you can somehow get it to a lower temperature, it would be valuable for residential use,” Ralph Brodd, an independent energy conversion consultant, says. Ceramatec’s new battery runs at less than 200 F.

Ceramatec says that batteries will be ready for market testing in 2011, and will sell for about $2000.

Read more from Popular Mechanics.