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Earlier today, I had the opportunity to visit Intersolar US, the United States’ premier exhibition for solar technology. I learned about a variety of products that are revolutionizing the solar industry, and one of the most interesting was Paradigma’s AquaSystem.

The Aqua solar heating system, first introduced in 2004, works like an additional boiler with a selectable temperature. It is the only solar heating product on the market that can be connected to an existing heating system without any modification. Additionally, the AquaSystem does not require frost protection agents in the winter, as it is protected with warm water if temperatures drop below a certain level.

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SeaGen more than four times the size of next largest tidal turbine

The world’s first commercial-scale tidal turbine, developed by British tidal energy company, Marine Current Turbines, has delivered electricity onto the grid for the first time. In principle, SeaGen works much like an “underwater windmill” with the rotors driven by the power of the tidal currents rather than the wind. Conservative estimates suggest there is at least five gigawatts of power in tidal flows in Britain, but there could be as much as 15GW.

The tidal current turbine, known as SeaGen, has briefly generated 150kW of power onto the grid as part of its commissioning work, ahead of it achieving full capacity a few weeks from now. SeaGen’s power is being intentionally constrained to 300kW during the commissioning phase, but once fully operational, it will generate 1.2MW of clean, renewable energy to the equivalent of 1000 homes. Read the rest of this entry »

T. Boone Pickens has captured America’s attention with his PickensPlan for energy. He recently testified in front of the US Senate and provided them with some excellent information about oil and gas depletion, asked repeatedly for them to continue supplying the Production Tax Credit (PTC) and described how there were perfectly located corridors in the US that were the “Saudia Arabia” of wind.

He has been running advertisements on major media outlets describing a clear challenge - America now sends $700 Billion across its borders every year to purchase oil.

Pickens has a plan to reduce that number and he intends to share the details of the plan during the coming weeks. He has been an oilman all his life; that has made him a strong believer in Peak Oil.

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Representative Jay Inslee (D-WA) has introduced legislation to establish a feed-in tariff (FIT) for renewable energy. Feed-in tariffs have made Germany a solar powerhouse that employs 40,000 people in the solar industry alone, and an estimated 140,000 jobs in renewable energy. FITs have not been a topic of discussion in this country, but now that is sure to change, as the conversation shifts to ways to finance the growth of renewable energy. Renewable Energy World reports that:

“Inslee’s legislation would require utilities — at the request of any new renewable energy facility owner — to enter into a 20-year fixed-rate power purchase agreement. Uniform national “renewable energy payment” rates would be set by the Federal Energy Regulatory Commission at levels that would provide a 10% internal rate of return on investment for available commercialized technologies in regions constituting the top 30^th percentile of renewable energy resource potential in the U.S..”

In plain English, this means that if you install solar PV panels on your home, the utility has to buy the electricity you generate at a higher rate than retail, guaranteeing you a return on your investment. Extending this power purchase agreement for 20 years gives everyone — especially those who want to invest in renewables or start a small business installing solar panels — assurance of return on their investment.

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There is some excitement in the nuclear focused blog world about “The World’s First Commercial High Temperature Nuclear Reactor” based partly on a recent article in Power Engineering by Jana Miller titled “Powering Up A Growing Nation”. This project in Shandong Province will be a unique plant whose reactor heat source is two containers full of spherical fuel elements, each one of which is about the size of a billiard ball.

I am a bit reluctant to call this plant a “first”, but I can get just as excited about the third, 10th or 100th plant in a progressive series of improved plants that should number 1000 reactors or more.

The plant, designated as HTR-PM, will be a 200 MWe pebble bed reactor heated steam plant with two reactors, each with a single steam generator (boiler) feeding a single turbine. The plant will be built in Rongchen City on a site large enough to host series of perhaps 10-12 similar plants. In that area of China, there are hundreds of older coal fired power plants generating 50-300 MWe each.

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The Energy Star Washing Machine vs. The Wonderwash vs. The Basin vs. The Future of Home Dry Cleaning

In this 4-way battle royal to earn the title “The Best Washing Machine for You and the Earth According to Joe”, a variety of factors need to be considered. Water use, electricity use, size of family, and–of course–convenience all need to be given a good look. And even though I am of the mindset that we have way too many unnecessary conveniences in our society, I am aware that some conveniences have proven to be beneficial time savers.

In reading for this post I had to turn to No Impact Man to see what his thoughts were on the subject, because, unlike my familiarity with the reel mower, I have never used an alternative to the washing machine. I was surprised to learn his thoughts.

The laundry machine is the one appliance I believe makes the difference between a life of drudgery and not. If cars are the Devil, as I think they are, then laundry machines are God. Read the rest of this entry »

Their science is impressive, but their timing is dead on. It doesn’t quite seem fair that California has been blessed with the perfect growing climate for some of the world’s best agriculture (and of course, wine) but saddled with a water shortage.

To help the Napa winemakers and wineries worldwide oversee their crop irrigation and management, Sebastian Payen and Thibaut Scholasch, of Fruition Sciences have turned the science of hydration monitoring into an art. The business partners’ techniques come from the marriage of research and technology that they have developed over more than seven years working at prestigious universities and with premier vineyards.

Using a proprietary technology, Fruition Sciences is able to monitor real time viticulture information and deliver the statistics via a web-based application to the winemakers instantly. The ability to monitor the vineyard status in real time allows vintners to make decisions about irrigation and canopy management that can have immediate repercussions as well as a long term effect on the crop.

The team is currently working with winemakers around the world in California, France and Spain to monitor vine conditions. Implementing this technology at some of the large producers worldwide could have an interesting impact on water usage and vine care and maintenance by leaving a little less up to chance and putting a little faith in technology.

We are all familiar with touch-less faucets, which not only decrease infection rates but keep lazy people from letting the water run as they brush their teeth. Great idea, but an idea that requires electrical energy or a battery to run the infrared sensing device. Now Toto, the Japanese company that makes simple, elegant, and water-saving bathroom fixtures, has developed a touch-less faucet that also saves energy.

The EcoPower faucet contains a small turbine inside. The turbine, powered by the water running through the faucet, creates an electrical current that is stored in rechargable cells. The faucets supply the very energy they consume by using the flow of water to spin a high-efficiency turbine to both create and store power. Eco Power replenishes its charge with as few as 5 uses per day, and with as few as 10 uses a day, the backup battery itself is seldom used and can last up to 19 years. Elegant!

Related Posts on Saving Water and Energy:

• Wash Clothes without Water
• Seven Ways to Save Energy by Saving Water
• Teatro del Agua: the Seawater Greenhouse that “Can Change the World”

Not exactly washing without water, but with less than 2% of a normal washing machine. That’s only 1 cup of water for those sweaty gym clothes, grubby kid-wear, and foul socks.

Washing with soap and water has been THE WAY to clean most clothes for so long, it’s hard to imagine reducing H2O by 98%. What this technology lacks in sexy bells and whistles, it gains in implications. Billions of gallons of clean water could be conserved every year simply by adopting this dry cleaning technology. Less water also means less drying, which can add energy savings to those with energy-hungry clothes dryers. Read the rest of this entry »

Though many states and localities are waking up to their water shortages and taking steps to plan for “peak water”, people generally continue to waste water and to ignore the energy-water link. In 2004 the Natural Resources Defense Council did a study in conjunction with the Pacific Institute called “Energy Down the Drain” on how saving water saves energy. We need to do more to spread the word. Here are seven ways to save energy by saving water:

1. Use local water.

Transporting water uses energy, so rainwater harvesting is a serious water-and-energy saver. According to the NRDC/Pacific Institute study “California’s State Water Project (SWP), which transports water from Northern California to Southern California is the state’s largest single energy user, consuming 2 to 3 percent of all electricity. It takes tremendous amounts of energy to pump the water 2,000 feet over the Tehachapi Mountains — the highest water lift of any water system in the world

2. Use less heated water in homes and businesses.

Heating water uses a great deal of energy. Small things magnified a million times over — like washing clothes with cold water or taking shorter showers — saves large amounts of energy.

3. Use energy-saving appliances.

Energy Star appliances will decrease water and energy use.

4. Learn from Australia.

Why reinvent the wheel? Since 2006, when the BBC reported Australia’s biggest drought in 1,000 years, the situation has not improved. In an island nation, this has a tendency to focus the mind, and water-and energy-saving inventions have been pouring forth from that country, while the government introduces policies that save energy and water almost daily.

5. Rethink your bathroom.

Toto, an innovative company from Japan (another island nation concerned about water use) offers an EcoPower hands-free faucet that recharges itself each time it is used.

6. Rip out that lawn and replace it with a rain garden.

Watering grass, fertilizing it with petroleum-based fertilizers, and mowing it with a gas or electric mower…..need I say more?

7. Eat more vegetables and grains; cut down on the beef.

Animal farming takes more energy and water. “Beef production requires large volumes of water–as much as 100 times that required to produce equivalent amounts of protein energy from grains.” (Environmental Health Perspectives, 2002 And the cows are fed from corn that is farmed using energy-hogging fertilizers, insecticides, and fossil fuels.

If you think about it, it’s impossible to separate our energy use from our water use. If we can start thinking holistically about the systems we use in our daily lives — and get our governments to create policies that promote wise use of energy and water, we’ll be more ready for the limits to resources that are only going to increase.

Posts Related to Saving Energy and Water:

All You Need to Know About Water Saving Technology Around the House
Could Wind help Save Water?
Low-Energy Water Desalination From Seawater Greenhouse
Water Crisis: Clean Tech to the Rescue?