What Is a Biodigester?

Perhaps you have heard about these and how they are a part of the solution to global warming. And perhaps you have also heard that Desert Hills Dairy Biodigester has begun plans and acquired land to construct the very first biodigester in the State of Nevada at Desert Hills Dairy in Wabuska, near Yerington, Nevada. But what the heck is it? And how can it help?

Biodigesters capture methane from dairy cattle to generate clean electrical energy! I know this sounds amazing but the problem created by cattle poop on meat and dairy farms is outrageous and dangerous and must be mitigated. You are aware, I am sure, that cattle poop is sold as manure for gardening and makes a wonderful fertilizer. Now, take the step mentally, from the energy and heat created by fertilizer to the energy required to make electricity. It’s really that simple.

The methane captured by the biodigester is enough to create a highly nutritious and non toxic liquid fertilizer, a high quality mulch by product that generates enough power to run both the digester and the dairy. This mitigates an enormous amount of the methane generated on the dairy and takes that much CO2 out of the atmosphere. Now, if we can just get them running on every farm and cattle ranch in the country.

According to the CEO of DHDB, Dr. Micheal Ganz, “Desert Hills is the largest and best managed dairy in Northern Nevada. We will use proven digester technology developed by GHD, Inc. in Wisconsin to obtain maximum yields from this installation.” Quote obtained online from Reuters.

Studies have proven that the methan produced from dairy cattle, in particular, has a greenhouse warming effect 21 times carbon dioxide. It has been established that a herd of 10,000 cows can produce as much as a billion cubic feet of methane annually. This information comes from studies performed at the University of Texas and from statistics compiled by the Midwest Rural Energy Council.

“At a time when the Nevada dairy industry has been severely damaged by the recession, income from a biodigester can make the difference between economic profitability and failure,” Dr. Ganz added, according to Reuters.

This is all well and good and I am very pleased with the ingenuity and effort that went into this device. American business will find a way as long as there is money and good will in it. However, if the climate bill gets passed as it is right now, this won’t make much difference. They’ll end up using the offsets from the diary farms to mitigate carbon creation at other locations, including China and India. As good as the biodigester is and I give kudos to those folk that invented it and are trying to use it, it will have nada impact on this mess if we don’t make everybody use it and not allow trade offs. Keep the pressure on. Write your congressman or woman and let them know how you feel.

Note: DHDB (Desert Hills Dairy Biodigester) is a subsidiary of Carbon Bank Ireland, LLC.

Technorati Tags: carbon, cattle, dairy farms, electricity, energy, farming, global warming, manure, renewables, sustainable, waste

 

Florida Cities Tap Landfills For Energy

In Florida, 12 waste-to-energy facilities from Miami to Panama City process nearly 20,000 tons of municipal solid waste each day while continuously producing over 500 megawatts of clean, renewable power. This amount of waste is enough to fill a football stadium, imagine that! The Tampa Bay area is home to four waste-to-energy facilities, located in the City of Tampa and in the counties of Hillsborough, Pinellas and Pasco. Without these facilities, local governments would be faced with the daunting task of siting large landfills near rapidly growing residential communities. The issue of this development is another problem to be addressed in a different forum but there is no doubt that this landfill to energy idea is a good one.

I first heard about this idea several years ago when a small county northwest of where I reside started pumping landfill gas through pipes and converting it to energy. In fact, I later heard a follow up that claimed the entire city was running on this power alone. Amazing. Not only is this greenie meanie but it’s cheap, too. These waste-to-energy projects eliminate 90% of the waste that might have ended up in a landfill. But it isn’t nearly enough, as you can imagine, because landfills throughout the state are reaching capacity faster than anticipated. It is becoming increasingly difficult to expand landfills or open new ones as residential development encroaches on once-remote landfill sites. People are already living in homes where they can smell garbage 24/7 in various lower income areas around the state. Florida’s current population of over 17 million is expected to reach almost 23 million by the year 2020, bringing even more challenges to managing municipal solid waste.

 

Revolutionary Algae Biofuel Project Finally Begins

A company called “LiveFuels” has announced the start of pilot operations at the company’s test facility in Brownsville, TX. The facility consists of 45 acres of open saltwater ponds and will be used for research on optimizing algal productivity and increasing the rates of conversion of biomass into renewable oils. LiveFuels grows a robust mix of native algae species in low-cost, open-water systems. This is in stark contrast to may other companies who grow singular cultures of algae and often genetically modified strains. As a natural, environmentally friendly business, LiveFuels harvests the algae by using “algae grazers,” which includes such natural harvesters as filter-feeding fish and a variety of other aquatic herbivores. This in place of expensive and energy-intensive mechanical equipment. As a result, these species can easily be processed into renewable oils and many other valuable co-products.

To date, LiveFuels has filed ten U.S. patents for its proprietary approach to growing and harvesting algal biomass. At the Brownsville facility, the company will conduct research on optimizing the productivity of natural aquatic ecosystems through biological and environmental conditions. The results will be used for an expansion to full-scale commercial operations along the coast of Louisiana. And all of this is being done in this revolutionary, environmentally friendly fashion. Kudos. to LiveFuels.

 

Smart Option: Portable Solar

Many of us have experienced the frustration of having a cell phone or MP3 player go dead and being away from a power outlet to charge the batteries. Actually, this isn’t a solely current problem, either, as I recall listening to “dragging” cassette players and static hazed radios many years ago, when I used battery chargers and rechargeable batteries. Being caught on a 10 mile hike with a dead radio is a big drag. This is where portable solar is making big inroads and offering relief. Even if you’re not a big techno nerd with a boombox on your shoulder or an MP3 plug in your ear, you may have concerns about getting off the grid or just saving money on batteries in general. Even you should consider portable solar. Thanks to technology improvements and lower production costs for photovoltaic (PV) cells, you can now harness sunlight at home or on the road to power a variety of products while reducing your environmental impact at the same time.

PV cells generate varying amounts of electricity based on their size and composition, and on the amount of incoming sunlight. Even so there are a lot of products for which sunlight provides a viable and affordable alternative power source and these are already available on the market. If you haven’t purchased one yet or maybe even haven’t even shopped these items, here is a brief list of what I found available today:

 

Is Clean Coal Possible?

Duke Energy’s Integrated Gasification Combined-Cycle (IGCC) plant in Edwardsport, Ind. is taking a significant step forward in the use of cleaner coal technology. Notice that I say “cleaner coal” and not “clean coal” because the former is possible while the latter is not. But in the noble effort of creating the former to help meet the country’s future energy requirements, the first major pieces of equipment have arrived. Using GE IGCC technology, the plant is expected to be the largest cleaner coal IGCC facility of its type in the world when it is complete. An Integrated Gasification Combined Cycle, or IGCC, is a power plant using synthesis gas (syngas). This gas is often used to power a gas turbine whose waste heat is passed to a steam turbine system, also referred to as a combined cycle gas turbine.

 

Tech Startup Better Place Expands in Hawaii

Better Place, an electric car company just starting to really expand, is developing a $200-250 million network in Hawaii, with 50,000 to 100,000 electric-car recharging stations to be in place by 2012. The $100 million project comes as a three-part effort to radically overhaul the state’s energy diet. Hawaii has an “extreme oil addiction,” according to Gov. Linda Lingle. Ninety percent of her state’s energy comes from imported oil, costing about $7 billion a year. A third of that oil makes its way into automobile tanks as gasoline. With gas on the islands still hovering around $2.65, Hawaiians spend more money on their cars (taxes, insurance, and fuel) than Americans on average in any other state.

Shai Agassi, founder and chief executive of privately owned Better Place, said the cost is an estimated “ballpark” range and that investors have yet to be lined up for the all-island project. Better Place has signed a memorandum of understanding with Hawaiian Electric Companies. Power spots will be first to pop up all over the island, including parking lot locations and stations in the downtown areas.

According to the Wall Street Journal: “Under the plan, consumers would buy or lease electric cars, and Better Place would supply recharging services and batteries. Consumers would have a choice of buying mileage plans — which would include recharging services and battery swaps — or being guests on the network and paying for each battery charge”.

The company will continue to work with automakers to design electric cars that fit Hawaii’s driving and traffic patterns. They are saying that Nissan-Renault has already signed on to make vehicles compatible with the proposed network. The other automakers may soon join in. The clever upstart plans to offer electric transportation as a service with drivers paying to access a network of charging stations, much in the same way they pay for access to mobile phone service. Better Place has been selected as one of the “Fifty Best Tech Startups” by Business Week.

Nissan-Renault has said they will build the electric cars, and mass market availability in Hawaii is expected in 2012. According the map on their website, the company is now operating in the United States, Israel, Denmark, Australia and Japan. Find out more about Better Place here.

Technorati Tags: automobiles, cars, electric, gas, green, renewable, sustainable, transportation

 

Tearing Down Forests For TP

There is an alarming environmental situation surrounding the popularity of ‘ultra-soft’ toilet paper. In order to obtain the soft, fluffy, quilted texture that has become preferable to many consumers, manufacturers use fiber from standing trees and not recycled material. This disturbs me greatly because it means that toilet paper is made from ancient forests, old growth forests, virgin forests, second growth forests, natural forests, high conservation value forests, temperate forests, tropical and sub-tropical forests and boreal forests. All areas of the planet in great peril of decimation and which will have profound effects on the air quality of the environment.

The New York Times has reported: “Although toilet tissue can be made at similar cost from recycled material, it is the fiber taken from standing trees that help give it that plush feel, and most large manufacturers rely on them… Although brands differ, 25 percent to 50 percent of the pulp used to make toilet paper in this country comes from tree farms in South America and the United States. The rest, environmental groups say, comes mostly from old, second-growth forests that serve as important absorbers of carbon dioxide, the main heat-trapping gas linked to global warming. In addition, some of the pulp comes from the last virgin North American forests… Greenpeace, the international conservation organization, contends that Kimberly Clark, the maker of two popular brands, Cottonelle and Scott, has gotten as much as 22 percent of its pulp from producers who cut trees in Canadian boreal forests where some trees are 200 years old.”

 

Solar Energy for Low Income Homes

In a generous move towards the forwarding of green energy initiatives, Wells Fargo and Co contributed a whopping $80,000 to GRID Alternatives. Grid Alternatives is a nonprofit that installs solar electricity systems for low income homeowners. The donation from Wells Fargo was earmarked for expansion of the Solar Affordable Housing Program and to build a model for this housing concept that can be replicated nationwide.

This is one of the most valuable contributions I have heard of thus far. This idea, GRID Alternatives, is a viable and tremendously useful solution for the financial outreach of solar energy. It is currently an expensive alternative to oil that most low income people would consider beyond their reach while these are exactly the people who need it most. Thus far, GRID Alternatives has installed over 200 solar electric systems in low income homes and this is currently generating over 3 million in clean renewable power. This effort alone reduces greenhouse gas emissions by 10,000 TONS a year.

“We’re committed to supporting clean, renewable energy and have invested in large-scale wind and solar projects nationwide,” said Barry Neal, director of Environmental Finance at Wells Fargo. “Our contribution to GRID Alternatives supports the deployment of solar electric systems to low-income families who can benefit the most from related cost savings in their electricity bills.”

In their efforts, GRID Alternatives hold down costs by training and leading teams of community volunteers in the job of installing these solar electric systems for low income homes. The organization launched its Solar Affordable Housing Program in 2004 and currently operates in communities in Northern and Southern California in partnership with local governments and nonprofits like Habitat for Humanity.

Wells Fargo integrates environmental responsibility into its business practices and operation. This year it launched a Solar Home Program to support the development of new solar homes in California. Learn more at Wells Fargo Environment.

Technorati Tags: affordable, charity, conservation, electricity, energy, environment, green, grid, poverty, renewables, solar energy, sustainable

 

Hydroenergy Vortices Imitating Fish

I have another cool method of generating energy. There are researchers who are trying to harvest energy from various sources that are now working with a power generator that works in slow moving currents where traditional turbines have not worked effectively. This means that tidal streams and slow moving rivers in the US could generate something like 140 BILLION killowatt-hours per year or about 3.5% of our entire electricity demand. This is all according to the EPRI (Electric Power Research Institute).

In the past, most efforts to tap energy from slow moving current have used underwater windmills that use the force of the lift to turn their blades. This is because we have usually tapped air for energy and use it support boats and other water devices. But when you watch the way fish use water to propel themselves, you realize that they create vortices in the water that allow them to push off and propel themselves forward. This is why they are currently referring to this application as fish as fuel. But it has nothing to do with using actual fish as a source of fuel. Nobody is grinding up fish and putting it in an engine somewhere.

When researchers realized that these natural vortices could be used to drive generators, a new concept for creating energy emerged. A group of researchers have now created a machine called the VIVACE (Vortex Induced Vibrations for Aquatic Clean Energy) and yes I know it sounds sort of funky and even kinda geeky. But the cylinders in this new machine oscillate up and down in actual moving water. This is a first. It is especially exciting because the device works naturally in the marine environment and is non invasive.

 

Solar Power for a Dollar a Watt?

I read an article on Solar Daily that started me thinking. It seems that Photon Consulting has announced the release of it’s new report: “The True Cost of Solar Power: Race to $1/W“. This made me realize that this is what Solar Power has to be about right now. It has to find a way to compete with gas based energy sources and get the price down. I mean, seriously. I gripe about the watt cost on my utility bill when it goes to .06 per kWh, which translates into about .60 a Watt. If it went to a dollar a watt, or .10 a kWh, I’d blow a gasket. So now, when you think about it from that standpoint, you realize that Solar Energy is nowhere near being useful to most of us. Not on my salary, anyways.

But this new report shows solar energy companies are cutting costs at a pace that will soon make solar power competitive with grid electricity in several major global markets. It combines PHOTON Consulting’s in-depth analysis of the solar sector with detailed solar energy cost forecasts to show an industry racing to deliver dollar a watt solar modules that cost a single dollar a watt to install. And this race is necessary if we are going to get serious about solar. The big payout? Well, the companies that win this race, according to PHOTON Consulting, will be able to provide large amounts of clean, competitively-priced electricity.

According to their Managing Director, Michael Rogol, solar should be ready by 2012. In a statement, he is quoted as saying, that “by 2012, companies not able to achieve $1/W through the module level, $2/W through the system level and $0.10/kWh to $.20/kWh for electricity are significantly at risk, because other companies will get there.” I hope that is a promise. Otherwise, the sun will not be a viable energy source at any time in our lifetimes.

Technorati Tags: electricity, energy, grid, renewable, sustainable, solar energy, utilities