Welcome to the Energy Blog


  • The Energy Blog is where all topics relating to The Energy Revolution are presented. Increasingly, expensive oil, coal and global warming are causing an energy revolution by requiring fossil fuels to be supplemented by alternative energy sources and by requiring changes in lifestyle. Please contact me with your comments and questions. Further Information about me can be found HERE.

    Jim


  • SUBSCRIBE TO THE ENERGY BLOG BY EMAIL

After Gutenberg

Clean Break

The Oil Drum

Statistics

Blog powered by Typepad

« Thin-Film solar Market Soaring | Main | GM May Make 60,000 `Volt' Electric Cars in First Year »

August 23, 2007

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d83451b5da69e200e54ee0472e8834

Listed below are links to weblogs that reference University of New Hampshire to get 80-85% of its Energy from Landfill Gas:

Comments

Mark

This is interesting, but I wonder as to its life expectancy. It would seem that at some point, the gas pressure would begin to fade.

Kit P

Landfill gas is an excellent and economic source of renewable energy. Unfortunately the press release does not provide enough information about the merits of the project.

Carl Hage

Lots of landfills collect methane to generate power-- a good thing, though not a huge source of power.More interesting, perhaps, is the Cow-Power choice in nearby Vermont, collecting dairy farm waste.

What I don't understand is why spend $45M on a pipeline instead of putting a generator at the landfill (like everyone else), then using a wire to transmit the electricity. I guess so UNH can have an accounting of carbon emissions separate from everyone else.

Rob

The reason is cogeneration: The waste heat from power generation is being used for heating, which can't be done efficiently if the generator is offsite.

JohnBo

Locating the generator at the load also eliminates 2 substations and a transmission line.

Also, this keeps Waste Management out of the electric utility business which is a big maintenance and reliability pain.

It sounds like a good deal for everyone. It would be interesting to know how long the gas will last.

Dr. Hussain Alrobaei

The benefits of generation of electricity from waste biogas are multi-faceted. Potential landfill related emissions to air are reduced and green power is generated, off-setting the need to consume fossil fuels to provide an equivalent amount of energy. The recent studies have proven the perfect technical feasibility of the utilization of the gas generated in the landfills. They have also shown that excellent levels of yield can be reached with the use of simple technologies without compromising the quantity and the productivity of the system, viabilizing an energetic alternative available in the surroundings of all urban conglomerates, specially those of the Third World. However, new landfill sites can be specially developed in a configuration which encourages anaerobic digestion. In these new sites, the pipe system for gas collection is laid down before the waste is deposited, thus optimizing the gas output, which can be as high as 1000m3 per hour and last up to 20 years. The landfill gas is generally used for electricity generation, using large internal combustion engines to drive generators of around 500kWe generators to match the normal gas supply rates of around 10GJ per hour (depending on the size of the landfill).
It is very important that we stress that the implementation of any project on landfill gas recovery, wherever in the world, must be preceded by careful studies of its feasibility; local peculiarities should be evaluated in order to determine the technologies to be used and whether the project is viable both economically and strategically.But one thing is for sure: the waste landfill gas is an energy source that cannot be left aside for it is, generally, much more economic than any other fuel currently available, provided that the consumption sites are near the landfills.

Kit P

Dr H, does phd stand for pile it high and deep?

While landfill gas (LFG) is one of the best sources of renewable energy, 95% of the environmental benefit is achievable by just flaring the gas. Using poor quality LFG (or gas from a WWTF) is a major engineering challenge and requires a good O&M program.

Any landfill that produces enough LFG to economically produce useful energy represents a failure in solid waste handling. A win-win -win (multi-faceted as Dr H would say) project would be combing 'cow power' and high carbon waste recycling (you know, paper).

An interesting think happened at a dairy farm that used recycled paper for bedding. When they added an anaerobic digester (AD) to treat manure, biogas production was so high that a second generator was added. I think this can be explained by considering enzymes in dairy cow manure, the physical properties of paper or wood shavings to give more places for bacteria to grow, and getting the carbon/nitrogen ratio right. This produces more energy and high quality compost. Both products represent capturing polluting waste streams. Win-win -win but hard to explain.

Paul Dietz

The biogas market is one that Capstone Turbine moved to after their initial focus on hybrid turbine automobilies fizzled. There's a school not far from where I live that gets its power and heat largely from a nearby landfill, combusted in these microturbines. One thing they have to do is clean up the gas to remove siloxanes (silicon-containing volatile compounds) that would otherwise cause silica deposits in the turbines.

Kit P

I was not aware that Capstone has considered a putting a turbine in a POV. Maybe they have not heard of angular momentum. POV should have the same turning characteristics in both directions.

Paul Dietz

Kit P: apparently this was not considered a problem. The notional design (with the now-defunct Rosen Motors) even included a separate flywheel instead of a battery for energy storage.

Capstone has had some of their microturbines installed in hybrid buses and trolleys, although not beyond a pilot project scale.

Kit P

Microturbines installed in hybrid buses and trolleys may not have the same issues as a POV

Michael Reilly

Did you consider any hazard associated with bringing NMOCs (Non-Methane Organic Compounds) onto campus? Or did you consider them all consumed in the combustion? What about if there is a gas leak?

BHAVIK

Use Do Follow Links Only
New Hampshire Drug Treatment
New Hampshire Drug Treatment
--------------------------------------------------------------------------
bhavik

williamgeorgemic

Wow!! This blog and the topic contained in this blog is awesome. I stayed more than 2 hours and got various information about landfill gas. Thanks for sharing this kind of topic.
=======
george
new hampshire drug rehab

Account Deleted

I think this site is providing information about drug intervention. I thin drugs are very dangerous in the world. I think this site is to be useful to acknowledged to the public. I fully recommended to public about this site.
=========================
rishwa
visit
wyoming drug rehab

Christian Louboutin Pumps

Landfill gas is an excellent and economic source of renewable energy.but i want to learn more about it.

vertical wind turbine

VAWTs (vertical axis wind turbines) are both efficient and quiet, making them more suitable for energy production in residential areas than previous wind-based renewable energy technologies. Many current VAWT models resemble eggbeaters, with two blades attached to a central shaft, which is in turn anchored in a power generator. Others have a number of large, flat blades protruding from the central axis; and still others have a helix of extremely light plastic surrounding the axis. They typically stand between two and five feet in height and the best ones are able to attain 30 – 60% efficiency, depending on where they are located.

Brett Allen

Air & Gas Systems, Inc. specializes in the engineering, manufacturing and installation of standard and custom gas compressor packages for Biogas recovery. With today's renewable energy tax credits, the incentives have never been better to turn biogas into energy. We are a pioneer in the design and fabrication of gas blower and vacuum systems for many environmental applications, from biogas energy to other cogeneration applications. Check us out at www.AirAndGas.net

business management university

ooo, 45 million, that's a lot of money, however I think the project it quite useful.

dental health services

this part of blog "EcoLine will also have a major impact on UNH’s carbon dioxide emissions. It will reduce the university’s greenhouse gas emissions an estimated 67 percent below 2005 levels and 57 percent below 1990 levels." was very interesting, thank you!

Dissertation Structure

Enormous material from you. I had examined your matter previously and it’s presently too remarkable.

large designer handbags

hey,this is one of the best posts that I’ve ever seen; you may include some more ideas in the same theme. I’m still waiting for some interesting thoughts from your side in your next post.

wholesale gucci

Thank you for providing the perspective. I just read a part of the article, so I don't know much what to say. Good luck for the new member!

treatment of hemorrhoids

Good post, I like to leave comments because it allows bloggers to become more engaged and for the opportunity to perhaps learn from each other.

scottsdale tummy tuck

However, those of you who cannot do it for 30 minutes at a stretch, take small breaks after every 10 minutes while performing them.

generique

I really want to take part in your online life) And so I'll leave. comment on your blog.

dissertation proposal

I feel strongly about it and love learning more on this topic. If possible, as you gain expertise, would you mind updating your blog with more information? It is extremely helpful for me.

logo design competition

Excellent write-up,your blog is certainly one of the most inspiring and informative blogs i've visited. Thank you for sharing!

Symptoms of Ulcers in Women

This is a problem with this model buses and trolleybuses.

cashadvanceonlinenocreditcheck

This is very interesting)

العاب

Good posting, im subscribing to your rss. Many thanks once more

http://www.el7l.com/

The comments to this entry are closed.

. .




Batteries/Hybrid Vehicles