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Fired Up: Bioheat Gains Momentum as Recovery Takes Hold

By Graham Jesmer, Staff Writer
May 4, 2010   |   12 Comments

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12 Reader Comments
Comment
1 of 12
May 5, 2010
When dry, raw wood pellets are burned to ash, the user wastes about half of the heat value of the pellets. That value is in the gases which escape into the atmosphere, adding to the green house gas effect contributing to global warming. Burning wood to ash is not "Green" it is brown or black technology.

It is height of foolishness for any paper, magazine, journalist or trade group to advocate burning wood pellets to ash when they can be made into charcoal or "Torrified" and the gases used for heating or further processed into biofuel. Then the charcoal pellets can be burned, giving good heat and far less damage to the atmosphere.

Further, the charcoal can be infused with tea made from compost, then worked into the soil to become "Terra Preta" -- and thus greatly increase the soil value for use by plants and prevent erosion from rain and wind.

Jim Miller
Comment
2 of 12
May 5, 2010
This is a very misleading article. Policymakers are mandating the use of wind and, to a much lesser extent, solar and geothermal for electricity generation, but not biomass. The largest and most economic market for biomass is also electricity, preferably both electricity and heat (cogeneration), but not heat alone. Small biomass heating systems can't compete with natural gas, when all costs are included, and the gas utilities are allowed to practice predatory pricing against biomass for larger consumers.
Comment
3 of 12
CEA
May 5, 2010
Biomass and biofuel production has sparked many debates and continues to do so. There is no question about the implications that biofuel could do to ease us off of fossil fuels. However, as long as these biofuels and biomass projects remain at a low efficiency, they will do little compared to oil and gas. That being said, there are many new exciting technologies that could change all that. Algae carbon capture techniques, second and third generation biofuels: these are slowly starting to come online and could change the game.
Want to learn more about balanced energy for America? Visit www.consumerenergyalliance.org to get involved, discover CEA's mission and sign up for our informative newsletter.
Comment
4 of 12
May 5, 2010
JimMiller seems to have missed the point that burning BioMass is totally Carbon-Neutral. Plants take up carbon dioxide as they grow, binding it into carbohydrates. Those carbohydrates are oxidized back to CO2 during combustion... closed cycle... totally carbon-neutral! The wood ash could be used as a natural fertilizer on field or woodlots. There are negligible trace metals in most wood ash, especially compared to coal ash.

I do agree that creating combustible gases via pyrolysis would probably convert more of the BTU's into usable heat. And as the article points out, combined HEAT & POWER is the most efficient way to go.

There's no need to "infuse [biochar] with tea made from compost". The Mayan's did just fine churning the bio-char directly into the soil.

With proper control of poly-cyclic emissions, buring sustainably grown biomass is one, clean, renewable energy source that America can exploit with negligible ecovironmental down-side.

[I am in no way affiliate with the biomass industry or related hardware manufacturers.]
Comment
5 of 12
May 5, 2010
We need to understand as we advance into AltFuels that there will be no One Answer for the whole country. Oil was that answer for the longest time but we are now slowly turning that thinking around.
That being said, each region of the country will find its own niche in the growing renewable markets. Wind and solar for the West and Plains states, geothermal in the South and whereever you can find it, and in the Northeast biomass makes perfect sense.
It won't be exclusive, of course. People will learn to integrate wind and solar and whatever the Next Big Thing turns out to be. But remember we are baby-stepping into unchartered waters here, people. We learn as we go.
And Jim, Mike - ease up on the negativity. I've yet to see a post from either of you that wasn't pissing on some new concept or honest direction someone was taking to get us off oil.
Comment
6 of 12
May 5, 2010
As someone from the biomass industry, I think we've been remiss in getting our green message out loudly enough. I'm not sure where Jim gets his figures, but a modern pellet burner is operating at combustion efficiencies of around 95% and overall efficiencies of about 80%, with most of the loss being in unexchanged heat. They have very low emissions, with most of those being large particles. Very little PCOM. What he says was true of a natural woodstove twenty-plus years ago, but even the modern woodstove, under the watchful eye of EPA, is a pretty green machine. In terms of greenhouse gas emissions, both pellet and wood stoves will release roughly two units of carbon for every three that the tree seqestered into the ground while growing, making them CARBON NEGATIVE. Let that same wood rot on the forest floor, and you get the same amount of carbon PLUS a lot of more powerful green house gasses that don't survive combustion, such as methane.

Much of Europe is banking heavily on pellets for their energy future, and they have taken pellet technology far above what we have in the USA, the place of the technology's invention. In major European cities, tanker trucks full of pellets pull up to apartment buildings and vacuum-deliver fuel to special rooms in the basement. That is automatically augered into a central boiler that provides all of the heat and hot water for the residents of the building. Very little fuss and maintenance required.

Douglas is right--we can't afford to dismiss any viable clean energy sources and biomass in many forms is already a major energy contributor, contributing more total energy in the US than nuclear energy does. Today in the US, coal plants are mixing clean, dry pellets to bring their emissions down. Remember, biomass is the stored energy of the most perfect solar collectors ever designed-Green Leaves.
Comment
7 of 12
May 5, 2010
GMC has the good numbers, but to go even further C negative go with a Biochar system. Every 1 ton of Biomass yields 1/3 ton Charcoal for soil Sequestration (= to 1 Ton CO2e) + Bio-Gas & Bio-oil fuels = to 1MWh exported electricity, so is a totally virtuous, carbon negative energy cycle.

Biotic Carbon, the carbon transformed by life, should never be combusted, oxidized and destroyed. It deserves more respect, reverence even, and understanding to use it back to the soil where 2/3 of excess atmospheric carbon originally came from.

We all know we are carbon-centered life, we seldom think about the complex web of recycled bio-carbon which is the true center of life. A cradle to cradle, mutually co-evolved biosphere reaching into every crack and crevice on Earth.

It's hard for most to revere microbes and fungus, but from our toes to our gums (onward), their balanced ecology is our health. The greater earth and soils are just as dependent, at much longer time scales. Our farming for over 10,000 years has been responsible for 2/3rds of our excess greenhouse gases. This soil carbon, converted to carbon dioxide, Methane & Nitrous oxide began a slow stable warming that now accelerates with burning of fossil fuel. Agriculture allowed our cultural accent and Agriculture will now prevent our descent.

Wise Land management; Organic farming and afforestation can build back our soil carbon,

Biochar allows the soil food web to build much more recalcitrant organic carbon, ( living biomass & Glomalins) in addition to the carbon in the biochar.

Biochar viewed as soil Infrastructure; The old saw;
"Feed the Soil Not the Plants" becomes;
"Feed, Cloth and House the Soil, utilities included !".
Free Carbon Condominiums with carboxyl group fats in the pantry and hydroxyl alcohol in the mini bar.
Build it and the Wee-Beasties will come.
Microbes like to sit down when they eat.
By setting this table we expand husbandry to whole new orders & Kingdoms of life.
Comment
8 of 12
May 5, 2010
We need the common ground of soil carbon content to base all analysis of sustainable systems. To account and reward those who sequester C for taking on the externalized costs for us all.

It's hard to fudge soil carbon content, bellow are two efforts to get the US and the world based on a Soil C Standard.

A major focus of my work is coming to fruition, a soil C Standard.
The next step in this process will be nominations for elections to seat a Soil C Board, a supreme court, if you will, under USDA / EPA oversight, to validate / certify practice & protocols for systems that build soil C.

A dream I've had for years ( see Paraphrased speech below ) to base the coming carbon economy firmly on the foundation of top soils. My read of the agronomic history of civilization shows that the Kayopo Amazon Indians and the Egyptians were the only ones to maintain fertility for the long haul, millennium scales. Egypt has now forsaken their geologic advantage by building the Aswan dam, and are stuck, with the rest of us, in the soil C mining, NPK rat race to the bottom.

The Ag Soil Carbon standard is in the second phase of review by the AMS / ARC branch at USDA.
After initial review, approval is expected in this month. Contact Gary Delong . www.novecta.com 515-334-7305 office
Read over the work so far;
http://www.novecta.com/documents/Carbon-Standard.pdf

Please share this global soil C accounting framework.
The integration of REDD+ and CDMs with efforts on national standards will get the world on the same soil carbon page.

Roadmap for Terrestrial Carbon Science
Research Needs for Carbon Management in Agriculture, Forestry and Other Land Uses
April 2010

The Terrestrial Carbon Group
www.terrestrialcarbon.org

http://www.terrestrialcarbon.org/site/DefaultSite/filesystem/documents/TCG_Roadmap%20for%20Terrestrial%20Carbon%20Science_100408.pdf
Comment
9 of 12
May 6, 2010
@ Douglas Prince and gmccarren. The only thing worse than the US government allowing fossil fuel monopolies to block biomass is if people like you allow them to gain political advantage with policies that only pretend to encourage biomass. The biomass industry needs to encourage using the market to decide how biomass is used.

Politicians, mandating windpower, and electric utility monopolies are blocking independents from selling electricity generated using biomass cogeneration. Biomass power has fallen in the US since 1990 (Note: my numbers from the EIA don't indicate biomass contributes more total energy in the US than nuclear energy does). The European Union considers cogeneration the best use of biomass.

Like I said, small biomass heating systems can't compete with natural gas, when all costs are included, mostly because handling is too inconvenient to small furnaces. Biomass may be more economic than electric heating but most households are moving toward gas.

Industrial plants heat with gas and perhaps biomass could gain some market share here, but tax credits is the wrong approach since that would just provide utilities with the fodder they need to make biomass look uneconomic. A better idea would be to forbid gas utilities from lowering gas costs to large users by shifting costs onto smaller consumers.
Comment
10 of 12
May 6, 2010
Mike - I think you're a little misguided as far as what wood pellets and biomass can, and will, do for this country. And I'll admit the article above made them sound one and the same. But they're not.
First, let's take separate the two. Biomass provides both heat and electrical generation, either on its own or as cogeneration. Its use on the industrial scale has not fallen since 1990 since there was NEVER a national policy to incorporate it. Only recently have such policies been considered and biomass is now beginning to show some real strength. For proof, please consider the following two articles --
http://www.renewableenergyworld.com/rea/news/article/2010/05/vermont-college-installs-4000-ton-biomass-plant?cmpid=BioNL-Tuesday-May4-2010
&
http://www.renewableenergyworld.com/rea/news/article/2010/01/worlds-largest-pellet-factory-planned-in-us?cmpid=WNL-Thursday-January21-2010 .
How'd you like that second one? Pretty nifty, huh? Exporting our homemade goods like a real country!
Second, wood pellets are used only for heat. They cannot themselves compete against natural gas, and they also cannot compete against coal. But they ARE cost effective against fuel oil, electricity, and propane. For these comparisons, please visit the Pellet Fuels Institute at http://www.pelletheat.org/2/index/index.html. Good info there.
I also believe you will find that "all costs included", modern wood pellet stoves can easily compete with natural gas or fuel oil burners, in terms of BTU's generated as well as burn efficiency. I'd include coal burning stoves but I don't think anybody has those anymore.
There are no monopolistic fossil fuel "boogeymen" trying to stamp out the pellet market. Hell, I'd be surprised if many of them even knew it existed. And electric utilities are only concerned with making electricity. They don't give a damn what their fuel source is, only that it works.
So take off the tinfoil hat and mellow out. There may be monsters out there, but they ain't here.
Comment
11 of 12
May 6, 2010
The US needs competition in all electricity and natural gas markets. The biomass electricity market has grown, but only in a few states and only among generators who have been favored by electric utility monopolies. The biomass heat markets have actually shrunk. It is pointless to bother calculating if a 30% tax credit would be enough to make larger biomass burners competitive with natural gas. Natural gas utility monopolies will just respond with low gas prices for large industrial consumers to discourage biomass conversion, and shift the costs onto smaller commercial and residential consumers who are unlikely to find burning pellets competitive or convenient.

US Energy Consumption (quadrillion btu)

1989 2006 %Change

Windpower 0.022 0.264 +1100
Biofuels 0.126 0.795 +530

Biomass 2.680 2.172 -19
Electric Utilities 0.010 0.027 +170
Independent 0.089 0.154 +73
Industrial 1.584 1.515 -4
Commercial 0.076 0.065 -14
Residential 0.920 0.410 -55
Comment
12 of 12
May 6, 2010
@ Douglas Prince. You added nothing that I don't already know and demonstrate a total lack of awareness of the market barriers created by natural gas and electricity utility monopolies, so you can cut the patronizing bull (eg tinfoil hat). I don't know if I can describe any clearer what the natural gas utility monopolies are doing, so I am not going to bother to try just for you. I never said they were trying to stamp out the pellet market, Hell, I don't even believe in the economics of pelletizing nor the small burners that use them. Biomass is most competitive when left unprocessed at industrial plants and electric generating plants. When electric utilities build biomass power plants they are usually larger, don't utilize cogeneration, require high fuel transport costs and pressure fuel suppliers to sell their biomass at rock bottom costs. I want to build my own cogeneration plants and since US utility bids are rigged to favor their friends, I am going to Europe where they offer fair feed-in tariffs to all generators.
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Graham Jesmer

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About: I am currently a second year Law Student at Vermont Law School where I work as a Research Associate at the Institute for Energy and the Environment writing and ... more »

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