19 Feb 2016
The 8th annual Northeast Biomass Heating Expo will be held March 30 – April 1 at the Sheraton Hotel and Conference Center in Burlington, Vermont. The Expo has become one of the fastest growing biomass thermal energy conferences in the United States, with almost 2,000 attendees expected this year. There will also be over 400 businesses, agencies and organizations present to contribute to the event’s comprehensive knowledge base of biomass thermal heating.
Biomass heating is a widely available source of renewable energy, which can help meet the heating needs of homes and businesses while displacing fossil fuels. The types of biomass most commonly used for energy include waste wood form the timber and wood products industries, as well as agriculture residues. These fuels can either be directly combusted, or they can undergo a variety of refining processes such as chipping or pelletization for use in a variety of home and industry heating applications.
Speakers, panel discussions, presentations, educational sessions and additional opportunities for tours and workshops will be available at this year’s expo. It is an excellent opportunity for networking with organizations, government, and across the broader biomass industry.
The Northeast Biomass Heating Expo is currently seeking co-hosts to help promote and be promoted at the event. Non-profit organizations, trade associations, community groups, and government agencies are all invited to become an event co-host. Co-host organization’s name and logo will be prominently displayed on conference communication outlets, and receive a free display tabletop at the event to share information with attendees. They will also be recognized during the opening and closing events and receive a special extension of the ‘Early Bird’ rate by one month.
Learn more about the Northeast Biomass Heating Expo at www.nebiomassheat.com.
Following the Fall Semester UVM bioenergy course Bioenergy: Biomass to Biofuels, the University of Vermont will be offering a new bioenergy course this spring entitled Waste to Energy: Community Development Application. The course will again be taught by Anju Dahiya, cofounder of General Systems Research, LLC (GSR), lead biofuels instructor at the University of Vermont’s Rubenstein School of Environment and Natural Resources, and a Vermont Bioenergy Initiative algae for biofuel grant recipient. This course is open to both degree and non-degree students from any background or department, as well as farmers, entrepreneurs, and teachers interested in developing curriculum, or projects at school or college levels. This course is also approved for graduate credit.
In a Vermont post Act 148, the universal recycling law for solid waste, food waste, dairy farm manure, municipal wastes, landfill waste, carbon exhaust, nutrient runoff and other materials not being converted into value products are all resources that hold potential energy that can be developed in a sustainable way to power a local economy. This class focusing on waste sourced bioenergy comes on the heels of a promising results and continued work by Dahiya’s company GSR on incorporating algae into Green Mountain Power’s anaerobic digester at Nordic Farms in Shelburne, Vermont. The product serves as a strong example in which excess nitrogen and phosphorus in cow manure would find its way off farmland and end affecting health of natural water bodies, but instead is harnessed to make electricity and biofuel. As listed in the course catalog “the mission of this program is to provide hands-on instruction in all possible Bioenergy areas, support generation of related skilled workforce and stimulate sustainable energy production.”
Lectures will be held every on campus every Friday during the UVM spring semester from 12:00 pm to 3:00 pm, with 5 additionally required off campus field trips. The course required textbook, Bioenergy: Biomass to Biofuels, was edited by Anju Dahiya less than a year ago and represents a compilation of work from an extensive list of well-respected university extension programs, such as The University of Vermont Research Extension, as well as numerous national organizations including the US Department of Energy’s National Renewable Energy Laboratories.
Learn more about this course at the University of Vermont Renewable BioEnergy page or email the lead instructor Anju Dahiya at email@example.com.
02 Nov 2015
By: Ellen Kahler
Vermont can produce more of its own biofuel energy and the environmental and potential economic benefits of local bioenergy have been proven by the Vermont Bioenergy Initiative – a program of the Vermont Sustainable Jobs Fund. Since 2005, the Vermont Bioenergy Initiative has invested more than $2.5 million in innovative bioenergy research, projects, and people so Vermont can locally produce more of the state’s energy needs – from a variety of agricultural and algal feedstocks.
US Senator Patrick Leahy made the investment at this scale possible through Congressionally Directed Awards from the US Department of Energy (US DOE). The funding concludes in early 2016, at which point a complete impact report will be released by the Vermont Sustainable Jobs Fund, who has served as the intermediary between the US DOE and 52 individual Vermont bioenergy projects over the past ten years.
Research, development, and early stage demonstration projects have included:
- Investing in 2 on-farm methane digesters;
- Building farm-scale infrastructure to turn oilseed crops such as sunflowers into biodiesel to run farm tractors;
- Growing switchgrass and densifying it into “pucks” that are burned in a high efficiency commercial boiler instead of propane;
- Identifying the most lipid producing strains of native Vermont algae which can feed off the excess nutrients from methane digesters and can eventually be harvested to make biodiesel or jet fuel;
- Developing two “Biomass to Biofuels” college level courses which run repeatedly at UVM and VT Tech to inspire and train the next generation of bioenergy experts and technicians;
- Exploring the logistics of bulk wood pellet delivery systems to Vermonters’ homes;
- Organizing a number of learning opportunities and conferences for oilseed, grass and algae researchers, farmers and entrepreneurs to attend;
- Providing agronomic and engineering support to oilseed and grass farmers;
- Educating the general public about why the local production for local use of energy crops from Vermont farms and forests makes good economic and ecological sense.
The Vermont Bioenergy Initiative is a unique effort and one that is gaining resonance in other parts of rural America. The initiative’s resource website, www.VermontBioenergy.com is utilized by biofuel producers, educators, and technical service providers from across the country.
The work conducted over the past ten years by the Vermont Bioenergy Initiative to conduct research, provide technical assistance, and develop infrastructure in emerging areas of bioenergy will continue with the initiative’s partners at UVM Extension and the Vermont Agency of Agriculture, Food & Markets. As Vermont moves forward – being innovative and increasingly focused on generating renewable energy from the land and forests – the research and infrastructure the Vermont Bioenergy Initiative has invested in over the past ten years will endure and spawn the next wave of bioenergy development in the state.
Ellen Kahler is executive director of the Vermont Sustainable Jobs Fund (VSJF), a non-profit organization created by the State of Vermont to help develop Vermont’s sustainable agriculture, renewable energy, and forest product businesses. Since 2005, the Vermont Bioenergy Initiative has been a VSJF program that connects diversified agriculture and local renewable energy production for on-farm and community use by supporting research, technical assistance, and infrastructure development in emerging areas of bioenergy including biodiesel production and distribution for heating and transportation, oil crops for on-farm biodiesel and feed, grass for heating, and algae production for biofuels and wastewater management. Learn more at www.VermontBioenergy.com.
David Marchant and Jane Sorensen of River Berry Farm—an organic vegetable and fruit producer in Fairfax—were early adopters of biomass heating when they installed a corn and pellet furnace in one of their greenhouses in 2008. The furnace required manual lighting and was snuffed out often when strong winds blew, and did not produce reasonable heat. “I kept thinking, there has got to be a better option,” recalls David, “It was a real labor burden, and you couldn’t count on it.”
Based on their early experiences and bolstered by a commitment to long-term sustainability and reduced fossil fuel dependence, River Berry Farm opted to host a biomass heating demonstration project. This time, they opted for a higher-rated boiler rather than a furnace. Boilers produce hot water, rather than hot air, which allows more options for distributing the heat. The new system also had an automated propane ignition system.
The biomass heating demonstration was part of a UVM Extension project aimed at trialing several furnaces in agricultural heating applications with funding support provided by the High Meadows Fund. According to Chris Callahan, Ag Engineer with UVM Extension Agricultural Engineering Program who assisted with some of the design and performance assessment, “The main lessons learned from these early installations were to buy high quality fuel, seek improved automatic ignition controls, invest in a good chimney and install it well, and know the actual heat output rating of the unit.”
Modern biomass heating appliances generally include a fuel storage bin, an auger for feeding fuel to the appliance, the appliance itself (boiler or furnace) with an ignition system, a combustion chamber, a heat exchanger, and a heat distribution system. They also incorporate some means of controlling combustion, fuel feed rate, and air flow and often include emissions control measures and automated ash removal.
The selected boiler was a Central Boiler Maxim 250 with a 250,000 BTU/hr input rating, efficiency of 87.8%, and EPA Phase II Hydronic Heater qualification. “The boiler makes hot water which we can use in multiple greenhouses by plumbing it to them in insulated PEX piping. Once in the greenhouse, we convert to hot air with a hot water fan coil, put it in the ground for root-zone heating or on the benches in our mat-heating system for starts,” says Marchant. “I like it. I keep trying to find something wrong with it, but I can’t. The payback period is a bit longer due to higher initial costs, but you have to expect that.”
The basic system cost was approximately $13,000 for the boiler, bin, pad, and plumbing to a hot water fan coil. The other heat distribution systems included in-ground PEX, heat exchange, and plumbing for a bench heat system and added approximately another $5,000. The system is more automated and reliable than the earlier furnace was, but the higher initial costs and the fact that the system is only used 3 months out of the year do prolong the payback period to about 12 years when compared with a propane furnace. If the system was used for 6 (space heating) or even 12 months (wash water, pasteurization) of the year the payback would be halved or quartered, respectively.
“In addition to the financial payback, the carbon emissions avoidance is also of interest to many people,” says Callahan, “In River Berry Farm’s case, the Maxim is helping them avoid 5,910 pounds of net CO2 emissions per year which is about equivalent to 5,000 miles car travel or the CO2 sequestered by half an acre of pine forest.”
Learn more about UVM Extension’s Agricultural Engineering Program at.
This story was originally released in a series of energy case studies showcasing farms, businesses, vendors, installers, and technical assistance providers who have made a difference with energy efficiency savings and renewable energy production—all of which are components for helping Vermont reach the renewable energy and environmental impact goals of the Farm to Plate Strategic Plan. Learn more at www.vtfarmtoplate.com.
Through a generous opportunity, Vermonters now have a short-time frame before the new year to capitalize on a fantastic incentive offering that helps them save money, while supporting Vermont jobs and sustainable forests, while making sure they stay warm this winter.
Vermonters can get up to $5,500 to help switch from fossil fuel to local wood heating. Cash incentives are available from the Clean Energy Development Fund and Efficiency Vermont. Renewable Energy Vermont and the Renewable Energy Resource Center have partnered to help promote the incentives.
“We’ve been very happy with our decision to switch to a wood pellet boiler. Not only do we save money every year on our fuel bill, but we also love the fact that we’re helping to keep forests intact and logging jobs going,” says Mark Bushnell of Middlesex.
Vermonters who make the switch to wood pellet fuel typically save $1,500 annually when compared to oil and propane fuel heating options. And for those who are used to whole-home heating through their traditional boiler, the wood pellet boiler keeps it simple and complete. Advanced wood pellet boilers are fully automatic, so there’s no work for the home or business owner.
“I heated my home for years with a standard wood stove, but I’m happier with my wood pellet boiler. The new boiler is much more efficient and better for the environment because it is cleaner burning. And it feels great to be off fossil fuels,” says Susan Clark of Middlesex.
Wood pellet boilers, though not well known in the United States, are the primary way of heating in some parts of the world, including Upper Austria where more than 40,000 homes and businesses heat with wood from their background in an easy, seamless way. In fact, the State of Vermont and Upper Austria are involved in a Sister Statehood Agreement to help learning across both sides of the Atlantic to increase the uptake of this sustainable, local heating option.
“For many years, Vermont has been a national leader in the use of modern wood heating systems in large buildings like schools, office buildings, and apartment buildings. With pellets now available in bulk using specialized delivery trucks that conveniently blow pellets into a fuel bin and heating systems that are fully-automated, many homeowners and small businesses are also making the switch from oil and propane,” said Adam Sherman of the Biomass Energy Resource Center.
For more information, please go to www.advancedwoodheat.com
17 Aug 2015
The Third Annual National Bioenergy Day (NBD), which will take place Wednesday, October 21st, is a day that is marked with events from across the country that celebrates energy independence, local jobs, and many other benefits of local bioenergy. Led by Biomass Power Association in partnership with U.S. Forest Service, National Bioenergy Day is an opportunity for Vermonters to showcase our research, progress, and impacts in producing local bioenergy for local use.
How To Get Involved:
- Organize an event on or near October 21ndthat showcases bioenergy as a clean, efficient, and resourceful way to produce energy. Emphasizes bioenergy’s role in improving environmental health; and facilitates collaboration along the supply chain.
- Partner with someone who works in the bioenergy supply chain to create an event. Use the Vermont Energy Atlas to find partners in your area.
- Piggyback on an existing event and call it a NBD event.
- Share and talk about NBD in your social media and press efforts while promoting impacts in your community.
The Vermont Bioenergy Initiative, for example, will spend the day re-capping and previewing events and research on our Twitter handle @VTBioenergy that took place throughout the summer and that are planned for the fall. We’ll be recapping and sharing exciting things like the exciting learning opportunities at the University of Vermont, Full Sun Company’s Biodiesel and Meal production, and much more!
For more information, you can visit also visit bioenergyday.com and follow @USAbiomass on twitter!
10 Aug 2015
The team at Vermont Bioenergy Initiative has worked to put together a comprehensive list of bioenergy events for you! This list will be updated as more events arise. If you know a bioenergy events that you think should be on the list, tweet it to us! @VTbioenergy
- Modern Wood Pellet Heating Forum, Tuesday, Sep. 15, 2015, 6 – 8:30pm, Montshire Museum in Norwich, Vermont
- Ag Innovation Showcase September 14-16, 2015 St. Louis, MO
- 2nd International Conference on Past and Present Research Systems of Green Chemistry. September 14-16, 2015. Orlando, Florida
- Switchgrass III. September 30 to October 2, 2015. Knoxville, TN
- Algae Biomass Summit September 30-October 2, 2015 Washington, DC
- Renewable Energy 2015 Conference & Expo. October 8-9 2015. Burlington, VT
- National Advanced Biofuels Conference & Expo. October 26 – 28, 2015. Omaha, Nebraska
- 2015 TAPPI PEERS Conference – Sustainable Solutions for Our Future. October 25-28, 2015 in Atlanta, Georgia.
- International Bioenergy and Bioproducts Conference 2015 – 10/28 – 10/30 Atlanta, United States
- 3rdAnnual National Bioenergy Day
13 Jul 2015
Making biofuel, it sounds like a complicated process taking place in a laboratory somewhere, but in reality it’s quite simple and happening in small, rural Vermont farms. Vermont farmers like John Williamson of State Line Farm and others are electing to create their own fuel and meal. These farmers are enjoying the benefits of the distance to source resiliency and cost reliability that comes with the local production for local use biofuel model they have adopted.
As John Williamson, a Vermont Bioenergy grant recipient says, “100 years ago everyone produced their own fuel; we are just doing that now in a different way.” This is a novel way to look at what he is doing on his North Bennington farm. Vermont farmers in the past would plan to allocate their acreage to feed their livestock, some of which aided in energy-intensive farm activities like plowing, planting, and the eventual harvesting of their field. With the local production for local use model, John is now thinking about how to feed his tractor so he can do the same activities. So what is the feed of choice for John’s John Deer tractor? Sunflowers!
John loads dry and clean sunflower seeds into hoppers on a TabyPressen Oilpress, where screw augers push the seed through a narrow dye. Extracted oil oozes from the side of the barrel and is collected in settling tanks while pelletized meal is pushed through the dye at the front and is stored in one-ton agricultural sacks. The first of the two byproducts, the seed meal, can fuel pellet stoves, serve as fertilizer for crops, or find its way to local Vermont farms to supplement animal nutrition as livestock feed. The second byproduct, the fuel, could at this point be used as culinary oil for cooking, but instead will experience further refinement and become biofuel.
The processing of the oil takes place in Johns self-designed Biobarn. In the below video, John Williamson and Chris Callahan of University of Vermont Extension show us how they can grow oil crops, make biodiesel, feed animals, and save money!
08 Jun 2015
In 2008, the Vermont Bioenergy Initiative began to explore the potential for grasses energy grown in Vermont to meet a portion of the state’s heating demand and reduce the consumption of non-renewable fossil fuels. The Grass Energy in Vermont and the Northeast report was initiated by the Vermont Sustainable Jobs Fund, and carried out by its program the Vermont Bioenergy Initiative, to aid in strategic planning for future grass energy program directives.
Grass Energy in Vermont and the Northeast summarizes current research on the agronomy and usage potential of grass as a biofuel, and points to next steps for the region to fully commercialize this opportunity. The keys to commercializing grass for energy are improving fuel supply with high-yielding crops, establishing best practices for production and use, developing appropriate, high-efficiency combustion technology, and building markets for grass fuel.
Perennial grasses, while serving as a biomass feedstock for heating fuel, also have numerous other benefits to farmers. The grass energy benefits reviewed in the report include retaining energy dollars in the local community, reducing greenhouse gas emissions from heating systems, improving energy security, providing a use for marginal farmland, and reducing pollution in soil and run-off from farms.
Regional and closed loop processing were two models recommended by the report, both involving farmers growing and harvesting grass, but differing in where the grass is processed into fuel and where it is used. The regional processing model calls for aggregating grass from a 50-mile radius at a central processing facility, where the grass is made into and used as fuel, or sold to local users. The closed loop model suggests farmers growing and processing grass on-site for on-farm or community use. Other models, like mobile on-farm processing and processing fuel for the consumer pellet market have significant hurdles to overcome if they are to be successful in Vermont.
In the below video a Vermont agronomist explains switchgrass production followed by entrepreneurs turning bales of grass into briquette fuel. This grass biofuel feedstock can be grown alongside food production on marginal agricultural lands and abandoned pastures, and in conserved open spaces. The harvested grass can be baled and used as-is in straw bale combustion systems, or it can be compressed into several useable forms for pellet fuel combustion systems.
For more information on grass biofuel feedstocks and to read the full Grass Energy in Vermont and the Northeast report visit the grass energy section of the Vermont Bioenergy website.
01 Jun 2015
Nationally, corn-based ethanol and palm oil based biodiesel are gaining negative attention for their impacts on the environment and food security. But here in Vermont, farms are producing on-farm biodiesel to power equipment and operations on the farm and the local farm community. This is a profoundly different model from national and international biofuel production. Agricultural Engineering and Agronomy Researchers at University of Vermont Extension in partnership with farmers and the Vermont Bioenergy Initiative have developed a model of local minded, on-farm production of biofuels that can help rural communities transition away from unsustainable models of food, feed and fuel production.
National and global models of corn-ethanol and soy oil-biodiesel production are resulting in large-scale land conversions in some parts of the world, in particular to a loss of native grass and forestland. This type of biofuel production is not happening in Vermont, where bioenergy production incorporates rotational oilseed crops like sunflowers and soybeans on Vermont farms.
Locally produced biodiesel supports resiliency in Vermont, a cold climate state which is particularly dependent on oil. Over $1 billion leaves the state for heating and transportation fuel costs. Heating and fuel independence by producing on-farm biodiesel provides farmers fuel security which is comparable to that which is sought by Vermont’s local food movement.
The local production for local use model results in two products from one crop: oil and meal (animal feed or fertilizer). By growing oilseed and pressing the seed to extract the oil, farms are creating a valuable livestock feed at home, rather than importing it. The oil can be sold as a food product, used directly in a converted engine or converted to biodiesel for use in a standard diesel engine. In this way, oilseed crops offer flexibility in the end-use of the products. US corn-based ethanol mandates are raising grain costs nationally, making feed expensive for Vermont farmers. Local bioenergy production means farmers produce their own feed, fuel, and fertilizer for on-farm use, at a fraction of the cost and more stable prices. Reduced and stable prices for feed, fuel, and fertilizer can mean improved economic viability for Vermont farms and more stable food prices for Vermont consumers in the future.
Overall viability can be seen in the local production for local use model by considering economics, energy and carbon emissions. Biodiesel production costs of between $0.60 and $2.52 per gallon have been estimated for farm-scale production models, which are generally below market price for diesel fuel. The net energy return in Vermont on-farm biodiesel operations has been estimated at between 2.6 and 5.9 times the invested energy (i.e. more energy out than was required to produce the fuel), demonstrating strong returns and potential for improvement with increased scale. Furthermore, oilseed-based production of biodiesel has been estimated to result in a net reduction of carbon dioxide emissions of up to 1420 lbs. per acre, the equivalent of about 1500 miles of car travel per year.
Categorizing the Vermont biofuel model with national models and trends is inaccurate, considering the innovative and efficient systems benefiting Vermont farmers. While national and international analysis weighs the benefits of food versus fuel, the model is quite unique in Vermont and the food versus fuel challenge is well met. The model developed in Vermont does however have wider-reaching implications in that this can be replicated in rural farm communities across the US.
As John Williamson of Stateline Farm, a Vermont Bioenergy grant recipient says, “100 years ago everyone produced their own fuel; we are just doing that now in a different way.”