Alliance for Green Heat Welcomes Emma Hanson to Board of Directors

 FOR IMMEDIATE RELEASE

Contact: John Ackerly, President
Alliance for Green Heat
info@forgreenheat.org 

March 2, 2026 - The Alliance for Green Heat (AGH), a national nonprofit dedicated to promoting cleaner, more efficient wood and pellet heating, is pleased to announce the appointment of Emma Hanson to its Board of Directors.

Hanson brings more than a decade of experience advancing energy efficiency, advanced wood heating technologies, and sustainable forestry policy at the state, regional, and national levels. 

Most recently, Hanson served as Senior Program Manager for Residential HVAC at the Consortium for Energy Efficiency, where she led a committee of utility efficiency program administrators from across the United States and Canada. In that role, she managed initiatives to accelerate the adoption of high-performing heating and cooling systems, helped guide updates to electric HVAC specifications in response to new federal standards, and supported strategic electrification and demand response efforts in the wake of the Inflation Reduction Act.

Previously, Hanson was Wood Energy Coordinator at the Vermont Department of Forests, Parks & Recreation. There, she promoted advanced wood heat solutions to residents and businesses, secured federal funding for incentive and technical assistance programs, and helped develop Vermont’s Biomass Renewable Energy Standard rule. Her work strengthened markets for low-grade wood, supported sustainable forest management, and contributed to Vermont’s climate and renewable energy goals.

“Emma brings a rare combination of technical knowledge, policy experience, and on-the-ground program management,” said John Ackerly, President of the Alliance for Green Heat. “Her leadership in both advanced wood heat and high-efficiency HVAC markets will help guide our efforts to ensure that modern wood heating plays a constructive role in a low-carbon future.”

Hanson holds a Master of Science in Agriculture, Food & Environmental Policy and a Bachelor of Arts in Anthropology and French from Tufts University. She lives in Waitsfield, Vermont.

 “Modern wood heat is one of the solutions to the climate challenges we’re facing. It works symbiotically with heat pumps to ensure adequate heat in all conditions and its fuel is an essential part of a forest economy that helps to keep forests as forests, essential to climate resilience going forward. I’m thrilled to join the AGH board and help bring these heating solutions together," Hansen said.

 For more information about the Alliance for Green Heat, visit www.forgreenheat.org.

Vermont and Maine retain top rank in residential wood heat, while New Mexico climbs to #3

Wood heat provides resilience, benefits to utilities as climate change quickens

An analysis of U.S. Census data by the Alliance for Green Heat shows that wood heating is expanding in some states and shrinking in others between 2009 and 2019.  Generally, it is expanding in northern New England and shrinking in the Pacific Northwest. In areas that experience frequent weather inversions causing excessive smoke build up, like Oregon and Washington, fewer homes heating with wood is good news for local air quality. In New England states where it is expanding, it's good news for agencies and groups that want to more aggressively reduce fossil fuel heating, and invest heating dollars in the local economy. 

Overall, the number of homes that use wood or pellets as their primary heat source dropped from 2% to 1.6%, with low fossil heating fuel prices likely being the top factor.  From 2000 until about 2012, wood and pellets were the fastest growing heating fuel in the United States. According to the U.S. Energy Information Agency, 8 states experienced more than 100% growth and 7 states experience between 50 and 100% growth from 2005 to 2012.

Vermont and Maine have long been ranked #1 and #2 for per capita primary wood heating with 9% and 13% of homes as of 2019.  New Mexico rose from #6 in 2009 to #3 in 2019, passing Montana, Idaho and Oregon.  It experienced a 14% rise in primary heating during that decade whereas Montana, Idaho and Oregon dropped 14%, 10% and 17% respectively.  Poor economic conditions in Native American Reservations may account for some of New Mexico’s per capita rise.

Wood and pellet heating is widespread and culturally accepted – it is used in about 10 million homes – and consistently offsets a significant amount of fossil heating fuel every year. Now, the electrification movement is leading to more and more homes heating with heat pumps. In the coming decades, until renewable electricity is more available, wood and pellet heat can help utilities by lowering wintertime peak demand.

Census data on the rise or fall of per capita primary wood and pellet heating only tells parts of the story. Stoves are used far more often as secondary heaters and can be a secondary heater one year and a primary one the next, depending on fossil fuel prices or a household’s ability to pay for fossil fuels. It also doesn’t necessarily reflect the sale of stoves, or how many people buy new stoves to replace old ones, buy stoves for secondary homes, or switch from wood to pellet stoves, for example. According to the Energy Information Administration (EIA), about 3 times more homes use wood as a secondary fuel than a primary one.

It is still unclear how climate change and slowly warming winters will impact wood heat. The federal government and states may increase rebates for the cleanest and most efficient units, since wood and pellet stoves are a very cost-effective way to reduce fossil heating fuels. Additionally, stoves that used to be secondary heaters may now become primary heaters as more and more households need to use their furnace or boiler less.  Other factors that are expected to lead to more stove sales include the increasing severity of major storms and blackouts and the widespread switch to electric heat pumps.  Many households with heat pumps want back-up heat, cheaper heat during the coldest months, and a more intensive heat source.

Northern New England states have already started to incentivize more pellet heating to invest in local energy jobs, reduce reliance on carbon-intensive oil and propane heat and help build the infrastructure for modern pellet heating systems. Those states do not have the level of wood smoke problems that some western U.S. areas have.

The list of the per capita top 10 wood heating states has also seen some reshuffling over the past decade. The popularity of wood relative to other home heating fuels increased in some states and declined in others. 

State	2009 Rank	2019 Rank	Change in Percentage of Homes Heating Mainly with Wood  (2009-2019)
Vermont	1	1	▲+10%
Maine	2	2	▲+7%
New Mexico	6	3	▲+14%
Montana	3	4	▼ -14%
Idaho	4	5	▼ -10%
New Hampshire	8	6	▲ +18%
Oregon	5	7	▼ -17%
West Virginia	7	8	▼ -10%
Alaska	12	9	▲ +9%
Wyoming	9	10	▼ -23%
Washington	10	11	▼ -24%
Arkansas	11	12	▼ -12%

In the past ten years, New Mexico overtook Montana, Idaho, and Oregon to become the state with the 3rd highest percentage of homes heating with wood. Wood’s popularity has declined in West Virginia, Wyoming, and Washington, while increasing in Alaska, Vermont, New Hampshire and Maine. 

The home heating question has been a Census question since 1996, and the question and definitions have not changed since then. As a result, pellets are not specifically mentioned, though the Census definition says: “This category includes purchased wood, wood cut by household members on their property or elsewhere, driftwood, sawmill or construction scraps, or the like.” Therefore, we assume that people answering this question today will say they use wood if they use pellets.

Regarding older Census data, it is difficult to find historical annual state-level data that are 10 years or older. Data from 1999 is available for download online but in aggregate form with unlabeled questions. The 2020 Census data will be released starting in September, though some of the data will not be released until January of next year. The data used to compare household wood heating 2009 and 2019 is from the American Community Survey (ACS), which the Census Bureau conducts every year. One-year ACS wood heating estimates are less accurate because the respondents are fewer than the official decennial “Census,” which only happens once every 10 years. 

Further reading:

Households heating with wood or pellets declined by nearly 10% between 2011 and 2016

EIA: 2014 Increase in wood heating most notable in the Northeast

2012 Census Shows Wood Heating Continues Growth Streak

2011 Census Shows Wood Heat Continues to Rise in U.S.

2010 Census Shows Wood is Fastest Growing Heating Fuel in US

Coal Heating in the United States (June 2017)

  

Pellet stove performance makes big gains as interest in renewable energy grows

In 2009, the average pellet stove emitted 2 grams of smoke (particulate matter) per hour. No one had any idea which stoves were efficient and which weren’t.  Ten years later, the average pellet stove certified to be sold as of May 2020 emits only 1 gram per hour.  By cutting that number in half, the emissions around homes that heat with these new pellet stoves are barely perceptible.  

Efficiency has also risen, with the average efficiency of pellet stoves now nearly 74%, but some as high as 87%, based on the EPA's certified stove database.  Ten years ago, average efficiencies were under 70%. 

A variety of factors led to these performance improvements but it’s not yet clear if they will lead to an uptick in installations.  Based on interviews with numerous pellet stove retailers, most consumers don’t buy pellet stoves based on increased performance values. 

“We see a lot more customers who want a renewable heat source and are not so concerned whether it’s going to save them money or not,” says James Cusano, a veteran stove retailer at the Stove Barn near Concord New Hampshire.  “Consumers are looking for ease of use – which means big hoppers, minimal maintenance and thermostat controls – and many now want to avoid fossil fuels.”

Cusano says heating preferences in New Hampshire are changing and consumers have more options today than they did 10 or 20 years ago.  Heat pumps are an option, but with cold New England winters, stoves are still prized.  For pellet stoves, consumers “want it to be as close as possible to heating with a modern central system, but with a biomass fuel source, and without the much larger investment required for a pellet-based central heating system.”

Other retailers, such as Richard Thomas, who runs Courtland Hardware in Maryland, say renewable energy is not a big driver.  He says many people buying pellet stoves used to have a wood stove and are looking for the ease of use that pellet stoves offer.  Maryland has a stove incentive program driving consumers toward cleaner and more efficient pellet stoves, rather than basic wood stoves.  Massachusetts and New York have similar programs that require turning in an old wood stove.  These states show that harnessing interest in stoves and moving towards pellet heating can be a key strategy for decarbonizing heating fuel loads. 

The renewable energy movement so far is benefiting heat pumps far more than pellet stoves, though both offer the potential for low carbon space heating. Until there is a lot more renewable electricity on state grids, advocates say pellet heat should be an obvious choice, helping to avoid winter electric peak demands that are more likely to be met with combined cycle gas plants than with renewables.

National pellet stove trends

Pellet stoves are well-known in the wood heating community, but many consumers and renewable energy experts still don’t know exactly what they are and how they differ from wood stoves.  No precise figure exists about the number of pellet stoves in use today, but most experts think it is more than 1 million.

Current sales figures are not public but past figures show large swings between years amidst a long term growth pattern.  Pellet stoves have never outsold wood stoves, but they have come close, selling up to 150,000 units some years.  More recently, pellet stoves may be only a quarter or third of wood stove sales (in the 50,000 per year range). Even at 50,000 units a year, however, pellet stoves are being installed at a scale that merits more attention.

There is evidence that pellet stoves are gaining traction, partly from demand of people who used to heat with wood and partly from first time buyers.  In Vermont, one of the few states that includes pellet stoves in surveys on home heating devices, more than 8% of homes use pellet stoves or boilers as their primary heat and an additional 3.6% use pellets as a secondary heat source.    This is a rapid rise from 2008 when less than 2% of homes used pellets as a primary fuel.

Source: Vermont Residential Fuel Assessment, 2014 - 2015

Maryland does not track pellet stove installations but the state released data showing that 85% of people receiving rebates for an efficient stove chose the pellet stove rebate over the wood stove rebate.  Richard Thomas sells pellet and wood stoves at three locations in Maryland in northeast Maryland and he says that 90% of the stoves he sells are pellet and less than 10% are wood stoves.  

The best pellet stoves consistently emit well under 1 gram of PM per hour, 1/5^th or 1/10^th the emissions of a  wood stove in the hands of the average consumer who may rarely get the results achieved in the test lab.  Like many modern combustion engines – from cars to furnaces – modern pellet stove emissions are almost always invisible and undetectable by the nose, but pellet heaters  still emit more per hour than a car and much more than a modern gas or oil furnace. Bigger PM reductions are still underway with pellet combustion technology and one pellet stove model was recently tested at 0.22 grams an hour, a level that some thought was nearly impossible.  

One stumbling block for pellet stoves is the public perception that they accelerate deforestation.  There are large volumes of sawdust and scrap wood from lumber yards that have been used to make heating pellets in the northeast for decades.  Those volumes can rise or shrink depending on the strength of the housing market and the economy overall.  There was little confusion about the source of fiber for pellets until large corporations started harvesting whole trees from the southern US to ship to Europe to make electricity.  It is now commonplace for people to think that’s how heating pellets are made.  Likewise, many don’t distinguish between small scale heating at 75% efficiency and industrial scale electricity production at 25% efficiency.

The large percentage of pellet stoves sold today is great news for air quality agencies since they operate far cleaner in homes than wood stoves. It’s also great news for the renewable energy community since a pellet stove can run 24/7 and is usually a home’s primary heat source. A pellet stove used as a primary heater in most parts of the US will typically make as much energy as a 5kW residential solar panel installation.

Prices

Accurate price data is not available to track changes between 2009 and 2019.  At the high end, top brands like those from Harman, Quadrafire and Travis sell for $3,000 - $4,250 and installation can add $500 - $750 or more.  At the low end, there is still an abundance of very affordable pellet stoves.  At least seven manufacturers make pellet stoves that sell for $1,000 or less (two of them appear to be on the market illegally and are not EPA certified.) 

A top value stove, the PelPro, has several models that sell for about $1,200 and are among the cleanest and most efficient on the market.  Scott Williamson, a professional pellet stove repair technician from Massachusetts, says with their large hoppers and solid reliability history, it’s hard to find a better pellet stove for anywhere near that price point.  PelPro stoves are sold by big box stores, requiring consumers to find and hire a professional installer and repair technicians on their own, compared to specialty hearth dealers who provide those services and rely on the additional income streams.

The number of certified pellet stove models nearly tripled from 56 in 2009 to 171 in 2020.  Most pellet stove models in 2009 were not yet certified, due to a perceived exemption which was only supposed to apply to stoves that had an excess of 35 parts air to 1 part fuel.

Data shows that cleaner stoves are more efficient stoves

In addition to becoming cleaner and more efficient, there is now a clearer relationship between cleanliness and efficiency.  About half of the sixty-two 2020 certified pellet stoves are below 1 gram an hour, and half are between 1 and 2 grams.  The stoves under 1 gram had an average efficiency of 75.9% and those above 1 gram had an average efficiency of 71.7%: a nearly 10% difference.  This provides an additional motivation for consumers to look more closely at the cleanest stoves, as they also tend to be the ones that will use the least fuel for the same heating output.  

Source: EPA Wood Stove Database (room heaters)

James Cusano of the Stove Barn in New Hampshire also found that “the lower particulate emissions seem to require slightly less of the intensive cleaning that the higher emission models do, and that is critical to the long-term efficiency and reliability of any pellet burning appliance.”

In addition, there is a clear correlation between PM and carbon monoxide (CO).  Stoves emitting less than 1 gram of PM had an average of 0.18 pounds of CO per hour.  Stoves with more than 1 gram of PM per minute emitted an average of 0.29, 38% more.  CO is one indication of good combustion and is expected to correlate with PM.

The road to better performing pellet stoves

The year 2015 marked the biggest turning point for pellet stoves because the EPA required all pellet stoves to be certified and report the results of efficiency tests.  Stove retailer James Cusano says he has seen bigger changes in the bottom of the market than at the top.  Going forward, “the middle and top market models will continue to improve their automations, while the bottom will focus on continuing to try to meet the new minimum expectations at budget price points,” Cusano said.

The EPA decided to set the same PM regulatory levels for wood and pellet stoves, giving pellet stoves a very easy target.  The average pellet stove certified to the 2020 standard of 2 grams an hour emits about 1 gram an hour.  The federal IRS tax credit has also used a single efficiency number for both wood and pellet stoves, which would make far more pellet stove models eligible for a tax credit, if it were to be re-enacted.  Bills in the House and Senate supported by AGH, HPBA and scores of other groups propose a tax credit with a 75% efficiency limit as of 2020 would make most pellet, catalytic and hybrid stoves eligible and most non-cat wood stoves ineligible. However, after this tax credit was passed in December 2019, manufacturers began undermining it by certifiying that stoves even in the low 60s qualified for the tax credit.  HPBA declined to comment on how efficiency should be calculated even though efficiencies have always been averaged, just like automobiles average highway and city miles to get a final number.

Innovation and competition have also played an important role in the trend toward cleaner and more efficient pellet stoves.  A half a dozen models now emit less than a half a gram of PM per hour and a dozen are over 80% efficient.  

The US Energy Information Agency releases annual forecasts of heating fuels each fall but do not separate pellet from wood heating.  This year they predict a slight national decline in primary wood heating to a little less than 2% of US households (about 2 million homes), down from 2.2% about 5 years ago.  However, about 8% of American homes use wood or pellets as a secondary heat source, according to the EIA’s recent Winter Fuel Outlook.

Per capita use of wood and pellets as a primary residential heating fuel.  Two states – Vermont and Maine – are in the 10% - 25% category, sharply reducing fossil heating fuel demand in that region.  Source: EIA 2019 Winter Fuel Outlook

Continued improvements in pellet stove performance will help the technology serve a core population of people who currently heat with expensive oil, propane or electric resistance heaters, as well as those looking for renewable options.  And, it may not be long before pellet stoves are designed and tested at or below 0.1 gram an hour, a technological milestone that could coincide with state and national policies aimed at increasing renewable heating goals.

Could a Thermoelectric Wood Stove Pay for Itself?

By Ken Adler, AGH Senior Technical Advisor

Payback calculations are common in the residential solar photovoltaic industry where homeowners want to know how long it will take for them to recoup their initial investment. If you purchase panels outright, payback periods depend on a variety of factors including a utility’s price for electricity, tax incentives, and amount of daily sunlight hours. A range of 5 to 8 years is possible however, it can be as wide as 3 to 15 years.[1]

Answering the payback question for thermoelectric wood stoves is one of the objectives for the 2018 Wood Stove Design Challenge. In the meantime, there are several ways to begin answering this question with information already available. It is also useful to look at how use of a thermoelectric wood stove in combination with another energy-saving system, i.e., solar, could prove beneficial to the homeowner and thus both industries as well. For example, in northern states and Canada, a thermoelectric wood stove could reduce the number of residential panels needed and thereby save the homeowner thousands of dollars in panel costs.

Early Thoughts on Payback

The retail price of a thermoelectric module is around $57.50 for a 22-watt module, or $2.61 per watt.[2] One critical point to make here is that the power output of our 22-watt module assumes an optimal hot-side temperature of 300 C (572 F) and cool-side temperature of 30 C (86 F). This ideal temperature differential is very difficult to achieve in real world conditions, so the real-world cost per watt for thermoelectric modules will be higher. However, cost should decrease and efficiency improve with widespread adoption of thermoelectric modules, similar to what happened in the solar industry. For example, DOE estimated that the installed cost of a solar panel declined from $7.06 per watt in 2009 to $2.93 in 2016, a reduction of 60 percent.[3] If we go back to 1977, the cost of a solar panel was $77 per watt. It is not unreasonable to expect a decline for the cost of thermoelectric modules as economies of scale reduce production costs.

Of course, when a thermoelectric module is placed into a wood stove there are other associated costs. The primary cost by far is the heat exchange system. As I’ve discussed in a previous post, to generate at least 100 watts of power, it’s likely that a water-cooled heat exchange will be needed. The current retail price for a 100-watt water cooled thermoelectric generator, which includes eight thermoelectric modules, is $599, or $5.99 per watt. One question the competition will attempt to answer is how much this heat exchange will cost when it is integrated into the design of the wood stove.

Secondary cost considerations include the price of the wood stove, its installation, and fuel costs. The price for a larger size 50,000 BTU wood stove can range from $900 to over $4000, and the average consumer spends about $2,500. Since a thermoelectric wood stove would be providing both heat and electricity, it is difficult to separate out how much of the cost of the stove is for each function. The more crucial point for now is that many larger size stoves, which can generate up to 50,000 BTUs and meet the 2020 EPA NSPS standard, are available for as little as $1,300. While this does not include the cost of installation, it does suggest that the wood stove portion of the costs should not be a major obstacle.

The cost of installing a thermoelectric wood stove into a home should not necessarily be that much greater than the cost of installing a traditional wood stove. One additional cost will be attaching the power outputs from the thermoelectric wood stove to an inverter. However, if we assume that early adopters will already have or are planning to get a solar PV system (more on this below) the cost of the inverter would not be a major obstacle.

Finally, one can assume that the fuel cost for a thermoelectric wood stove is essentially zero because the wood stove is already being used to heat the home. A thermoelectric module will convert only 3 to 6 percent of the heat from a woodstove into electricity, while the remaining 94 to 97 percent passes through the module and is released as heat into the home. In other words, the module is only using a very small percentage of the heat generated by the stove to produce electricity.

Value in Combining Technologies

While more in-depth analysis is needed, it’s possible that a thermoelectric wood stove could help reduce the size and cost of solar PV systems in northern climates that have limited sunlight/solar radiation in winter. For example, a typical 5000 watt solar PV system in Vermont produces 6,280 kWh of electricity per year, while the same system produces 7,913 kWh in Los Angeles.[4] Most of this difference is due to the low winter time output in Vermont between October and February: For example, the Vermont system produces 239 kWh in December, as compared to the Los Angeles system’s 473 kWh. If the Vermont resident wanted to generate the same amount of power as in Los Angeles, they would need to increase the size of their solar PV system from 5000 watts to approximately 6300 watts. At the current cost of approximately $3.36[5] per watt installed for residential solar, this could cost the Vermont resident an additional $4,368 for additional solar panels.

Alternatively, instead of purchasing extra solar panels, the Vermont resident could invest in a thermoelectric wood stove to boost their winter time power output. As we mentioned in our previous blog, a wood stove with a 150 to 200-watt thermoelectric generator operating 16 - 20 hours per day could generate 93 to 124kWh of electricity per month, which would be a good boost to the Vermont output of 239 kWh in December. And, at 0.16 $/kWh for electricity in Vermont, the thermoelectric wood stove could save the homeowner an additional $15 to $20 per month.

While a real payback calculation for a thermoelectric wood stove will need to wait until prototypes go through more testing and we get results from the 2018 Wood Stove Design Challenge, the available information suggests thermoelectric wood stoves could help reduce the cost of residential solar installations, and potentially save homeowners thousands of dollars.


[1] http://solar-power-now.com/the-typical-solar-panel-payback-period/
[2] See our Resources page for a list of thermoelectric retailers.
[3] NREL. U.S. Solar Photovoltaic System Cost Benchmark. September 2016. In 1977, solar panels cost $77 per watt.
[4] NREL PVWatts Calculator
[5] EnergySage. Solar Marketplace Intel Report. April 2017.

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Renewable Left Out of Heating Fuel Price Reports

For many years, the federal and state governments have issued monthly reports on the prices of fuels including winter heating fuels so that consumers, businesses, and the media have accurate information. Traditionally, this has meant prices of fossil fuels – oil, natural gas, propane, etc. Recently four states started to provide price information on a renewable fuel – wood pellets: Massachusetts, New Hampshire, Vermont, and Maine.

Advocates for renewable energy say it’s been a hard sell to get government bureaucracies to add wood pellets to their price reports. The most important reports come from the Energy Information Agency (EIA), which is part of the Department of Energy (DOE). However, the EIA collects their data from states, and unless states report on pellet prices, they say they can’t include it in federal reports.

State energy offices are stretched thin and some say they can’t take the extra work of including a fuel that may have more price fluctuations and not as many major retailers who can provide the price information. In New York, the New York Biomass Energy Alliance, a trade association is undertaking research and surveys to help the state start reporting on pellet prices. Other states where wood and pellets are a widespread heating fuel include Pennsylvania, the Great Lake states, and the Pacific Northwest.

Fossil fuels have received extensive government subsidies over the decades, but advocates of wood pellets say that these price reports can be seen as an informational subsidy. As federal and state agencies switch gears to include more information about renewable energy, this may result in less staff time spent on fossil fuels.

A example of this is a high profile report the EIA puts out every fall called the “Winter Fuel Outlook.” This annual report had never mentioned a word about firewood and pellets, America’s third most common heating fuel until last year. The report has always had extensive information about heating fuels, such as oil and propane, that provide fewer Btus to US homes than wood and pellets provide. The Alliance for Green Heat, Hearth & Home Technologies, New Hampshire Senator Jeanne Shaheen and others pressed EIA to also include renewable fuels. The report did include some information about wood and pellets and EIA is likely going to increase their coverage in the 2013 report. Visit this page to read more on the EIA’s winter fuel outlook. 

A coalition of non-profit and industry groups is starting to call on state energy offices to urge them to include pellet and wood prices in their monthly reports. Below are details and links to the four states that currently report on pellet prices.

New Hampshire’s Office of Energy and Planning compares both wood pellets and cordwood to other fuel types such as natural gas, propane, and gasoline. The price/unit; heat content/unit (Btu); and price per million Btu are all compared between the different fuel types. The data is supposedly published weekly with the latest update being June 3rd, 2013. The website will also have historical fuel price data as well. The OEP notes that the price of firewood sold by the cord can vary widely depending on the location, time of year and quality of the wood being sold.

Vermont’s Public Service Department compares BTU/unit, efficiency, $/unit, and $/MMBtu between wood pellets, green cordwood, fuel oil, natural gas, propane, etc. The data is compiled into monthly reports from 01/08 to 06/13. Prices are collected on or about the first Monday of each month and reflect dealer discounts for cash or self-service. The cord wood information has not been updated since 11/11.

Maine’s Governor’s Energy Office conducts a weekly survey of fuel prices during the peak season between October and March. Information on the price of cordwood and wood pellets has been archived since October 9, 2012. The survey is released monthly during the rest of the year. It reports the weekly price averages of oil as compared to natural gas, propane, wood pellets, cordwood, and electricity.

Massachusetts’ Executive Office of Energy and Environmental Affairs website provides detailed monthly fuel price averages of heating oil, propane, gasoline and diesel. For pellets, it only provides links to third party websites. These websites, of which woodpelletprice.com is the most comprehensive, compile wood pellet retailers in Massachusetts, their contact information, the brands of pellets they sell, the corresponding price, and the date the price was last updated.