By Miranda Lipton for Reasons to be Cheerful.
Broadcast version by Suzanne Potter for California News Service reporting for the Solutions Journalism Network-Public News Service Collaboration

Across the United States, landfills are accumulating trash faster than materials can decompose. In the nearly 2,000 landfills in the US, food waste contributes over 50 percent of fugitive methane emissions from municipal solid waste landfills, those invisible plumes of potent greenhouse gas emissions that seep out of landfills and into the atmosphere.

Landfills rank as the third-largest human-generated source of methane emissions in the US, according to the Environmental Protection Agency (EPA). While diverting trash altogether would be the preferred outcome for pollution reduction, about 500 landfills across the country have turned to a novel way of combating pollution from the waste that is ending up in landfills: capturing the gas emitted from organic materials and transforming it into electricity.

"Methane is already in our environment today. You either use it or lose it," says Mike Bakas, alluding to the methane that is wasted if it's not captured. Bakas leads all landfill projects and renewable natural gas business at Ameresco, a company that designs, builds and operates renewable energy plants for landfills around the US.

Methane is a potent greenhouse gas, about 28 times as potent as carbon dioxide at trapping atmospheric heat. Capturing it removes the gas's ability to stimulate the greenhouse effect that comes with its infiltration into our atmosphere.

Landfills that utilize Landfill Gas-to-Energy (LFGTE) systems, which allow for the conversion of methane to energy, are equipped with infrastructure designed to collect the gas, often encased with a layer of clay or synthetic membrane to prevent gas from escaping into the atmosphere. Once collected, the methane can be utilized in one of a few ways, as electricity to use on-site or feed into the local power grid, or as natural gas.

The amount of energy generated through LFGTE projects varies widely depending on the size and age of the landfill, the composition of waste and the efficiency of the gas collection system.

One massive landfill that spans 629 acres in Virginia produces enough landfill gas (LFG) to create 70,000 megawatt hours of energy each year - that's enough to power about 6,700 homes for a year, based on the average US household's annual electricity consumption.

While most landfills using LFGTE are actively collecting waste, not all of them are. "We've got a landfill that's been shut down for about 10 years and we still have another 10 to 20 years of gas in it," says Bakas.

Puente Hills in California is the largest LFGTE program in the country, producing enough energy to power about 70,000 homes. Before the Puente Hills landfill closed in 2013, it was the largest landfill in the US, spanning 700 acres and reaching a whopping height of 500 feet above ground level.

These types of projects first came on the scene in the mid-1970s, and experienced a big rise in popularity in the '90s - largely due to the fact that, in 1994, the EPA began encouraging landfill operators to develop LFGTE projects through its Landfill Methane Outreach Program.

So why isn't every landfill owner taking advantage of its latent treasure trove of energy? Funding, mostly.

According to Bakas, LFGTE systems can cost between $10 million and $100 million to implement.

The Inflation Reduction Act (IRA) provided tax deductions for landfills to install these systems, but there are still limitations that prohibit smaller landfills from being able to finance LFGTE. Specifically, the IRA didn't explicitly permit the use of Investment Tax Credits (ITC) for LFGTE projects, something Bakas says the industry is pushing for, as it would go a long way in helping smaller landfill projects that wouldn't otherwise be economically feasible.

There are also caveats embedded among the IRA's tax offerings that restrict landfills from receiving any of these benefits unless its owner owns both the landfill collection system and the energy processing plant, which, according to Bakas, is often not the case.

"So we need the treasury to come out and say, you can own either one or both, which would free us up to invest money in the equipment we need to do it," says Bakas.

And supporting these projects isn't just good for our air quality and atmosphere, but potentially for our pockets too. The dollars put into building these systems can be returned through the sale of electricity. And in some regions, landfill gas projects can generate renewable energy credits, which can be sold to utilities needing to meet renewable energy standards, providing an additional revenue stream.

But these projects aren't always profitable, and some may not have the capacity to ever be.

"To the extent that the site is economic, which I don't think it's a guarantee that it is, operators would probably look at how much [energy] can we produce ... and how close are we to where the energy can be used?" says Daniel Bresette, president of the Environmental and Energy Study Institute.

Bresette says that if a plant is processing landfill gas for electricity, as opposed to other types of energy, the plant may be able to do so with existing equipment, and with less concern for where the landfill is located. This is because the electricity can be fed directly into the energy grid, rather than needing to be transferred off-site to be processed.

The EPA estimates that a project that requires the installation of a new capture system would cost about $8.5 million to install and maintain, and would cost about another $3.5 million over the course of its 15-year lifespan. That number would drop dramatically for a project that doesn't require the support of a supplemental capture facility to process the LFG. It would also drop if tax credits, carbon credits or on-site electricity are utilized.

Landfills of a certain size are required by the Clean Air Act to install and operate gas collection systems. For those that don't meet sizing requirements, the industry is pushing for more government support.

"If the treasury confirms that we can use the ITC tax credits under the IRA towards these projects, then those smaller projects that were not economic might very well become economic," says Bakas.


Miranda Lipton wrote this article for Reasons to be Cheerful.


get more stories like this via email

More than $7 billion in Colorado's GDP and 9,600 jobs are projected to be lost under President Donald Trump's signature tax and spending bill which cuts incentives for clean energy, according to a new report by the nonpartisan think tank Energy Innovation.

Solar and wind capacity is expected to drop by 340 gigawatts, raising home energy costs by an extra $170 per year.

Margaret Kran-Annexstein, director of the Colorado chapter of the Sierra Club, said the new law reverses years of work transitioning to a clean energy economy.

"We have seen how investments in clean energy programs can attract more jobs, and can help people lower their electricity costs," Kran-Annexstein pointed out.

Trump campaigned on promises to end climate mitigation efforts and to bring down energy costs by increasing the use of fossil fuels. Republicans critical of clean energy tax credits have argued they amount to the government picking industry winners and losers. According to a separate industry analysis, just 30% of U.S. solar and 57% of wind projects are expected to survive under the new GOP law.

Oil and gas companies have benefited from taxpayer subsidies for decades and currently receive $170 billion a year. Kran-Annexstein noted efforts to boost clean energy, to slow climate change and reduce air pollution, pale by comparison.

"This bill is going to be giving polluters an additional $15 billion tax break, while gutting clean energy programs," Kran-Annexstein explained. "We need to be investing in solutions, and we also need to not be giving tax breaks to the companies that are causing these problems."

The new GOP law cuts more than $1 trillion from Medicaid and SNAP to finance Trump administration priorities including extending 2017 tax cuts. Kran-Annexstein worries ramping up fossil fuel production and limiting health coverage will produce dire consequences.

"If we're revoking people's access to health care, and we're going to be seeing increases in the amount of pollution, people are going to be sick and people are going to die," Kran-Annexstein contended.

Despite last-minute concessions in the Trump administration's budget, which removes alternative energy tax incentives, rural Alaska power providers now face huge obstacles to distributing power to the most rural and isolated parts of the state.

Investments in wind and solar power now face an uphill battle. Alaska's extreme weather and challenging geography already make power generation difficult and expensive. Now, with fewer incentives to diversify, the state's most isolated places will be forced to continue relying on fossil fuels for their electricity.

Pierre Lonewolf, board member of the Kotzebue Electric Association, said the loss of tax incentives means critical alternative energy programs are dead in the water.

"That has put the kibosh on our wind projects, which we are partnering with the local tribe to install two more megawatt wind turbines, another megawatt or so of solar," Lonewolf explained.

Sen. Lisa Murkowski, R-Alaska, voted for the budget bill but only after she worked to secure some alternative energy tax incentives and funding for Native whale hunters back into the measure in the debate's eleventh hour.

Lonewolf added village and tribal members have worked to move away from diesel fuel for power generation and said a lack of incentives to diversify to wind and solar will fall directly on rural Alaska's consumers who need affordable power to heat their homes.

"We don't want to have to raise our prices on electricity but we have to cover our costs to pay our people," Lonewolf acknowledged.

Kotzebue is a gateway for the diesel fuel powering 10 villages in rural Alaska. What Lonewolf called a war on renewable energy will only cause prices to keep rising in parts of the state that can least afford it.


get more stories like this via email

Renewable energy got short shrift in the budget bill passed by Congress last week and a New Mexico trade association said companies and their employees will suffer.

The bill quickly phases out tax incentives and investments for wind and solar power passed under the Biden-era Inflation Reduction Act.

Jim DesJardins, executive director of the Renewable Energy Industries Association of New Mexico, said both consumers and businesses in the solar industry have made huge investments due to the incentives.

"There's people who've got loans on their homes, and overnight this bill is going to pull the rug out from underneath them," DesJardins asserted. "This will destroy thousands of businesses, will put tens of thousands of people out of work, for what? Why are we doing this?"

Since passage of the Inflation Reduction Act in 2022, a boom in renewable energy has led to more than $300 billion in spending. Another $500 billion dollars was allocated for clean energy projects but those could now be abandoned.

New Mexico is the second-largest crude oil producer in the U.S. and with more than 300 days of sunshine, it is considered among the top 10 states for potential solar development. Most experts are not predicting a collapse in the renewable energy industry but without federal subsidies and tax credits, solar and wind farms could become more expensive.

After signing a contract, DesJardins pointed out it can take years to get a solar project off the ground and Trump's new bill would let incentives expire before the end of 2027.

"There's just so much uncertainty for a large solar project you can't say, 'Oh, we're going to put it into operation on this day.' It just doesn't work like that," DesJardins stressed. "We need to stop this herky-jerky way of doing policy whether it's for farmers, whether it's for renewable energy, it's just very counterproductive."

Despite the setback to wind and solar, DesJardins believes renewable industries will persevere, one way or another.


get more stories like this via email