A trash incinerator in Southwest Baltimore is the city’s largest single source of air pollution. But a state law has nonetheless allowed it to collect roughly $10 million in subsidies over the past six years through a program intended to promote green energy.

Few commuters who pass the imposing white smokestack on Interstate 95 have any idea that the plant burns their household waste, that their electric bills help to maintain it, or that it releases thousands of pounds of greenhouse gases and toxic substances — carbon dioxide, hydrochloric acid, formaldehyde among them — into the air every year.

Wheelabrator Baltimore gets the subsidies because lawmakers agreed in 2011 to classify trash as one of the most environmentally friendly sources of renewable power, on par with wind energy.

The waste-to-energy industry helped write the legislation that awarded it the coveted renewable label that qualifies incinerators for the subsidies. Maryland is one of fewer than a dozen states to reward trash-burning in the same way as it does windmills.

Critics say that’s just one example of how Maryland’s renewable energy incentive program is like the federal tax code: It’s full of breaks and handouts that might have made sense at one time, but have now grown out of control.

Some also question whether burning black liquor — a waste product from paper mills — should qualify as renewable energy eligible for money under the program. A paper mill in Western Maryland and others across the Southeastern United States have collected $60 million from Maryland’s electricity ratepayers.

While there is broad support in Maryland and other states for building a clean and renewable energy supply, the debate shows disagreement over how to get there. Politicians generally support efforts to reduce the fossil fuel emissions that are causing the climate to change. But they have been unable to come to a consensus on just what should be counted as green energy.

Del. Jeff Waldstreicher has sponsored legislation to stop rewarding renewable but dirty fuels and focus on truly green energy. “Each of these elements individually was well-intentioned when it was put in the renewable-portfolio standard,” the Montgomery County Democrat says. “Cumulatively, we see it might not be as renewable as we originally thought.”

Burning trash to create energy was once widely viewed as a savior, a technology that would make productive use of waste while reducing reliance on environmentally unfriendly landfills. The approach was endorsed by the U.S. Environmental Protection Agency under President Barack Obama. And Wheelabrator, the New Hampshire company that owns and operates the plant that overlooks Russell Street, emphasizes that it has met and exceeded hundreds of air quality standards.

To read the full story, visit http://www.baltimoresun.com/news/maryland/environment/bs-md-trash-incineration-20171107-story.html.

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