Renewable Natural Gas

Dominion Energy is rapidly expanding the use of renewables like solar, wind and hydropower. But did you know that renewable energy can also come from farms, food waste and landfills?

That’s right. Thanks to technological innovation, we can capture waste methane from farms and other sources and convert it into clean energy that can heat homes and power businesses.

It’s called renewable natural gas, or RNG, and it’s transforming the future of clean energy. When methane is converted into RNG, it captures 25 times more greenhouse gases from the atmosphere than are released when RNG is used by consumers. That makes RNG better than zero-carbon. It’s actually carbon-beneficial!


How are we leading the industry?

At Dominion Energy, we’re all in on renewable natural gas. We’re not only leading the industry in producing RNG, we’re also working with other producers to bring more of it onto our pipeline system to serve our customers.

Our goal is to meet 4 percent of our gas utility customers’ needs with RNG by 2040. Because RNG captures 25 times more greenhouse gas than it releases, meeting 4 percent of our customers’ needs with RNG will offset their carbon footprint by 100 percent!

Producing RNG

  • We’ve joined forces with Smithfield Foods to form Align RNGSM, the largest RNG partnership in the U.S. We’re jointly investing $500 million over 10 years to produce enough RNG from Smithfield’s hog farms to power 70,000 homes and businesses across the country. This historic partnership will reduce the same amount of greenhouse gas emissions as taking 500,000 cars off the road for a year or planting 40 million new trees.

Procuring RNG

  • Dominion is also purchasing RNG from a number of waste facilities around the country. Project underway include: the South Davis Water District and Bayview Landfill in Utah, the American Landfill in Ohio, and the Upper Piedmont Landfill in North Carolina.


Where does RNG come from?

pig illustration

Cow illustration

old food illustration

landfill illustration

So how does RNG work?

When animal waste and other organic material breaks down, it produces methane, or natural gas. Converting it into renewable natural gas is simpler than you might think. Here’s one example of how it works:


Capturing Methane from the Farm

Methane is captured from covered lagoons, or digesters, and transported to a central conditioning facility.

farm

 

Converting it to RNG

The methane is processed at the central conditioning facility to meet pipeline quality standards.

extractor

 

Delivering to Home and Business

The RNG is then put into existing distribution systems to serve local homes and businesses.

Home or Business