Energy Exchange

Leading States Tackling Fugitive Emissions Problem Head-On

By Matt Watson / Published: April 10, 2014

You see something once, and it might just be an anomaly. See it twice, maybe coincidence. But when you see it a third time – that’s a pattern. A trend.

With Ohio’s move last week to control “fugitive” emissions from oil and gas operations, that’s what we’re seeing – a rapid trend from leading states to control this major source of air and climate pollution. The Ohio rules come on heels of similar actions in Wyoming and Colorado. Together, these rules signal a fast-growing recognition that fugitive emissions are a problem that has to be dealt with, and that there are cost-effective ways we can slash these emissions today.

Also posted in Air Quality, Colorado, Methane, Ohio, Wyoming / Read 1 Response

A New Study Points to the Need for Improved Air Monitoring in Texas

By Ramon Alvarez, Ph.D. / Published: April 4, 2014

Source: Dallas Observer

A new study accepted for publication in Environmental Science & Technology takes a close look at the amount of certain air pollutants in the Barnett Shale, a booming oil and gas region in North Texas. Using public monitoring data from 2010-2011, researchers from the University of Texas at Austin compared air pollution levels measured at a monitor surrounded by oil and gas operations to the levels that would be expected based on available emission estimates. The result brings to light that the emissions inventory from the Texas Commission on Environmental Quality (TCEQ) for the Barnett Shale does not add up to the observations.

There are numerous air pollutants that can be emitted by oil and natural gas development. Depending on the local composition of the produced gas, emissions can often include volatile organic compounds (VOC, such as propane, butane, pentane, etc.) that contribute to the formation of ground-level ozone (also known as smog), and toxic air pollutants like benzene and hexane that are directly hazardous to human health. Methane, the primary ingredient in natural gas and a greenhouse gas catching lots of attention these days, is another powerful pollutant associated with these operations. Unlike the pollutants listed above, methane directly affects the health of our climate rather than human health. Fortunately, available technologies designed to capture methane are also effective in reducing these other pollutants. However, methane controls alone may not ensure that local air quality concerns are addressed – these require special attention. Read More »

Also posted in Air Quality, Texas / Read 1 Response

Latest EPA Greenhouse Gas Inventory May Not Reflect Full Scope of Oil and Gas Emissions

By David Lyon / Published: March 13, 2014

The Environmental Protection Agency recently released its draft inventory of annual U.S. greenhouse gas emissions. Reporting 2012 data, the inventory estimates methane emissions coming from natural gas and petroleum systems at around 7.6 million metric tons – that’s enough natural gas to provide energy to over 7 million homes annually. This new estimate when compared with last year’s report, which estimates emissions for the 2011 calendar year, shows overall methane emissions from natural gas and petroleum systems are 1.2 percent lower. Although this seems like good news, the new data is no cause for complacency, as it’s important to understand the cause of the changes which requires closer examination.

The draft inventory introduces some new methodological changes that reduce estimated emissions from previous years. The primary change was driven by the way EPA estimates emissions from gas well completions and workovers, the steps that follow hydraulic fracturing and clear liquids and sand from the well before production begins. Read More »

Also posted in Air Quality, Climate, General, Methane / Read 1 Response

Science and Economics Agree: The Time is Right for California to Get Serious About Methane Pollution

By Larissa Koehler / Published: March 10, 2014

Recent numbers from the Intergovernmental Panel on Climate Change (IPCC) show that methane (CH4) is about 80 times more potent than carbon dioxide (CO2) in contributing to climate change over the first 20 years after it is released. Short-lived climate pollutants, like methane, are a large factor in determining how fast our climate will change over the next few decades.

These figures are particularly relevant in California where natural gas (which is about 99.9% methane) is used throughout the economy. For example, natural gas generates much of the state’s electricity through gas-fired power plants, is extensively used for home heating and cooking, and is increasingly being deployed as an alternative fuel for the state’s cars and trucks.

Yet, while California continues to operate and further build out a natural gas backbone in its energy economy, venting and leakage of uncombusted natural gas from pipes and machines can have an environmental impact. In fact, research shows that keeping methane leakage down to a minimum level is the only way to guarantee that the use of natural gas will provide immediate climate benefits, when switching from petroleum products. Read More »

Also posted in California, Colorado, Methane, Wyoming / Comments are closed

Practical Air Pollution Controls Even the Oil and Gas Industry Can’t Deny

By Mark Brownstein / Published: March 3, 2014

This commentary originally appeared on our EDF Voices blog.

Everyone knows that if you want your kids to grow up strong and healthy, they need to eat their vegetables. But as any parent knows, it’s easier said than done. That’s why in my house, there is a rule: you can’t have any dessert until you eat your vegetables.

Now, of course, my kids like to argue with me and my wife about exactly how many vegetables they have to eat and whether they can reach into the fridge and select a different vegetable if they don’t like the one she or I cooked that night. That’s okay. We like to encourage creative problem solving. But there’s no getting around the rule. You must eat your vegetables.

As I see it, methane pollution from the oil and gas industry is a lot like kids and vegetables. Reducing it is good for them, but we have to have a rule that requires them to do it. Read More »

Also posted in Air Quality, Climate, Colorado, Methane / Tagged EPA | Read 1 Response

Final Order from NYPSC on Con Edison Rate Case Reveals Especially Encouraging Language on Climate Change Directives

By EDF Blogs / Published: February 27, 2014

By: Elizabeth B. Stein, Attorney and Adam Peltz, Attorney

Source: Iwan Baan

In Tuesday’s blog post, we discussed the recently concluded Con Edison rate case, its context, and its significance in advancing clean energy and grid resilience in New York. Today, we take a closer look at the final Order posted last Friday by the New York State Public Service Commission (the Commission) to uncover some of the more encouraging outcomes buried in this 300+ page document:

Con Edison agreed to various measures that allow for more distributed generation, i.e. on-site power generation, such as combined heat and power, rather than relying solely on power generation and distribution from the traditional, centralized grid. For example, Con Edison agreed to pay for some fault current mitigation, which enables distributed generation to be connected to portions of Con Edison’s grid where it would otherwise be prohibited, and agreed to develop an implementation plan for a microgrid pilot. Additionally, Con Edison agreed to treat customer-sited projects, including distributed generation, as integral parts of its system by considering them in its 24-month planning horizon. Because some distributed generation can operate in an ‘islanded’ mode, or separate from the main grid, and can thus continue operating in a power outage, distributed generation can play a critical role in improving resilience. Read More »

Also posted in Air Quality, Clean Energy, Electric Vehicles, Electricity Pricing, Grid Modernization, Methane, New York, Renewable Energy, Utility Business Models / Comments are closed