Energy Exchange

Changes to Electricity Systems Will Enhance U.S. Grid Reliability

By Cheryl Roberto / Published: April 15, 2014

Last Thursday morning, with my heart quickly jumping, I entered the grandeur of the United States Senate hearing room for the Committee on Energy and Natural Resources’ Keeping the lights on — are we doing enough to ensure the reliability and security of the US electric grid? hearing as an invited witness. I was eager to share EDF’s vision of a cost-effective, clean energy system that enhances reliability − but I couldn’t help being a little awed by the moment. I had never testified on Capitol Hill before and the dignity of the setting and importance of the message I wanted to share weighed on me.

Here are the high points of my testimony (though you can read it in full here):

The nation’s electricity system stands at a transformative crossroads: The costs of distributed generation technologies like rooftop solar and battery storage are falling and energy productivity is rising. In our digital world, people have increased demands for power quality and reliability, but needs for power quantity are predicted to fall – mostly due to “gains in appliance efficiency and an increase in vehicle efficiency standards by 2025.” As a result, our system is transforming from a one-way, centralized power delivery network in which customers passively receive electricity to a two-way flow of both power and information in which customers both receive and produce electricity. The very model of centralized, utility-scale power generation is no longer sacrosanct. The electricity systems we built in the last century, and the regulations that govern them, are no longer adequate – neither to ensure reliability, or to accommodate the rapid changes in technology, consumer needs, environmental standards, and the changing marketplace. Read More »

Posted in Clean Energy, Grid Modernization, Utility Business Models, Washington, DC / Comments are closed

Is Texas the Next Global Leader in Water? It’s Up to State Leaders to Decide.

By Kate Zerrenner / Published: January 28, 2014

This commentary originally appeared on our Texas Clean Air Matters Blog.

The Texas Comptroller, Susan Combs, recently released the Texas Water Report: Going Deeper for the Solution, which proposes a sort of revolution to solve Texas’ water woes. As Combs notes, Texas is a global energy leader, but the state should be a global water leader too. And her initiative couldn’t come fast enough. Texas, already prone to cycles of drought, is facing new water pressures, including population growth and a changing economy, which only make it harder to preserve our diminishing water supply. To rouse the state’s water recovery plan, the report prioritizes water-saving technological innovations (while stressing the need for conservation) and lauds various Texas cities for water management practices. But the report misses some key elements that are essential to keeping our water flowing. In the same way that new energy technologies have brought us closer to a cleaner, more reliable electric grid, innovations in the water arena can seamlessly reduce our water use and set the state on a sustainable path.

The report says conservation is not enough, and it’s right. However, efficiency is the most significant first step and conservation achieved through technology is a welcome counter to the infrastructure-heavy plans typically heard at the Capitol and in the State Water Plan. (What good is a new reservoir, if there’s no water to put in it?) Some of the technologies evaluated in the report include aquifer storage and recovery, inter-basin transfers, low-water fracking technologies and desalinization – what some call “game changers.” These technologies could potentially relieve our future water woes, but these projects are expensive and don’t alleviate our immediate or even mid-term water stresses. Read More »

Posted in Climate, Energy Efficiency / Tagged Clean Energy, Energy-Water Nexus, texas | Comments are closed

EDF and Allies Defend EPA Emission Standards for Oil and Gas Pollution

By EDF Blogs / Published: January 6, 2014

Source: Angela Keck Law Offices LLC

By: Tomás Carbonell, EDF Attorney, and Brian Korpics, EDF Legal Fellow

A new year may be upon us, but – unfortunately – some members of the oil and gas industry would prefer we roll back the clock on common sense, long-overdue emission standards for oil and gas equipment.

Oil and natural gas production continues to expand rapidly in the United States – and with it the potential for emissions of climate-destabilizing pollutants (especially methane), smog-forming compounds and carcinogenic substances, such as benzene. We urgently need rigorous national standards that comprehensively address the full suite of pollutants from oil and gas facilities, protect public health and the environment and conserve needless waste of our nation’s natural resources.

In August 2012, the U.S. Environmental Protection Agency (EPA) took a promising first step by issuing emission standards for new natural gas wells and other oil and gas equipment, including the thousands of large storage tanks built near gas wells, pipelines and processing facilities each and every year. These “New Source Performance Standards” (NSPS) were based on proven and highly-effective emission control technologies that leading companies have been using for years. Many of these control technologies also directly benefit a company’s bottom line by reducing avoidable waste of natural gas from vents and leaks – saving money while protecting our climate and air. Read More »

Posted in Climate, Natural Gas, Washington, DC / Read 1 Response

Bringing Fugitives To Justice In Wyoming

By Jon Goldstein / Published: October 1, 2013

Source: Scott Dalton for The New York Times

When it comes to healthy air, what you can’t see can hurt you.

Leaks of volatile organic compounds (VOC) and methane, the primary components in natural gas, may be invisible – but that doesn’t mean they are harmless. These leaks – called “fugitive” emissions – can create serious air quality problems when VOC’s are involved. Meanwhile, methane leaks mean less product available for sale and a wasted resource.

But, while you can’t always see leaks with the naked eye, you can use modern technology to help you detect and fix them. Cameras that use infrared technology to “see” leaking hydrocarbons and inexpensive hand held sensors that measure leaks are commonly used to help operators find and fix leaking equipment. Leak Detection and Repair (LDAR) programs that require operators to check for leaks frequently using these modern technologies, and expeditiously repair them, can produce huge air quality benefits. Such programs are currently required in permits for a number of operators in Wyoming’s Jonah Pinedale Anticline Development Area. Read More »

Posted in Methane, Natural Gas, Wyoming / Comments are closed

A New Study Measures Methane Leaks In The Natural Gas Industry

By Mark Brownstein / Published: September 18, 2013

This commentary originally appeared on our EDF Voices blog.

Source: Penn State Outreach/flickr

Earlier this week, a prestigious scientific journal, the Proceedings of the National Academy of Sciences (PNAS) published “Measurements of methane emissions at natural gas production sites in the United States.” This study is the first in a comprehensive research initiative that Environmental Defense Fund is helping to produce with more than 90 partner universities, scientists, research facilities and natural gas industry companies. This effort, the largest scientific undertaking in EDF’s history, is an unprecedented attempt to measure where and how much methane is being released across the entire natural gas supply chain.

By the time the work is finished, around the end of 2014, scientists working with EDF will have completed sixteen studies characterizing methane emissions in five key areas of the natural gas system: production, gathering and processing,transmission and storage, local distribution and use in operating and fueling heavy and medium weight trucks.

The study that published Monday was led by Dr. David Allen of the University of Texas at Austin (UT) and is based on some of the first-ever direct measurements of methane emissions from shale gas wells that use hydraulic fracturing, or “fracking.”

Posted in Natural Gas, Texas / Tagged EPA, fracking, Natural Gas | Comments are closed

Natural Gas And The Methane Problem: Study Shows Climate Benefit Depends On Fixing The Leaks

By Dan Grossman / Published: September 16, 2013

Methane, the primary component of natural gas, is a powerful greenhouse gas – 72 times more potent than carbon dioxide over a 20-year time frame. The largest single source of U.S. methane emissions is the vast network of infrastructure and activity involved in the production, processing and delivery of natural gas. These emissions, if not controlled, pose a significant risk to the climate. In the near term, the opportunity to maximize the climate benefit of natural gas compared to other fossil fuels rests on whether methane emissions can be minimized.

A groundbreaking study released today demonstrates that some operators have been successful in deploying technologies and strategies to minimize methane emissions from production, creating optimism that we can make the natural gas climate bet payoff. However, we also know that such technologies and strategies are not universally deployed in the industry and, not surprisingly, other studies demonstrate much higher methane leakage rates.

We simply need to be vigilant to ensure that such production is done right.

The University of Texas study, published in the Proceedings of the National Academy of Sciences, involved taking direct measurements of actual methane emissions – as opposed to estimating emissions through indirect methods such as engineering formulas, as has often been the case in earlier studies. Measurements were taken at well sites in multiple geographic regions – including the Rocky Mountain West. It is the first of 16 studies EDF is participating in to assess the scope of methane leakage throughout the natural gas supply chain (from production on through to local distribution and key end users). Read More »

Posted in Methane, Natural Gas / Tagged Colorado | Read 1 Response