Energy Exchange

Proving the negative: The challenge of calculating energy efficiency

By Dick Munson / Published: April 19, 2017

Andrew Barbeau, senior clean energy consultant for EDF, contributed to this post.

“Efficiency is good.” That’s the mantra, a known truth, shared by both business executives and environmentalists, who eliminate waste to increase profits and reduce pollution.

When it comes to electricity, efficiency also has proven effective. Whereas power consumption a few decades ago was rising annually at more than 7 percent, the introduction of inexpensive and efficient lightbulbs, refrigerators, and smart heating and cooling has recently led to slight declines in energy consumption, even as the economy boomed and population increased.

Efficiency may be good and effective, but it is inherently hard to calculate. How do you prove the negative? Virtually every state has wrestled with the same questions of how and why electricity use didn’t happen. States with energy efficiency standards – requirements for local utilities to incentivize customers to reduce their energy use year after year – want to know if the investments are cost-effective. With new approaches to calculating energy efficiency, Illinois is tackling that question head on. Read More »

Posted in Energy Efficiency, Illinois / Read 6 Responses

Greater Flexibility, Efficiency in Gas Markets Requires New Standards

By Natalie Karas / Published: April 18, 2017

Markets for electricity and natural gas in the U.S. grew up independently of one another. The rules in one do not always align with the rules in the other, creating challenges for both operators and regulators. Cumbersome inefficiencies are becoming more evident with the rapid evolution of the electric system. With more gas-fired power plants coming online, and the growing requirement to balance intermittent renewable sources on the electric grid, there is now a pressing need to synchronize these two markets. Fixing the disconnects means the two systems need a better framework for doing business with one another. The place where the markets meet is gas generators’ use of the nation’s pipeline system.

Flexibility is Key

Pipelines primarily make money by selling firm (i.e., premium) transportation service. This type of service places value on one thing: moving gas from point A to point B. This market design means that pipelines have no commercial incentive to provide services that are actually needed by gas generators (they get paid regardless of how the capacity is used). The fuel supply needs of gas generators vary over the course of the day and therefore require pipelines to deliver gas on a more variable basis—a “smart” service far more valuable to power generators because they are paying for what they use, rather than for pipeline capacity. Furthermore, signing up for firm service is often too expensive for gas generators who don’t need the service on every day of the year and are not guaranteed recovery of these costs in the electric markets. Read More »

Posted in Gas to Clean, General, Natural Gas / Comments are closed

More than ever, EPA’s Greenhouse Gas Inventory Program is Vital to Understanding Methane Emissions

By David Lyon / Published: April 17, 2017

In its 2017 GHGI Inventory, published last week, EPA estimates 2015 methane emissions from the U.S. oil and gas industry were 8.1 million metric tons,which is enough to fulfill the domestic heating needs for over 5 million homes.

In addition to estimating 2015 emissions, EPA has revised their estimates of previous years’ emissions based on new scientific data. The lower estimates compared to the 2016 Inventory is almost entirely due to new accounting methods – the actual decrease in emissions from 2014 to 2015 was only 2%, and this was due to fewer well completions resulting from lower oil and gas prices.

EPA still has room for improvement

Although the estimate of oil and gas emissions went down in this year’s report, it should not be viewed as a final answer since EPA plans to make further improvements including better accounting of super-emitters, which science has shown to be a major source of emissions. These changes likely would counteract the decreases in other emission sources. Read More »

Posted in General, Methane, Natural Gas / Tagged , | Comments are closed

Why We Still Need America’s Nuclear Power Plants — At Least for Now

By John Finnigan / Published: April 17, 2017

Today’s American nuclear power industry is in a state of upheaval. Four new, large-scale nuclear power plants are under construction in the United States, helped by large federal subsidies. All are being built by Westinghouse, and all have faced massive cost overruns and delays. Westinghouse’s parent company, Toshiba, recently posted a $6 billion loss due to Westinghouse’s nuclear woes. (For context, that loss is half a billion more than Toshiba spent to buy Westinghouse a decade ago.) Westinghouse filed for bankruptcy protection on March 29.

Westinghouse’s bankruptcy shines a spotlight on nuclear power’s role as an electricity source – currently providing about 17 percent of our electricity in the U.S. – and raises issues concerning whether we can count on low-carbon electricity from nuclear power. The Energy Information Administration projects nuclear power’s share of electricity generation will decline slightly through 2040, but these projections don’t reflect current trends.

Existing plants face challenging economics

Nuclear plants have long been very expensive to build, and the continued low price of natural gas has only increased cost pressure. Many nuclear plants are losing money, leading utilities to consider retiring them. Total nuclear capacity is declining, and will continue to decline in the near future as plant retirements exceed the capacity of Westinghouse’s Vogtle and Summer plants, expected to come online in 2019-2020. Read More »

Posted in Clean Energy, Illinois, New York, Utility Business Models / Read 7 Responses

Who Pays for the Hidden Costs of Coal?

By John Finnigan / Published: April 13, 2017

The Public Utilities Commission of Ohio is still deciding whether to approve bailouts for FirstEnergy’s and Dayton Power & Light’s (DP&L) old, inefficient coal plants. The Ohio-based utilities want their customers to shoulder the costs of keeping these unprofitable coal plants running.

Coal plants aren’t cheap to operate. And as natural gas, wind energy, and solar energy have become increasingly affordable in recent years, coal can’t compete anymore. Moreover, subsidizing coal plants is not just a matter of higher electricity bills. We need to take into account the hidden costs of coal, which we all have to pay. Read More »

Posted in FirstEnergy, Ohio / Read 1 Response

As Oil and Gas Industry Goes Big in the Permian, Efforts to Tackle Emissions Will Be Telling

By EDF Blogs / Published: April 13, 2017

By Jon Goldstein and Ben Ratner

Much ink has been spilled recently about big new oil and gas investments in the Permian Basin across West Texas and Southeastern New Mexico. What some are dubbing “Permania” includes a more than $6 billion investment by ExxonMobil in New Mexico acreage and an almost $3 billion one by Noble Energy across the border in Texas, among others. But a large question remains: will these types of big bets also come with the needed investments to limit methane emissions?

It’s not just an academic question. The answer will go a long way toward revealing if industry actors plan to operate in a way that serves the best interest of local communities and taxpayers. Unfortunately, New Mexico is currently the worst in the nation for waste of natural gas resources from federal lands (such as those that are found in large parts of the state’s Permian Basin). Largely avoidable venting, flaring and leaks of natural gas from these sites also puts a big hole in taxpayers’ wallets, robbing New Mexico taxpayers of $100 million worth of their natural gas resources every year and depriving the state budget of millions more in royalty revenue that could be invested in urgent state needs like education. Read More »

Posted in General, Methane, Natural Gas / Read 1 Response