Energy Exchange

Clean energy – not natural gas – drove decarbonization in 2017

Despite attempts by the Trump administration and the coal industry to limit clean energy in favor of fossil fuels – including a tariff on solar energy, a thinly-disguised bailout for coal and nuclear power plants (that was rightly rejected), and a dramatic proposed cut to energy research – we are accelerating the transition to a cleaner electric grid. In fact, last year was the first time the reduction in power sector emissions can be attributed more to energy conservation and renewable energy than switching from coal to natural gas.

The new 2018 Business Council for Sustainable Energy (BCSE) Factbook* highlights the electric power sector as the driving force behind the decarbonization of the U.S. economy. In total, power sector emissions declined 4.2 percent in 2017, mostly due to the 18.4 GW of new renewable energy we added to the grid (a 14 percent increase over the previous year’s total U.S. renewable capacity). In 2017, renewable generation represented about 18 percent of total U.S. generation (around10 percent from non-hydro renewables alone).

This explosive growth further cements renewable energy’s role in reducing emissions from the U.S. power sector. Let’s dig into the factors that led to this growth, and how we can extend this trend of emissions reductions from renewables beyond 2017. Read More »

Also posted in Clean Energy, Climate, Demand Response, Electric Vehicles, Electricity Pricing, Energy Equity, Grid Modernization, Solar Energy / Read 3 Responses

Report reveals pollution transparency problems for majority of New Mexico’s energy companies

Much is known about the methane pollution coming from New Mexico’s oil and gas industry. Scientists studying methane emissions have found the nation’s most concentrated cloud of methane shrouding the state’s San Juan Basin. And since methane is the primary components of natural gas, we know the state’s operators are wasting hundreds of millions of dollars per year because of these leaks.

We know much less, however, from New Mexico’s oil and gas companies themselves.

A new report reveals that far too few oil and gas producers are disclosing information about their methane waste problem.

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Also posted in Methane / Tagged | Comments are closed

EPA inventory shows U.S. oil & gas methane emissions remain a major problem

The U.S. Environmental Protection Agency (EPA) has released a draft of its annual update to the U.S. Inventory of Greenhouse Gas Emissions (GHGI). The draft, which now includes emissions data for 2016, estimates oil and gas operators released 8.1 million metric tons (MMT) of methane of the course of the year through leaks, venting, and incomplete combustion—a mere one percent reduction from 2015.

EPA’s estimates of annual oil and gas methane emissions are likewise essentially flat from 2005 to 2016, showing a three percent increase. While some industry groups like to highlight the 15 percent decrease in emissions from 1990 to 2016, this ignores the fact that emission estimates have hovered around 8.1 MMT for the last dozen years, having roughly the same near-term climate impact every year as the emissions of 167 coal-fired power plants. Recent science has also suggested that methane is even more potent over twenty years than previously thought; the newer science suggests these emissions pack 14 percent more warming power, and are equivalent to more than 190 coal-fired power plants.

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Also posted in Methane / Comments are closed

New science suggests methane packs more warming power than previously thought

Methane (CH4) Molecule

It’s long been known that methane is a major contributor to global warming, responsible for roughly a quarter of the warming we’re experiencing today and second only to carbon dioxide in its impact on the current climate.

But research suggests methane has an even more potent warming effect on the climate than scientists previously thought.

For example, a study in Geophysical Research Letters significantly revises estimates of the energy trapped by methane by including its previously-neglected absorption of near-infrared radiation (past research included only infrared absorption—a different part of the radiation spectrum).

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Also posted in Methane / Comments are closed

Pollution monitors should be standard in LA’s oilfields

There are several reasons to be optimistic about environmental progress in Los Angeles. The city is making massive investments in electric vehicles, making clean energy more accessible to everyday people, and cutting pollution from the ports and freeways to name a few. But with over 60,000 Angelinos living less than 500 feet from an active oil well – LA could do more to protect our health and our environment.

Oil and gas wells emit toxic chemicals that can increase our risk of developing asthma, cancer and other health problems. Recent studies by the California Air Resources Board and South Coast Air Quality Management District have uncovered elevated levels of benzene, a cancer causing agent, and other toxic compounds coming from oil and gas equipment in Huntington Beach and Signal Hill. In Santa Fe Springs  a rupture at an oil site coated numerous homes with oil and generated noxious odors.  Then there are the communities in Culver City, South LA, Compton and elsewhere living mere feet from drill sites who experience odors and health ailments on a regular basis. Most notoriously, the Porter Ranch community next to the Aliso Canyon gas field still reports respiratory problems and other symptoms stemming from a major gas leak in 2015.

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Also posted in Air Quality, Aliso Canyon, California, Methane / Comments are closed

Markets offer solutions to New England energy challenges

A recent report published by ISO-New England, the Operational Fuel Security Analysis, has certainly grabbed the region’s attention.

“The ISO has been able to maintain power system reliability during severe winter conditions without using all its emergency procedures,” the report says. “However, the evolving generation mix is increasingly susceptible to variable and uncertain factors.”

The study looks ahead at the 2024/2025 time frame, examining 23 scenarios for coal, oil, gas, nuclear and renewable sources. While it says the system is maintaining a delicate balance for now, “study results suggest that in the future, New England could be headed for significant levels of emergency actions, particularly during major fuel or resource outages.”

Although EDF doesn’t necessarily agree with all the assumptions in the study, ISO New England is asking the right questions at the right time. So what are the best policies and actions we can take to ensure the New England utility grid is clean, reliable, and resilient?

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Also posted in General, Utility Business Models / Comments are closed