Top Home Electricity Users

Stuart at Early Warning has a look at the top energy drains inside the home (at least inside a North American home) - Top Home Electricity Users.

The above chart shows the top users of electricity in a typical US home. The data are from the EIA and date from 2001 so it might have changed a bit but probably not all that much. Note that this is only electricity usage, not all energy usage.

So if you want to conserve, you can see where are the likely highest priority places to start. Of course, these are national averages so you can make regional or personal adjustments. For example, if you live in the southern parts of the US, air conditioning is likely a bigger fraction of your total, while in northern climes, it's probably less. Similarly, if you heat with electricity then space heating is likely the biggest bar for you, whereas if you don't, it will be zero.

Still and all, if you start working down the bars in size order and replace anything that is old and inefficient with new and maximally efficient replacements, this will be a fairly rational approach.

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Doha Climate Talks Enter Week 2

The SMH has an article on the latest round of climate negotiations - It's the end of the world as we know it.

THE world is on track to see "an unrecognisable planet" that is between 4 and 6 degrees hotter by the end of this century, according to new data on greenhouse gas emissions.

As United Nations climate negotiations enter their second week in Doha, Qatar, an Australian-based international research effort that tracks greenhouse gas output will release its annual findings on Monday, showing emissions climbing too quickly to stave off the effects of dangerous climate change.

The new forecast does not include recent revelations about the effects of thawing permafrost, which is starting to release large amounts of methane from the Arctic. This process makes cutting human emissions of fossil fuels even more urgent, scientists say.

The new data from the Global Carbon Project found greenhouse gas emissions are expected to have risen 2.6 per cent by the end of this year, on top of a 3 per cent rise in 2011. Since 1990, the reference year for the Kyoto Protocol, emissions have increased 54 per cent.

It means that the goal of the Doha talks – to hold global temperature rise to 2 degrees – is almost out of reach. That goal requires that emissions peak now and start falling significantly within eight years.

"Unless we change current emissions trends, this year is set to reach 36 billion tonnes of carbon dioxide from the combustion of fossil fuels, we are on the way to an unrecognisable planet of 4 to 6 degrees warmer by the end of this century," said the executive director of the Global Carbon Project, Dr Pep Canadell.

"Unless the negotiators in Doha wake up tomorrow and embrace a new green industrial revolution to rapidly change our energy systems, chances to stay below global warming of 2 degrees Celsius are vanishing very fast, if they are not already gone."

Emissions are growing in line with the most extreme climate models used by the Intergovernmental Panel on Climate Change, according to a paper in the journal Nature Climate Change that explains the Global Carbon Project's findings.

The trajectory means a temperature range of between 3.5 and 6.2 degrees by the year 2100, with a "most likely" range of between 4.2 and 5 degrees. ...

Matthew England, a colleague of Professor Pitman and fellow author of Intergovernmental Panel on Climate Change reports, said: "While the science is clear that emissions reductions are required urgently, each year we are emitting more and more greenhouse gases into the atmosphere. This is like a smoker ramping up the number of cigarettes smoked each day despite grave warnings to stop smoking altogether – sooner or later this catches up with you."

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World Energy Report 2012: The Good, the Bad, and the Really, Truly Ugly

TomDispatch has an article by Michael Klare on the latest IEA report - World Energy Report 2012: The Good, the Bad, and the Really, Truly Ugly (via Cassandra's Legacy).

Rarely does the release of a data-driven report on energy trends trigger front-page headlines around the world. That, however, is exactly what happened on November 12th when the prestigious Paris-based International Energy Agency (IEA) released this year’s edition of its World Energy Outlook. In the process, just about everyone missed its real news, which should have set off alarm bells across the planet.

Claiming that advances in drilling technology were producing an upsurge in North American energy output, World Energy Outlook predicted that the United States would overtake Saudi Arabia and Russia to become the planet’s leading oil producer by 2020. “North America is at the forefront of a sweeping transformation in oil and gas production that will affect all regions of the world,” declared IEA Executive Director Maria van der Hoeven in a widely quoted statement.

In the U.S., the prediction of imminent supremacy in the oil-output sweepstakes was generally greeted with unabashed jubilation. “This is a remarkable change,” said John Larson of IHS, a corporate research firm. “It’s truly transformative. It’s fundamentally changing the energy outlook for this country.” ...

The editors of the Wall Street Journal were no less ecstatic. In an editorial with the eye-catching headline “Saudi America,” they lauded U.S. energy companies for bringing about a technological revolution, largely based on the utilization of hydraulic fracturing (“fracking”) to extract oil and gas from shale rock. That, they claimed, was what made a new mega-energy boom possible. “This is a real energy revolution,” the Journal noted, “even if it's far from the renewable energy dreamland of so many government subsidies and mandates.”

Other commentaries were similarly focused on the U.S. outpacing Saudi Arabia and Russia, even if some questioned whether the benefits would be as great as advertised or obtainable at an acceptable cost to the environment.

While agreeing that the expected spurt in U.S. production is mostly “good news,” Michael A. Levi of the Council on Foreign Relations warned that gas prices will not drop significantly because oil is a global commodity and those prices are largely set by international market forces. “[T]he U.S. may be slightly more protected, but it doesn’t give you the energy independence some people claim,” he told the New York Times.

Some observers focused on whether increased output and job creation could possibly outweigh the harm that the exploitation of extreme energy resources like fracked oil or Canadian tar sands was sure to do to the environment. Daniel J. Weiss of the Center for American Progress, for example, warned of a growing threat to America’s water supply from poorly regulated fracking operations. “In addition, oil companies want to open up areas off the northern coast of Alaska in the Arctic Ocean, where they are not prepared to address a major oil blowout or spill like we had in the Gulf of Mexico.”

Such a focus certainly offered a timely reminder of how important oil remains to the American economy (and political culture), but it stole attention away from other aspects of the World Energy Report that were, in some cases, downright scary. Its portrait of our global energy future should have dampened enthusiasm everywhere, focusing as it did on an uncertain future energy supply, excessive reliance on fossil fuels, inadequate investment in renewables, and an increasingly hot, erratic, and dangerous climate. Here are some of the most worrisome takeaways from the report.

Given the hullabaloo about rising energy production in the U.S., you would think that the IEA report was loaded with good news about the world’s future oil supply. No such luck. In fact, on a close reading anyone who has the slightest familiarity with world oil dynamics should shudder, as its overall emphasis is on decline and uncertainty.

Take U.S. oil production surpassing Saudi Arabia’s and Russia’s. Sounds great, doesn’t it? Here’s the catch: previous editions of the IEA report and the International Energy Outlook, its equivalent from the U.S. Department of Energy (DoE), rested their claims about a growing future global oil supply on the assumption that those two countries would far surpass U.S. output. Yet the U.S. will pull ahead of them in the 2020s only because, the IEA now asserts, their output is going to fall, not rise as previously assumed.

This is one hidden surprise in the report that’s gone unnoticed. According to the DoE’s 2011 projections, Saudi production was expected to rise to 13.9 million barrels per day in 2025, and Russian output to 12.2 million barrels, jointly providing much of the world’s added petroleum supply; the United States, in this calculation, would reach the 11.7 million barrel mark.

The IEA’s latest revision of those figures suggests that U.S. production will indeed rise, as expected, to about 11 million barrels per day in 2025, but that Saudi output will unexpectedly fall to about 10.6 million barrels and Russian to 9.7 million barrels. The U.S., that is, will essentially become number one by default. At best, then, the global oil supply is not going to grow appreciably -- despite the IEA’s projection of a significant upswing in international demand.

But wait, suggests the IEA, there’s still one wild card hope out there: Iraq. Yes, Iraq. In the belief that the Iraqis will somehow overcome their sectarian differences, attain a high level of internal stability, establish a legal framework for oil production, and secure the necessary investment and technical support, the IEA predicts that its output will jump from 3.4 million barrels per day this year to 8 million barrels in 2035, adding an extra 4.6 million barrels to the global supply. In fact, claims the IEA, this gain would represent half the total increase in world oil production over the next 25 years. ...

Add all this together -- declining output from Russia and Saudi Arabia, continuing strife in Iraq, uncertain results elsewhere -- and you get insufficient oil in the 2020s and 2030s to meet anticipated world demand. From a global warming perspective that may be good news, but economically, without a massive increase in investment in alternate energy sources, the outlook is grim. You don’t know what bad times are until you don’t have enough energy to run the machinery of civilization. As suggested by the IEA, “Much is riding on Iraq’s success... Without this supply growth from Iraq, oil markets would be set for difficult times.”

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