Map of coal and oil-fired power plants in the United States

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In 2010, coal-fired power plants represented 45% of the electricity generated in the United States and oil a smaller amount, 1%. Combined together they are the dominant air polluters and facing tough new restrictions from the EPA 마이펫의 이중생활 자막.

Unfortunately, they have a few years to clean-up and that doesn’t help if you live in one of the toxic twenty states 다운로드. Visit the previous link to see how your state compares, or scan this map to see if any of the polluting power plants are close to you.

 

Continue reading Map of coal and oil-fired power plants in the United States

How old are U.S. power plants?

We have an aging fleet of power plants:
  • 51% of all generating capacity is 30+ years old.
  • 73% of all coal plants are 30+ years old
  • 24 out of 25 oldest plants (60+ years) are hydropower
  • Nearly all nuclear plants are 20+ years old

Here is a graphic from EIA with more detail 공무원 이력서. The pie chart shows how much generating capacity comes from each fuel type. The graph shows capacity by year the plant was built.

Notice that hydropower was the first energy source built, the creation of coal plants dominated from 1950 to the mid-80s, and it’s been all natural gas since then 플래시 플레이어 디버거 다운로드.

 

 

But, age may not matter when it comes to operating power plants, from Wiki Answers:
In a nutshell, it is not correct to assign human attributes (e.g., lifetimes) to inanimate objects 다운로드. Consequently, the operating span of a coal fired power plant can be unlimited since any degraded or failed component can be replaced with a new one 다운로드. The decision on whether to make a refurbishment, or to build a new plant, is merely a question of relative economics and investment risk. For example, the cost of a single replacement part is almost always less than the cost of replacing the plant 마틸다 자막. However, in an old plant, there is a risk that many additionally worn parts also will need replacement soon. Plant owners evaluate these tradeoffs each time a major component fails and make the decision whether or not to retire the plant 독재자 다운로드.

The United States continues to go green – CO2 emissions near 1990 levels

CO2 emissions in US drop to 20-year low

In a surprising turnaround, the amount of carbon dioxide being released into the atmosphere in the U.S 다운로드. has fallen dramatically to its lowest level in 20 years, and government officials say the biggest reason is that cheap and plentiful natural gas has led many power plant operators to switch from dirtier-burning coal 다운로드.

Isn’t that great news?

I think we need some uplifting climate change news with all the “doom and gloom” stories out there 슬롯 머신 게임 다운로드. Let’s keep it going.

The United States has cut its CO2 output more than any other country in recent years, with our output dropping since 2007 eq두이노.  We are now close to 1990 levels and may be able to fit in with the Kyoto Protocols.

Of the fossil fuels, natural gas releases the least amount of air pollution and CO2 스포티파이 앱 다운로드. It is a homegrown source which improves our energy independence and stability, as well as keeping our money at home.

Coal has gone from producing half our energy to only one-third 다운로드.

Good news!

 

** Fracking for natural gas – it is unknown how destructive this new, hugely popular process is. 

 

Continue reading The United States continues to go green – CO2 emissions near 1990 levels

Wind is cheaper than coal? — Fact checking this statement

The other day I heard in passing, “wind is now cheaper than coal.” If true, this symbolizes the holy grail of renewable energy. It would mean that a turning point for not only cleaner energy, but global warming, climate change, pollution, foreign oil dependence, and more 아마존 앱스토어 다운로드.

To fact check this, I pulled up the top 20 results from Google and narrowed them down to the below articles (most were duplicates pointing at these 5 stories) 프린텍 라벨메이커 다운로드.

Not at all definitive but it does give you an idea of the state of the industry. Just keep in mind that the prices may or may not include subsidies or tax breaks, which can drastically change the costs quoted below svn connector.

 

Jul 2012 – In India, wind is cheaper than coal in Indi (w/out subsidies) (Bloomberg Business)

The cost of wind power has dropped below the price of coal-fired energy in parts of India for the first time as improved turbine technology (from GE) and rising fossil-fuel prices boost its competitiveness, Greenko Group Plc (GKO) said 국민 보건 체조.

 

Mar 2012 – In Michigan wind is cheaper than coal (American Wind Energy Assoc 다운로드.)

The Michigan Public Service Commission (PSC) recently issued a report that finds that electricity generated from renewable energy sources, at an average cost of $91 per megawatt-hour (9.1 cents/kilowatt-hour), is almost one-third cheaper than the cost of electricity from a new coal-fired power plant ($133 per MWh, or 13.3 cents/kWh) 다운로드.

Further, the report notes, “The actual cost of renewable energy contracts submitted to the Commission to date shows a downward pricing trend apr 다운로드.

 

Feb 2012 – In California, prices doubled in the first decade of 21st century, since 2011 are dropping to parity with natural gas (SF Gate)

The price of renewable power contracts signed by California utilities more than doubled from 2003 through 2011 but has now started to plunge…

The cost of buying electricity from a new natural gas power plant…(in 2011) ranged from 7.5 cents per kilowatt hour to 12 cents per kilowatt hour, depending on the length of the contract…The cost of renewable power from wind and solar facilities averaged between 8 and 9 cents per kilowatt hour 리눅스 ntp.

 

Nov 2011 – Investigation of Bill Clinton’s claim that wind/solar are cheaper than nuclear (Politifact)

  • Conventional Coal – 94.8 (dollars/MWh)
  • Wind – Onshore – 97
  • Nuclear – 113.9
  • Solar – Photovoltaic – 210.7
  • Wind – Offshore – 243.2
  • Solar – Thermal – 311.8

Source: DOE’s Energy Information Administration

 

Nov 2011 – Google retires its initiative RE

It’s not clear here if Google feels this is already won and moving on, or if they have had enough and are quitting 다운로드. One thing is certain, Google invested nearly a billion dollars ($850 million) in renewable energy last year.

This initiative was developed as an effort to drive down the cost of renewable energy, with an RE<C engineering team focused on researching improvements to solar power technology 영어 동화 다운로드. At this point, other institutions are better positioned than Google to take this research to the next level. So we’ve published our results to help others in the field continue to advance the state of power tower technology, and we’ve closed our efforts.

 

Continue reading Wind is cheaper than coal? — Fact checking this statement

Why do experts always lowball clean energy projections?

Last month, Michael Noble of Fresh Energy put up a fascinating list of projections made by energy experts around 2000 or so. Suffice to say, the projections did not fare well 버즈런처. They were badly wrong…

What should we take from this?

The projections weren’t just off, they were way off. You can find similarly poor projections from the ’70s that underestimate the spread of energy efficiency and other demand-side technology solutions (They thought they were going to need hundreds of nuclear plants) Tinyumbrella download. Similarly terrible projections were also common in the early years of cell phones.

What do cell phones, energy efficiency, and renewable energy have in common 무한의 탐정2 다운로드? One, they are dynamic areas of technology development and market competition, which makes straight-line projections pretty useless. And two, they are distributed, with millions of loosely networked people and organizations working on them in parallel 탈옥 유튜브 다운로드. Distributed, human-scale technologies come in small increments. They replicate quickly, so there’s more variation and competitive selection, and thus more evolution 다운로드.

 

Keep reading: Grist – Why do ‘experts’ always lowball clean-energy projections 다운로드?

 

 

Continue reading Why do experts always lowball clean energy projections 다운로드?

Coal power plants are going offline, in favor of Natural Gas plants

“In the past year, coal plants have been facing a perfect storm of falling natural gas prices, a continued trend of high coal prices and weak demand for electricity,” Susan Tierney wrote in the report 인스타그램 mp3 다운로드.

Tierney wrote that those factors have combined to make coal a less desirable fuel source.

Coal-generated electricity has been waning over the past few years, dropping to its lowest level on record in March of this year, according to the U.S 오토 캐드 2014 다운로드. Energy Information Administration.

At the same time, natural gas-powered plants are becoming increasingly popular as the price of the fuel falls to record prices and few emissions emitted by natural gas 다운로드.

According to Doyle Trading Consultants, the trend is expected to continue as more than 41,000 megawatts from coal-fired power plants could be retired by 2020 공인단기. If true, the coal-fired fleet would be cut by 17 percent in eight years.

 

ViaPerfect storm sinking coal-fired generation, report says

Continue reading Coal power plants are going offline, in favor of Natural Gas plants

Apple, Amazon, & Microsoft build data centers around dirty energy

The current explosion in cloud computing offered by major IT companies is driving significant new demand for dirty energy like coal and nuclear power, according to a new report from Greenpeace International 다운로드.

The report, “How Clean is Your Cloud?” shows a growing split within the tech industry between companies that are taking steps to power their clouds with clean energy, like Google, Yahoo and Facebook, and companies like Apple, Amazon and Microsoft who lag behind by choosing to build their growing fleets of data centres to be powered by coal and nuclear energy 다운로드.

“When people around the world share their music or photos on the cloud, they want to know that the cloud is powered by clean, safe energy,” said Gary Cook, Greenpeace International Senior Policy Analyst 스타2 크랙 다운로드. “Yet highly innovative and profitable companies like Apple, Amazon, and Microsoft are building data centres powered by coal and acting like their customers won’t know or won’t care.”

The report research found that if the cloud were a country its electricity demand would currently rank 5th in the world, and is expected to triple by 2020 아르미안의 네딸들 다운로드.

“While many IT companies have made great strides in efficiency, that’s only half the picture – they need to make sure their energy comes from clean sources,” said Gary Cook, Greenpeace International Senior Policy Analyst 리암 갤러거 불법.

Companies like Google, Yahoo and Facebook are beginning to lead the sector down a clean energy pathway through innovations in energy efficiency, prioritising renewable energy access when siting their data centres, and demanding better energy options from utilities and government decision-makers 다운로드.

 

keep readingApple, Amazon, & Microsoft choose dirty energy

Over 100 coal plants have closed in U.S. – since last year

프란시스하 다운로드

Two utilities announced the planned closure of nine coal plants in Illinois, Ohio, Pennsylvania and New Jersey, bringing total retirements (executed and planned) since January 2010 past the 100 mark to 106 다운로드.

A combination of high domestic coal prices, low natural gas prices, new air quality regulations, coordinated activist pressure, and cost-competitive renewables are making coal an increasingly bad choice for many power plant operators 고독한 미식가. Along with the 106 announced closures, 166 new plants have been defeated since 2002.

More information – Clean Technica