Archive | Energy

Texas is the top wind power state

Top wind power states 2014
It generally surprises people when they learn Texas is the biggest producer of wind power. I mean, don’t Texans bathe in crude oil while foaming at the mouth about renewable energy? Well, actually, no. Texas has always been smart about energy. They import no electricity because they generate all they need. So, say you’re a Texas rancher who thinks treehuggers are silly. Then the nice man from the wind power company says we’ll pay you a tidy sum if we can put wind turbines on land you aren’t really using much. Will you say, Hell yeah! Well of course you will.

Wind speeds vary throughout the United States. Wind speeds also vary throughout the day and from season to season. In Tehachapi, California, the wind blows more frequently from April through October than it does in the winter. This is a result of the extreme heat of the Mojave Desert during the summer months. The hot air over the desert rises, and the cooler, denser air above the Pacific Ocean rushes through the Tehachapi mountain pass to take its place. In a state like Montana, the wind blows more frequently during the winter.

Fortunately, the seasonal variations in California and Montana match the electricity demands of the regions. In California, people use more electricity during the summer for air conditioners. In Montana, people use more electricity during the winter.

Wind power projects with one or more large wind turbines were located in 39 states in 2014. The five states with the largest generation of electricity from wind in 2014 were Texas, Iowa, California, Oklahoma, and Kansas.

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Commercial-scale rail energy storage coming to Nevada

The ability to store power so it can be instantly converted to electricity is essential to the stability of the grid. Pumped hydro, using excess energy to pump water uphill into a storage lake where it can be released to instantly power turbines, is a reliable way to store power without using batteries. Startup ARES just got the ok to build a rail energy storage system in Nevada using the same idea. Extra power is used to send two electric locomotives and four 8,600 lb. rail cars 5.5 miles uphill. To generate electricity, the train is released and it generates power as it goes downhill.

This initial system is 50MW, which is substantial. ARES says it can scale to 1 GW, and a 500 MW system would only cost $20 more than this 50 MW project. One big advantage is there are no life cycle limits or degradation of the system because there are no batteries to wear out.

Electricity powers an electric motor in a locomotive that hauls a heavy load up hill. Sitting at the top of the hill, the rail cars store energy. When the energy is needed, the cars are released to roll down hill and the electric motor runs in reverse to generate electricity.

The same electro-mechanical principle that powers the ARES system supplies the regenerative braking power in electric vehicles like a Toyota Prius:… When an induction motor that powers a train or car is reversed, it produces electricity.

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SunEdison bankruptcy highlights renewable energy problems

solar photovoltaic
The biggest problem renewable energy faces is greedhead, reckless management taking on huge debt for the company in a delusional attempt to grow-or-die. This is aided and abetted by Wall Street and hedge funds who, at least initially, profit handsomely from underwriting the debt or buying it. Company executives get juicy stock options, so it’s in their personal self-interest to do whatever they can to boost the stock price. However, little or any of this is healthy for the long-term prospects of the company.

The latest renewable energy company to disintegrate is SunEdison because no one could ever have predicted that ginormous debt, questionable and opaque accounting practices, and a relentless focus on short-term goals like goosing the stock price to pay for mor acquisitions, could ever lead to disaster. Until it does. SunEdison stock has dropped from $32 last summer to 34 cents. Lots of the blameless employees will no doubt lose their jobs and vendors may go under too.

Renewable energy has a bright future, as long as the companies grow slowly and sanely. It can be done. It must be done.

There is a timeless element to SunEdison’s swift demise: an executive with an Icarus complex chasing a fast-growing market embarks on an aggressive strategy fueled by cheap debt. Soar. Crash. Burn. Repeat.

Yet the collapse raises a bigger question: Can renewable-energy companies be profitable? Can green make green?

The answer, of course, is yes. Just as soon as they cross over a fundamental hurdle: finding a strategy that actually works.

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Renewable energy giant SunEdison files Chap 11 bankruptcy

SunEdison stock price

It’s a sadly common story. A perfectly healthy company decides it must grow fast, probably to pump up the stock price so insiders get rich quick.. It goes billions in debt, buys lots of companies. Then, when the inevitable change in market conditions happens that no one could have predicted, finds it can no longer pay the debt. In the case of SunEdison, plunging oil prices made solar less attractive, causing their house of cards to topple.

So, a whole lot of people will lose their jobs. The resultant lawsuits will take years to resolve. And none of it needed to happen and was completely avoidable. But such greedy piggishness is what too often passes for capitalism now. Oh yes, I’m sure the tops execs at SunEdison will still walk away with millions.

SunEdison’s downward spiral was largely a result of the company’s overly ambitious vision and aggressive financing schemes. Much of SunEdison success was dependent upon a stable market environment, which of course turned out to be far more volatile than imagined. While SunEdison’s massive problems were far from evident when the company was flying high, they now appear obvious in hindsight.

There will lots of collateral damage too.

Potential legal damages stemming from deals SunEdison failed to close while its finances were deteriorating could total hundreds of millions of dollars, according to court filings and people familiar with the deals. Litigation over the failed deals could add to the company’s already lengthy list of creditors and possibly extend to its publicly traded subsidiaries.

Company description:

SunEdison is the largest global renewable energy development company and is transforming the way energy is generated, distributed, and owned around the globe. The company develops, finances, installs, owns and operates renewable power plants, delivering predictably priced electricity to its residential, commercial, government and utility customers. SunEdison is one of the world’s largest renewable energy asset managers and provides customers with asset management, operations and maintenance, monitoring and reporting services.

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Cummins plans plug-in hybrid systems for heavy trucks

Plug-in hybrid systems for Class 6 trucks could boost mileage 50%. This would be a seriously big deal. Cummins is developing the technology now using a $4.5 million grant from the Department of Energy. If successful and implemented widely, this would cut trucking costs sharply and help the environment too. Imagine the savings in fuel and money if millions of trucks got 9 mpg rather than 6 mpg. Partners in the project include PACCAR (Kenworth, Peterbilt and DAF), Ohio State University, National Renewable Energy Laboratory, and Argonne National Laboratory. This is a serious attempt by major players to increase mileage on heavy trucks. Excellent.

The reduction of fuel consumption will be accomplished using a range of drive cycles designed to meet the needs of commercial fleet operators. In addition to a plug-in hybrid powertrain, the trucks will feature other technologies, including intelligent transportation systems and electronic braking. Ultimately, the researchers aim to demonstrate improved fuel consumption and state-of-the-art drivability and performance regardless of environmental conditions.

A Class 6 truck has a gross vehicle weight of between 19,000 and 26,000 pounds. The category includes trucks with a single rear axle and school buses.

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