Stories in topic "Alternative energy"

Arizona Solar Power Project Calculations

The following guest post was written by Tom Standing, a member of ASPO-USA and a "semi-retired, part-time civil engineer for the City of San Francisco." Here Tom takes on the calculations for a 280 MW solar thermal plant in Arizona that I looked at back in February. My conclusion from that essay was that the electrical capacity of the U.S. could in theory be met on 10,000 square miles of land (with the normal caveats about storage, costs, etc.) Tom peels the onion a few more layers and puts the energy production into perspective.

The Problem with Making Predictions - Oil or Climate

One of my most enduring memories of Washington D.C. occurred while attending a meeting on Geothermal Energy Development, back in the days before the Iron Curtain fell. In the evening after dinner, I took a colleague from Eastern Europe, on his first American visit, for a walk down the Mall. We walked, almost alone, on a still, bitterly cold, dark evening with fresh snow on the ground, and stars peppering the sky above us to see the sights, including the Lincoln Memorial. We stood staring, like backwoods tourists, through the windows of the Air and Space Museum.

We came back to the hotel for alcoholic refueling, thinking that the energy problems of the time would guarantee unending research funding into new forms of energy, and that our future was assured. That was about thirty years ago, and we were, of course, wrong, at least in terms of the funding and sustained interest in unconventional energy sources. Now we are walking back over some of the same ground. Again, fluctuations in oil prices have removed the immediate perception of the need for alternate supply, and have also weakened the credibility of those of us who try to suggest how to deal with the problem.

Prophecy, particularly when it deals with the near term future runs the risk of being corrected by the actual turnout of events. The ups and downs of energy demand, and available supply–-particularly when tied to the economic fortunes of nations, can make logical projection under one condition, but become apparently hopelessly in error when that condition doesn’t happen. Thus, at the moment, with the declining price, and apparent glut of oil, the public no longer feels that there is a crisis; the credibility of those forecasting a crisis is damaged, and can only be reconstructed over a longer period of time and changing circumstance.

Author's note: I have added a comment to the bottom of the post.

Floating Offshore Wind Power

Matthew Simmons has received quite a bit of press in the past week, after his Ocean Energy Institute floated a proposal to build a $25 billion, 5 GW wind farm in the Gulf of Maine.

Offshore wind farms have a number of advantages over their land based equivalents - they are less hazardous to wildlife, have fewer objections raised on NIMBY concerns and winds are generally stronger over the oceans than they are over land.

Ideally, offshore wind farms will be far enough away from land to avoid being seen from the shoreline, eliminating any residual objections from local residents. Current offshore projects tend to site turbines in waters less than 20 metres deep - going further offshore would mean locating them at depths of 50 meters or more, which is too deep to build supporting towers or trusses down to the sea floor at an affordable cost.

A solution to this problem is floating platforms - one of the key elements of the Ocean Energy Institute proposal. In this post I'll look at some of the work being done to develop floating offshore wind power platforms in order to enable these sorts of schemes to become a reality.

The 2008 IEA WEO - Renewable Energy

As I read through the 2008 International Energy Agency (IEA) World Energy Outlook, I had the distinct impression that I was reading contributions from people with completely opposite points of view. The pessimist warned that we are facing a supply crunch and much higher prices. The optimist in the report said that oil production won't peak before 2030.

This trend held in the section on renewable energy. The optimist noted that renewable energy is expected to "expand rapidly." The pessimist noted that biofuels are predicted to only supply 5% of our road transport fuel in 2030. And so the report goes, part rampant optimism and part rampant pessimism.

I guess the good news then is that there is something in there that will appeal to everyone, regardless of your outlook. The bad news? The claims that are directly opposed to your views will have you questioning the credibility of the report. And if you are like me--and note that between last year's report and this year's report they dropped their 2030 oil demand forecast by 10 million bpd--you are left wondering whether there is any credibility at all in forecasts that far out.

Low Temperature Geothermal Power

The ABC recently had a report on plans to power north-west Queensland with low temperature geothermal power using hot water from the Great Artesian Basin.

A Brisbane-based company says it could supply geothermal power to all of north-west Queensland. Clean Energy Australasia wants to build a $50 million geothermal power station near Longreach. But it has now also revealed plans to build a pilot geothermal project near BHP's Cannington mine at McKinlay, south of Cloncurry. The company's Joe Reichman says the Mount Isa region needs about 500 megawatts of power a year and geothermal resources could easily provide that. "It'll change the region into a powerhouse," he said. Mr Reichman says the company has applied for federal and state government grants and has support from the major mining companies in the region. If the projects proceed they would be the first geothermal power plants in Australia.

Low temperature geothermal power is a relatively new (and very low profile) form of extracting energy from geothermal sources that provides yet another option for meeting our energy needs cleanly and sustainably.

General Jones and the Chamber of Commerce Energy Plan

Well they say that “the Times they are a changin’ ” and with the impending change in the Administration and its approach to energy , and the change in the leadership of the Energy and Commerce Committee in the House, I suspect that change is what we are going to get. One indicator of a possible path forward comes from the U. S. Chamber of Commerce, where General James Jones, anticipated to be the next National Security Advisor, has been heading a panel that has just issued A Transition Plan for Securing America’s Energy Future. So I thought we might take a quick look at what it says. To quote the preamble

Global demand (for energy) will increase by more than 50% between now and 2030 – and perhaps by as much as 30% here in the United States. We must develop new, affordable, diverse, and clean sources of energy that will underpin our nation’s economy and keep us strong both at home and abroad. Our energy future must address growing shortfalls in infrastructure capacity and emerging environmental issues. . . . .And looking ahead, even the most optimistic among us must conclude that we are not well positioned to anticipate nor prepared to meet tomorrow’s energy needs.

Jobs in the Energy Business

To steal a phrase “It is the best of times, it is the worst of times,” although the rest of the opening to A Tale of Two Cities (“It was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair,”) may also be appropriate. It is also interesting, and will become more so as the new Administration seeks to find a way forward out of the compounding problems that now face it. The WSJ has noted the statements by President-elect Obama earlier:

On the campaign trail, Mr. Obama argued that spending $150 billion over the next decade to boost energy efficiency would help create five million jobs. The jobs would include insulation installers, to make houses more energy-efficient, wind-turbine builders, to displace coal-fired electricity, and construction workers, to build greener buildings and upgrade the electrical grid.

It goes on to note that if renewable energy is only brought on-line to displace conventional coal power, then the net job losses from existing industries may well offset the gains in wind power. That topic brought a discussion in comments a couple of days ago. It is, however, perhaps worth pursuing in a little more detail.

Tuckey's Tidal Dreaming

The ABC has a report today noting that Wilson "Ironbar" Tuckey is still promoting his vision of large scale tidal power generation in the Kimberly region in Western Australia.

The Federal Government expected to release their white paper on Australia's future energy needs next year and the use of tidal power in the Kimberley is expected to be one of the options under consideration.

There are renewed calls for the development of renewable energy in the Kimberley, with the federal Member for O'Connor spruiking the merits of tidal power. Wilson Tuckey wants the Commonwealth to spend $10 billion establishing the necessary infrastructure for a tidal power industry in the region.

Mr Tuckey says tidal energy could provide 10 times the country's current electrical capacity without producing any carbon emissions. He says the Commonwealth should fund start up infrastructure before commercial interests jump on board like the State Government did with the North West Shelf. "This will be the same. If the Australian Government puts in the original tidal generating capacity and the interconnecting transmission lines, which is probably the most important, the Kimberley will then see a rash of people charging in to produce that same electricity from other localities," he said.

Better Place - Bringing Electric Vehicles Powered by Renewable Energy

Project Better Place founder Shai Agassi was in town last week announcing that Australia will become the third country, following Denmark and Israel, to implement the group's vision of electric vehicles powered by renewable energy.

Better Place and Macquarie Capital Group will raise $1 billion to build a network of 250,000 charging stations and battery exchange stations in key locations along the east coast by 2012. The network will be powered by wind turbines owned by AGL Energy.

Agassi has been promoting the plan as a way to reduce our dependence on oil (the starting premise for the project was "how do you run an entire country without oil") while creating jobs and boosting the local economy (see this interview on the Today Show for his explanation). Operating in Australia will also help the group prove it can work in large countries as well as the much smaller geographical areas covered in the first 2 rollouts. Agassi also noted that the Federal Government's $500 million Green Car Innovation Fund played a part in encouraging them to set up in Australia.

Cutting Through the Coskata Cellulosic Ethanol Hype

I have a strong distaste for companies or individuals who overpromise and underdeliver. Changing World Technologies (CWT) and their thermal depolymerization (TDP) technology is probably the poster child for companies that promised lots and delivered little. The hype was that they had the "technological savvy" to "turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year." Further, they were going to "make oil for $8 to $12 a barrel." (See TDP: The Next Big Thing).

Of course as time went by, the hype unraveled. But not before the hype resulted in CWT getting earmarks for building their plant (money that went down the drain as documented here) as well as a tax credit inserted by Missouri Congressman Roy Blunt to specifically benefit CWT. That money came out of the pockets of American taxpayers, and could have been better utilized. But it was hijacked by CWT and their overpromises.

These are the sorts of implications that cause me to be very skeptical of companies that make seemingly far-fetched claims. I don't want technologies receiving legal and tax benefits because of hollow boasts. This is also the reason I have been critical in my assessments of some of the cellulosic ethanol claims made by ethanol evangelists like Vinod Khosla.