Reimagined and Revamped. Fighting the spread of nonsense often feels like a Sisyphean task. However, the joy is in making the information available, not the hope of conversion.

Money better spent?

[Note to reader, I'm trying to catch up on my blogging. I started writing this post over 6 months ago, so it may be a bit weird to read]


The other day I was thinking about this War in Iraq. Im sure I dont need to go into all the reasons its a stupid war. However, I , like many people have been disturbed by the amount of money we are spending ont his war. I, like many others think that money could be better spent.

Lets put a number on the cost of the war as of now. Some folks will pin this number at somewhere between 3 and 5 trillion dollars. Trillion. And I do get why the numbers add up that way, they are taking secondary and indirect expenses into account,as they should. Its hard to really worry about Obama's costs after 6 years of funding this nonsense.

As of right now, its about 500 billion dollars. If we stopped everything now, it would still get up to over a trillion dollars. Some pin the amount, using direct costs at 1.2 trillion. There are a lot of things you can buy with 1.2 trillion dollars. But lets talk about getting off carbon producing fuels and moving into renewables. If we started an apollo project on energy, could we go carbon free?

Dr. Richard Perez outlines how much solar we would need to ameliorate our energy issues. The clear idea here is that not only is there plenty of energy from the sun, but we get to have it year after year after year.

I wont go into all the challenges of going renewable. There is a lot, its substantial, but none of it is impossible. It will take work, and money.

How much? Well Solar buzz neatly outlines the entire market as it currently stands. A solar module costs over 4 dollars per watt, this does not include the installation costs, which can double this cost.

How much energy do you use? Well, the average family consumes about 2000 watts. [1] [2] This power is an average of daily use throughout the year. Obviously airconditioning in the summer consumes far more electricity than most any electricity use at any other time of year (unless you have electric heat). In a year, the average family has used up about 14,000 Kill watt-Hours of energy (the difference between power and energy is like the difference between horsepower of your car engine and the number of miles you can go).

OK, regardless of how much it costs for a family, lets look at how much electrical energy our country uses. As a country, we use about four trillion kilowatt-hours of electrical energy every single year (considering our population and GDP, that is pretty pathetic). Anyway, if we were to spend 100% of the war costs on solar panels, we would be able to supply...drum roll...

300 million kilowatts. A kilowatt for every person. Now we have to remember... this doesn't mean that that much power would be supplied by this amount of solar installed. You have to cut it by half, for day/night, and perhaps another 50% to deal with rainy days, snow, dust, age, etc. However, in America that 300 million population number include kids. Housholds tend to have more than one person in it, so really it does seem that the cost of the war could have been spent on applying solar to every home (even though, not every home is a candidate for solar).

That same article from Perez, by the way, points out that even though every home may not be able to have a solar installation (like apartment buildings), solar can be decentralized. That means power for some homes can come from solar installations that are above parking lots somewhere else in the state.

When I first did this calculation, I was disappointed. I figured that damn war cost so much in direct costs, we could have had renewable power for everyone. Its close, but there are still government, public and private corporations and industry which uses hoards of power. In fact, about half of all power is residential use, and the other half is everything else.

However, lets remember how we got here, we have spent literally trillions of dollars and millennia of man-hours creating an oil based economy, the expectation of switching over to to a renewable economy, one that allows us to completely forgo foreign supplies of energy (be it oil or even nuclear material) is a high mark indeed. But clearly it can be done, we had money to waste on baseless reasons to go to war, we can do it for ourselves.

In this article I focused on solar. There are plenty of other avenues for energy. We are best if we keep it decentralized if possible, renewable, and encouraged by our government.


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Great article! But I don't see how the math adds-up. You say that we've spent at least $3 trillion on the war but that this is only enough money to purchase a tiny fraction of solar-electrical energy. For my personal residential-use I could completely offset my electrical bill with a 'large' 7 kW solar install which costs about $30k. So wouldn't that $3T purchase a similar system for 100 million homes -- i.e., all of us? And if you assume that those 7 kW systems average about 2 kW during the entire day/month/year that works out to 17,000 kW-H per year and 1.7 QUADrillion kW-H for the entire system.

So, I think one of us must've done the math wrong! Was it me? My intuitive sense immediately disagreed with your assertion that all that money couldn't buy a significant amount of solar energy, so I'm hoping you will find the error was on your side.
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Oops, so I just re-reviewed your article and I see that you were using both smaller war costs and higher solar install costs. We are in agreement about the electrical usage and solar-panel costs, at least. I still don't think you math adds-up, though. For one, I think you're overestimating the cost of solar installation; most of the cost is the panels. And I suspect that much of the electrical usage (from the quoted total) is not residential, or not actual electricity but rather 'energy' usage (which includes fossil fuels). I still think that the -- at a minimum -- $500B for the war could have installed 'full' solar panels on every residence in the country, and offset a large portion of our fossil fuel use (even if not a majority? but that's still debatable, too).
Hi tony, thanks for stopping by and reading some of this. I appreciate your thoughts!

I dont think we are in disagreement as much as you think.

I couldn't really use the 3 trillion dollar mark for the war becuase that number is speculative. It is based on an estimate and projection rather than what we have actually spent.

In the same vein I don't like to use projections for solar costs and efficiencies for this becuase the idea was to hypothetically take the cost of the war and spend it on solar now.

I was talking about a complete replacement of electricity coming from coal and fossil fuels to decentralized solar power generation. We agree that it certainly could "buy a significant amount of solar energy". I just don't think it can completely replace how we get it.

Perhaps I should have linked to some of my claims (I write posts late at night)

37% of all power generated is for residential use. (I used half)

Most of the cost is not the panels presently. about 1/2 the cost of the panel is the PV and about 1/2 the cost of the installation is the panel (presuming we are not talking about do-it-yourself installation). Don't forget installation includes the cost of other component requirements other than the panels themselves, like racks, inverter, etc. The cost of an installation is 8-12 dollars per watt. I assumed residential installations, not utility installations which is is closer to 6 dollars per watt. Cost of PVs are about 2.50 per watt. Cost of panels are about 4.60 per watt. I know first solar is claiming 98 cents/watt, but we'll have to see on that one, their modules may be more expensive or have shorter life.

BTW here is another article on it. but that one compares world and US GDP, not a specific opportunity cost like I did. And they talked about just replacing oil products (which pales in comparison to coal use).
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