The Power of Renewables

Check out this picture. It shows just how much space would be needed in a desert to provide electrical power for the whole world via concentrating solar technology. Surprisingly to some, the space needed to utilize sources of renewable energy is really quite small on the world scale, the problem is moving that energy to the places where it is used.
Wind power distribution is similarly small, however, there's no one big place like a desert where one may put *all* the wind turbines. Wind resources are far more spread out.

Also, as they are now doing in California, it is economical to place solar panels on the roofs of flat roofed buildings. A store like a Walmart or something similar can produce quite a bit of power in a day. You should check out the new Sam's Club in Fayetteville AR with their innovative use of dimming lights coupled with skylights. Very seamless. All that is needed is to place solar panels between the skylights on the roof and it is a complete system.

One benefit of solar is that it can be used anywhere unlike wind and hydro. Sure, you may not get as much in Winnipeg as you do in Tucson, but you'll still get some.

WiredForStereo

Another Featured Renewable Energy Generation System

As you've seen on here a few times before, I like to feature little renewable energy projects that are good not only for their owners and the environment, but also help spread the message by being conspicuous. I've talked about the ones in the pics below, at Walmart in Lowell AR, and also at St. Thomas' in Springdale. Feel free to click on the pictures to get a better view.

















Here is a new system that is set up right next to the freeway in Rolla MO. It consists of a Bergey Excel S 10 kW wind turbine, about 2 kW of solar panels and a weather station. It is part of a project by the University of Science and Technology. The setup is on the front lawn of the Highway Patrol Headquarters and its purpose will be to test the performance of the system as well as keep track of all sorts of weather stuff. To the left you can see the 10 216 watt solar panels.












Here is the brains of the operation, the inverters, weather station recorder, and whatever else. It's hard to see, but there is a rainfall recording device attached near the top of that yellow post next to the propane tank in the background. I assume it's wireless.






















Here is a picture looking up at the turbine and the anemometers of which there are three. No the tower is not straight, but it doesn't really matter as long as it doesn't fall over. For a little perspective which is hard to get standing next to the thing, it is on a 36.5 meter (120 feet) tower and the blades are 6.7 meters (22 feet) in diameter.













I didn't know what this was right off.


I had either never seen one before or never noticed. I did a little research and found out that it is a pyranometer which measures solar irradiance.














Here is the whole thing. It looks really good from the freeway. If you look up Bergeys, you'll find that this one has a custom paintjob as Bergeys have a very characteristic yellow to them. There's another one with original paint along the freeway in Springfield coming back from Lambert's that is on a monopole with a solar system with it too. I believe it is next to some sort of utilities office. Both excellent examples because a Bergey Excel is a great turbine for whole home service. One of these should easily be able to provide all the electricity for an efficient home in a moderate wind area. This unit is the grid connected unit, they also make a 7.5 kW low wind speed optimized unit for battery charging.













The wind was pretty heavy, so I decided to take a quick video to show how loud the wind turbine is. The problem is, I was standing right under the thing and it was no louder than the wind. In fact, on the video, it is virtually impossible to pick out the sound of the turbine. Admittedly, my digital camera does not have the best microphone.


Special thanks to the University of Science and Technology.
WiredForStereo

The Way of Energy in the Future

I was out working in the garden this morning and I got to thinking about the gas crisis and peak oil and all the rest. So I decided to write up a little prophecy sort of thing. That is not to say that the following stuff is my prediction of the future, though in some cases it is, it is just how I feel things may go or should go. So don’t quote me in the future claiming that I said something that didn’t come true so I’m a false prophet. I am just presenting an opinion of how I think it will go or how I’d like it to go, and I’m certainly not an apocalypse monger.

First thing on the agenda is fuel. I’ve read a lot of stuff and seen a documentary or two that would have us believe that the oil supply will suddenly come to an abrupt end, resulting in mass chaos, rioting, and the end of “Dancing with the Stars.” Unfortunately in the latter case, I doubt this will happen. Since the Arab oil embargo, things have changed a bit, oil supplies have proliferated, there are new sources, new processes, and new ways of thinking as well as the possibility for vehicles that use much less fuel. I seriously doubt a sudden end for a number of reasons, first being the oil sands which are mined primarily from Alberta, Canada in this part of the world. Oil sands are much more difficult and expensive to mine than regular oil, but that brings up the whole point. There is lots of oil that is just not economical to get to. But enough to power the whole world at current consumption levels, not likely. I believe it will just get more and more expensive until people largely stop using it. The current trend already sees people driving less, using less fuel and buying smaller cars. When viable mass produced electric cars come on the market, (that’s when, not if) oil consumption will drop further. Eventually, the remaining oil supplies will likely be used to extinction in poorer countries for powering vehicles while they are used for industrial purposes in the United States, used for plastics and petrochemicals. I’d like to see an electric car revolution, I personally want to get an electric bicycle and convert my pickup into a series hybrid.

Biofuels. The use of biofuels that take the place of food crops in the fields must end. People come first, and the first thing that people need is food. We don’t need to be growing fuel where our food should be coming from. Hopefully cellulosic ethanol and algal biodiesel will come in to wider usage. I see them as recreational fuels, like charcoal briquettes in a way. In the same way as you might say “we’re gonna have a barbecue, did you get the briquettes?” you might also say “let’s go out on the boat, did you fuel it up?” The concept will go further as series hybrids or electric cars with range extenders like the Chevy Volt concept enter wider usage. “Lets go on a road trip, did you put biodiesel in the car?”

Housing. I was in Lowe’s the other week and was excited to see a book of energy efficient homes on the shelf near the checkout. My excitement quickly became disgust when I found that the primary feature of these “energy efficient home designs” was 2x6 walls. The best a 2x6 wall can expect to get using spray foam insulation is about R30 insulation value. That is not good enough, especially since the boards themselves present huge problems with thermal bridging. One of my home design plans features no less than R60 whole home insulation, that is ten inches or better of spray foam insulation and air tight. The best solution is adoption or at least some sort of promotion of the German Passive House standard or something like it. I believe there are less than ten of these houses in the US currently. There needs to be many more. I know this is Arkansas and all, but how is it forward thinking that I should be able to go into Lowe’s and buy windows that aren’t even Energy Star certified? The same goes for any appliance or other device. The worst part is that people actually still buy this stuff, windows last for 30 years or more, do you really want to replace them in five because you can’t afford all the heat pouring out of them all winter and pouring in them all summer?

Electricity and other fuels and energy sources. First of all, I’d like to say that hydrogen is not an option. It is not a fuel, it is an energy transfer medium with extremely inefficient conversion processes. It will never work in the face of efficient and advancing technologies like simple electricity. It just can’t beat electricity at anything considering costs and problems. Won’t work. We can argue about it later, but it won’t work. Electricity with distributed generation is the best option. Imagine having electricity when the grid is out, having heat during an ice storm, even if it is less than normal. Having it is better than not having it. Nanosolar is now printing solar panels like an ink jet. Whether the promises prove to be true or not is yet up for debate, but they are promising solar panels at less than a dollar per watt. As I’ve said before, I’d like to see renewable energy systems required on every new construction. Warehouse style stores have vast stretches of flat roofs, and vast parking lots in need of shade. The average Wal-Mart super center at 20 to 30 acres could produce quite a bit of electricity on a sunny day if covered by solar panels. Plus that shade will save additionally on power bills. Anyway, back to what I was talking about. The best option is for people to have solar panels on their roofs, and also for those who have opportunity, to have micro and pico hydro as well as small wind. These things not only allow people to produce their own electricity but there is this strange phenomenon where people begin to consume less to match their generating capacity, which can only be a good thing. I’d like to see micro grids in the future where an advantaged (locationally) group of neighbors sets up their own little grid with several small power sources and become their own utility. The technology is quite simple, and very scalable. There is benefit in having a grid, but in the future what will become of the huge ones we have today? Energy intensive applications like metals processing will still need large amounts of energy, which is why many of them are located next to hydroelectric dams or large powerplants already.

Food. Now that I’ve discussed being more like Europe, I’d like to discuss being more like Cuba. Before the USSR fell, Cuba was almost completely dependent on it for everything, being the Communist little brother as it were. When that era came to a close, Cuba was left mostly without an oil supply, and quite suddenly as well. Now, as a result, Havana is able to produce the vast majority of its food supply within the borders of the city because people have created community and rooftop gardens. Translated to the modern day, home food producing gardens are already a good idea, and as the price of food goes up with fuel, the prospect of growing “free” food at home will be that much more alluring. I believe the trend toward more sustainably grown food will continue, and I’d love to see Steve Heckeroth’s electric tractor idea hit the big time. http://renewables.com/Permaculture/ElectricTractor.htm One thing that is very much needed is for humans to eat far less meat, or eat only meat that they themselves raise. Something Al Gore has inconveniently ignored is that the methane and other emissions from meat production likely does more damage concerning global warming than tailpipes do since methane has around twenty times the greenhouse effect than carbon dioxide does. Additionally, most of our crop land in the US is used for growing grain for animals. It’s an extremely inefficient operation and it will come back to haunt us in the form of food and fuel prices.

One thing that’s not going to work is just doing everything the same way we are doing now. Some have already chosen the route of efficiency and reduced consumption, but for our society to be sustainable, many more need to do the same.

WiredForStereo

Future Fuels and Personal Standards.

Now in true virtue of combining blogs, the corresponding sustainable living discussions.

I know there are millions of statistics running around about all the stuff we have to do and the dangers of not, and the results, and costs.

I'm not going there today. I wanna talk about practices and philosophies and attitudes, not statistics and costs.

I was wandering through Lowe's the other day with my friend. We happened upon one of his friends (or acquaintances, not sure) while we were perusing through the CFLs and she was looking for light bulbs as well, and my friend suggested a CFL. She went on to explain that she was such a conservative that she just wanted to drive the biggest vehicle she could find, go home string up a million Christmas lights, turn the heat all the way up, and open all the doors and windows and watch her 8 foot wide plasma tv. Of course I'm exaggerating a bit, and I hope she was kidding because she really was looking at the CFLs, but it was the attitude that she had that really made me think. And thinking is what will solve the problem, not global warming, but of limited energy supplies. I've said it before, Arkansas has one wind turbine but is 27th in the nation for wind resources. We're surrounded by coal and natural gas power plants, and there's a nuke just down the highway. We do have a number of hydroelectric dams, but they are of limited elevation drop and therefore limited power. Their primary function is as sources for various water needs. The only solar panels I have seen lately are the ones that power the emergency roadside signs. The thing is, you can't burn coal or NG again, but the rain will bring us water again, and the winds will come again, and the sun will shine again.

So, how do we change things so that we can sustainably support ourselves as a culture? Some have said that we cannot support our current standard of living. That may be so. So, we change our standard of living. Standards are made to become more strict, a standard is a minimum requirement, and as time goes on, standards become more stringent. Examples: gas mileage, home insulation, safety belts, child car seats, wiring, plumbing, internet speeds, video quality (HDTV), bullet proof vests, helmets, airbags, buildings and structures, pollution restrictions, lead based paint, asbestos, fire retardants, CFCs, water quality, flammable Halloween costumes, fire suits for race car drivers, computer speeds, fuel quality, and bridge construction, need I go on? Our standard of living must not drop, because standards do not drop, our standards must be raised, but not in a way that we live more opulently, and more wastefully. Our standards must include those that are more efficient, they must include changing or altering our sources of energy, food, and leisure, and most of all, we must change our rate of consumption.

Consumption, what did Jesus think? Jesus was, more than most else, interested in how the poor were cared for. He railed against the wealthy religious leaders, said things like "It is difficult for a rich man to enter the kingdom of heaven," and picked his disciples from among the working class. There is so much I could say, but I'll let you draw your own conclusions.

So, what did I say here? (Pauses to actually read what he wrote.)

Well let me say what I meant in the above paragraph. I am not saying that you cannot be rich. I say do it at your own risk, but the wealthy are in a position to do more than many of us can, both to make their lives more efficient, but also to help the rest of us by for instance helping the car companies decide to make more efficient cars, because though I'd like to, I cannot afford to build my own car right now.

Ok, the real conclusion. Raise your standard of living. Grow your own organic food. Insulate your house so it stays really warm in the winter and really cool in the summer without using any outside power. Raise your standards, don't go the cheap (actually more expensive {costly} in the long run) way, don't do what everyone else is doing (some of you reading this will not be in Arkansas and will be in a more environmentally conscious area, and for you, do some of what everyone else is doing)

Live the way you were meant to.
WiredForStereo

*Would I say God is on my side?
I might think it, but I won't say it, hopefully I'm on God's side.

Solar Splash 2007 Fayetteville Arkansas

I was very fortunate to be able to attend a number of heats and events in this year's Solar Splash solar powered boat competition held here in Fayetteville. This year saw teams from Canada, Turkey, and of course USA.

One event I attended was the first heat of the Sprint event which was basically a 300 meter drag race. This event was very interesting, and entertaining when mishaps happened. Probably the most memorable one was when the Naval Academy's boat sank mid-run. It seemed to me that the torque of the propeller on the narrow boat was causing it to veer starboard, while the skipper attempted to steer it port by turning hard and leaning to the left. The boat started taking on water in the rear, and eventually was left floating nose up like a buoy, with the skipper floating also like a buoy. The Canadian team had a fabulous carbon fiber catamaran that broke a hydrofoil and didn't do well in the sprint, but overall, I'd say they were the most technologically advanced team with real time wireless telemetry and the slickest boat.

The other event I was able to attend was the endurance race which lasted four hours. I was able to see most of it, and it was quite interesting because the boats ran on only solar power on a course that was about 1 km in length. The highlights in that race were Cedarville, the overall winner, and the University of Arkansas, with the Turkish, Canadian and University of Northern Iowa teams making a good showing.

I must here make mention of the Turkish boat, and the team from Istanbul Technical University. Theirs has been a long process, finding funding, customs, and other problems. But they made a very good showing, doing well in the Sprint and Endurance races. They also won the presentation category due no doubt to the video they brought with them that showed everything they had done, including 3d cad drawings.

This event didn't garner much fanfare beside a few front page headlines in the local papers. Crowds were very small which is unfortunate considering how important this kind of technological utilization may become in the future. I was extremely fortunate to be able to watch this competition, and I am looking forward to seeing it next year.

Sunny Side Up.
WiredForStereo