Solar | AzSustainability.com - Part 2
Jun 11

Looks like it is really going to happen, this fall ASU will start having solar panels installed on the roofs of many of the buildings on campus. When they are done these panels will produce up to 7% of the school’s electricity. It’s really nice to see ASU taking the lead in this and I hope other Universities follow suit.

Arizona State University plans to spread solar panels across the rooftops of its sprawling Tempe, Ariz. campus, creating the largest solar array at an American university, school officials said.

ASU plans to begin installing solar panels on about 135,000 square feet of rooftop in August, about a third of that available on university buildings. They will provide 2 megawatts of electricity to the university grid - about 7 percent of the school’s energy needs.

That’s enough to power 4,600 computers and reduce ASU’s carbon emissions by 2,825 tons per year.

“We have a tremendous number of buildings that have flat roofs. It’s an ideal place to put these things,” Jonathan Fink, director of ASU’s Global Institute of Sustainability, said.

Read the full story at Forbes.com

Apr 24

Maybe we won’t have to wait until 2010 to get a car that doesn’t run on gasoline. The Th!nk City electric car is going into production in the US and should be popping out cars soon. The perfect combo might be solar panels for your house and this electric car for your commute.

This could be it: the Th!nk City electric car, a four-seater with 110 mile range and top speed of 65 mph, priced under $25,000, made from 95% recyclable materials, and available in the U.S. in 2009.

The Th!nk City electric car is the product of Norwegian firm Th!nk Global, an auto manufacturer backed by Silicon Valley funding who has plans to assemble the cars in Southern California. In contrast to Tesla’s limited release of 300 cars per year, the Th!nk City is designed for mass production to the tune of 30-50,000 units within a few years. Th!nk already produces about 10,000 of these cars in Europe annually. [Gas 2.0]

Th!nk’s Website.

Apr 19

If you’ve ever looked into buying solar panels or photovoltaics for your house you know how much it cost. It can be anywhere from twenty to thirty thousand dollars for a typical home. What if you could instead lease a solar system for little or no money down? That’s what some companies are doing now and it seems to be catching on. Two I’ve discovered lately that do this are Citizenre and SolarCity. Basically it’s like renting a car, but with much longer leases, you pay very little down to get the system, and you pay them a monthly rent. You are protected from utility price hikes because the cost of the solar doesn’t change and you save money over what you’d be paying without solar panels. You also don’t have to worry about maintenance if anything goes wrong, these companies cover that for you.

One thing I noticed is that neither company seems to mention the generous incentives homeowners get if they buy their own system. According to American Solar Electric’s site a 22,478 dollar system only costs 9,878 dollars after APS/SRP rebates, and Federal and State tax incentives. Depending on the financing you can get this might be the better solution. Of course if anything goes wrong with the system or a much better cheaper form of energy comes out you are stuck with those solar panels and out a lot of money. If like me you live in a location that isn’t served by SRP or APS leasing sounds like it might be a great option to save money and the environment.

Apr 3

Interesting article over at Fox News about how the U.S. Armed forces are moving to alternative clean energies. Thanks to RKTowner for sending the link in for this.

Nellis Air Force Base in Nevada is powered by the largest solar-power array in the Americas — saving the government an estimated $1 million a year.

Dyess, Minot, and Fairchild Air Force bases purchase 100 percent of their electricity from renewable sources of energy.

Airmen and their families have been using biomass fuel at Hill Air Force Base in Utah since 2004, thanks to a 1.3 megawatt landfill gas project. In other words, they are creating gas from the air base’s trash. Complete story at foxnews.com.

Info on Nellis’ solar system.

Story on Hill Air Force Base’s biomass power generation.

Apr 1

BioTour The crew from BioTour made a stop on ASU’s Tempe campus today to promote sustainable living, biofuels, and solar energy. They welcomed everyone to take a tour of their bus and eagerly answered everyone’s questions. As I walked up to the bus I was immediately welcomed by BioTour co-director Ethan Burke and asked if I’d like a tour.

Their bus is powered by waste veggie oil (wvo) which they collect from restaurants in whatever town they happen to be in that day. Ethan said they usually stick to Chinese restaurants because they have the highest quality oil (i.e. it is changed frequently as opposed to used and reused and used again at a fast food chain).WVO filters

The first thing Ethan showed me is the side of the bus where they suck the oil from grease traps and filter it into storage tanks. He said they are working on better ways to filter the oil because the filters clog a little too frequently. One solution they are looking into is using a centrifuge to achieve better filtration.

Next he showed me the actual tanks they haveWVO tanks mounted under the bus. These tanks are heated to thin out the oil making it closer to the viscosity of diesel fuel which is more more fluid than veggie oil when at room temperature. Before they can even run off of wvo it has to reach at least 160 degrees before it can be injected in the engine. They have to start the bus on biodiesel and then switch over to the wvo once it’s hot enough. The switch over is very seamless and can be done while moving.

Bus Engine I asked if they ever have trouble finding enough restaurants to get oil from and he said every once in a while they do but that it’s usually not a problem. They’ll use biodiesel or even regular diesel to get them to their next wvo pickup.

So after seeing where they suck up the oil and store it Ethan took me up to the front of the bus where the engine cover is open, exposing the modificationsHeated Fuel Filters they’ve made. Unlike biodiesel, which doesn’t require any engine modifications, to run off of wvo a few things have to be done. Since they have to warm up the engine on biodiesel before switching over to wvo a system must be installed to do the actual switching. Also heated tanks need to be installed and heated fuel filters. In the picture on the right you can see they use the heat from the engine’s coolant system to heat the fuel filters. These filter out anything in the oil larger then 20 microns. I asked how long they can go before these clog up and Ethan said they can usually go just over 2,000 miles before they have to change them. That’s one reason they are looking at better pre-filtering so that they can get more life out of these filters. So basically that’s it, after leaving these filters the clean wvo is injected into theEthan Burke showing biodiesel with glycerin seperated out engine and off they go.

Quite a few people were asking if the wvo has caused any engine trouble, and being that this is an old bus (1989) Ethan explained they’ve had a few breakdowns, but these weren’t related to the wvo system. I believe he said the steering went out once, and a few other things, but the engine is still running strong.

That was about it for the nuts and bolts of how things worked, Ethan was surrounded by curious onlookers asking about how it all worked, so I headed inside the bus to take a look around. In the bus I ran into Alan Palm who is the other co-director. He was telling stories of their adventures to a few people that were already inside. I caught part of a story about when they broke down and someone that worked for an oil company towed their bus to his house and let them stay for a week while they fixed it.Alan Palm

So this is where they live all year long, touring the country, visiting schools, colleges, and community gatherings. They are continually giving presentations and tours on sustainability on these visits. They drive around 40,000 miles a year and have so far visited 42 states. The two other crew members who I didn’t get to talk to are Fernando Austin and Jenny Sherman. Check out their website where you can get tons more information about their mission, what they do, and even a blog.

BioTour is a journey that aims to enliven the Sustainability Movement while exploring the depths of America—the people, land, and cultures. BioTour addresses the vital issues of climate change, environmental degradation, and peak oil while presenting pathways toward sustainability in renewable energy, active democracy, and understanding the interconnectedness of all living things. www.biotour.com

Welcome to BioTourLinkageFront of BusSide of BusBack of Bus Art on Ceiling Art on ceilingExitDriverEco SudsBioTourSouth Dakota Sunset

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