Archive for the 'solar' Category

A New Home for the Solar Decathlon 2011

The new site for the solar decathlon was announced today.  You can read the original press release here,  http://www.solardecathlon.gov/blog/archives/731.  It was previously rumored to be moving way off the national mall south of the district and I for one, am glad that didn’t happen.  But here are a few questions that the new site bring to mind.

Firstly, the new site, West Potomac Park, is on the splot of land between the FDR Memorial/Tidal basin and the Potomac River. There are ball fields there now that get a little bit of use, and usually a great place to snag a parking spot and walk into the monuments (Lincoln, Jefferson, and FDR).  I am familiar with this part of the tourist areas as it is easy access if you know the way.  It is a beautiful area with the river to one side and the tidal basin (through the cherry trees) to the other.  There is little out there in the way of services: restrooms, food vendors, benches, etc….

Here is a sunset picture from the Jefferson end of the field that I shot last year.  Not much out there, a few trash cans and baseball backstops.  Which brings me to my first concern, there is not much out there.  Tour buses drop off loads of kids and tourists to view the Jefferson Monument just behind me (and over the bridge) in this shot.  But no easy Metro access, closest metro is about 1 1/4 mile to the Smithsonian station. Logistics will be harder to work through.

The biggest concern I have looking at the map is  http://www.solardecathlon.gov/pdfs/2011_map.pdf provided in the press release mentioned above.  They have taken the sites and rotated them 45%.  I would think that this deep into the competition, changing the orientation would be a big issue.  I would love to hear from someone involved with the teams on this as I hope that I am wrong.  Perhaps it will separate the good designs from the really great ones that are flexible enough to be reoriented.

I wish the teams good luck and hope to see great things at this year’s event.

Lights on, lights off

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Two events for tomorrow of significant sustainable noteworthiness…

First, the anticipated landing of the the shuttle on their return trip  from a successful mission. The final solar array was installed for full power at the international space station. The expected landing will be at 1:30pm on Saturday.

Then later tomorrow night (8:30 – 9:30), earth hour is happening around the globe. Be a part of a global awareness to reduce unnecessary lights and turn off any nonessential lighting for one hour. Follow as the world participates in earthhour.  Be sure to check out the great videos and lists for creative things to do for an hour with no lights.

Solar Shuttle

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The countdown is underway for Discovery’s STS-119 mission.  Matt and I missed being at the launch by a few weeks, while we were in Florida.  There were delays with the control valves that have been fixed.  The new launch date is set for Wednesday March 11th at 9:20 pm,  Sunday, March 15th  at 7:43 p.m. EDT.  It will be one of the very cool night sunset launches.

The STS-119 astronauts pose for a formal crew portrait. In the front row (right) are Lee Archambault, commander and Tony Antonelli, pilot. In the back (left) are Joseph Acaba, John Phillips, Steve Swanson, Richard Arnold and Japan Aerospace Exploration Agency astronaut Koichi Wakata, all mission specialists.  There will also be one “passenger” exchange, Koichi Wakata will be giving his seat to Sandra Magnus for the ride home.  He stays behind to return on another mission.  She has been on the space station for 4 months and it is her time to come home.

STS119-S-001 [Converted]On the sustainability front this is an exciting mission.  They will be carrying and installing the last of the large trusses and solar arrays that will power the space station.  Here are some of the facts from NASA’s website

Space shuttle Discovery’s STS-119 crew is set to fly the S6 truss segment and install the final set of power-generating solar arrays to the International Space Station.

The S6 truss, with its set of large U.S. solar arrays, will complete the backbone of the station and provide one-fourth of the total power needed to support a crew of six.

The two solar array wings each have 115-foot-long arrays, for a total wing span of 240 feet. They will generate 66 kilowatts of electricity — enough to provide about 30 2,800-square-foot homes with power.

The mission patch references the mission by highlighting the S6 Truss with solar array and the American flag coming from the tail of the spacecraft is signifying U.S.’s support of the International Space Station as well as the support of the American people.

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I wonder if the solar panels in space gather more energy from the sun or are made differently than those on the planet?  There proximity to the sun and the lack of ozone hampering its power would lead me to think that they are.  It is exciting to think of our future world supported completely on the power of the sun.