That vehicle in the picture is one of the participants in the Panasonic World Solar Challenge in Australia, which started last week. It was fun to see all the 41 solar-powered cars with unique different designs, in the event. They raced through 1,870 miles across the country’s rugged Northern Territory, trying to win the 20th running of the event.
According to Panasonic’s race Web site, the average speed of the solar cars were from 42 MPH in 1987 to a top speed of 65 MPH in the most recent race.
The past 20 years turned the challenge into a test arena for all sorts of vehicle design from aerodynamics to tires. The race tested the vehicles’ most efficient solar cell arrays, new types of car battery systems, including the latest Lithium ion packs, along with testing the efficiency of the mechanisms for recharging batteries.
The cars in the race were divided into three classes: two classes for solar cars (the Challenge Class and Adventure Class) and one for the vehicles demonstrating fuel-efficient technologies like low-car bon fuels (the Greenfleet Technology Class), which also run on Ethanol and canola oil.
The US teams from the University of Michigan and Oregon State University will race under the Challenge Class. On the other hand, Stanford University and the Houston Solar Car Race Team will be under the Adventure Class.
The Challenge had three main restrictions: vehicle dimensions, daily traveling times (8am to 5pm) and that vehicle propulsion may be derived only from direct global solar radiation.
There has been a dynamic Route map system that showed the locations of teams as they make the trek.
Among the large car manufactures who participated were Ford, Honda and Toyota.
Here are some other cool facts regarding the Panasonic World Solar Challenge, featured in networkworld.com:
- The last Challenge the winning vehicle ‘Nuna III’ recorded a maximum speed of 65 MPH, which is a full 10 MPH faster than the newly introduced Northern Territory speed limit.
- For overseas teams, often the biggest challenge can be getting their vehicle to Australia. In a rather unique move, a team once attempted to send their vehicle via Fed-Ex to Sydney (as they didn’t allow the time it would take to get to Darwin - the race’s start city).
- The team from the Hachinche Institute of Technology in Japan says one of the best aspects of their car’s design is that it has been tested and proven to be able to withstand lightning
- The New Zealand Team Bios Fuel Corp claim to have found a way of running a conventional diesel engine in a blend of 40% water and 60% waste mineral oil. In the spirit of ‘never say never, the PWSC organisers are giving the team a forum to prove whether it works or not.
- The smallest solar car participating this year is from France’s Helios Team - at a size of 4m x 1.5m.
- For the first time ever in the event’s history, the driver’s seating in the solar cars is being regulated for its level of tilt - this year seats are more ‘upright’ than ever before and must not be at a slant any greater than 27 degrees.
- Another first-time rule this year - unaided driver access. This year drivers must be able to get in and out of their solar cars without assistance (in previous years most vehicles were designed such that drivers needed a lot of help getting in and out).
- Each team has four drivers and must change drivers regularly to combat driver fatigue.

The organizers are planning to bring solar car racing back to North America by next year. They have decided that the 2008 North American Solar Challenge will be covering 2,400 miles as its heads north from Dallas, Texas to its end point in Calgary, Alberta.They even already set July 13th as start of the race in Dallas and July 21st as the end in Calgary. Currently, there are 20 university teams enlisted which will be participating in the race. It includes 15 teams from the United States and 5 teams from Canada. Sounds like it would be more thrilling.
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