Solar Car World Rankings Revisited


Nuon at WSC 17 (photo: Anthony Dekker)

Below is my personal world ranking of the top 21 Challenger-class solar car teams (revised with new data from an earlier list). It was produced entirely algorithmically by using linear regression on historical data to build mappings between WSC rankings and those of other races, and then applying those mappings to the results of four recent events (WSC 17, ASC 18, ESC 18, and Sasol 18). For example, this is the mapping between Sasol placings and WSC placings. It was used to map all Sasol 18 teams to expected WSC placings:

There is as yet insufficient data to rate Cruiser-class teams (apart from the actual WSC 17 results: 1 Eindhoven, 2 Bochum, 3 Arrow). But here is the table of Challengers:

Rank Previous Team WSC17 ASC18 ESC18 Sasol18
1 1 NL  Nuon Solar Team 1 1
2 ↑ 3 NL  Solar Team Twente 5 1
3 ↓ 2 US  University of Michigan 2 2
4 4 BE  Punch Powertrain Solar Team 3 6
5 5 JP  Tokai University 4 2
6 ↑ DE  Sonnenwagen Aachen P 3
7 ↓ 6 AU  Western Sydney Solar Team 6 1
8 ↑ 18 CH  Solar Energy Racers 3
9 ↓ 8 HU  Kecskemét College GAMF (Megalux) 4
10 ↓ 7 JP  Kogakuin University 7
11 ↓ 9 SE  JU Solar Team 8
12 ↓ 10 US  Stanford Solar Car Project 9
13 ↑ ZA  Tshwane University of Technology (TUT) 4
14 ↓ 11 CL  Antakari Solar Team 10
15 ↓ 13 CA  University of Toronto (Blue Sky) 11
16 ↓ 14 CA  ETS Quebec (Eclipse) 3
17 ↓ 15 JP  Nagoya Institute of Technology 12
18 ↓ 12 ZA  North West University P 5
19 ↑ FR  Eco Solar Breizh 7
20 ↓ 17 CA  Poly Montreal (Esteban) 4
21 ↓ 19 US  Massachusetts Institute of Technology 5

Note that Cruiser teams like Eindhoven, Bochum, and Arrow are excluded from the list. The letter P marks cars that participated in WSC 17, but did not finish, and thus were not ranked at the time. It must also be said that Western Sydney, Eclipse, Esteban, and MIT should probably be ranked higher than they are here – the algorithm is not taking into account the dramatic improvement in ASC teams this year. However, good ESC and Sasol performance has bumped up Aachen, SER, Eco Solar Breizh, and South Africa’s new champion team, TUT.


Michigan at WSC 17 (photo: Anthony Dekker)


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Solar Car World Rankings


Nuon at WSC 17 (photo: Anthony Dekker)

Here is my personal world ranking of the top twenty Challenger-class solar cars. It was produced entirely algorithmically by using linear regression on historical data to build mappings between WSC rankings and those of other races, and then applying those mappings to the results of four recent events (SASOL 16, ESC 16, WSC 17, and ASC 18). There is as yet insufficient data to rate Cruiser-class teams (apart from the actual WSC 17 results: 1 Eindhoven, 2 Bochum, 3 Arrow).

Rank Team SASOL16 ESC16 WSC17 ASC18
1 NL  Nuon Solar Team 1 1
2 US  University of Michigan 2 2
3 NL  Solar Team Twente 1 5
4 BE  Punch Powertrain Solar Team 2 3
5 JP  Tokai University 2 4
6 AU  Western Sydney Solar Team 6 1
7 JP  Kogakuin University 7
8 HU  Kecskemét College GAMF (Megalux) 3
9 SE  JU Solar Team 8
10 US  Stanford Solar Car Project 9
11 CL  Antakari Solar Team 10
12 ZA  North West University 4 P
13 CA  University of Toronto (Blue Sky) 11
14 CA  ETS Quebec (Eclipse) 3
15 JP  Nagoya Institute of Technology 12
16 TR  Istanbul Technical University (ITU) 7 P
17 CA  Poly Montreal (Esteban) 4
18 CH  Solar Energy Racers 8
19 US  Massachusetts Institute of Technology 5
20 TR  Dokuz Eylül University (Solaris) 9

Note that, for ESC 16, the 3rd, 4th, and 5th place cars were all Bochum Cruisers and are therefore not listed here, while 6th was Onda Solare, which is now also a Cruiser team. The letter P marks cars that participated in WSC 17, but did not finish, and thus were not ranked. It must also be said that Eclipse, Esteban, and MIT should probably be ranked higher than they are here – the algorithm is not taking into account the dramatic improvement in ASC teams this year.


Michigan at WSC 17 (photo: Anthony Dekker)


Solar Car Racing Status Check #3

In solar car racing news, 29 teams are registered for the American Solar Challenge (ASC) in July. Scrutineering for this race begins on July 6, track racing on July 10, and the road race runs from July 14 to July 22. I am maintaining a detailed information page and teams list for this race. Five teams are attending with cars that raced at WSC 2017 (including one Australian team), although these cars will require adjustment to satisfy ASC rules. Seven other teams had existing cars (including one Russian team). The remaining teams have been building new cars.


ETS’s beautiful new car, Éclipse X, was unveiled on 16 May (picture credit)

Recently unveiled cars for the ASC include Missouri S&T (18 April), Poly Montreal / Esteban (23 April), Georgia Tech (24 April), and ETS Quebec / Eclipse (16 May). A couple of teams have (very sadly) dropped out, while many other teams are frantically working on their cars. Iowa State University (PrISUm) and the University of Minnesota are holding a practice mini-race on June 3 (with cars on display at the Science Museum of Minnesota the day before). Full details on all teams and latest news here.


Many ASC teams are frantically working on their cars – AppState is shown, and they plan to reveal their car on June 22 (picture credit)

The Albi Eco Race was held on May 25 and 26. Bochum won with their SolarWorld GT, while Dokuz Eylül University / Solaris came second, and Polytech Clermont-Ferrand / Bélénos third. Details here.


Albi Eco Race cars (picture credit)

Fourteen teams have registered so far for the 24 hour iLumen European Solar Challenge (iESC) at Circuit Zolder in Belgium (September 19 to 23), and Twente will be defending their title there. World champions Nuon might also attend (with an old car). I am maintaining an information page and teams list for this race as well. See also the official iESC social media at  


Circuit Zolder seen from above (imagery: Landsat, solar car photo: Bochum, chart: Scientific Gems). Sunset/sunrise and the phase of the moon are correct for the date

Preparations are also continuing for the SASOL Solar Challenge in South Africa (September 22 to 30). Defending champions Nuon and Japanese team Tokai will attend this event, along with local teams, such as North-West University, Tshwane University of Technology, the University of Johannesburg, Vaal University of Technology, Central University of Technology, and the University of Cape Town.


Albi Eco Race 2018


Timetable (click to zoom)

The Albi Eco Race at Circuit d’Albi in France this weekend had five solar car teams in addition to their other race classes (see also the race start). The weather was fine. You can check out the copious FB photographs from Eco Solar Breizh or the official social media (  and  ). Final results are shown below.


Albi Eco Race cars (image credit)

FR  Eco Solar Breizh 

This team came 14th at Abu Dhabi 2015. It is a French (or rather, Breton) team, started in 2008. They also raced at ESC in 2014, and came third in the 2017 Albi Eco Race. Their car is called Heol, and is a symmetric design. They recently got new solar panels. Final result: 5th.

FR  Bélénos 

This team is from Polytech Clermont-Ferrand. They raced at WSC 2009. Final result: 3rd.

FR  Lycée Jehan de Beauce (Project 28)

This team, from Lycée Jehan de Beauce in Chartres, fielded two cars: SolCar28 (illustrated) and WattSun28. Final result: 4th (WattSun28) and 6th (SolCar28).

DE  Bochum University of Applied Sciences 

This team came 2nd in the WSC 2013 Cruiser class. They came 3rd in the WSC 2015 Cruiser class. They came 2nd in the WSC 2017 Cruiser class. They came second in the 2017 Albi Eco Race. They drove to Circuit d’Albi with their 2011 car, SolarWorld GT. They also took their incredibly beautiful 2015 car, the ThyssenKrupp SunRiser. Both are 2-seat Cruisers. Final result: 1st (SolarWorld GT, 103 laps or 367 km) and 7th (SunRiser, 100 laps but late-race battery problems).

TR  Dokuz Eylül University / Solaris 

This team came 25th at WSC 2015. They came 9th at ESC 2016. Their car is called Destech Solaris, and is a symmetric design. They arrived at Albi very early Friday morning, after a long trip. Final result: 2nd.

This page last updated 15:52 on 27 May 2018 AEST


Solar Car Racing Status Check #2


Tokai, who came 4th at WSC 2017, will race against Nuon at SASOL this year (photo: Anthony Dekker)

In further solar car racing news, preparations are continuing for the SASOL Solar Challenge in South Africa (September 22 to 30). Defending champions Nuon and Japanese team Tokai will attend this event, along with local teams, such as North-West University.


The Belgian car, Punch 2, which came 3rd at WSC 2017, will be challenging Twente at iESC this year (photo: Anthony Dekker)

Thirteen teams have registered so far for the 24 hour iLumen European Solar Challenge (iESC) in Belgium (September 19 to 23), and Twente will be defending their title there. I am maintaining an information page and teams list for this race. See also the official iESC social media at  


Western Sydney’s car, Unlimited 2.0, which came 6th at WSC 2017, will race at ASC this year (photo: Anthony Dekker)

Thirty-two teams have registered for the American Solar Challenge (ASC) in July. Scrutineering for this race begins on July 6, track racing on July 10, and the road race runs from July 14 to July 22. I am maintaining a detailed information page and teams list for this race too.


Missouri’s new car, Independence, was unveiled on 18 April (picture credit)

Five teams are attending with cars that raced at WSC 2017 (including one Australian team), although these cars will require adjustment to satisfy ASC rules. Seven other teams had existing cars (including one Russian team). The remaining teams have been building new cars.


Poly Montreal’s new car, Esteban 9, was unveiled on 23 April (picture credit)

Recently unveiled cars for the ASC include Missouri S&T (18 April), Poly Montreal / Esteban (23 April), and Georgia Tech (24 April). There are 17 cars still to be unveiled.


Georgia Tech’s new car, SR-2, was unveiled on 24 April (picture credit)


Solar Car Racing Status Check

In solar car racing news, preparations are beginning for the SASOL Solar Challenge in South Africa (September 22 to 30). It seems that both Nuon and Tokai will attend this event, along with local teams.


Nuon at WSC 2017 (photo: Anthony Dekker)

Thirteen teams have registered so far for the 24 hour iLumen European Solar Challenge in Belgium (September 19 to 23), and Twente will be defending their title there. I am maintaining an information page and teams list for this race. See also the official iESC social media at  


Twente at WSC 2017 (photo: Anthony Dekker)

The American Solar Challenge is a lot closer than those two races, with scrutineering beginning on July 6, track racing on July 10, and the road race running from July 14 to July 22. I am maintaining a detailed information page and teams list for this race. At last count, 34 teams were registered, with Anderson, UCSD, Principia, UC Irvine, Phoenix, and UT Austin having, sadly, dropped out.

Six teams are attending with cars that raced at WSC 2017, although these cars will require adjustment to satisfy ASC rules (Michigan, Western Sydney, Principia, and Illini, plus the Cruisers PrISUm and Minnesota). Six other teams are attending with cars that previously raced at ASC.


PrISUm at WSC 2017 (photo: Anthony Dekker)

Twenty-two other teams are frantically building cars for ASC. Car unveils that have been announced include team 42 (Missouri) on 18 April, team 55 (Esteban) on 23 April, team 101 (Eclipse) in mid May, team 828 (AppState) in mid June, and team 65 (Calgary) on 16 June.


Missouri’s unfinished car (picture credit)

See my detailed information page and teams list for this race for more information and for social media links. I will continue to update that page as news comes in.


Upcoming solar car races for 2018


photo: Anthony Dekker

I am aware of four major solar car races this year (not including the Japanese races):


photo: SASOL Solar Challenge