Competition: How far would you have to ride to generate enough energy to power an electric oven?


Uniqlo have launched their “convert your energy” campaign. Using kinetic energy pads, customers can generate power through movement. The promotion is related to the new HEATTECH gear that is now being sold in stores and online. Needless to say, the promotion is perfectly timed for the coming winter chills! (And will be particularly good for people like me who always seem to feel the cold and spend most the day asking others: Do you feel cold?).

As part of the promotion here on London Cyclist, Uniqlo have calculated how many kilometres someone would have to cycle to generate enough energy to power an electric oven for an hour.

To enter you need to answer the below question in the comments:

Q: How many km’s would you have to ride to generate enough energy to
power an electric oven for an hour?
a) 15km
b) 25km
c) 35km

The winner will have £100 to spend on any HEATTECH gear they want, from the Uniqlo store (there are both men’s HEATTECH and women’s HEATTECH choices). As we’re on the way to Christmas, this would be a good time to grab some of these tops as gifts.

Out of the correct answers, we’ll pick one winner at random using a random number generator.

Promotions will also be taking place in selected Uniqlo stores starting from October 25th until November 4th. This will be done using an innovative floor surface that will convert footsteps in to energy.

There will also be “Heat Spots” popping up around London in Garden, Soho Square, Westfield London, Westfield Stratford, and Bluewater where people can convert their social energy, to redeem a piece of HEATTECH.

The total converted energy from the promotion will be showcased on the in store screens.

HEATTECH is a new innovative brand of thermal clothing that is designed to lock in heat and keep you warm throughout the day. It’s also designed to be incredibly comfortable to wear to offer a soft and second skin like feeling to the wearer.

The heat spots will be at the London locations on the following days:
Covent Garden – Thursday 25 October –Sunday 28 October
Soho Square – Thursday 25 October –Sunday 28 October
Westfield London – Thursday 25 October –Sunday 28 October
Westfield Stratford – Monday 29 October –Saturday 4 November
Bluewater – Monday 29 October –Saturday 4 November

Our usual competition rules apply. The winner will be announced on this post.

Please note this is a paid promotion by Uniqlo.

Join 10,221 fellow cyclists who are subscribed to the London Cyclist newsletter

Sign up for our free newsletter to get...

  • Advice on the best cycling gear
  • A Friday roundup of all the latest London cycling news
  • Exclusive content not available on the blog

Subscribe today, and get exclusive access forever! (It's free)

*No spam, ever!

As seen on The Guardian, BBC and The Independent.

, ,

122 Responses to Competition: How far would you have to ride to generate enough energy to power an electric oven?

  1. tyviano 27/10/2012 at 9:36 am #

    ovens use loads and cycling doesn’t!
    Answer is C I reckon

  2. Paul 27/10/2012 at 9:46 am #


    • New 04/01/2013 at 3:43 pm #

      Yea sorry, the auto responder thing is a deal breeakr. Instead of complaining about no-reply, complain about that piece of shit outlook and people setting up vacation/out of office auto replies!As long as there’s a link to a support email address or whatever in the email somewhere, it’s all good. It’s not even any more clicks!

  3. Geoff Cooper 27/10/2012 at 10:50 am #


  4. Maria 27/10/2012 at 12:30 pm #

    It would have to be C.

  5. Dave 27/10/2012 at 2:26 pm #


  6. Alice 28/10/2012 at 4:32 pm #


  7. Chris C 28/10/2012 at 10:43 pm #

    A, B and C
    This is a stupid question and the writer should be shot.
    * What kind of oven, industrial/residential/autoclave?
    * What are the environmental conditions? Summer/Winter/…?
    * Is the oven at steady state or is it heating up? Taking an oven from 20 degrees to 350 degrees takes a whole lot more power than maintaining one at 350 degrees…!
    * What temperature are we cooking at? I can cook at 100 degrees for some food, and any of the answers would make it burn!

    Can you re(de)fine the question and drop me an email when I either win or the question is clear!

  8. Greek Geeza 29/10/2012 at 10:53 am #


    Gotta agree with the comments that it depends on the wattage of the oven, and the conditions the cyclist is in.

  9. Dominic 29/10/2012 at 1:20 pm #

    I met these people in Soho Square where they’d brought along their ‘kinetic energy pads’.

    The pads are inputs that control a piece of software which displays a red bar slowly rising on a large screen… They don’t generate energy, the unit itself consisted of nothing but these pads and a large screen powered by a battery. After stepping on the pads to get my free t-shirt, one of the promoters got me to ‘generate’ electricity on an iPad she was carrying.

    As I was rubbing my finger across the glass front I looked her square in the eyes and asked ”is this generating electricity?”

    She looked straight back at me, and said, ”Yes, rubbing the iPad generates electricity”.

  10. Tony 29/10/2012 at 7:46 pm #

    It has to be C if the oven is actually going to cook something.

  11. David 31/10/2012 at 12:59 pm #

    Gotta b c, please!

  12. Rich 01/11/2012 at 1:09 pm #


  13. CP 01/11/2012 at 1:09 pm #


  14. Stuart Bromley 01/11/2012 at 9:50 pm #


  15. Beth 02/11/2012 at 6:47 am #

    answer: c

  16. krs 03/11/2012 at 7:21 pm #

    Answer is C

    fingers crossed.


  17. Joe 13/11/2012 at 2:21 pm #

    As a pedantic scientist it’s an unanswerable question since there are too many unknown variables (type, temperature and size of oven, speed of cyclist, type of bike etc). But I’m quite happy to indulge in some guerrilla thermodynamics. An electric oven probably uses about 1kW so that 1kWh of energy for an hour. Sedate cycling at say 15 kmph probably requires about 100W so that 10 hours cycling to produce 1kWh, so that’s 150 km which is way off the possible answers I’d get your friends at Uniqlo to have another look at their calculations and buy a GCSE Physics Revision Guide. But I’ll go for C on the basis that its a very fast and very fit cyclist and a very small efficient oven.

Leave a Reply