After I have developed the California Fitness Power by You concept, I have received many demands from all over the world from customers interested to purchase exercisers that can generate power. After having verified the sustainability and acquired the manufacturing capacity, I have decided to release a complete line of exercisers. These equipments are marketed by MotorGym Co Ltd (a subsidiary of Motorwave co Ltd) and can be purchased through our online store or through our distributors. We can take orders now for delivery around April/May/June 2009. Dealers and distributors are welcome to contact us.
   
  Technical aspect: Our products have the unique features of being Cardio machines which can generate power and can be used in many different possibilities. The power produced can be used immediately and directly from the electric generator as 6 to 50 VDC depending on appliances specs or as 12VDC stabilized or as 230VAC or 110VAC (depending on countries). The power can be stored in the inner battery or any additional battery with a simple connecting cable. An overcharge battery level buzzer will signal the overcharging, so the user can take action. By exercising one hour a day, you can generate nearly 3 hours of lighting for a 15 W compact saving light.
Lucien Gambarota
   
Products/Catalogue:Cardio Cross Trainer
item N0 CCT100 Cardio Crosstrainer 100 W  

Steel frame /adjustable position/Cardio electronic regulator-pulse-time-speed-distance-charging current-generates between 50 and 100 W depending on the strength applied. Can power 12VDC Appliance and 230VAC or 110VAC appliances through a 150W inverter. (just plug and use). 12V 3.2amph sealed acid lead battery.

Weight:30 kgs Height:1.5m width :0.5 m Length:1.5m
Video Demonstrations requires Windows Media player 5MB average size per clip
General view Advert Open view display dual use
 
Requires Realplayer average 0.5Mb per clip
General view Advert Open view display dual use
 
 
Products/Catalogue : Cardio Bike
item N0 CB30 Cardio Bike 30 W  

Steel frame /adjustable position/Cardio electronic regulator-pulse-time-speed-distance-charging current-generates between 15 and 30 W depending on the strength applied. Can power 12VDC Appliance and 230VAC or 110VAC appliances through a 150W inverter. (just plug and use). 12V 3.2amph sealed acid lead battery.

Weight:15 kgs Height:1.5m width :0.5 m Length:1m
Video Demonstrations
Power by U Demo 2 Exposed Display Dual use
 
 
Power by U Demo 2 Exposed Display Dual use
 
 
   
 
California Fitness " POWER BY YOU " concept .May 2007
 

Basic Principle of "Power by you"

All modern equipment in gyms are equipped with an internal generator to power the control board that people watch and adjust when training. The different resistance levels are controlled by electronic regulators controlling the value of a resistor.

The energy spent by the machine user is simply converted into heat (P=RI*2). The idea is that instead of converting this energy into heat, we collect this energy to charge a rechargeable battery.

The energy collected can then be used to power the lighting system of the gym. Technically, there are no major obstacles.

The generator delivers a voltage between 15 to 70 volts depending on the rotation speed of the equipment.

By connecting it directly to a 24 volt battery (through an AC/DC converter), the voltage drops to 25 volts regardless of the generator output. Only the current changes. A user will produce from 20 to 100 watts depending on their physical capacity.

(a small person = 20 watts and a large, strong person = 100 watts).

We then have between 0.8 to 4 amperes produced. By collecting several machines to a unique battery, the energies are combined and added together, making a contribution to the electricity needs of the facility. Once the battery is charged (24 V 150 Amp/h), we use a DC/AC (24 volts DC / 230 volts AC 1.2 kW) inverter to power fluorescent tubes in parallel.

We have equipped 5 + 5 + 8 machines in Lan Kwai Fong California Fitness on the nights of Nov 3rd and Nov 7th, 2006, following a meeting in May 2006 with the California Fitness management. The machines selected for the first test are all stationary bikes (5).

Four machines are used to recharge a battery, and one has been set with a direct connection to a set of 3 light bulbs of 20 watts, 45 watts, and 100 watts.

The machine connected directly to light bulbs allows a direct visualization of transformation of energy produced. After testing with gym users, we concluded that the resistance produced by charging the battery was too high for some users and we decided to add a regulation system to ease the resistance.

Since we can not change the voltage and current produced, the regulator will control the connection time to the battery.

In December, we connected 5 elliptical machines and 8 steppers. We found that the elliptical machines are the most suitable for electricity production. The system uses the full body weight of the user and due to the high torque generated the output power and the output voltage. A strong user can quite easily produce 80 to 100 watts.

The steppers are different because in the design of the machine, the energy is converted into mechanical energy (through a powerful spring ). The generator delivers low voltage output in the range of 10 to 12 volts with a low current. To become efficient, the steppers have to be structurally modified.

Energy saving

We have calculated the different saving levels.

When the exercisers convert energy into heat, it takes the same amount of energy to offset the heat increase by using an air conditioner.

It can be interesting to produce heat in cold countries, but it is inconvenient in hot countries. Since machines are connected to a central battery, we can monitor the machines being used and we have connected the light above to a sensor. The ceiling lights will turn on only when there is a user exercising. In that way, when there is no user the lights are off.

Out of the 16 hours of gym opening hours, the machines are being used in average 6 to 8 hours a day. We therefore save approx 50% of the lighting cost and we save the other 50% by producing the electricity needed.

When we generate with one machine 70 watt h we save in fact 200 watt h .

The ratio energy saved / energy generated is approximately 3

 

Facts  

An exerciser being used for one hour by a regular customer will generate approx 50 wh of energy and save 150 wh.

To produce the same energy, a power plant will release 75grs of CO2 into the atmosphere .

An exerciser being used for 10 hours a day and 365 days will save 547 kWh.

To produce the same energy, a power plant will release 273 kg of CO2 into the atmosphere .

If all the California Fitness gyms exercisers in the world are being used, it will generate 21 900 MWh a year .

To produce the same energy, a power plant will release 11 000 tons of CO2 .

Economics

it will take approx 3 years to pay back the installation in $$ terms with actual machines .

if we exclude the lighting installation cost and if machines are modified at the manufacturer level, then the payback time can be of less than a year.

 

 
 
Video and Pictures      

SCMP Video podcast

click on SCMP logo

   
   

 

Explanation Video

click on Lucien Gambarota picture

     
Rob devereux of California Fitness
 
 
 
 
 
 
 
 
Press and Media
   
South China Morning Post Dec 2006 South China Morning Post
Wall Street Journal Wall Street Journal Chinese version
Wall Street Journal online
The Sun News
Ming Pao Daily News Ta Kung Pao
Hong Kong Economic Times
page1 page2 page3 page4
California Fitness press release Feb 2007
California Fitness Web Site : www.Californiafitness.com
 
 
 
 
 
 
 
 
 
 
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