The Transportation Solution of the

Future

Kahului’s Transportation

Future

Community:Community: Kahului KahuluiTransportation:Transportation: Cars CarsSolution:Solution: SPA System—Solar SPA System—Solar Powered Automobiles Powered Automobiles (Solar Powered Golf Carts) (Solar Powered Golf Carts)

to replace all fossil fuelto replace all fossil fueldependant cars dependant cars

Charging stations for the SPA systemCharging stations for the SPA systemWill Have:Will Have:-Photovoltaic Cells on roof-Photovoltaic Cells on roof-Vertical wind turbines-Vertical wind turbines

CommunityCommunity

KahuluiIt is our home; our ainaIt is also small enough to be a good place to test our system.

Why is it important to find Why is it important to find alternate and renewable alternate and renewable

fuel sources for our fuel sources for our COMMUNITY?COMMUNITY? FOSSIL FUELS ARE:FOSSIL FUELS ARE:

Limited, Demand is increasing, Cost Limited, Demand is increasing, Cost is increasing, Creates pollutionis increasing, Creates pollution

THE ALTERNATIVE ENERGY WE THE ALTERNATIVE ENERGY WE ARE LOOKING AT ARE:ARE LOOKING AT ARE:UNLIMITED, FREE, AND IS UNLIMITED, FREE, AND IS

POLLUTION FREEPOLLUTION FREE

Problems Problems with Carswith Cars

CostCostEfficiencyEfficiencySafetySafety

Why Did We Choose Solar/Wind Powered Golf

Carts? First we thought of using biomass as fuel,

but the conversion plants did not seem practical.

Then we thought of pedal powered or assisted energy, but the conversion of the available golf cart was mechanically too complex to complete in time.

Why Did We Choose Solar/Wind Powered Golf

Carts?We also had a golf

cart ready for us to convert

The solar technology to convert golf carts is available

Solutions to Charge Used solar & wind energy to

run and power our system Chose solar and wind

energy because Maui is usually sunny and has trade winds

Free energy resources

Creating and storing energy during the day

Using Maui Electric Company’s grid “deposit & withdraw” energy

Photovoltaic cellsChanges sunlight to energy -absorbs energy from the sun to

semiconductor-then, electrons move around, which is called a current-when metal is put near this current you can pull current or energy out of the PV cell

Vertical Wind Turbines

Using vertical instead of horizontal to save more space

More vertical wind turbines around the stations to create more energy

They are also much quieter.

Positives of SPA SystemEquipment is expensive. For

instance, a finished SPA would cost from 8 to 10 thousand dollars, BUT it’s cheaper than maintaining a gasoline car.

Convenient locations for charging and eventually Kahului residents will purchase their own.

Assorted Sizes

Multiple sizes to accommodate all groups.

Actual Outcome of our Project

Sunetric sponsored us so we were actually able to create a prototype of the SPA.

They are also going to install a PV system on our school, which will make us more eco-friendly and save us money.

Actual Outcome of our Project

We will also have meters that we can use to run all kinds of solar related science projects….

how exciting!

We were able to share our SPA solution with the community at our SCC night and our

presentation to Mayor Tavares.