In the Solar Centipede – Part I, the solar energy captured was a very crude estimate of 205 w per hour from a 340 w top mounted panel and 2 x 100 w panels on either side of the carriage mounted vertically.

In order to get a more accurate calculation of the performance of the vehicle, it is necessary to more accurately model how much energy the vehicle has available to move.

## Online Solar Panel Calculators

National Oceanographic and Atmospheric Administration

National Renewable Energy Laboratory Calculator

Solar Electricity Handbook Solar Radiation Calculator

### Details for Calculation

Alice Springs, Australia (-23.69748, 133.88362)

Efficiency of Panel = 17.5% (340w panel on Alibaba)

Top Panel – Average Solar Radiation Per Day/M^2, per Month of Year, for top panel facing upwards = 5.25 kw/h

Top Panel Available Energy = Total Radiation * efficiency * area = 5.25 * 0.175 * 2 = **1.83 kw/h per day**

Side Panels – Average Solar Radiation Per Day/M^2, per Month of year, for assuming average orientation of 45 degrees = 3.25 kw/h

(At there are panels on either side of the vehicle, we can assume the average orientation is 45 degrees)

Side Panels Available Energy = Total Radiation * efficiency * area = 3.25 * 0.175 * 0.8 = **0.455 kw/h per day**

Total Average Available Energy in Alice Springs = **2.285 kw/h per carriage **(Yearly Average Speed over 24 hours would be,** 38 km/h**) (Yearly Average Speed Math)

Mid Winter Solar Captured Value = **1.91 kw/h per carriage **(Winter Average Speed over 24 hours would be,** 28km/h**) (Winter Average Speed Math)

Mid Summer Solar Captured Value = **3.26 kw/h** **per carriage **(Summer average Speed over 24 hours would be** 55 km/h) **(Summer Average Speed Math)