stamping tool is easy,
i suggest you to study the progressive die software, solidworks, ugnx, and proengineer.
please tool and product has a little difficult, you need to work on your own in the evening for over a year. to complete a 3d detail tool design.
use SAN, GPPS, general purpose polystyrene, K-resin, acrylic etc.
pigment, do not use low cost pigment, power, do not add titanium oxide, which will scatter the light and make the plastic not transparant.
use organic pigment, use will get the fine result.
do not use panone color code, just...
solar panel fail because of partial shading.
large current will damage the shaded cell.
that why there are 3 bypass diod, one diod protect two role of cell.
all the information print in a pc of spec sheet.
read it then come to the point of reliability.
use the army term as shell.
the temperature co efficiency of the solar panel is very small.
ie increase in temperature the out put power drop very little,
about 85% of the sun light energy transfer to heat only 15% transfer to energy. normally the solar cell will be heat up to 50 degree C,
the environment temperature is...